AI Full Stack Development

Senior Full Stack Engineer Location: Remote, India Employment Type: Freelancer Experience: 5–8+ Years About the Role We are building a next-generation AI-powered HR-Tech platform that will transform recruitment, talent acquisition, candidate management, and online technical assessments. We are looking for a passionate Full Stack Engineer who enjoys building scalable SaaS applications using modern technologies and cloud-native architecture. You will work alongside product, AI, UI/UX, and DevOps teams to build secure, high-performance web and mobile solutions used by recruiters, enterprises, staffing firms, and job seekers. Responsibilities Design and develop scalable SaaS applications using modern full-stack technologies. Build responsive web applications and reusable UI components. Develop secure backend APIs and business logic. Design relational database architecture and optimize queries. Integrate AI services and third-party APIs. Develop authentication and authorization systems. Build search and recommendation capabilities. Develop asynchronous background jobs and event-driven workflows. Implement CI/CD pipelines and deployment automation. Optimize application performance, scalability, and security. Participate in sprint planning, code reviews, and Agile ceremonies. Collaborate with UI/UX designers and Product Managers. Write unit, integration, and end-to-end tests. Troubleshoot production issues and improve system reliability. Required Technical Skills Frontend React.js Next.js TypeScript JavaScript (ES6+) Tailwind CSS HTML5 CSS3 Responsive Web Design REST API Integration shadcn/ui Component-based architecture Backend Next.js Route Handlers Server Actions Node.js TypeScript REST APIs Webhooks Serverless Architecture Background Jobs API Security Database PostgreSQL Drizzle ORM Database Design Query Optimization Data Modeling Search & AI Experience working with one or more of: OpenAI APIs Vector Search pgvector Semantic Search Embeddings AI Prompt Engineering AI-powered Data Processing Retrieval-Augmented Generation (RAG) Authentication & Security JWT Authentication OAuth 2.0 Google OAuth LinkedIn OAuth Role-Based Access Control (RBAC) Secure Password Hashing Refresh Tokens HttpOnly Cookies API Security Best Practices Cloud & DevOps Vercel GitHub Actions CI/CD Pipelines Docker (Preferred) Redis Upstash Cloud Storage (Google Cloud Storage / AWS S3) Environment Management Testing Vitest Jest Playwright API Testing Unit Testing Integration Testing End-to-End Testing Mobile (Preferred) Experience with: React Native Expo Expo Router EAS Build Monitoring & Performance OpenTelemetry Sentry SigNoz Application Monitoring Performance Optimization Logging & Error Tracking Development Practices Git Agile/Scrum Sprint Planning Code Reviews Technical Documentation Design Patterns Clean Architecture SOLID Principles