FastAPI Jobs

I’m putting together a sleek one-page portfolio with these fixed sections: Home, About Me, Service, Project, and Contact. The design must feel unmistakably modern—clean typography, balanced white space, fluid scrolling, and pixel-perfect alignment across desktop and mobile. Tech stack I expect you to use: • React / for the front end • Python / FastAPI to expose all back-end endpoints • A lightweight AI/ML component for an in-page assistant (any well-known library is fine) • Optional C++/C snippets if you find performance-critical pieces that truly benefit • RESTful JSON between layers Key features to implement 1. Single-page experience: smooth in-page navigation with deep-link support. 2. AI assistant: a simple yet functional ML model runni...

FastAPI Backend Debugging & Bug Fixing I need an experienced Python/FastAPI developer to debug and fix issues in an existing backend application. Tasks: Review the existing FastAPI backend and identify the root causes of reported issues Debug API endpoints, request/response handling, validation, authentication, and business logic Fix errors, exceptions, and unexpected API behavior Check database interactions and API integrations where relevant Review async/await and dependency handling for potential issues Improve error handling and logging where needed Test the affected endpoints after making fixes Make sure existing functionality is not broken by the changes Requirements: Strong Python and FastAPI experience Experience debugging REST APIs Familiarity with PostgreSQL or similar d...

Project Description: We are looking for a skilled Engineer / Developer to build a fully localized, containerized Scraping & Intelligence Platform deployed via Docker Compose. The system automates .onion site discovery, recursive multi-engine scraping, content extraction, and automated categorization using a free, local tech stack. (IMPORTANT): Automated bids will be immediately ignored and reported, Briefly outline your experience with Python asyncio, Tor routing/proxies, Playwright/FastAPI. and your suggestions. 1/ Core Stack Requirements: - Backend & API: Python 3.12 (FastAPI), SQLAlchemy / PostgreSQL, Celery + Redis for task queues. - Scraping & Tor Routing: httpx, Playwright (Headless Chromium), custom SOCKS5 Tor circuit rotation logic, and proxy verification. - Local AI...

Looking for a Full Stack AI Developer (Strong English + Technical Skills) I’m building AI-powered products (LLMs, RAG systems, AI agents, workflow automation, and full-stack AI solutions) with an experienced engineering team. Most of our developers are highly skilled technically, but we’re looking for one more senior developer who can confidently communicate in English with international clients. Your role would include: - Joining client meetings and understanding business requirements - Discussing technical solutions clearly - Acting as the main communication bridge between clients and our engineering team - Participating in architecture discussions and code reviews - Helping translate requirements accurately to the team You’ll be fully supported by an experienced AI...

Timetable Generator — Automated College Scheduling SaaS A multi-tenant web application that automatically generates conflict-free timetables for colleges and universities using constraint programming. The Problem Creating timetables manually for colleges is a time-consuming, error-prone process. Scheduling conflicts — a teacher in two places at once, a room double-booked, a class group with overlapping lectures — are common and hard to catch manually. The Solution Timetable Generator automates this entire process. College admins simply enter their teachers, courses, rooms, time slots, and class groups — and the system generates a complete, conflict-free timetable in seconds. Tech Stack Backend: Python, FastAPI, SQLAlchemy, Alembic, PostgreSQL Frontend: React, T...

I need a complete mechanic / two-wheeler workshop management app for a real bike/scooter shop in India (local PC install preferred). What the software must do Customers & vehicles — name, phone, WhatsApp, number plate, make/model Appointments — daily shop capacity (green/yellow/red), book slots Job cards — vehicle entry, status flow (received → work → ready → completed), bay/mechanic Manual labour & parts — enter service name + ₹ per job (no fixed price catalogue required) Extra repairs — draft WhatsApp for customer approval, then add to estimate/bill Estimates & invoices — GST (e.g. 18%), discount, advance payment, balance due Owner bill approval — owner must approve bill before final invoice WhatsApp messages — c...

Sensei AI — Institutional-Grade Stock Analysis Platform I built Sensei AI, a real-time trading intelligence platform covering all 50 Nifty stocks, designed to bring institutional-level AI analysis to retail investors. The system unifies five distinct AI model families into a single scored decision engine (−5.0 to +5.0): - Classical ML — Random Forest with SHAP-based feature attribution for explainable UP/DOWN probability - Deep Learning — Custom LSTM and causal Temporal CNN (PyTorch) for 5-day return forecasting - Reinforcement Learning — PPO agent (Stable-Baselines3) trained via a custom Gymnasium trading environment for BUY/SELL/HOLD actions - Regime Detection — Gaussian Hidden Markov Model to classify BULL/BEAR market states - Financia...

I already have a working chatbot and chat system written in Python; now I want to transform it into a full-fledged customer-service agent. Its core jobs are clear: answer FAQs, process orders, and handle complaints or return requests. All of this must work seamlessly inside both my website and our upcoming mobile app. What I need from you • Review and refactor the existing Python codebase so it is clean, modular, and ready for production. • Strengthen the NLP logic so common customer questions are recognised reliably and routed to the right action. • Integrate order-processing and ticketing endpoints (they are REST/JSON) so the bot can create, update, and close orders or complaint cases. • Package the finished bot as an easily embeddable web widget plus a light...

I already have a working chatbot and chat system written in Python; now I want to transform it into a full-fledged customer-service agent. Its core jobs are clear: answer FAQs, process orders, and handle complaints or return requests. All of this must work seamlessly inside both my website and our upcoming mobile app. What I need from you • Review and refactor the existing Python codebase so it is clean, modular, and ready for production. • Strengthen the NLP logic so common customer questions are recognised reliably and routed to the right action. • Integrate order-processing and ticketing endpoints (they are REST/JSON) so the bot can create, update, and close orders or complaint cases. • Package the finished bot as an easily embeddable web widget plus a light...

I’m building a web-based platform aimed squarely at portfolio management. The core of the product is a clean, dashboard-style interface that lets users see how their positions are performing and understand the risk they’re carrying at a glance. Here’s the experience I’m after: • A single-page front end that loads fast, adapts to desktop and mobile, and presents performance tracking widgets (P&L, time-weighted returns, benchmark comparisons) alongside concise risk assessment panels (volatility, beta, VaR). • A secure back end that ingests market prices from an external data API, stores both historical and intraday snapshots, and calculates the metrics that feed the dashboard. • User accounts with authentication, encrypted storage for portf...

I already have a working chatbot and chat system written in Python; now I want to transform it into a full-fledged customer-service agent. Its core jobs are clear: answer FAQs, process orders, and handle complaints or return requests. All of this must work seamlessly inside both my website and our upcoming mobile app. What I need from you • Review and refactor the existing Python codebase so it is clean, modular, and ready for production. • Strengthen the NLP logic so common customer questions are recognised reliably and routed to the right action. • Integrate order-processing and ticketing endpoints (they are REST/JSON) so the bot can create, update, and close orders or complaint cases. • Package the finished bot as an easily embeddable web widget plus a light...

I have an existing front-end ready to go and now need a solid Python backend built and put online. Please architect and code the server side in Python—feel free to choose the framework you are most comfortable with (Django, Flask or FastAPI all work for me) as long as it is scalable and well-structured. Core expectations • Develop clean, well-documented code that exposes all required endpoints so the front-end can log users in, store and retrieve data, and talk to third-party services. • Set up a production-ready database and handle migrations. • Configure, secure and deploy the application on a reliable cloud host. I did not lock us into AWS, GCP or Azure, so recommend the platform that best fits the stack you build. • Hand over deployment scripts (Docke...

Python AI CRM Automation MVP — API Integration & AI Workflow I am building an AI-powered CRM automation system for a business and are looking for a strong Python developer to help develop the initial technical MVP. The system will connect a CRM/API with a Python backend and an AI layer to automate selected customer and lead-management workflows. This is intended to become a longer-term project, but we want to begin with a focused technical milestone before expanding the scope. The proper developer will help with: * Python backend development * CRM API integration * REST API development * Database design and queries * CRM data retrieval and updating * AI/LLM API integration * Structured data processing * Automation workflow implementation * Error handling and logging * Basic a...

Hi, I can build this as a compact, reliable web application focused specifically on the business workflow you want to automate, rather than overengineering it into a large platform. My preferred stack would be Python with FastAPI/Django, PostgreSQL where needed, and a lightweight browser-based frontend, with Git-based source delivery and clear deployment documentation. I have built and deployed multiple backend/API projects involving automation, background processing, databases, authentication, testing, and deployment. In particular, my AI Agent API handles automated workflows using Python, APIs, PostgreSQL, Redis, and Celery, while my SaaS and marketplace APIs demonstrate experience building maintainable web systems. I can provide: - Complete source code in Git - Working web applicati...

Senior AI/ML + Distributed Systems Engineer Required (Enterprise Build – $45,000 Fixed Price) Project: AI Financial Intelligence & Risk Monitoring Platform We are hiring a highly experienced engineer or engineering team to architect, build, deploy, and operationalize a production-grade AI Financial Intelligence & Risk Monitoring Platform. This is not a prototype. This is not a simulation. This must be a fully scalable, real-time, enterprise-grade system capable of operating under production conditions. ⸻ Project Overview The platform must: * Process high-volume financial data streams in real time * Detect anomalies using AI-driven models (not rule-based systems) * Generate actionable risk intelligence * Operate under strict performance, latency, and scalability benchm...

I have an internal dashboard that uses AI to generate automatic email replies. It works, but it’s starting to fall behind our needs. The main goal is to boost the accuracy of each suggested response while making the interface feel smoother for everyday users. Accuracy updates • Refine keyword-matching so the system chooses the right intent even in edge-case phrasing. • Incorporate stronger natural-language-processing techniques to handle varied sentence structures and tone. • Refresh or retrain the underlying data models; I’ll provide sample email logs for you to fine-tune on. Interface refinement Right now the layout is functional but clunky. I want the overall user experience to feel intuitive—fewer clicks from draft to send, clearer confidenc...

Senior Android VPN Developer Needed - Production VPN Experience Required We are looking for an experienced individual developer to build and launch a consumer Android VPN app. A reference UI image will be provided. The UI is relatively simple. VPN speed, reliability, network handling, and infrastructure are the main priorities. Requirements: - Native Android development with Kotlin - Android VpnService experience - WireGuard, OpenVPN, IKEv2, or similar VPN protocol experience - One-tap connect and disconnect - Automatic and manual VPN server selection - Fast and stable VPN connections - Automatic reconnect and server failover - Wi-Fi and mobile network switching support - DNS and IPv6 leak prevention - VPN server and backend integration - Server health and load monitoring - AdMob inte...

I need a solid backend written in Python that powers one-on-one messaging for an existing mobile chat application. The core tasks are to expose clean REST and WebSocket endpoints, handle real-time delivery, persist messages reliably in PostgreSQL, and keep latency low under moderate load. Authentication is already in place; your job starts at the moment the client is authorised. From there the service must: • accept text, emoji, and small attachment payloads • write each message atomically to Postgres, marking it delivered and later read • push live updates back to the correct recipient through WebSockets • expose a simple status route for health checks and basic metrics Unit tests that cover the message flow, delivery confirmations, and failure scenarios ...