Fullstack Engineer

Robotics Technologies LLC; Sunnyvale (CA); On-site; USD 100,000 - 130,000; Full time

Job summary

A technology company is seeking a highly skilled Full-Stack Engineer to build and maintain production-grade web applications while designing AI-powered agents using LangChain and LangGraph. The role involves developing secure APIs, implementing intelligent workflows, and ensuring quality through testing and code reviews. Candidates should have strong experience in React and Python, solid full-stack architecture knowledge, and hands-on experience with LangChain and LangGraph. This role offers an inclusive work environment with equal opportunity for all.

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.

Responsibilities

• Design, develop, and maintain full-stack web applications using React and Python.
• Build scalable, secure, and production-ready APIs and backend services.
• Implement AI agents and intelligent workflows using LangChain and LangGraph.

Skills

React

Python

LangChain

LangGraph

RAG architectures

Git

Job description

We are looking for a highly skilledFull-Stack Engineerwho can build and maintainproduction-grade web applicationswhile also designing and implementingAI-powered agentsusingLangChain and LangGraph.

Responsibilities

• Design, develop, and maintainfull-stack web applicationsusingReact (frontend)andPython (backend)
• Build scalable, secure, and production-readyAPIs and backend services
• ImplementAI agents and intelligent workflowsusingLangChain and LangGraph
• IntegrateLLMsinto applications, including tool-calling, memory, and multi-step reasoning
• Design and implementRAG-based solutionsusing embeddings and vector databases
• Orchestrate agent state, control flow, and execution using LangGraph
• Ensure code quality throughtesting, code reviews, and best engineering practices

Required Skills

• Strong experience inReact(modern hooks, component design, state management) andPython(FastAPI / Flask / Django)
• Solid understanding offull-stack architecture, REST APIs, and backend development
• Hands‑on experience withLangChainfor LLM application development
• Hands‑on experience withLangGraphfor building and orchestrating AI agents
• Knowledge ofRAG architectures, embeddings, and vector databases
• Proficiency withGit, version control, and collaborative development workflows

ROBOTICS TECHNOLOGIES LLC is an equal opportunity employer inclusive of female, minority, disability and veterans, (M/F/D/V). Hiring, promotion, transfer, compensation, benefits, discipline, termination and all other employment decisions are made without regard to race, color, religion, sex, sexual orientation, gender identity, age, disability, national origin, citizenship/immigration status, veteran status or any other protected status. ROBOTICS TECHNOLOGIES LLC will not make any posting or employment decision that does not comply with applicable laws relating to labor and employment, equal opportunity, employment eligibility requirements or related matters. Nor will ROBOTICS TECHNOLOGIES LLC require in a posting or otherwise U.S. citizenship or lawful permanent residency in the U.S. as a condition of employment except as necessary to comply with law, regulation, executive order, or federal, state, or local government contract