*Location:* Delhi (Onsite *at least 3 days/week*) *Experience:* 2–3+ years *About the Role* We are building an AI-first SaaS product that combines modern web apps with Retrieval-Augmented Generation (RAG) and agentic workflows. You will ship end‑to‑end features across a React front end and Node.js/Python back end, integrate vector databases, and help productionize LLM-driven experiences that are fast, reliable, and secure. *What You’ll Do* * Build rich, responsive UIs in *React* (TypeScript preferred) with clean component architecture, state management, and accessible design. * Design, build, and document REST/GraphQL APIs using *Node.js* (Express/Nest) and *Python* (FastAPI/Flask) * Implement *RAG* pipelines: chunking, embeddings, indexing, and retrieval using *vector databases* (e.g., pgvector/Postgres, Pinecone, Weaviate, Milvus, Qdrant) * Contribute to *agentic workflows* (LangGraph/LangChain/LlamaIndex) for autonomous or tool‑using task flows with evals and guardrails. * Design *event‑driven* components with *Kafka/RabbitMQ/SQS* * Stand up *observability* (logs, metrics, traces) and performance budgets; drive profiling and capacity planning. *Key Skill-Set* * *Front End:* React, TypeScript, Next.js/Vite, Tailwind/MUI, React Query/SWR, form libs (React Hook Form/Zod) * *Back End:* Node.js (Express/Nest) and Python (FastAPI/Flask) as primary; exposure to *Go* or *Java (Spring Boot)* is a plus. * *Inter‑service APIs:* REST/GraphQL, *gRPC + Protobuf* for low‑latency internal calls; WebSockets/SSE for realtime features. * *Data & Infra:* Postgres (+ *pgvector*), Redis, object storage (S3‑compatible), CDN/edge caching; *message queues/streams* (Kafka/RabbitMQ/*AWS SQS/SNS*); *search* (Elasticsearch/*OpenSearch*) * *Vector DBs:* Pinecone / Weaviate / Milvus / Qdrant / *pgvector* (any one strongly preferred) * *AI/Agents:* LangChain, LangGraph, LlamaIndex; model gateways * *DevOps & Platform:* Docker; *Kubernetes (EKS/GKE/AKS) or ECS/Fargate*; API Gateway/ALB/Nginx; CI/CD (GitHub Actions/GitLab CI) Job Types: Contractual / Temporary, Freelance Contract length: 6 months Pay: ₹400,000.00 - ₹1,500,000.00 per year Benefits: * Flexible schedule * Paid sick time Work Location: In person
