Full Stack Developer

Key responsibilities

- Build and maintain a cross-platform desktop application with React.js, TailwindCSS, and Electron (Chromium shell)

- Develop REST/GraphQL APIs in Node.js (Express) or FastAPI and integrate them with the frontend via IPC and HTTP

- Connect AI services (OpenAI GPT-4, LangChain) for features such as summarization, planning, and PDF chat

- Implement payments and subscription logic with Razorpay and/or Stripe, including micro-transactions and webhook handling

- Design and optimize data models in Firebase/Firestore or PostgreSQL for user auth, short-/long-term memory, and analytics

- Write unit, integration, and end-to-end tests with Jest and Cypress; enforce code quality with ESLint and Prettier

- Package and distribute the Electron app for Windows, macOS, and Linux using Electron Builder

- Participate in daily stand-ups, code reviews, and CI/CD workflows (GitHub Actions)

Must-have skills

- 3+ years professional JavaScript/TypeScript experience across both frontend and backend

- Production work with React.js, Electron (or other Chromium-based desktop frameworks), and TailwindCSS

- Strong Node.js/Express or Python/FastAPI knowledge, including API security and performance tuning

- Hands-on integration of third-party APIs (OpenAI, payment gateways such as Razorpay or Stripe)

- Solid understanding of relational or NoSQL databases (PostgreSQL, Firestore, or equivalent)

- Git, GitHub flow, and automated testing practices

Nice-to-have

- Playwright or Puppeteer for browser automation

- React DnD, pdf.js, or advanced accessibility skills

- Exposure to LangChain, LangGraph, or other multi-agent orchestration frameworks

- Prior experience with PCI-DSS or RBI compliance in payment systems