2,252,003open jobs
144,719companies
257,737added this week
Browse all
Salary
≈ $122k – $271k per year (Estimated)
Location
Hybrid (Chicago, United States)
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 13, 2026. First seen by Alion on Sep 2, 2026.

Overview
Company
Impact
Profile match
Epsilon works with engineering and platform leaders responsible for running reliable systems while modernizing technology at scale.We help organizations reduce cloud waste, modernize platforms, and put AI into production safely and pragmatically, with clear ownership and measurable outcomes.Our focus is execution over experimentation. We partner closely with internal teams to deliver real results without introducing unnecessary risk.

LangChain Engineer - Mid to Senior Level

Remote | Contract-to-Hire

About the Role

We are looking for a mid-to-senior level LangChain Engineer to join a growing AI engineering team building production-grade applications powered by large language models (LLMs).

In this role, you’ll work closely with engineers and technical stakeholders to design, develop, and optimize AI-powered applications and agentic workflows. The ideal candidate has strong Python experience, hands-on experience with LangChain or similar LLM frameworks, and experience deploying applications in a major cloud environment.

This is an excellent opportunity for an engineer who enjoys working at the intersection of software engineering, AI, and emerging LLM technologies and wants to have a meaningful impact on a growing team.

What You'll Do

  • 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

What We're Looking For

  • Mid-to-senior level software engineering experience

  • Strong proficiency in Python

  • Hands-on experience with LangChain or comparable LLM/AI application frameworks

  • Experience working with at least one major cloud platform:

    • AWS

    • Google Cloud Platform (GCP)

    • Microsoft Azure

  • Strong understanding of software engineering fundamentals, APIs, and application development

  • Experience building or integrating LLM-powered applications

  • Ability to work independently in a remote environment while collaborating effectively with a distributed team

Nice to Have

  • Experience with LangGraph

  • Experience building AI agents or agentic workflows

  • Experience with RAG, vector databases, embeddings, and semantic search

  • Familiarity with OpenAI, Anthropic, Gemini, or other foundation models

  • Experience with Docker and/or Kubernetes

  • Experience with CI/CD and production cloud deployments

  • TypeScript experience

  • Experience working in a consulting or client-facing environment

Education

A Bachelor's degree is not required if the candidate has strong relevant experience. Master's or PhD graduates with relevant hands-on experience in AI, machine learning, computer science, or a related field are encouraged to apply.

This role is not intended for candidates coming directly from an undergraduate program without professional or substantial project experience.

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
2,252,003 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

AI/ML
Remote, many countries
Similar stack
Same company
Chicago
$215k – $250k per year · In office · Full-Time · 5+ years exp · PhD · New York
Python
AI/ML
Model Context Protocol
AI Agents
RAG
DevOps
GCP
Azure
AWS
Apply
$215k – $250k per year · In office · Full-Time · 5+ years exp · PhD · San Francisco
Python
AI/ML
Model Context Protocol
AI Agents
RAG
DevOps
GCP
Azure
AWS
Apply
$110k – $170k per year · In office · Full-Time · 3+ years exp · Bachelor's Degree · New York
Python
SQL
AI/ML
Fine-tuning
Prompt Engineering
AI Agents
Agentic Workflows
DevOps
Terraform
CI/CD
Git
Docker
Apply
$80k – $140k per year · In office · Full-Time · 1+ year exp · Bachelor's Degree · New York
Python
SQL
AI/ML
Fine-tuning
Prompt Engineering
AI Agents
Agentic Workflows
DevOps
Terraform
CI/CD
Git
Docker
Apply
$130k – $200k per year · In office · Full-Time · 3+ years exp · PhD · New York
Python
SQL
AI/ML
AI Agents
Machine Learning
Apply
Remote (Europe) · Full-Time · 5+ years exp
Python
TypeScript
SQL
AI/ML
LangGraph
LangChain
Model Context Protocol
Prompt Engineering
AI Agents
LLM
RAG
Machine Learning
DevOps
Rest API
GCP
Azure
AWS
Apply
Remote (likely EAEU) · 4+ years exp · Moscow
Python
AI/ML
AI Agents
DevOps
Rest API
CI/CD
Git
Kubernetes
Apply
Remote (likely EAEU) · 3+ years exp · Moscow
Python
Java
TypeScript
AI/ML
Model Context Protocol
AI Agents
LLM
RAG
LLMOps
DevOps
CI/CD
Git
Docker
Gitflow
GitLab
Linux
Apply
Remote (EMEA, United States) · Full-Time · 5+ years exp
Python
TypeScript
Move
AI/ML
Claude
Claude Code
Model Context Protocol
Fine-tuning
Function Calling
AI Agents
Langfuse
LangSmith
LiteLLM
Portkey
LLM
Braintrust
OpenRouter
OpenAI
Anthropic
OpenAI Codex
OpenAI Agents SDK
LLM Guardrails
Agentic Workflows
DevOps
GitHub Actions
OpenTelemetry
Datadog
CI/CD
Grafana
GitHub
Cybersecurity
Okta
Least Privilege
Web3
Polygon
Management
Jira
n8n
Apply
$66k per year · Remote (Europe) · Contractor · 5+ years exp
SQL
C#
C#
.NET
AI/ML
Model Context Protocol
Prompt Engineering
Function Calling
AI Agents
LLM
RAG
OpenAI
Anthropic
Structured Outputs
Frontend
GraphQL
DevOps
Rest API
Apply
Project Manager 19 days ago
≈ $14k – $39k per year (Estimated) · In office · 7+ years exp · Bengaluru · Gurgaon · Pune
Python
SQL
DevOps
GCP
Azure
AWS
Analytics
Tableau
Power BI
Management
Confluence
Jira
Agile
Scrum
Apply
Business Analyst 19 days ago
≈ $8k – $18k per year (Estimated) · In office · 2+ years exp · Noida
Python
SQL
Databases
MySQL
PostgreSQL
Snowflake
Google BigQuery
DevOps
GCP
Azure
AWS
AWS Lambda
Amazon S3
Apply
≈ $117k – $292k per year (Estimated) · In office · Full-Time · 3+ years exp · Master's Degree · Jerusalem
Python
AI/ML
Fine-tuning
Multimodal AI
Computer Vision
PyTorch
Machine Learning
Life Sciences
Immunohistochemistry
Apply
≈ $120k – $299k per year (Estimated) · In office · Full-Time · 5+ years exp · Master's Degree · Jerusalem
Python
AI/ML
Fine-tuning
JAX
Multimodal AI
PyTorch
Machine Learning
Apply
≈ $117k – $292k per year (Estimated) · In office · Full-Time · 3+ years exp · Master's Degree · Jerusalem
Python
AI/ML
PyTorch
Machine Learning
Apply
≈ $130k – $250k per year (Estimated) · Hybrid · Full-Time · Master's Degree · Denver
Python
TypeScript
AI/ML
LangGraph
LangChain
Embeddings
Prompt Engineering
Function Calling
AI Agents
Gemini
LLM
RAG
OpenAI
Anthropic
Semantic Search
Agentic Workflows
Machine Learning
DevOps
GCP
Azure
CI/CD
AWS
Docker
Kubernetes
Apply
≈ $153k – $289k per year (Estimated) · Hybrid · Full-Time · Master's Degree · United States
Python
TypeScript
AI/ML
LangGraph
LangChain
Embeddings
Prompt Engineering
Function Calling
AI Agents
Gemini
LLM
RAG
OpenAI
Anthropic
Semantic Search
Agentic Workflows
Machine Learning
DevOps
GCP
Azure
CI/CD
AWS
Docker
Kubernetes
Apply
≈ $112k – $213k per year (Estimated) · Hybrid · Full-Time · 3+ years exp · Denver
Python
DevOps
Terraform
GitHub Actions
CI/CD
AWS
Kubernetes
Platform Engineering
Cybersecurity
SOC 2
FedRAMP
Apply
≈ $106k – $241k per year (Estimated) · Hybrid · Full-Time · Denver
Go
Rust
DevOps
Terraform
GitHub Actions
CI/CD
AWS
Kubernetes
Cybersecurity
FedRAMP
Apply
≈ $61k – $159k per year (Estimated) · Hybrid · Full-Time · 1+ year exp · Denver
DevOps
GCP
Azure
AWS
Cybersecurity
SOC 2
FedRAMP
Defense
CMMC
Apply
$96k – $157k per year · In office · Full-Time · 3+ years exp · PhD · Atlanta · Austin · Chicago · Minneapolis · Charlotte
Python
TypeScript
PowerShell
C#
AI/ML
MLFlow
LLMOps
Machine Learning
DevOps
Terraform
Azure DevOps
GitHub Actions
OpenTelemetry
Azure
CI/CD
Git
Docker
Kubernetes
SRE
Platform Engineering
Bicep
Azure AKS
AIOps
Apply
$114k – $130k per year · Hybrid · Full-Time · 8+ years exp · Chicago
AI/ML
Copilot
Claude
Apply
$142k – $203k per year · In office · Full-Time · 10+ years exp · Bachelor's Degree · Washington · Chicago · Denver
DevOps
Windows
Cybersecurity
PCI DSS
HIPAA
Apply
≈ $43k – $95k per year (Estimated) · Hybrid · 3+ years exp · Bachelor's Degree · Chicago
Apply
In office · High School Diploma · Chicago
Apply
See all jobs
This is one of many
2,252,003 more open roles from verified company boards, updated every day.