> Markdown version of [/jobs/ext/3700072-backend-developer-langchain-langgraph-remote](https://www.wearedevelopers.com/jobs/ext/3700072-backend-developer-langchain-langgraph-remote). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Backend Developer (LangChain / LangGraph) - Remote - **Company:** SCI S.A - **Location:** Spain (Remote available) - **Contract:** Permanent contract - **Skills:** LangGraph Framework, Artificial Intelligence, Information Technology Consulting, Software Architecture, Backend, Agentic-AI, Build Management, Information Technology - **Published:** October 12, 2026 - **Apply:** https://www.jobleads.com/es/job/backend-developer-langchain-langgraph-remote--spain--ec54364012718c679fa119159c9dd8da7 ## About the Role * Proven hands-on experience with LangChain and/or LangGraph * Experience working with Agentic AI frameworks * Strong background in backend architecture and system design * Passion for AI-driven solutions and continuous improvement ## Description Overview We are currently looking for an experienced Backend Developer with strong expertise in LangChain / LangGraph to join our client's international tech team. If you're passionate about AI agents and enjoy working on innovative backend architectures, this role is a great fit for you! Responsibilities * Design and build AI Agents using LangChain / LangGraph * Further development and optimization of existing backend functionalities * Implement new architectural specifications and ensure scalability * Start: ASAP * Location: 100% Remote Your profile * Proven hands-on experience with LangChain and/or LangGraph * Experience working with Agentic AI frameworks * Strong background in backend architecture and system design * Passion for AI-driven solutions and continuous improvement What we offer * Work on cutting-edge AI projects with a forward-thinking international team * 100% remote flexibility * Competitive compensation and long-term collaboration opportunities Seniority level * Not Applicable Employment type * Full-time Job function * Information Technology Industries * IT Services and IT Consulting