Full Stack Developer

16 hours ago

Delhi, Delhi, India Apollo Logic Full time ₹ 40,000 - ₹ 15,00,000 per year

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 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 (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, , Tailwind/MUI, React Query/SWR, form libs (React Hook Form/Zod)
  • Back End: (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, ₹1,500,000.00 per year

Benefits:

  • Flexible schedule
  • Paid sick time

Work Location: In person

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