Senior LangChain Engineer - Remote AI/LLM Apps

Epsilon ASI; Chicago (IL); On-site; USD 120,000 - 160,000; Full time

Job summary

Epsilon ASI is seeking a mid-to-senior LangChain Engineer to join our AI engineering team building production-grade applications powered by LLMs. You will design, develop, and optimize AI-powered software and agentic workflows, collaborating with engineers and stakeholders to translate requirements into scalable solutions.

The ideal candidate has strong Python experience, hands-on LangChain or similar frameworks, and deployment experience in a major cloud environment.

Qualifications

• Strong Python experience and hands-on LangChain or equivalent frameworks.
• Experience deploying applications in a major cloud environment.
• Proven ability to design and build production-grade AI/LLM applications.
• Ability to work independently in a remote setup while collaborating with distributed teams.
• Experience with prompt engineering, RAG, tool calling, and AI agents.

Responsibilities

• Design and develop production-grade AI/LLM applications using LangChain and related frameworks
• Build and integrate LLM-powered workflows, agents, and applications
• Develop scalable backend services and APIs using Python
• Integrate LLMs with external data sources, APIs, tools, and enterprise systems
• Develop solutions involving prompt engineering, retrieval-augmented generation (RAG), tool calling, and AI agents
• Deploy and maintain AI applications within a major cloud environment
• Collaborate with engineers, product stakeholders, and clients to translate business requirements into technical solutions
• Evaluate emerging AI/LLM technologies and identify opportunities to improve existing solutions
• Write clean, maintainable, well-tested code suitable for production environments
• Troubleshoot, optimize, and improve the performance, reliability, and scalability of AI applications

Skills

Python

LangChain

Software engineering

Remote collaboration

Education

Bachelor's degree not strictly required

Master's or PhD in AI/CS encouraged

Tools

Docker

Kubernetes

Cloud platforms (AWS/GCP/Azure)

Job description

Epsilon ASI is seeking a mid-to-senior LangChain Engineer to join our AI engineering team building production-grade applications powered by LLMs. You will design, develop, and optimize AI-powered software and agentic workflows, collaborating with engineers and stakeholders to translate requirements into scalable solutions.

The ideal candidate has strong Python experience, hands-on LangChain or similar frameworks, and deployment experience in a major cloud environment.