Fullstack Engineer
We are looking for a highly skilled Full-Stack Engineerwho can build and maintainproduction-grade web applicationswhile also designing and implementingAI-powered agentsusing LangChain and LangGraph.
Responsibilities:
- Design, develop, and maintainfull-stack web applicationsusing
- React (frontend)andPython (backend)
- Build scalable, secure, and production-readyAPIs and backend services
- ImplementAI agents and intelligent workflowsusing
- LangChain and LangGraphIntegrateLLMsinto 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 LangGraphEnsure 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 developmentHands‐on experience with
- LangChainfor LLM application developmentHands‐on experience with
- LangGraphfor building and orchestrating AI agents
- Knowledge ofRAG architectures, embeddings, and vector databases
- Proficiency with
Git, version control, and collaborative development workflowsETHEREUM 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. ETHEREUM 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 ETHEREUM 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