Python Backend Engineer

Senior Python Backend EngineerSan Jose, California - ONSITEExperience: 9+ yearsNOTE: Must be local to California & should go for in-person interview W2 contract positionVisa accepted: USC/ GC/ TN/ GC EAD / OPT/ E3Required SkillsPython (3.10+)FastAPI, DjangoLangChain, LlamaIndex, Agentic AI FrameworksPostgreSQL, Redis, MongoDBVector Databases: Pinecone, WeaviateDocker, AWS/GCPOAuth2, JWT, OpenID ConnectAsync Task QueuesJob SummarySeeking an experienced Python Backend Engineer to design and develop scalable backend services and high-performance APIs for AI-powered applications. The role involves integrating AI agent workflows, building secure authentication systems, managing cloud-native infrastructure, and ensuring reliable service orchestration.Key ResponsibilitiesBuild and maintain scalable APIs using FastAPI/Django.Integrate AI agents and LLM-driven workflows.Implement secure authentication and authorization.Design backend routing, orchestration, and service communication.Develop and deploy containerized applications on AWS/GCP.Optimize performance, scalability, and reliability of backend systems.