Full Stack Developer - FastAPI/React.js

Description :

Key Responsibilities :

- Develop test and deploy the SaaS platform using FastAPI React 18 and PostgreSQL.

- Implement a split ? process ? reduce pipeline for breaking down user prompts and aggregating responses.

- Integrate OpenAI SDK (GPT-5 High) and manage structured outputs token/cost estimations and performance limits.

- Build a responsive and intuitive web interface using React + Vite + Tailwind including WebSockets for real-time updates.

- Implement file upload and parsing (PDF TXT DOCX CSV) with basic OCR support.

- Generate PDF and DOCX exports (using Puppeteer docx/docxtemplater).

- Deploy on Railway manage environment variables and implement monitoring via Sentry and Plausible.

- Maintain database structure and metrics logging in PostgreSQL.

- Collaborate closely with the technical lead to ensure code quality scalability and security.

Qualifications :

- 4 to 6 years of full-stack experience.

- At least one SaaS product built and delivered using FastAPI + React.

- Able to work independently with minimal supervision and deliver production-ready code quickly.

- Experience with OpenAI SDK or LLM orchestration.

Technical Requirements :

- Backend (FastAPI & Python 3.11+)

- Frontend (React + Vite + Tailwind)

- Infra & Database