Fullstack Engineer
Job Overview
Job ID: J52374
Job Title: Fullstack Engineer
Location: Sunnyvale, CA
Duration: 12 Months + Extension
Hourly Rate: Depending on Experience (DOE)
Work Authorization: US Citizen, Green Card, OPT-EAD, CPT, H-1B, H4-EAD, L2-EAD, GC-EAD
Client: To Be Discussed Later
Employment Type: W-2, 1099, C2C
Responsibilities
- Design, develop, and maintain full-stack web applications using React (frontend) and Python (backend)
- Build scalable, secure, and production-ready APIs and backend services
- Implement AI agents and intelligent workflows using LangChain and LangGraph
- Integrate LLMs into applications, including tool-calling, memory, and multi-step reasoning
- Design and implement RAG-based solutions using embeddings and vector databases
- Orchestrate agent state, control flow, and execution using LangGraph
- Ensure code quality through testing, code reviews, and best engineering practices
- Strong experience in React (modern hooks, component design, state management) and Python (FastAPI / Flask / Django)
- Solid understanding of full-stack architecture, REST APIs, and backend development
- Hands-on experience with LangChain for LLM application development
- Hands-on experience with LangGraph for building and orchestrating AI agents
- Experience integrating LLM APIs (OpenAI, Anthropic, etc.)
- Knowledge of RAG architectures, embeddings, and vector databases
- Proficiency with Git, version control, and collaborative development workflows
Qualifications
Strong experience in React (modern hooks, component design, state management) and Python (FastAPI / Flask / Django)
Solid understanding of full-stack architecture, REST APIs, and backend development
Hands-on experience with LangChain for LLM application development
Hands-on experience with LangGraph for building and orchestrating AI agents
Experience integrating LLM APIs (OpenAI, Anthropic, etc.)
Knowledge of RAG architectures, embeddings, and vector databases
Proficiency with Git, version control, and collaborative development workflows