Full Stack React Application Developer

Techcarrot; Chennai; On-site; INR 1,200,000 - 2,400,000; Full time

Job summary

Techcarrot in Chennai is seeking a highly skilled Full Stack React Application Developer to build production-grade, data-rich web apps, APIs, and dashboards. You will own the full lifecycle from designing component architectures to delivering robust backend services and data platform integrations.

This hands-on role demands deep React expertise, strong API development skills, and data fluency to collaborate with data engineers and business teams.

Qualifications

• 5-7 years of professional full stack development experience in a product engineering environment.
• Expert-level React.js with 4+ years, including hooks, context, suspense, server components and performance patterns.
• Strong TypeScript proficiency and type-safe component development.
• Experience building REST APIs with Node.js (Express/Fastify) or Python (FastAPI).
• Solid database skills: PostgreSQL/MySQL and MongoDB.
• Experience with cloud platforms: Azure or AWS; app hosting, serverless, storage, CDN.
• Docker containerisation and basic Kubernetes or cloud-managed container services.
• Familiar with Agile/Scrum and cross-functional teams.

Responsibilities

• Architect, build, and maintain complex React applications including dashboards and analytics.
• Develop responsive UIs optimized for tablet and desktop with pixel-perfect execution.
• Build rich data visualizations using D3.js, Recharts, Chart.js or custom SVG/Canvas.
• Implement advanced state management using Redux Toolkit, Zustand, React Query, or Context API.
• Create reusable component libraries with design system integration (Tailwind CSS, Styled Components, or CSS Modules).
• Design and build RESTful APIs and GraphQL where appropriate.
• Ensure secure API access with authentication and authorization (OAuth 2.0, JWT, RBAC).
• Set up CI/CD pipelines and containerize with Docker; deploy to Kubernetes or cloud services.
• Write tests using Jest and React Testing Library; perform E2E testing with Cypress.
• Collaborate with data engineers to integrate data platforms and optimize data delivery.

Skills

React.js

TypeScript

REST APIs

PostgreSQL

MongoDB

Docker

Git

Azure/AWS Cloud

Security best practices

Agile/Scrum

Education

Bachelor's degree in Computer Science, Information Technology, or related field

Tools

Next.js

GraphQL

D3.js

Tailwind CSS

Styled Components

OpenAPI/Swagger

Job description

Job Description:

We are looking for a highly skilled Full Stack React Application Developer to build production-grade, data-rich web applications, APIs, and interactive dashboards. You will own the full application lifecycle from designing component architectures and building performant React frontends to creating robust backend APIs and integrating with data platforms.

This is a hands-on engineering role where you will build applications used by senior leadership, operations teams, and business users. The ideal candidate combines deep React expertise with strong API development skills and enough data fluency to work effectively with data engineering teams.

React Frontend Development (Primary Focus)

• Architect, build, and maintain complex React applications - dashboards, analytics platforms, internal tools, and customer-facing products
• Develop responsive, mobile-first UIs optimized for tablet (iPad) and desktop with pixel-perfect execution
• Build rich data visualizations using D3.js, Recharts, Chart.js, or custom SVG/Canvas components
• Implement advanced state management patterns using Redux Toolkit, Zustand, React Query, or Context API
• Create reusable, well-documented component libraries with design system integration (Tailwind CSS, Styled Components, or CSS Modules)
• Optimise frontend performance: code splitting, lazy loading, memoisation, virtual scrolling, bundle analysis
• Write comprehensive tests using Jest, React Testing Library, and Cypress for E2E testing
• Implement real-time features using WebSockets, Server-Sent Events, or polling strategies

API Design & Backend Development

• Design and build RESTful APIs using Node.js (Express/Fastify) or Python (FastAPI/Flask) following OpenAPI specifications
• Develop GraphQL APIs where appropriate for complex data querying needs
• Implement authentication and authorisation (OAuth 2.0, JWT, RBAC) for secure API access
• Build middleware for logging, rate limiting, caching, error handling, and request validation
• Design database schemas and write efficient queries (PostgreSQL, MongoDB, or similar)
• Implement API versioning, pagination, filtering, and search capabilities
• Build and maintain microservices or serverless functions (Azure Functions / AWS Lambda)
• Create API documentation using Swagger/OpenAPI and maintain developer-facing docs

Integration & Data Layer

• Integrate frontend applications with data platforms (Databricks, data warehouses, data lakes) through API layers
• Build data ingestion endpoints that accept, validate, transform, and store incoming data
• Work with data engineers to consume curated datasets and serve them through optimised APIs
• Implement caching strategies (Redis, CDN, browser cache) for high-performance data delivery
• Connect to third-party services and APIs (payment gateways, CRM, loyalty platforms, analytics tools)

AI / LLM Integration

• Build conversational AI interfaces (chatbots, knowledge agents) using LLM APIs (OpenAI, Anthropic, Azure OpenAI)
• Implement RAG (Retrieval-Augmented Generation) patterns for document Q&A and contextual search
• Create prompt engineering frameworks and manage AI response streaming in React UIs

DevOps & Delivery

• Set up and maintain CI/CD pipelines (GitHub Actions, Azure DevOps, GitLab CI)
• Containerize applications with Docker and deploy to Kubernetes or cloud-managed services
• Implement monitoring, alerting, and observability (Datadog, New Relic, or Application Insights)
• Conduct code reviews, mentor junior developers, and drive engineering best practices

Requirements

Must-Have Skills

• 5-7 years of professional full stack development experience in a product engineering environment
• Expert-level React.js (4+ years): hooks, context, suspense, server components, performance patterns
• Strong TypeScript proficiency - type-safe component development, generics, utility types
• Production experience building and consuming REST APIs (Node.js with Express/Fastify or Python with FastAPI)
• Solid database skills: PostgreSQL or MySQL (schema design, indexing, query optimisation) and/or MongoDB
• Experience with modern CSS: Tailwind CSS, CSS Modules, or Styled Components for scalable styling
• Proficiency with Git, branching strategies, PR workflows, and collaborative development
• Experience with cloud platforms: Azure (preferred) or AWS - app hosting, serverless, storage, CDN
• Strong understanding of web security: CORS, XSS, CSRF, CSP, authentication flows
• Experience with Docker containerisation and basic Kubernetes or cloud-managed container services
• Familiarity with Agile/Scrum and working in cross-functional, distributed teams

Good-to-Have Skills

• Experience with Next.js (App Router, SSR, ISR, API routes) or Remix
• GraphQL development experience (Apollo Server/Client or similar)
• Data visualisation expertise: D3.js, Recharts, Plotly, custom charting
• Experience integrating with LLM/AI APIs and building AI-powered features
• Knowledge of Databricks, Apache Spark, or data lake/warehouse concepts
• Experience with real-time systems: WebSockets, Kafka consumers, event-driven architecture
• Familiarity with design tools (Figma) and design-to-code workflows
• Understanding of retail / e-commerce domain (POS, loyalty, customer analytics)
• Experience with Storybook for component documentation and visual testing
• Knowledge of accessibility standards (WCAG) and internationalisation (i18n)

Education

• Bachelor's or Master's degree in Computer Science, Information Technology, or related field
• Relevant certifications are a plus: AWS/Azure Developer, Meta React Certification, or similar