Backend Development is a critical part of any website or software product. It starts with understanding the client's goals and developing solutions that achieve those goals in a cost-effective and scalable way. Backend developers are responsible for more than just code: they have to have a strong understanding of databases, frameworks, and development in general. A backend developer uses this knowledge to turn complicated customer requirements into a efficient, automated solutions that the user experience (UX) team can work with.

When it comes to Backend Development, experience matters - you want someone who's seen a variety of projects and knows the best technology to use for your specific scenario.

Here's some projects that our expert Backend Developer made real:

  • Developing connected systems between websites and local servers
  • Integrating software systems using modern real-time protocols
  • Building bespoke solutions tailored to customer requirements
  • Taking over existing projects and resolving tricky bugs
  • Developing custom solutions using tried and tested frameworks

Backend Development encompasses a wide variety of skills and technologies, so it helps to have an experienced developer on your team who can navigate the complexities of building high-quality solutions. Our expert developers have already undertaken a variety of different projects and can jump into yours with confidence - benefit from their expertise, get your project completed quickly and correctly, and reduce time-to-market for your product. Get in touch today to discuss bringing your project to life, or post your own project in Freelancer.com to hire an experienced Backend Developer.

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    19 δουλειές που βρέθηκαν, με τιμές EUR

    I am looking to hire an expert freelancer with experience in front-end development, server management, and cybersecurity. The project requires a high level expert due to its complexity and should be completed within 1-3 months. The ideal candidate should have an outstanding knowledge and understanding of the various development, server and cybersecurity aspects related to this project. The payment will be negotiated after agreement.

    €302 (Avg Bid)
    €302 Μέση Προσφορά
    10 προσφορές

    I am looking for a skilled web developer to create a hospital management website. The website should have the following features: - Patient records management: The website should allow for easy storage and retrieval of patient records. In terms of design, I am open to suggestions and would like the developer to provide their expertise in creating a visually appealing and user-friendly layout. I hope you dear freelancers to propose me suitable tech to do this. Write "I am here" to prove you are not a bot. The estimated budget for this project is between $1000 and $5000.

    €2343 (Avg Bid)
    €2343 Μέση Προσφορά
    129 προσφορές
    Back End Developer Azure 6 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    We are looking for a software engineer with entry level experience in Azure to join our team. You will be responsible for migrating our current software from Digital Ocean to Azure and installing the following services: - VPN Gateway: Management - Azure Database for PostgreSQL - Azure Data Factory - Azure Machine Learning - Elastic Cloud (Elasticsearch) - Azure Managed Grafana - Web App for Containers - Github - Azure Web Application Firewall You will also be involved in developing, testing, debugging, and deploying code using these services. You should have a good understanding of cloud computing, data engineering, machine learning and web development. You should also have excellent communication and collaboration skills. You will be working with a diverse and talented team of engineers...

    €11 / hr (Avg Bid)
    €11 / hr Μέση Προσφορά
    22 προσφορές
    Online HealthCare Software Solution similiar to For Hims 5 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I am looking for a freelancer to develop an Online HealthCare Software Solution similar to For Hims. Both Frontend and Backend. The ideal candidate should have experience in developing healthcare software solutions and be able to meet the following requirements: Specific Features: - Online doctor consultations - Prescription management - Order fulfillment and delivery - ID Verification - SMS and Email Notifications - Reminders, Calendars Mobile-Responsive Design: - The software should be mobile-responsive to ensure compatibility with various devices. Budget: - The estimated budget for this project is less than $500. Type "Forhims" on top of your proposal. If you have the necessary skills and experience in healthcare software development, please submit your proposal with re...

    €209 (Avg Bid)
    €209 Μέση Προσφορά
    30 προσφορές
    Budget management app in flutter(web,ios & android) -- 2 5 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I am looking for a skilled full-stack developer to create a budget management app in Flutter for web, iOS, and Android platforms. Features: -Budget Management App  Features 01. Link an account directly and show all account balance  02. Budget Settings: add to a favorite category, low budget alert, bills reminders, nearby business suggestions etc. 03. Budget allocation among all categories like food, shopping, rent, etc. via manual entries or last month's budget 04. Transaction history and statement  05. Monthly Income and expense analysis  06. Add an expense manually/sms/bill scan 07. Add an income08. Set one-time/recurring bill reminders  09. Set financial goals and link a direct account  10. Add subscription plans APIs required: Bank balance API...

    €442 (Avg Bid)
    €442 Μέση Προσφορά
    49 προσφορές
    website for chat i want back-end 5 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I bought from a chat and I have the front-end I just want to add the chat that I bought and I want to help me in the back-end of the dashboard and I want to give the visitor of the site 5 free words then he will subscribe.

    €64 (Avg Bid)
    €64 Μέση Προσφορά
    21 προσφορές
    Need Help finishing an app 4 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I'm thrilled to see your interest in our project! I'm on a mission to find a talented developer who can work their magic on a pre-designed template. The template's theme is all about the delightful world of animals and the joy of Kid. We have two versions of the app in mind: "Pet Tok" for Android and iOS, focusing on our furry friends, and "The Kid Tok" for iOS and Android, catering to the playful imaginations of children. Now, here's the deal. I want all the features inside these apps to work flawlessly. That's where you come in! I'm not looking for a lengthy resume of your experience. Instead, I want you to impress me with your creativity by utilizing the source code provided below. Show me what you've got, and the best creation wil...

    €1176 (Avg Bid)
    €1176 Μέση Προσφορά
    118 προσφορές

    Website for League Of Legends Boosting Services Important! Front-End UI is done! We need ONLY Backend. Roles: 1) Admin 2) Customer 3) Booster 4) Verified Booster 5) Coacher 6) Banned ------------------------- How It Works: 1) Customer -> Calculate price -> Payment -> Live Chat with Booster -> Confirmation of order. 2) Booster -> List of Available Boosting Orders -> Apply for a order -> Wait for approve by Admin -> Live Chat with Customer -> Confirmation of Finishing order 3) Coacher -> List of Available Coaching Order -> Apply for a order -> Wait for approve by Admin -> Live Chat with Customer -> Confirmation of Finishing order 4) Approved Boosted -> List of Available Boosting Order -> Live Chat with Customer -> Confirmation of Finis...

    €254 (Avg Bid)
    €254 Μέση Προσφορά
    53 προσφορές
    Budget management app in flutter(web,ios & android) 3 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I am looking for a skilled full-stack developer to create a budget management app in Flutter for web, iOS, and Android platforms. Features: -Budget Management App  Features 01. Link an account directly and show all account balance  02. Budget Settings: add to a favorite category, low budget alert, bills reminders, nearby business suggestions etc. 03. Budget allocation among all categories like food, shopping, rent, etc. via manual entries or last month's budget 04. Transaction history and statement  05. Monthly Income and expense analysis  06. Add an expense manually/sms/bill scan 07. Add an income08. Set one-time/recurring bill reminders  09. Set financial goals and link a direct account  10. Add subscription plans APIs required: Bank balance API...

    €405 (Avg Bid)
    €405 Μέση Προσφορά
    24 προσφορές

    I am looking for an experienced freelancer to develop an innovative and comprehensive booking app for my gaming arcade. The app must be compatible with both iOS and Android devices. I have already prepared a list of key features that I would like to include in the app, so you should have a good idea about what I am expecting. I would also love to get your suggestions and ideas for the app. I need the app to be completed in 1-3 months. I will also need back end screens to configure the app and take spot bookings

    €1338 (Avg Bid)
    €1338 Μέση Προσφορά
    21 προσφορές
    Website creates document (ex, resume) based on user input and AI 2 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I'm looking for a website that can generate a Word document (e.g., resume), tailored to the user's input and powered by AI/chatGPT. I am seeking a skilled developer with expertise in ChatGPT to develop a dynamic web application project that revolves around creating customized Word documents based on user inputs. The selected programmer should provide support for any necessary adjustments and assistance with hosting the website for a period of time. Here are key project specifications: 1. Backend and Database Technology: The developer must utilize Python for the backend and SQL for database management. 2. User-Friendly Interface: The website should feature a user-friendly front-end where users provide responses to a series of questions organized within tabs. The system will the...

    €559 (Avg Bid)
    ΣΜΓ
    €559 Μέση Προσφορά
    48 προσφορές
    Student Management system 2 μέρες left

    I am looking for a desktop-based student management system to help keep track of student profiles, attendance, and grading in my school. We have less than 250 students enrolled, which is why we are looking for a system to suit our small community. This system should include a secure student profile and the ability to enrol, track attendance and grades accurately. In addition, the system needs to be easy to use and have access to support if needed. We want to make sure that this student management system is designed to meet our needs and provide the best user experience as possible for our students.

    €122 (Avg Bid)
    €122 Μέση Προσφορά
    18 προσφορές
    Freelance Developer C# 1 μέρα left

    I'm looking for a talented C# developer to help me with a project I'm working on. I need assistance with full-stack development, and I'm targeting a moderate timeline of 3-4 weeks for completion. The specific libraries I'd like to use are those available through .NET. I understand that this may be a wide range of tasks and understand that all milestones of the project must be managed effectively and efficiently to ensure successful and timely completion. I'm open to working with an developer who may have experience working in other languages as well, as long as they demonstrate excellent C# development knowledge. Please don't hesitate to reach out with any questions, and let's get started!

    €11 / hr (Avg Bid)
    €11 / hr Μέση Προσφορά
    83 προσφορές
    working on an existing backend system 1 μέρα left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    For two decades, I had a team of Russian developers responsible for building and maintaining a comprehensive flight, hotel, and package travel system. Unfortunately, due to sanctions, I can no longer engage their services, as transferring payments to Russia has become a challenging endeavor. Naturally, this has left them discontented and unwilling to assist in finding a suitable replacement outside of Russia. I believe that with the expertise of a skilled backend developer who can review and analyze the existing code, there's a possibility of not only maintaining but also enhancing the system's performance. While it's true that the engine is aging, it may be worthwhile to consider the option of rebuilding it from the ground up."

    €750 - €1499
    Σφραγισμένο
    €750 - €1499
    80 προσφορές

    Urgent!! Looking for someone who can make arrangements and integrate Sport Exchange API from Betfair. Also will need some help with development (Web Socketing, sync all real time data in frontend & backend, fix API integrated). This project has a strict deadline of 5 days. So please make sure you are capable of arranging and integrating the required API in my system.

    €1110 (Avg Bid)
    €1110 Μέση Προσφορά
    48 προσφορές
    Build a Membership Site for Models 3 ώρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I am looking for a freelancer to build a membership site for models. The site should have the following features: - User registration and login: Users should be able to create an account and login to access the site. - Payment gateway integration: The site should have a payment gateway integrated to allow for one-time payments. - Content management system: Models should be able to upload and showcase their work on the site. - Live streaming: Option for members to livecam - Private messages: Option to do private messaging - Offer donations or Tips to content creator: Ability for the users to donate or send tips I prefer a one-time payment model for the site. I have a rough idea of the design that I want for the site, but I am open to the freelancer's suggestions and propo...

    €1329 (Avg Bid)
    €1329 Μέση Προσφορά
    50 προσφορές
    Integration Technical Documentation 2 ώρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I am looking for someone to modify and make our developer website comprehensive integration technical documentation for API integration. It needs to be designed for highly specialized and knowledgeable developers in this field. Although I have a rough idea of what I need, I do not have an exact template or format. The freelancer must work with me to create an effective solution that provides detailed technical information correctly.

    €447 (Avg Bid)
    €447 Μέση Προσφορά
    76 προσφορές
    Explicit Filtering Phase -- 2 Έχει λήξει left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    Explicit Filtering Phase project as discussed in chat for phrase detection and resultant redirect.

    €441 (Avg Bid)
    €441 Μέση Προσφορά
    29 προσφορές
    Web stresser / booter source Έχει λήξει left

    Hello! I need someone to build this site for me, ideally if you already have experience in this industry. As a reference I can offer already finished leaked source codes. (needs to be integrated with Bitcoin payment gateway, and I don't want to redirect users, I want it to be displayed everything on my site) (I will provide Bootstrap frontend)

    €165 (Avg Bid)
    €165 Μέση Προσφορά
    10 προσφορές

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