Fullstack Developer

Job Description
Senior Backend / Full Stack Engineer Node.js (with React.js)
Backend-focused (~70%) with React.js frontend (~30%) TypeScript
Experience: 38 years
Employment Type: Full-time
Work Mode: Work From Office (WFO) only 9:30 AM to 6:30 PM, Monday to Friday
Location: Client location, Sector 62, Noida
Reports To: Engineering Lead
Role Overview
We are looking for a hands-on Senior Backend Engineer (with full-stack ability) who is a strong thinker and independent problem-solver. The role is backend-heavy roughly 70% backend in Node.js (TypeScript) and about 30% frontend in React.js (TypeScript). You will design APIs and data models, build integrations, and take real ownership: given just a feature idea even without a detailed BRD, PRD, or Figma design you should be able to do the R&D, define the requirements and approach yourself, and build it end to end. We want someone with an edge who takes initiative, fills in the gaps, digs into unknowns, and ships.
Primary Focus Areas
Backend (Node.js): (~70%) Design and build backend services and APIs in Node.js with TypeScript (Express/NestJS) REST APIs, data modeling in PostgreSQL via an ORM, Redis caching, third-party integrations, and security.
Frontend (React.js): (~30%) Build responsive front-ends in React.js (TypeScript) components, state management, hooks, and API integration; turn a Figma design (or just a rough idea) into working UI.
Key Responsibilities
Backend Development: Develop and maintain Node.js (TypeScript) services and REST APIs with clean, testable, well-structured code.
Database & ORM: Design and optimize PostgreSQL schemas and work through an ORM (Sequelize or Prisma) migrations, relations, indexing, and transactions; write raw SQL when needed.
¢ Integrations: Build integrations with third-party services and APIs (payments, auth providers, messaging, internal systems) reliably and securely.
¢ Security & Auth: Own application security authentication/authorization with Keycloak (JWT/OAuth2/OIDC), input validation, secrets handling, and secure coding practices.
¢ Observability & Tracing: Instrument services with observability and distributed tracing (OpenTelemetry with a tool like Jaeger / Grafana Tempo / SigNoz) to debug and monitor across services.
¢ R&D & Ownership: Take ownership end to end: from just a feature idea without waiting for a detailed BRD, PRD, or Figma design do the R&D, define the requirements and approach yourself, and build/deliver it independently.
¢ Frontend Development: Build React.js UIs (~30% of the role): reusable components, state management, hooks, and API integration from a Figma design or, when there isn't one, from the idea itself.
¢ Caching & Performance: Use Redis for caching, sessions, or queues to improve performance and scalability.
¢ Testing & Quality: Write unit and integration tests; participate in code reviews and maintain code quality.
¢ Collaboration & Mentoring: Collaborate with product, design, and QA; guide and mentor junior engineers.
Required Skills & Experience
¢ MUST HAVE: (Most important) A strong thinker and self-starter who can take just a feature idea without a detailed BRD, PRD, or Figma design do the R&D, define it themselves, and build it independently with an ownership mindset and an edge.
¢ 38 years of hands-on backend/full-stack development experience in production environments.
¢ Strong Node.js with TypeScript building REST APIs and backend services (Express or NestJS). This is the core of the role.
¢ Solid PostgreSQL / SQL and hands-on experience with an ORM Sequelize or Prisma schema design, joins, indexing, transactions, and query optimization.
¢ Experience building third-party integrations and secure APIs, with authentication/authorization using Keycloak (JWT/OAuth2/OIDC).
¢ Working React.js with TypeScript (~30% of the role) hooks, components, state management, and building UI from a Figma design or just an idea.
¢ Experience with Redis (caching/sessions/queues) or a similar in-memory store.
¢ Familiarity with observability and distributed tracing (OpenTelemetry, Jaeger/Tempo/SigNoz, or similar).
¢ Strong JavaScript/TypeScript fundamentals async/await, promises, and the Node.js event loop.
Good to Have
¢ Delivery & Ops: Git workflows, CI/CD pipelines (Jenkins/GitHub Actions), and containerized deployments (Docker); troubleshooting production issues and doing RCA.
¢ GraphQL (Apollo) for API design.
¢ NestJS and message queues (RabbitMQ/Kafka).
¢ Cloud deployment (GCP / AWS / Azure).
¢ Testing frameworks (Jest, React Testing Library, Cypress/Playwright).
¢ NoSQL (MongoDB), WebSockets, and microservices architecture.
¢ Frontend tooling (Vite/Webpack), Tailwind/Material UI, and performance profiling.
Education
Bachelor's degree in Computer Science, Engineering, or a related field or equivalent practical experience.
What We Offer
¢ Ownership of full-stack products end to end backend, frontend, and data.
¢ A modern TypeScript stack (Node.js, React, PostgreSQL, Redis) and room to improve architecture.
¢ A collaborative engineering culture and the chance to mentor a junior team.
¢ Competitive compensation, benefits, and continuous learning support.

To apply, share your resume along with a brief note on your Node.js + React.js projects (and a GitHub/portfolio link if available).