Senior Python Developer with React

6 days ago

Bengaluru, Karnataka, India Skills Agency Full time ₹ 8,00,000 - ₹ 16,00,000 per year

Role Overview

As a
Full Python Developer
, you will be responsible for building the end-to-end product—from backend APIs to a clean, responsive frontend. You'll take full ownership of the development process, ensuring quality, scalability, and performance.

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.

Required Experience:

  • 4–6 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.

Required Technical Skills

Backend (FastAPI & Python 3.11+):

  • Expertise in asynchronous programming (asyncio), retry/backoff strategies with jitter, and timeout management.
  • Experience integrating OpenAI SDK, handling structured outputs, and managing token usage (tiktoken).
  • Strong understanding of dependency management, concurrency, and parallel execution.

Frontend (React + Vite + Tailwind):

  • Proficiency in modern React (v18), WebSockets, and responsive UI implementation.
  • Ability to build clean UIs from wireframes without complex design dependency.

Infra & Database:

  • Hands-on experience deploying to
    Railway
    or similar environments.
  • Knowledge of structured logging, secrets management, and Twelve-Factor configuration.
  • Familiarity with
    PostgreSQL
    , including query optimization and schema design.

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