AI agent engineering platform
LangChain
Open source frameworks for building AI agents, and LangSmith, the platform companies use to test, deploy and monitor those agents in production.
- Based in San Francisco, New York and Boston
- 400 people
- Founded 2023
- 101 open roles
Jack’s take, why it stands out
“A lot of developers learned to build AI agents on LangChain’s open source, and now big companies run those agents on its platform. The team has grown from about 150 to about 400 people this year, and it’s hiring deployed engineers and account executives in London as well as the US.”
Jack’s take on LangChain
The questions candidates ask me about a company, answered for LangChain
Its COO says it has beaten its plan 11 quarters running
Open source downloads passed 100 million a month, up from 90 million in October 2025.
LangSmith’s monthly trace volume grew 12x in the year to October 2025.
Revenue was last reported at $12M to $16M a year in mid-2025, a range LangChain called low in October 2025. It hasn’t published a figure.
It wasn’t yet profitable when it raised its Series B in October 2025.
OpenAI and Anthropic are expanding their own tools for building agents, which compete with parts of LangChain’s.
No layoffs reported.
Valuation rose from $200M to $1.25B in 20 months
$200M
$1.25B
Feb 2024Oct 2025
Backed by
IVP
Sequoia
Benchmark
CapitalG
Sapphire Ventures
Databricks
IVPSequoiaBenchmarkCapitalGSapphire VenturesDatabricks$160M raised in announced rounds, from a $10M seed in 2023 to the $125M Series B led by IVP that set its last announced valuation.
ServiceNow, Workday, Cisco, Datadog and Databricks invested in the Series B, many of them already customers or partners.
The team grew from about 150 to about 400 people this year
20
~150
350
~400
Feb 2024Feb 2026Aug 2026Oct 2026
Headquartered in San Francisco, with offices in New York, Boston and Amsterdam. Its team for Europe, the Middle East and Africa is led from London, where it said in February it would open an office.
Key leaders
Previously
Harrison ChaseCofounder and CEO
Robust Intelligence
Ankush GolaCofounder and CTO
Unfold
Julia SchottensteinCOO, leads go-to-market and operations
dbt Labs
Alex LunevVP of engineering, joined Oct 2025
Cockroach Labs
Harrison ChaseCofounder and CEORobust IntelligenceAnkush GolaCofounder and CTOUnfoldJulia SchottensteinCOO, leads go-to-market and operationsdbt LabsAlex LunevVP of engineering, joined Oct 2025Cockroach LabsHarrison began LangChain as an open source side project in late 2022, and started the company with Ankush in early 2023. Matthew Pugh, VP of go-to-market for Europe, the Middle East and Africa since February, joined from Securiti AI.
A fast team with little bureaucracy
The pace. Fast. Its principles ask people to run toward problems and to work hard, sustainably. Plans are set each quarter and revisited every month.
Ownership. Little bureaucracy. Each person is expected to own their area and act without waiting for permission, and hot takes are welcome from anyone.
Where. Most open roles are in an office. About a third are remote.
Pay and time off. Equity for every role and flexible vacation. It tells candidates early where they’re tracking and talks pay before the offer stage.
In production at 5 of the 10 largest US companies
5 of the 10largest US companies
KlarnaIts support assistant for 85 million users cut query resolution time by 80%.
RipplingBuilt Rippling AI in about six months. More than a million people use it.
Orange BusinessRuns Live Intelligence, its AI platform for 120,000 Orange employees.More than 6,000 companies use LangSmith, and 35% of the Fortune 500 use LangChain.
What candidates tell Jack
“LangChain is a unicorn with real developer enthusiasm, and principles like ‘run to the roar’ and ‘maximum agency’ really resonate.”
Is there a role for you?
101 open roles, straight from LangChain’s careers page. Hiring in the US (79), the UK (14), Singapore (4) and 4 other places. Pick a place and an area for Jack’s read and the roles.
Jack’s read for engineering
18 open roles
- VP of engineering Alex Lunev joined in 2025 from Cockroach Labs, where he led the teams building CockroachDB.
- 1B+ events a day flow into LangSmith, its commercial platform.
- Engineers build the open source frameworks LangChain, LangGraph and Deep Agents as well as LangSmith.
Senior Backend Software Engineer, AI Observability & Evals Platform (NYC)New York, NY · posted November 2View role(opens on LangChain’s site)Software Engineering Manager, AI Observability & Evals Platform (New York, NY)New York, NY · posted October 20View role(opens on LangChain’s site)Software Engineering Manager, AI Observability & Evals Platform (Boston)Boston, MA · posted October 20View role(opens on LangChain’s site)FullStack Engineer, AI Observability & Evals Platform (LangSmith)San Francisco, CA · posted October 14View role(opens on LangChain’s site)Senior Fullstack Software Engineer, AI Observability & Evals Platform (NY)San Francisco, CA · posted October 8View role(opens on LangChain’s site)Analytics EngineerRemote - US · posted October 5View role(opens on LangChain’s site)Software Engineering Manager, Database (SmithDB)San Francisco, CA · posted October 5View role(opens on LangChain’s site)Senior Frontend Engineer, AI Observabilty PlatformBoston, MA · posted September 24View role(opens on LangChain’s site)
10 moreShow all
Senior Fullstack Engineer, AI Observability & Evals PlatformBoston, MA, New York, NY · posted September 12View role(opens on LangChain’s site)Senior Backend Software Engineer, AI Observability & Evals Platform (LangSmith)Boston, MA, New York, NY · posted September 12View role(opens on LangChain’s site)Developer ProductivitySan Francisco, CA, New York, NY · posted September 10View role(opens on LangChain’s site)Senior Frontend Platform Engineer, Design SystemsRemote - US, Boston, MA, New York, NY · posted August 22View role(opens on LangChain’s site)Security Engineer - Detection & ResponseSan Francisco, CA, New York, NY · posted August 17View role(opens on LangChain’s site)Senior Frontend Engineer, AI Observability & Evals PlatformRemote - US · posted August 13View role(opens on LangChain’s site)Frontend Engineer, AI Observability & Evals PlatformSan Francisco, CA, Boston, MA, New York, NY · posted August 12View role(opens on LangChain’s site)Senior Backend Software Engineer, AI Observability & Evals Platform (SF)San Francisco, CA, Boston, MA, New York, NY · posted January 8View role(opens on LangChain’s site)Senior Fullstack Engineer, AI Observability & Evals Platform (SF)San Francisco, CA · posted February 19View role(opens on LangChain’s site)Python OSS EngineerSan Francisco, CA, Boston, MA · posted February 10View role(opens on LangChain’s site)
Jack’s read for deployed engineering, services and support
29 open roles
- Deployed engineers build production agents alongside customers’ own engineers, from the first proof of concept to advice after launch.
- 5 of the Fortune 10 use LangSmith in production.
- London is its hub for Europe, with deployed engineering and professional services roles there.
Our hiring guides: pay, time to fill and who gets hired
Director, EMEA Professional ServicesLondon · posted November 2View role(opens on LangChain’s site)EMEA Technical Support EngineerLondon · posted October 29View role(opens on LangChain’s site)Deployed Engineer (Singapore) - APACRemote - Singapore · posted October 16View role(opens on LangChain’s site)Deployed Architect, Professional Services (Amsterdam)Amsterdam · posted October 10View role(opens on LangChain’s site)Deployed Architect, Professional Services (London)London · posted October 10View role(opens on LangChain’s site)Deployed Architect, Professional Services (APAC)Remote - Singapore · posted October 10View role(opens on LangChain’s site)Deployed Engineer, Professional Services (APAC)Remote - Singapore · posted October 10View role(opens on LangChain’s site)Senior Technical Support EngineerSan Francisco, CA, Chicago, IL, Austin, TX and 8 more · posted October 9View role(opens on LangChain’s site)
21 moreShow all
Deployed Engineer, Professional ServicesAtlanta, GA, Austin, TX, Dallas, TX and 7 more · posted October 9View role(opens on LangChain’s site)Deployed Engineer, Professional Services (San Francisco)San Francisco, CA · posted October 9View role(opens on LangChain’s site)Deployed Engineer, Professional Services (NYC)New York, NY · posted October 9View role(opens on LangChain’s site)Deployed Architect, Professional Services (NYC)New York, NY · posted October 9View role(opens on LangChain’s site)Deployed Architect, Professional Services (Austin)Austin, TX · posted October 9View role(opens on LangChain’s site)Deployed Architect, Professional Services (Dallas)Dallas, TX · posted October 9View role(opens on LangChain’s site)Deployed Architect, Professional Services (Remote)Los Angeles, CA, Salt Lake City, UT, Seattle, WA and 1 more · posted October 9View role(opens on LangChain’s site)Deployed Architect, Professional Services (San Francisco)San Francisco, CA · posted October 9View role(opens on LangChain’s site)Deployed Engineer (Federal)Washington DC · posted October 9View role(opens on LangChain’s site)Deployed Engineer (Boston)Boston, MA · posted October 9View role(opens on LangChain’s site)Deployed Engineer (NYC)New York, NY · posted October 9View role(opens on LangChain’s site)Deployed Engineer (Bay Area)San Francisco, CA · posted October 7View role(opens on LangChain’s site)Deployed Engineer (Early Career- SF)San Francisco, CA · posted October 7View role(opens on LangChain’s site)Deployed Engineer (Atlanta)Atlanta, GA · posted August 22View role(opens on LangChain’s site)Solutions Engineer (Chicago)Chicago, IL · posted August 18View role(opens on LangChain’s site)Deployed Engineer (Chicago)Chicago, IL · posted August 5View role(opens on LangChain’s site)Deployed Engineer (Seattle)Seattle, WA · posted June 4View role(opens on LangChain’s site)Sales Engineer (Bay Area)San Francisco, CA · posted May 14View role(opens on LangChain’s site)Deployed Engineer (Raleigh)Raleigh, NC · posted April 14View role(opens on LangChain’s site)Deployed Engineer (Charlotte)Charlotte, NC · posted April 14View role(opens on LangChain’s site)Deployed Engineer (UK)London · posted January 18View role(opens on LangChain’s site)
Jack’s read for sales, partnerships and revenue operations
42 open roles
- COO Julia Schottenstein leads go-to-market and operations. She joined in 2023, when LangChain was six months old.
- 35% of the Fortune 500 use LangChain.
- Its sales team for Europe works from four hubs: London, Amsterdam, Munich and Stockholm.
Our hiring guides: pay, time to fill and who gets hired
Sales Development Manager - CentralNew York, NY · posted November 5View role(opens on LangChain’s site)Vice President, EMEALondon · posted November 3View role(opens on LangChain’s site)Regional Vice President, Sales APACRemote - Australia, Remote - Singapore · posted November 3View role(opens on LangChain’s site)AWS Alliances LeadNew York, NY · posted November 2View role(opens on LangChain’s site)AWS Alliances LeadChicago, IL · posted November 2View role(opens on LangChain’s site)AWS Alliances LeadSan Francisco, CA · posted November 2View role(opens on LangChain’s site)Sales Development Representative (SF)San Francisco, CA · posted October 30View role(opens on LangChain’s site)Sales Development Representative (NY)New York, NY · posted October 19View role(opens on LangChain’s site)
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Sales Development Representative (London) - EMEALondon · posted October 16View role(opens on LangChain’s site)Order Management Operations & AutomationNew York, NY · posted October 15View role(opens on LangChain’s site)Order Management Operations & AutomationSan Francisco, CA · posted October 15View role(opens on LangChain’s site)Account Manager, Renewals & Expansion (West Coast)San Francisco, CA, Seattle, WA, San Diego, CA and 1 more · posted October 14View role(opens on LangChain’s site)Enterprise Account Executive - BeneluxAmsterdam · posted October 14View role(opens on LangChain’s site)Manager - Sales Development Representatives (SDR) (London) - EMEALondon · posted October 14View role(opens on LangChain’s site)Business Systems Analyst, GTM SystemsSan Francisco, CA · posted October 14View role(opens on LangChain’s site)EMEA Deal Strategy & Operations LeadLondon · posted October 10View role(opens on LangChain’s site)Enterprise Account Executive (UK)London · posted October 10View role(opens on LangChain’s site)Enterprise Account Executive - MunichGermany · posted October 10View role(opens on LangChain’s site)Enterprise Account Executive (Stockholm)Sweden · posted October 10View role(opens on LangChain’s site)Account Manager, Renewals & Expansion (East Coast)New York, NY, Atlanta, GA, Nashville, TN and 3 more · posted October 9View role(opens on LangChain’s site)Commercial Account Executive (SF)San Francisco, CA · posted October 9View role(opens on LangChain’s site)Commercial Account Executive (NYC)New York, NY · posted October 9View role(opens on LangChain’s site)Sales Development ManagerSan Francisco, CA, New York, NY · posted October 9View role(opens on LangChain’s site)Commercial Account Executive - Southern EMEALondon · posted September 23View role(opens on LangChain’s site)Enterprise Account Executive (AZ)Phoenix, AZ · posted September 23View role(opens on LangChain’s site)Account Executive (Mid Market- NYC)San Francisco, CA, New York, NY · posted September 9View role(opens on LangChain’s site)Commercial Account Executive (UK)London · posted September 4View role(opens on LangChain’s site)Enterprise Account Executive (Florida)Tampa, FL · posted September 4View role(opens on LangChain’s site)Enterprise Account Executive (Atlanta)Atlanta, GA · posted September 4View role(opens on LangChain’s site)Partner EngineerSan Francisco, CA · posted August 14View role(opens on LangChain’s site)Regional Director, Enterprise SalesNew York, NY · posted August 11View role(opens on LangChain’s site)Enterprise Account Executive (Colorado)Denver, CO · posted August 5View role(opens on LangChain’s site)Commercial Account Executive - Benelux & NordicsLondon · posted July 31View role(opens on LangChain’s site)Enterprise Account Executive (Houston)Houston, TX · posted July 30View role(opens on LangChain’s site)Enterprise Account Executive (Dallas)Dallas, TX · posted July 30View role(opens on LangChain’s site)Enterprise Account Executive (Ohio)Cincinnati, OH, Detroit, MI · posted July 30View role(opens on LangChain’s site)Enterprise Account Executive (Chicago)Chicago, IL · posted July 30View role(opens on LangChain’s site)Partner Alliance Lead - FederalWashington DC · posted June 1View role(opens on LangChain’s site)Enterprise Account Executive, South EMEA (UK)London · posted May 7View role(opens on LangChain’s site)Federal Account ExecutiveWashington DC · posted May 6View role(opens on LangChain’s site)Enterprise Account Executive (NYC)New York, NY · posted April 14View role(opens on LangChain’s site)Enterprise Account Executive (San Francisco Bay Area)San Francisco, CA · posted March 24View role(opens on LangChain’s site)
Jack’s read for marketing
5 open roles
- 90%+ of its marketing is organic, built on educational content for developers. It publishes on its blog almost every day.
- It runs Interrupt, its conference on agents, which came to New York in September and London in October.
Performance Marketing Manager, Paid Search & AI AdvertisingSan Francisco, CA · posted November 4View role(opens on LangChain’s site)Integrated Campaigns ManagerSan Francisco, CA · posted November 4View role(opens on LangChain’s site)Regional Demand Generation MarketerLondon · posted October 10View role(opens on LangChain’s site)Solutions Marketing ManagerSan Francisco, CA · posted August 18View role(opens on LangChain’s site)Head of NarrativesSan Francisco, CA · posted August 4View role(opens on LangChain’s site)
Jack’s read for product and design
2 open roles
- 100M+ open source downloads a month across LangChain, LangGraph and Deep Agents.
- New this fall: LangSmith Engine v2, AI Search, Fine-Tuning and Managed Deep Agents.
Jack’s read for people, recruiting and it
5 open roles
- ~400 people now, up from about 150 in February.
- Its first emerging talent recruiter will build an intern and new grad program from scratch.
Founding Emerging Talent RecruiterSan Francisco, CA · posted October 26View role(opens on LangChain’s site)Recruiting CoordinatorSan Francisco, CA · posted October 19View role(opens on LangChain’s site)IT Systems AdministratorSan Francisco, CA · posted October 5View role(opens on LangChain’s site)IT Systems EngineerSan Francisco, CA · posted July 10View role(opens on LangChain’s site)People PartnerSan Francisco, CA, New York, NY · posted January 21View role(opens on LangChain’s site)
New roles added every week since August
AugSepOctNov
New roles each week worldwide, from mid-August to November 5, 2026, from our daily checks of its careers page. The first week of checks is left out, because it counted roles already open.
Closed roles65 since August
Enterprise Account Executive (Philadelphia)Closed November 5, after 78 days
Enterprise Account Executive (Boston)Closed November 5, after 78 days
Director of Commercial SalesClosed November 5
Regional Director, Enterprise Sales (DMV)Closed November 5
Commercial CounselClosed November 3, after 80 days
Deployed Engineer (Early Career-NYC)Closed October 31
The most recent, as of November 5, 2026.
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About this page
Jack & Jill isn’t LangChain’s recruiter. The open roles come straight from LangChain’s public careers page and refresh through the day. Company facts come from LangChain’s own announcements and named press, linked on each card, and were last checked on November 6, 2026. Jack’s take is Jack & Jill’s own.