Demo

Python OSS Engineer

LangChain
Cambridge, MA Full Time
POSTED ON 12/26/2025
AVAILABLE BEFORE 1/24/2026
About LangChain

At LangChain, our mission is to make intelligent agents ubiquitous. We provide the agent engineering platform and open source frameworks developers need to ship reliable agents fast.

Our open source frameworks, LangChain and LangGraph, see over 90 million downloads per month and help developers build agents with speed and granular control. LangSmith offers observability, evaluation, and deployment for rapid iteration, enabling teams to transform LLM systems into dependable production experiences.

LangChain is trusted by millions of developers worldwide and powers AI teams at companies like Replit, Clay, Cloudflare, Harvey, Rippling, Vanta, Workday, and more.

About The Role

In person 5 days/week in San Francisco, CA or Boston, MA (SF preferred)

We’re looking to add a core maintainer to the LangChain team. This person would be responsible for maintaining and improving the LangChain Python package.

  • Improving the core abstractions and runtime of the langchain and langgraph packages
  • Improving documentation
  • Answering user questions and resolving issues
  • Use langchain to build example applications

How To Be Successful In This Role

  • 5 years of software engineering or applied machine learning background
  • Have strong written and oral communication skills, with the ability to explain technical concepts clearly and concisely to both technical and non-technical stakeholders
  • Can thrive in a fast-moving environment. Views unstructured environments as an opportunity to figure out the most impactful work and define the future success of the company
  • Are ownership-minded. You excel at managing your work efficiently and effectively without the need for close supervision

Compensation & Benefits

  • We offer competitive compensation that includes base salary, meaningful equity, and benefits such as health and dental coverage, flexible vacation, a 401(k) plan, and life insurance. Actual compensation will vary based on role, level, and location. For team members in the EU and UK, we provide locally competitive benefits aligned with regional norms and regulations.
  • Annual salary range: $145,000-$195,000 USD

Salary : $145,000 - $195,000

If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Python OSS Engineer?

Sign up to receive alerts about other jobs on the Python OSS Engineer career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$117,024 - $149,811
Income Estimation: 
$137,568 - $176,908
Income Estimation: 
$70,239 - $89,209
Income Estimation: 
$88,984 - $115,784
Income Estimation: 
$92,017 - $124,111
Income Estimation: 
$90,707 - $120,959
Income Estimation: 
$91,486 - $118,193
Income Estimation: 
$88,984 - $115,784
Income Estimation: 
$111,369 - $141,168
Income Estimation: 
$117,871 - $153,580
Income Estimation: 
$109,939 - $144,341
Income Estimation: 
$114,500 - $144,633
Income Estimation: 
$150,756 - $194,140
Income Estimation: 
$126,569 - $164,899
Income Estimation: 
$208,447 - $279,762
Income Estimation: 
$153,752 - $200,235
Income Estimation: 
$111,369 - $141,168
Income Estimation: 
$131,745 - $167,716
Income Estimation: 
$144,503 - $184,592
Income Estimation: 
$102,541 - $137,871
Income Estimation: 
$153,752 - $200,235
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at LangChain

  • LangChain San Francisco, CA
  • About LangChain At LangChain, our mission is to make intelligent agents ubiquitous. We provide the agent engineering platform and open source frameworks de... more
  • 14 Days Ago

  • LangChain York, NY
  • About LangChain At LangChain, our mission is to make intelligent agents ubiquitous. We provide the agent engineering platform and open source frameworks de... more
  • 5 Days Ago

  • LangChain San Francisco, CA
  • About LangChain At LangChain, our mission is to make intelligent agents ubiquitous. We provide the agent engineering platform and open source frameworks de... more
  • 5 Days Ago

  • LangChain San Francisco, CA
  • About LangChain: At LangChain, our mission is to make intelligent agents ubiquitous. We provide the agent engineering platform and open source frameworks d... more
  • 6 Days Ago


Not the job you're looking for? Here are some other Python OSS Engineer jobs in the Cambridge, MA area that may be a better fit.

  • FasterOutcomes Boston, MA
  • About Faster Outcomes At Faster Outcomes, we're transforming the legal industry by making the legal journey a people-first experience. Our cutting-edge tec... more
  • 1 Month Ago

  • thrively Boston, MA
  • Staff Engineer: Our client is seeking a Staff Engineer to join their growing team in Boston. This is a unique opportunity to play a pivotal role in scaling... more
  • 12 Days Ago

AI Assistant is available now!

Feel free to start your new journey!