REST APIs are the interface between clients and servers that allows for data to be shared across platforms, providing a seamless connection between applications, databases, and other resources. A REST API Developer is the programmer who helps clients connect their applications to a certain platform and ensure data is flowing between the two in an efficient, secure manner. This can help to reduce friction, improve performance & scalability, boost security, streamline website navigation, and more.

REST API Developers build and maintain custom programming to enable automated data retrieval and communication with a client’s desired application or platform. This can encompass services such as quickly integrating third-party payment systems into an existing website, minimizing manual work and improving customer experience. They may also incorporate priority systems; for example creating different APIs for handling bulk vs single requests for heavy workloads. Ultimately a REST API Developer helps clients bridge the gap between complex platforms and transform data into valuable business insights.

Here’s some projects that our expert REST API Developers made real:

  • Establishing communication between different applications
  • Creating priority systems for managing large volumes of requests
  • Integrating third-party payment systems into an existing website
  • Developing programming to seamlessly retrieve dynamic data
  • Designing secure connections to protect confidential information

Our highly-skilled REST API Developers are experts when it comes to stitching together the critical links which connect disparate platforms together. With years of experience they have been able to tackle innumerable projects which have led to successful outcomes for our clients. If you have an issue related to connecting your application with another platform or require automated data retrieval services then you can post your own project here on Freelancer.com and hire one of our experienced developers today!

Από 55,452 αξιολογήσεις, οι πελάτες αξιολογούν τους REST API Developers με 4.9 από 5 αστέρια
Πρόσλαβε REST API Developers

REST APIs are the interface between clients and servers that allows for data to be shared across platforms, providing a seamless connection between applications, databases, and other resources. A REST API Developer is the programmer who helps clients connect their applications to a certain platform and ensure data is flowing between the two in an efficient, secure manner. This can help to reduce friction, improve performance & scalability, boost security, streamline website navigation, and more.

REST API Developers build and maintain custom programming to enable automated data retrieval and communication with a client’s desired application or platform. This can encompass services such as quickly integrating third-party payment systems into an existing website, minimizing manual work and improving customer experience. They may also incorporate priority systems; for example creating different APIs for handling bulk vs single requests for heavy workloads. Ultimately a REST API Developer helps clients bridge the gap between complex platforms and transform data into valuable business insights.

Here’s some projects that our expert REST API Developers made real:

  • Establishing communication between different applications
  • Creating priority systems for managing large volumes of requests
  • Integrating third-party payment systems into an existing website
  • Developing programming to seamlessly retrieve dynamic data
  • Designing secure connections to protect confidential information

Our highly-skilled REST API Developers are experts when it comes to stitching together the critical links which connect disparate platforms together. With years of experience they have been able to tackle innumerable projects which have led to successful outcomes for our clients. If you have an issue related to connecting your application with another platform or require automated data retrieval services then you can post your own project here on Freelancer.com and hire one of our experienced developers today!

Από 55,452 αξιολογήσεις, οι πελάτες αξιολογούν τους REST API Developers με 4.9 από 5 αστέρια
Πρόσλαβε REST API Developers

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    49 εργασίες βρέθηκαν
    PWA Delivery Tracking Dashboard
    6 μέρες left
    Βεβαιωμένο

    I’m building a lightweight Progressive Web App that lets our internal admin team review everything that has already happened on the road. The interface should open instantly on any device, then present clean, filterable historical delivery data: dates, order IDs, driver notes, completion times, and any performance indicators you think will help us spot trends. Key needs • Secure, admin-only sign-in • Fast tables and simple charts that can be filtered by date range, route, driver or status • CSV / Excel export and a print-friendly view for quick audits • Built as a true PWA—offline fallback, home-screen install prompt, responsive layout • Hook up to our existing REST/JSON endpoints (or suggest a light Node/Firebase layer if that’s cleane...

    €5778 Average bid
    €5778 Μέση Προσφορά
    102 προσφορές

    I’m looking for an experienced Python developer to build a lightweight script that automates data processing from multiple REST APIs. Scope: - Fetch data from several APIs - Handle real-time responses - Clean and transform data - Output structured data ready for analytics use Requirements: - Command-line script (headless) - Accept arguments (API key, date range, output path) - Error handling (rate limits, bad responses) - Logging for debugging Preferred: - Experience with APIs and data pipelines - Python (requests, pandas) - Clean and maintainable code Deliverables: - Fully working script - Clear instructions to run it

    €6 / hr Average bid
    €6 / hr Μέση Προσφορά
    35 προσφορές
    Integrated Live-Class LMS Development
    6 μέρες left
    Βεβαιωμένο

    I need you to build a browser-based learning management system focused on professional-development courses. Students must be able to purchase a course, join scheduled live sessions through integrated video-conferencing (no external app downloads), complete self-paced content in between, and automatically receive a verifiable digital certificate once every requirement is met. Core build The platform should combine a public-facing catalogue, secure checkout, and a role-based dashboard for students, instructors, and admins. Course access has to be locked behind payment or manual enrolment so only eligible learners can view materials or enter the live room. A clean REST or GraphQL back end, a modern front-end framework, and a responsive design are all expected so the experience stays smooth o...

    €1155 Average bid
    €1155 Μέση Προσφορά
    156 προσφορές

    I have a fresh mobile app concept that I’m ready to turn into a production-quality release on both iOS and Android. I want the entire build driven from a single, well-structured Flutter codebase that compiles cleanly for the App Store and Google Play, adheres to current best practices, and is easy to maintain long-term. Here’s the direction I’ve already settled on: • State management: Provider will be the backbone. If you see a clear performance or scalability win in moving to Bloc or Riverpod for a specific module, I’m open to hearing the reasoning, but Provider should remain the primary approach. • Navigation: a classic bottom navigation bar with smooth, platform-appropriate transitions. • Responsive UI: MediaQuery will guide layout adaptations...

    €8 / hr Average bid
    €8 / hr Μέση Προσφορά
    71 προσφορές

    I’m building a new web application and the entire user interface needs to be planned, coded, and polished in React while communicating seamlessly with an existing Java-based REST API. The goal is a fast, responsive, component-driven front end that speaks the same language as the Java services behind it, so a solid grasp of both React (hooks, context, modern tooling) and core Java concepts is essential. Scope of work • Set up the project scaffold (Create React App or Vite, ESLint, Prettier, Jest). • Implement authentication against the provided Java endpoints, handling token storage and refresh. • Develop a reusable component library and page layouts that match supplied Figma designs. • Integrate REST calls for dashboard widgets, handle loading/error state...

    €219 Average bid
    €219 Μέση Προσφορά
    93 προσφορές
    Android App Development
    6 μέρες left

    I want a complete Android e-commerce application built from scratch. The core of the project is a clean, intuitive shopping experience that consumes my existing REST APIs, parses JSON responses efficiently, and presents products attractively through XML-based layouts. To succeed you’ll need to: • Hook the app to my REST endpoints for product listings, cart actions, checkout, and user accounts. • Structure all network calls responsibly, with solid error handling and graceful offline states. • Respect Android’s latest permission model when accessing camera, storage, or sensors; the app must never crash on denied permissions. • Keep UI components modular and reusable—Material Design guidelines are a must so the catalog, product detail, and checkou...

    €93 Average bid
    €93 Μέση Προσφορά
    51 προσφορές
    Migrate PHP Frontend to Nuxt 4
    6 μέρες left
    Βεβαιωμένο

    My current site runs on a custom PHP front-end. I now want the whole interface rebuilt in Nuxt 4 (Vue 3) so it plugs cleanly into my Strapi CMS. The existing features that must carry over are: • Geographical data visualisation – the map view is the heart of the product. The new build should render the same interactive maps (Mapbox, Leaflet or another modern Vue-friendly mapping library is fine) and pull the data from Strapi’s REST or GraphQL endpoints without lag or layout shifts. • Contact and feedback forms – both forms already post to Strapi; the Nuxt version should keep that flow, provide client-side validation, and send success / error messages to the user. Key expectations – Nuxt 4 project scaffolded with TypeScript support and a clear componen...

    €138 Average bid
    €138 Μέση Προσφορά
    182 προσφορές

    PROJECT OVERVIEW I am building a supplier-readiness SaaS platform (DHML IQ) using: - Frontend: WeWeb (partially complete) - Backend: Xano (database + APIs already structured) This project is NOT for designing a system. This is a strict execution role. You will implement features based on fully defined specifications, API contracts, and UI expectations that I will provide. IMPORTANT: ROLE EXPECTATION This is not a product design or architecture role. You are responsible for: - implementing UI in WeWeb - connecting to Xano APIs - ensuring data flows correctly You are NOT responsible for: - defining logic - designing system behavior - making assumptions about functionality STOP and ask if anything is unclear; do not infer. CURRENT STATE - WeWeb frontend is partially built - Xano backend...

    €414 Average bid
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    €414 Μέση Προσφορά
    88 προσφορές
    Zapier & Salesforce Chat Integration
    6 μέρες left
    Βεβαιωμένο

    I need my existing chat application’s REST API connected to Zapier so every new conversation, message, and customer detail can flow straight into Salesforce in real time. The chat platform already exposes webhooks for events such as “conversation started”, “message sent”, and “conversation closed”. Your job is to build a Zapier app or a series of Zaps that: • Receive those webhook payloads • Map the data to the correct Salesforce objects (lead, contact, case, or custom objects we agree on) • Push updates back to the chat API when status changes in Salesforce (e.g., case closed) The chat API is fully documented and uses standard JSON over HTTPS with token-based authentication. I have Zapier and Salesforce admin access ready fo...

    €898 Average bid
    €898 Μέση Προσφορά
    158 προσφορές

    I am looking for an experienced Flutter developer to build an Android mobile application for my existing website: https://trustserve.store. The app must NOT be a WebView. I need a proper Flutter-based mobile application that is fully connected to my WordPress backend using REST API, so that all data between the website and the app stays completely synchronized. Project Overview: My website is a real estate and classified listings platform (similar to OLX). The mobile app should act as a frontend and fetch/send all data from/to the website database via API. Core Requirements: - Develop a Flutter-based Android app - Integrate with WordPress REST API - Fetch listings, categories, and user data from website - Allow users to post ads (data must be stored on website) - User authentication sy...

    €78 Average bid
    €78 Μέση Προσφορά
    64 προσφορές

    We are looking for a talented and experienced Flutter Developer to build a professional News & Information Mobile App for both Android and iOS platforms. About the App: This is a News & Information app where users can read latest news, browse by category, search topics, save articles, and receive breaking news notifications. The app should be fast, smooth, and easy to use. Required Features: Home news feed with images Categories (Sports, Politics, Tech, Entertainment, etc.) Search by keyword Push notifications (Firebase) Bookmark / Save articles Dark mode & Light mode Social sharing (WhatsApp, Facebook) Google AdMob ads integration Web-based Admin Panel to upload & manage news Technical Requirements: Framework: Flutter (Android + iOS — single codebase) Backend: Fireba...

    €1001 Average bid
    €1001 Μέση Προσφορά
    89 προσφορές

    I’m building a browser-based system that lets users open and manage recurring deposits entirely online. The first milestone—and the one I want you to focus on—is a precise, easy-to-use Interest Rate Calculator that can handle variable terms, compounding frequencies, and flexible contribution amounts while presenting results in real time. Because the whole solution will live on the Web, there’s no need for native desktop or mobile builds right now. I do, however, want the codebase structured so that additional features such as automated deposit scheduling or monthly statements can slot in later without major refactoring. Scope of this engagement • Design a clean, responsive UI (React, Vue, or similar) for the calculator screen and basic account dashboard. ...

    €15 / hr Average bid
    €15 / hr Μέση Προσφορά
    50 προσφορές

    We are looking for an experienced developer or team to help us set up and integrate a WeChat Official Account (Corporate/Service Account) and connect it with our internal systems. The main goals: 1. Successfully create and verify a WeChat Official Account 2. Enable a web-based interface (similar to WhatsApp Web) for message handling 3. Integrate WeChat messaging into our Odoo CRM system ⸻ Current Situation / Problems • We do not currently have a properly verified WeChat Official Account • We are facing difficulties with: • Account registration (Chinese requirements, verification, etc.) • Accessing or building a web interface for message management • We need a scalable solution for customer communication (mainly Chinese market) ⸻ Scope of Work 1. WeCha...

    €152 Average bid
    €152 Μέση Προσφορά
    100 προσφορές
    Java Basic E-Commerce App
    5 μέρες left

    I’m putting together a simple, learning-oriented e-commerce web application in Java and would like clean, well-commented code that I can study and extend later. The core flow is straightforward: a visitor lands on the site as a Guest, registers or logs in to become a Customer, browses a product catalogue, adds items to a cart, and submits an order—no payment gateway needed. Role management must cover Admin, Customer, and Guest. From the Admin dashboard I need the ability to Add, Edit, and Delete products, view every order that comes through, and manage the user list. For data storage we’ll use MySQL; please include a schema script plus any sample seed data so the app is ready to run after import. I’m comfortable running the project with Maven or Gradle, so structu...

    €22 Average bid
    €22 Μέση Προσφορά
    28 προσφορές
    VEHICA-Next.js Headless Integration
    5 μέρες left
    Βεβαιωμένο

    I am wanting to turn my Vehica-based theme () WordPress site into a true headless setup, with the public-facing experience driven entirely by a application ( by 98d). To complete the transition I need the two environments tightly integrated so that: • User authentication flows run through WordPress but feel native inside the app (registration, login, password reset, role-based access). • The same database powers both layers—when a vehicle, blog post, page, or user profile is added or updated in WordPress it must appear instantly (or near-real-time) in the frontend. • UI and UX remain consistent; colours, fonts, listing cards and search filters from Vehica need to be mirrored in the React components so visitors never notice they have left WordPress. Vehica wi...

    €15 / hr Average bid
    €15 / hr Μέση Προσφορά
    192 προσφορές

    I have a one-time purchase workflow almost ready, but I still need the final step: when the buyer clicks my PayPal payment button, they must be taken smoothly through checkout and, once the transaction is approved, automatically receive 10 invoices. The pages are being coded in Visual Studio Code, so please supply clean, well-commented code snippets or modules that drop straight into that environment. I do not mind whether you handle the PayPal interaction with their JavaScript SDK, REST API, or a lightweight serverless function—use whichever approach gets a fast, reliable redirect and confirms payment instantly. What matters is that the moment PayPal sends back its success response the customer is served those 10 invoices (PDF is fine) without extra clicks or waiting. If you p...

    €115 Average bid
    €115 Μέση Προσφορά
    121 προσφορές

    I have a growing archive of high-resolution intraoral photos and I need an AI mechanism that can automatically locate every tooth in each image, assign the correct FDI or Universal numbering, and clearly classify each tooth type (incisor, canine, premolar, molar, wisdom). You are free to decide whether a pre-trained or custom-built model is best; accuracy and speed matter more to me than the underlying brand of framework. Python with PyTorch or TensorFlow, OpenCV for preprocessing, and a clean REST or CLI inference interface would suit my workflow, but if you have a more elegant stack, I’m open. Key deliverables • A trained model capable of processing new intraoral 3d scans and returning JSON with tooth positions, numbers and classes. • Lightweight script or API e...

    €10 / hr Average bid
    €10 / hr Μέση Προσφορά
    22 προσφορές
    Desarrollo de app Android
    4 μέρες left

    Necesito crear una aplicación móvil nativa para Android. El objetivo principal es contar con un producto funcional que pueda instalarse en dispositivos Android modernos y publicarse en Google Play una vez completada. Alcance de trabajo • Diseño de la interfaz principal siguiendo las guías de Material Design. • Programación del flujo básico de pantallas y la lógica central de la app. • Integración de cualquier API o servicio web que definamos juntos (REST/JSON). • Generación del APK de prueba y entrega del código fuente completo en Git. Tecnologías sugeridas Kotlin o Java, Android Studio, Firebase (si se requiere backend ligero). Entregables mínimos 1. Código fuente bien c...

    €442 Average bid
    €442 Μέση Προσφορά
    114 προσφορές
    StepWise / .NET Job Support Expert
    4 μέρες left
    Βεβαιωμένο

    StepWise / .NET Job Support Expert (REST/SOAP APIs | SQL | Excel) We are looking for an experienced professional to provide **real-time job support** for a StepWise Developer role (Optum platform / .NET ecosystem). Role Type: * Remote job support (1–2 hours daily) * Live sessions via Google Meet * Long-term engagement Required Skills: * Microsoft .NET / ASP.NET * StepWise platform (or similar workflow/rating systems) * REST & SOAP APIs * SQL Server (queries, database handling) * Advanced Excel (formulas, data handling) * Experience with enterprise application support Responsibilities: * Provide live troubleshooting support * Assist in debugging real-time issues * Help with workflow automation and integrations * Guide through complex logic and system behavior Engagement...

    €8 / hr Average bid
    €8 / hr Μέση Προσφορά
    15 προσφορές
    Web MQTT Dashboard with REST
    4 μέρες left
    Βεβαιωμένο

    I want a web based application suite which can be use to manage multiple test centre. The component are 1. Web base appointment scheduling system for all centre 2. A Registration application 3. A Test Monitoring system 4. A Reporting System 5. Webservice to interface with other system This need to link to a web based appointment management application so user can prefix the slot seeing the availability. I want a web based application which allows for user registartion where we capture face and other details and after that the user undertake some tests where IOT devices send data and which need to be correlated to user with date time. The system need a sensor IOT application also that listens to live sensor data arriving over MQTT (a raw TCP socket fallback is acceptable), stores ...

    €224 Average bid
    €224 Μέση Προσφορά
    45 προσφορές
    Open-Source Automation Intern Needed -- 3
    4 μέρες left
    Βεβαιωμένο

    We are looking for a TECH INTERN with hands-on skills to work on multiple open-source and automation projects for a startup environment. Open Projects: 1. Installation & maintenance of SuiteCRM on Hostinger 2. Installation of open-source ERPNext on laptop from GitHub 3. WhatsApp API automation using Botbee and integration with ERPNext & SuiteCRM 4. n8n open-source installation and development of AI agents for WhatsApp & ERP integration 5. Development of IoT equipment movement dashboard with future AI-based report automation via n8n Engagement & Payment: 1. Payment on no of hours - target task hours 2. Flexible working hours We would prefer that freelancer work on our laptop by taking the remote access This position is for intern who would like to work while learning

    €3 / hr Average bid
    €3 / hr Μέση Προσφορά
    18 προσφορές
    Full Stack + AI/ML Developer for PPC System
    4 μέρες left
    Βεβαιωμένο

    Full Stack + AI/ML Developer Needed – AI-Based Production Planning System (Fixed Price) We are a software product company building an AI-based Production Planning & Control (PPC) platform for a manufacturing client. We are looking for a skilled Full Stack + AI/ML developer to join us as a long-term collaborator and work as an extended part of our team. --- PROJECT OVERVIEW Build a web-based, AI-powered PPC system with the following key modules: • 14-step automated workflow (Sales Order → Dispatch → Billing) • ERP Integration (Tally API / ODBC) • AI features: production scheduling, demand forecasting, delay prediction, resource optimization • Role-based access control for 9+ departments • Real-time dashboards & MIS reports • Automat...

    €3556 Average bid
    €3556 Μέση Προσφορά
    37 προσφορές
    Enterprise Salesforce Architecture Lead
    4 μέρες left
    Βεβαιωμένο

    I am kicking off a global Salesforce programme and need a hands-on Technical Architect who can own the end-to-end architecture for two clouds—Sales Cloud and Service Cloud. The strategic objective is crystal clear: radically improve our sales processes, with particular emphasis on lead management, opportunity tracking and sales forecasting. The role goes far beyond drawing diagrams. You will define the technology strategy, translate business requirements into an extensible solution design, and steer multiple scrum teams through implementation. Expect to work with Apex, Lightning Web Components, Flow, REST/SOAP APIs, middleware integration tools and a mature CI/CD pipeline based on SFDX and Git. Data modelling, security design and performance tuning come with the territory, as does...

    €1232 Average bid
    €1232 Μέση Προσφορά
    16 προσφορές
    Complete & Optimize WordPress Theme
    4 μέρες left
    Βεβαιωμένο

    My custom WordPress theme is already live, but several areas still need polish and new features. The codebase—PHP for core logic and JavaScript for dynamic blocks—has been set up with modern tooling and version control. I now want to move from “mostly-built” to production-ready while keeping momentum through daily collaboration. Here is what I need from you: • Finalise the half-finished features already in the repository, making sure they follow WordPress best practices. • Refactor and clean the existing PHP, JavaScript, and SCSS so it is readable, modular, and easy to maintain. • Build the remaining planned functionality; think new Gutenberg blocks, enhanced admin screens, and any extras we define together. • Commit code and update tasks...

    €11 / hr Average bid
    €11 / hr Μέση Προσφορά
    169 προσφορές

    Summary Senior Software Engineer – Centric PLM Migration (C# / .NET) Duration: 6 months, full-time (~40 hrs/week) Location: Remote Overview: Fabletics is migrating its Product Lifecycle Management system from Centric PLM 7.2 → 8.0. A migration engine already exists in C# (.NET 4.7.2). This role is to take ownership of that codebase, stabilize it, and drive it to production. This is not a greenfield build. You will be working with: - real production data - live APIs with inconsistent behavior - complex dependency ordering across product hierarchies You should be comfortable stepping into an incomplete system and making it reliable. What You’ll Own: Migration Engine (C# / .NET 4.7.2) - Read from Centric 7.2 PostgreSQL HSE tables (ed_style, ...

    €9 / hr Average bid
    €9 / hr Μέση Προσφορά
    72 προσφορές

    Ich suche Unterstützung beim Aufbau eines webbasierten Ticket-Systems, das sowohl unsere Mitarbeiter als auch unsere Kunden intuitiv nutzen können. Die Lösung soll folgende Kernfunktionen abdecken: • Kanban-Ansicht: Jede Phase des Ticket-Workflows muss sich per Drag-and-Drop auf einem Board verschieben lassen. • Ticket-Erfassung: Neue Tickets werden wahlweise über ein responsives Webformular oder automatisch über einen Mail-Parser erzeugt. • Integrierter Chat: Zu jedem Ticket soll ein kontextbezogener Kommunikations-Thread mit @Mentions und Benachrichtigungen verfügbar sein. • Filesharing: Nutzer müssen Dokumente direkt am Ticket hochladen, versionieren und wieder herunterladen können. • Timetracking: Arbeitszeiten l...

    €15 / hr Average bid
    €15 / hr Μέση Προσφορά
    93 προσφορές
    Immediate Twilio WhatsApp Tweak
    3 μέρες left
    Βεβαιωμένο

    I need someone experienced with Twilio WhatsApp. I already have a working script that sends alerts. I only need to adjust the message text (wording + format). No other changes — everything else must stay the same. ⚡ This job is for right now. If you cannot start immediately, please do not apply. I’ll give access and test live together.

    €20 Average bid
    €20 Μέση Προσφορά
    75 προσφορές

    I’m looking for a sharp front-end specialist to take our existing web application and make the user experience shine. The backend is already solid; what I need now is modern, responsive and accessible UI work that feels fast and polished across major browsers and devices. You’ll be working with our REST-based API, so comfort with JSON, Axios / fetch and state management (React + Redux or comparable) is important. Figma files and a clear component map are ready—your task is to translate those designs into production-ready code, wire them to the API, and leave the codebase clean, tested and easy to maintain. Key things I expect • Pixel-perfect implementation of the supplied designs • Reusable, well-documented components • Cross-browser and mobile resp...

    €16 / hr Average bid
    €16 / hr Μέση Προσφορά
    243 προσφορές

    I have an Android application with an admin panel interface already designed in HTML, CSS, and Bootstrap. Previously the backend was built using ASP.NET Web API. I now want to rebuild the backend using Laravel and connect it with the existing Android application and admin panel. The freelancer will develop Laravel REST APIs and integrate them with the provided admin panel frontend. Scope of Work: Develop Laravel backend REST APIs Implement full CRUD operations (Add / Edit / Delete / View) Integrate APIs with provided admin panel frontend (HTML, CSS, Bootstrap) Ensure APIs work properly with existing Android application Setup MySQL database structure Convert existing database structure if required Deploy Laravel backend on hosting server Deploy admin panel frontend on server Configure fi...

    €92 Average bid
    €92 Μέση Προσφορά
    49 προσφορές

    Saya membutuhkan sebuah aplikasi mobile sederhana yang bisa dijalankan di iOS dan Android. Fokus utamanya hanyalah modul Login pengguna—cukup layar masuk, pendaftaran, dan lupa kata sandi yang terhubung ke API sederhana (REST atau GraphQL). Silakan gunakan pendekatan native maupun cross-platform (Flutter, React Native, atau sejenisnya) asalkan hasil akhirnya stabil di kedua platform. Deliverable yang saya harapkan: • Kode sumber lengkap dan terstruktur • Berkas build/arsip siap rilis untuk App Store & Play Store • Dokumentasi singkat cara menjalankan proyek secara lokal dan cara mengganti endpoint backend Saya akan menilai proyek berdasarkan kemudahan build, kejelasan struktur kode, dan kelancaran proses login.

    €23 / hr Average bid
    €23 / hr Μέση Προσφορά
    19 προσφορές

    Job Overview: We are seeking a highly skilled Senior ERP Developer with 5+ years of experience to design and build robust, scalable ERP solutions tailored for the manufacturing industry. The ideal candidate will have strong expertise in modern web technologies including React.js, Node.js, and NestJS, along with hands-on experience in both relational (SQL) and NoSQL (MongoDB) databases. In this role, you will be responsible for developing and enhancing ERP modules, contributing to system architecture, and ensuring high performance and reliability of applications. You will work closely with cross-functional teams to translate business requirements into technical solutions, with a strong focus on manufacturing workflows and enterprise-grade systems. Experience with cloud platforms such as AWS...

    €321 Average bid
    €321 Μέση Προσφορά
    62 προσφορές
    Досвідчений Laravel Розробник
    2 μέρες left
    Βεβαιωμένο

    Я підтримую великий веб-проєкт і хочу залучити досвідченого Laravel-фахівця, який вільно володіє українською та англійською. Вам доведеться паралельно розробляти нові модулі, тримати в порядку наявний код і безболісно підключати сторонні REST API. Працюємо з чистим PHP 8+, Laravel 9/10, MySQL та git-workflow, тож упевнений досвід у цих технологіях критично важливий. Буде здорово, якщо ви також орієнтуєтеся у Vue.js чи React і комфортно почуваєтесь із Docker — ці навички час від часу знадобляться для фронтенд-компонентів та контейнеризації. Працюємо повністю віддалено, графік гнучкий, а співпраця розрахована на довгу дистанцію: мені потрібен партнер, який може брати завдання у роботу самостійно, пропонувати рішення і відповідати за якість коду. Очікую, що при приєднанні ви: ...

    €15 / hr Average bid
    €15 / hr Μέση Προσφορά
    44 προσφορές

    I’m building a fully-automated lead generation engine and need an engineer who can wire everything together end-to-end. The core flow pulls prospects from Clodo, enriches them with Clay, sequences outreach through Apollo, syncs engagement data back to HubSpot, and surfaces every scored lead in a dedicated Slack channel. All of these services expose solid REST/GraphQL APIs, so the job is primarily about clean JSON handling and resilient workflow orchestration. Key functions I want in place: • Email outreaches, data enrichment, plus lead scoring and routing run automatically on every new record. • GitHub Actions triggers and monitors the pipeline, with Python scripts responsible for transformation, enrichment and retry logic. • Each step posts concise status and error m...

    €99 Average bid
    €99 Μέση Προσφορά
    22 προσφορές
    Hourly Lovable Web App Developer
    2 μέρες left
    Βεβαιωμένο

    I’m running several SaaS projects on Lovable and need a versatile developer I can rely on by the hour. Every task revolves around building and refining full-stack web applications: crafting responsive, accessible interfaces in React.js, wiring up the backend logic, and exposing or consuming well-structured APIs. Most assignments arrive as concise tickets—sometimes a fresh feature, sometimes a bug fix—so the ability to switch context quickly and keep code clean is key. You’ll commit through Git, open pull requests for review, and keep progress visible on the shared board. I release payment the moment your code lands successfully in staging. Typical deliverables • A new or updated React.js screen that meets supplied Figma specs • Corresponding backen...

    €11 / hr Average bid
    €11 / hr Μέση Προσφορά
    294 προσφορές
    Full-Stack Bug Fixes & Features
    1 μέρα left
    Βεβαιωμένο

    My web application needs a thorough full-stack pass. Both the frontend and backend contain bugs that appear during normal user flows, and resolving these is the first priority. Right after stabilising the codebase, we will dive into new functionality: rolling out fresh features, polishing and extending existing ones, and wiring in selected third-party services. Feature work spans three fronts: user-interface improvements built in React (TypeScript), deeper backend logic in Node.js/Express, and new REST/GraphQL APIs that will be documented with OpenAPI. Everything lives in a GitHub repo with a Kanban board and CI pipeline; work happens on feature branches, merged by pull request with unit tests. Deliverables • Repaired critical and minor bugs recorded in the tracker • Updated ...

    €219 Average bid
    €219 Μέση Προσφορά
    97 προσφορές

    My goal is to put an always-on, online vibration-based condition monitoring solution in place for our industrial machinery. The system must continuously read and log RPM, displacement, and acceleration, then publish the data to a web dashboard where trending, thresholds, and automatic alerts can be configured in real time. Here is what I already have and what I expect from you: • Sensors & acquisition: I can source standard piezo or MEMS accelerometers and an RPM pickup, but I need guidance on the optimal sensor grade, mounting positions, and a compact DAQ (Raspberry Pi, ESP32, NI cDAQ, or similar—open to your recommendation) capable of simultaneous sampling. • Connectivity & protocol: Data has to leave the shop floor securely. MQTT or REST over Ethernet/Wi-Fi i...

    €121 Average bid
    €121 Μέση Προσφορά
    34 προσφορές

    Quiero integrar mi sitio de Wix con N8N y para que los procesos de negocio se ejecuten solos. La idea es contar con un ecosistema donde cada vez que un usuario interactúe en la web (por ejemplo, completa un formulario o realiza una compra) se desencadene un flujo de trabajo en N8N que actualice datos, envíe mensajes en y, de ser necesario, devuelva resultados visibles en Wix. Trabajo deseado • Configurar y personalizar N8N — ya sea en cloud o self-hosted, lo que resulte más eficiente — creando los nodos y webhooks necesarios. • Conectar Wix (Velo) mediante API REST o las herramientas internas para que los disparadores lleguen a N8N sin fricciones. • Integrar de forma que reciba notificaciones claras y, si corresponde, permita al equip...

    €380 Average bid
    €380 Μέση Προσφορά
    79 προσφορές
    Multi-Vehicle GPRS Tracking System
    1 μέρα left
    Βεβαιωμένο

    I want to build a turnkey GPRS-based tracking solution for a small fleet of up to ten vehicles. The platform must stream each vehicle’s live GPS position, keep a searchable log of every route taken, raise instant geofencing alerts, and give me remote engine-cut capability together with reliable petrol-level monitoring. Hardware • A compact on-board unit that pairs a high-sensitivity GPS receiver with a quad-band GSM/GPRS modem. • Wired inputs for ignition status, fuel-level sensor and an output relay for safe engine cut-off. • Over-the-air firmware update support so I never have to recall a device for basic fixes or tweaks. Firmware & Protocol The device should package GPS, fuel and status data in efficient binary or JSON packets and push them to my serve...

    €144 Average bid
    €144 Μέση Προσφορά
    135 προσφορές

    Ми шукаємо досвідченого Laravel розробника для роботи над веб-проєктом. Потрібно розробляти нові функції, підтримувати існуючий код та інтегрувати сторонні API. Вимоги: Досвід з Laravel (2+ роки) Знання PHP, MySQL Досвід роботи з REST API Вміння працювати самостійно Буде плюсом: Досвід з Vue.js або React Розуміння Docker Формат: віддалена робота, довгострокова співпраця.

    €18 / hr Average bid
    €18 / hr Μέση Προσφορά
    77 προσφορές

    I want a complete Android-only social networking app built from the ground up and, just as important, I want to understand every step that goes into creating it. Your role will be two-fold: first, deliver a fully functional APK (plus clean, well-commented source code); second, walk me through your architecture, toolchain, and deployment process so I can replicate or extend the project later. Core expectations • Native Android build (Kotlin or Java with Android Studio). • Standard social features—user registration/login, profile editing, posts with images/video, likes/comments, and real-time notifications. • Secure back-end (Firebase, Supabase, or a lightweight REST API with SQL) and cloud storage for media. • Clear documentation: project setup, key code s...

    €344 Average bid
    €344 Μέση Προσφορά
    35 προσφορές

    Full-Stack Software Engineer — Sherpa Teknologi Lokasi: Jakarta (hybrid / fleksibel) · Tipe: Full-time · Mulai: Secepatnya Tentang kami Sherpa Teknologi mentransformasi bisnis partner kami dengan mengidentifikasi dan mengimplementasikan solusi teknologi yang berdampak komersial. Kami sedang membangun platform olahraga dengan memperluas technology stack kami saat ini, yang sudah mencakup automated upload, face recognition, sistem booking-to-payment yang sepenuhnya online, dan integrasi dengan payment provider. Kami mencari Full-Stack Engineer untuk membantu mewujudkan hal ini. Kami senang membangun hal-hal inovatif yang berdampak positif bagi bisnis, orang, dan Indonesia. Kami self-driven, kami ambisius, kami mampu bekerja mandiri sekaligus berkolaborasi dengan baik, kam...

    €4 / hr Average bid
    €4 / hr Μέση Προσφορά
    5 προσφορές
    Atera-Autotask Zapier Automation
    1 μέρα left
    Βεβαιωμένο

    I need a set of production-ready Zaps that link Atera RMM with Autotask PSA through their REST APIs. The goal is to eliminate the swivel-chair work my team currently does and have data move instantly and accurately between the two systems. Core workflows to build and fully test: • Ticket creation and updates – alerts that exceed set thresholds in Atera should open or update a corresponding ticket in Autotask. • User account synchronization – new or changed contacts in either platform. • Alert notifications – critical device alerts from Atera must trigger real-time notifications inside Autotask, including the original alert body for context. • Company ↔ Customer synchronization – when a company is added or edited in Autotask it should ...

    €380 Average bid
    €380 Μέση Προσφορά
    153 προσφορές

    I need a lean, battery-friendly Android app that can stream a smartphone’s GPS coordinates in real time. Once the user grants permission, the app should run as a foreground service, capture accurate latitude and longitude, and post them every few seconds to the REST endpoint I will provide. A small in-app Google Maps view must mirror the live position so we can confirm everything instantly. Please follow current Android 13 location-permission rules and make sure tracking survives reboots, Doze, and other battery optimisations. I will share the API spec; you may use Retrofit, Volley, or any modern HTTP client you prefer, as long as JSON payloads stay lightweight. Deliverables • Complete Android Studio project (Kotlin or Java) with well-commented code • Signed release A...

    €11 Average bid
    €11 Μέση Προσφορά
    13 προσφορές

    VNSRooms is ready for its leap from concept to a fully-fledged mobile experience. The goal is a single Flutter code-base that ships smooth, beautiful, and highly scalable Android & iOS apps for booking verified accommodations across India. Core scope • Craft a modern, reactive UI that lets users browse PGs, flats, villas, farmhouses and vacation stays with fast, fluid transitions. • Wire up secure authentication by email + password, supported by JWT tokens and OTP verification for critical actions. • Implement advanced search and filtering, property cards, rich image galleries, amenity lists, and geo-tagged location display. • Build an end-to-end booking flow: wishlist → booking calendar → checkout. • Integrate Razorpay as the exclusive pay...

    €330 Average bid
    €330 Μέση Προσφορά
    86 προσφορές

    Saya membutuhkan sebuah aplikasi mobile sederhana yang bisa dijalankan di iOS dan Android. Fokus utamanya hanyalah modul Login pengguna—cukup layar masuk, pendaftaran, dan lupa kata sandi yang terhubung ke API sederhana (REST atau GraphQL). Silakan gunakan pendekatan native maupun cross-platform (Flutter, React Native, atau sejenisnya) asalkan hasil akhirnya stabil di kedua platform. Deliverable yang saya harapkan: • Kode sumber lengkap dan terstruktur • Berkas build/arsip siap rilis untuk App Store & Play Store • Dokumentasi singkat cara menjalankan proyek secara lokal dan cara mengganti endpoint backend Saya akan menilai proyek berdasarkan kemudahan build, kejelasan struktur kode, dan kelancaran proses login.

    €381 / hr Average bid
    €381 / hr Μέση Προσφορά
    32 προσφορές
    Truck Delivery Planning Web Tool
    4 ώρες left
    Βεβαιωμένο

    I need a web-based system that allows our dispatchers to plan and control daily truck operations from a single screen. The application must combine three core abilities: smart route optimisation, real-time fleet tracking and an intuitive delivery-scheduling workspace. Here is what I expect to receive: • Fully responsive web app, secured with role-based log-in, designed around dispatcher workflows. • Map dashboard (Google Maps, Mapbox or similar) that plots every vehicle’s live GPS feed and refreshes automatically. • Optimisation engine that can reorder stops, respect delivery time windows, vehicle capacity and current traffic, then output the most efficient route with distance and time savings visible. • Drag-and-drop scheduler and calendar view where new jobs can...

    €6372 Average bid
    €6372 Μέση Προσφορά
    218 προσφορές
    Email NLP Classifier & NER -- 2
    3 ώρες left
    Βεβαιωμένο

    I have a large, continually growing collection of emails that needs to be processed automatically. The goal is twofold: 1. Classify each email into predefined business categories with high accuracy. 2. Extract relevant entities (names, dates, IDs, product references, etc.) from the same messages. You will own the entire machine-learning workflow. That means cleaning and exploring the raw email text, crafting useful features, training and tuning your models, and packaging the final solution behind an API that I can call from our existing back-end. Python is a must, and I’m comfortable with either TensorFlow or PyTorch for the deep-learning components—use whichever lets you move fastest. Traditional techniques with Scikit-learn are welcome wherever they make sense. Because t...

    €111 Average bid
    €111 Μέση Προσφορά
    12 προσφορές

    We are looking for a skilled developer to build a Google Drive to Google Gemini AI Connector. The goal is to create a secure, reusable application that allows querying and processing documents stored in Google Drive using Gemini’s AI capabilities. Key Features: - OAuth2-secured Google Drive integration (read-only access) - Full Google Gemini API support - RAG (Retrieval-Augmented Generation) for intelligent document processing - Web interface for user-friendly querying - REST API for programmatic acces - Support for multiple file formats: PDF, Docs, Word, Text, CSV - Reusable template to create multiple independent knowledge bases Deliverables: - Fully functional connector application - Complete, well-documented source code - Configuration files and setup instructions - Web interfa...

    €153 Average bid
    €153 Μέση Προσφορά
    162 προσφορές

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