Software Engineer Jobs at LangChain with Visa Sponsorship
LangChain builds the tooling that powers AI applications, and Software Engineer roles here sit at the intersection of open-source infrastructure and production-grade AI systems. The company has an established track record of sponsoring work visas for engineering talent, making it a realistic target for international candidates.
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Get Access To All JobsAbout The Role
In person 5 days/week in San Francisco, Boston, MA, New York. We are looking for a Senior Backend Engineer to join us. In this role you will be building the backend systems that power LangChain’s observability and evals platform. You will work on the core services that allow developers to monitor and evaluate their AI applications at scale. While the focus is on backend feature development, familiarity with fullstack or frontend engineering, performance tuning, and debugging production issues would be extremely valuable.
What You Will Do
- Design, develop, and maintain backend services and APIs to support LangSmith’s tracing, monitoring, and evaluation workflows.
- Collaborate on architectural decisions to ensure systems are performant and maintainable.
- Optimize storage and query performance for high-volume observability and evaluation data.
- Ensure system reliability through strong testing, monitoring, and alerting practices.
- Troubleshoot and resolve production issues, performing root-cause analysis and implementing long-term fixes.
- Create and maintain technical documentation, including system design and API references.
- Work closely with full-stack engineers, product managers, and product designers on rolling out new features.
What You Will Bring
- 5+ years of professional experience in backend engineering
- Proficiency in one or more backend languages/frameworks, ideally Python or Go
- Strong understanding of API design and building reliable data services.
- Experience with high-throughput or mission-critical systems.
- Demonstrated ability to optimize backend services for performance and reliability.
- Experience with database systems (Postgres, Redis, Clickhouse), and cloud platforms (AWS, GCP, Azure)
- Strong communication skills, with the ability to collaborate cross-functionally
- Customer centricity and ownership mentality
Compensation
Annual salary range: $175,000 - $225,000
About The Role
In person 5 days/week in San Francisco, Boston, MA, New York. We are looking for a Senior Backend Engineer to join us. In this role you will be building the backend systems that power LangChain’s observability and evals platform. You will work on the core services that allow developers to monitor and evaluate their AI applications at scale. While the focus is on backend feature development, familiarity with fullstack or frontend engineering, performance tuning, and debugging production issues would be extremely valuable.
What You Will Do
- Design, develop, and maintain backend services and APIs to support LangSmith’s tracing, monitoring, and evaluation workflows.
- Collaborate on architectural decisions to ensure systems are performant and maintainable.
- Optimize storage and query performance for high-volume observability and evaluation data.
- Ensure system reliability through strong testing, monitoring, and alerting practices.
- Troubleshoot and resolve production issues, performing root-cause analysis and implementing long-term fixes.
- Create and maintain technical documentation, including system design and API references.
- Work closely with full-stack engineers, product managers, and product designers on rolling out new features.
What You Will Bring
- 5+ years of professional experience in backend engineering
- Proficiency in one or more backend languages/frameworks, ideally Python or Go
- Strong understanding of API design and building reliable data services.
- Experience with high-throughput or mission-critical systems.
- Demonstrated ability to optimize backend services for performance and reliability.
- Experience with database systems (Postgres, Redis, Clickhouse), and cloud platforms (AWS, GCP, Azure)
- Strong communication skills, with the ability to collaborate cross-functionally
- Customer centricity and ownership mentality
Compensation
Annual salary range: $175,000 - $225,000
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Get Access To All JobsTips for Finding Software Engineer Jobs at LangChain Jobs
Align your experience with LangChain's stack
LangChain's engineering work centers on LLM orchestration, retrieval-augmented generation, and developer tooling. Contributions to open-source AI libraries or published work with LangChain or LangGraph signal genuine fit before your resume lands in any applicant tracking system.
Target roles that match your visa category
H-1B and E-3 both require a specialty occupation tied directly to your degree field. Software Engineer roles at an AI infrastructure company satisfy that standard clearly, but your degree discipline needs to align with the specific engineering function in the job description.
Prepare for LCA timing before your offer closes
Your employer must file a certified Labor Condition Application with the DOL before USCIS can process your H-1B or E-3 petition. LCA certification typically takes seven business days, so factor that into your start-date negotiation once an offer is extended.
Use Migrate Mate to surface active openings
Software Engineer openings at AI-focused companies fill quickly and aren't always posted broadly. Browse LangChain's current visa-sponsoring roles on Migrate Mate, which filters specifically for positions open to international candidates.
Plan your I-94 status carefully if changing jobs
If you're already in the U.S. on an H-1B with another employer, you can begin work at LangChain once USCIS receives the transfer petition, not when it's approved. Filing before your current job ends protects your status under portability rules.
Software Engineer at LangChain jobs are hiring across the US. Find yours.
Find Software Engineer at LangChain JobsFrequently Asked Questions
Does LangChain sponsor H-1B visas for Software Engineers?
Yes, LangChain sponsors H-1B visas for Software Engineer roles. As an AI infrastructure company operating in a highly specialized technical space, Software Engineer positions at LangChain fit the specialty occupation standard that H-1B requires. Sponsorship is handled through standard employer petition filings with USCIS, including the Labor Condition Application submitted to the DOL before the petition can proceed.
How do I apply for Software Engineer jobs at LangChain?
You can find LangChain's active Software Engineer openings filtered for visa sponsorship on Migrate Mate, which surfaces roles specifically open to international candidates. Once you identify a relevant position, apply directly through LangChain's careers portal. Tailor your application to reflect experience with LLM frameworks, developer tooling, or open-source contributions, as those map closely to how LangChain's engineering teams are structured.
Which visa types does LangChain sponsor for Software Engineer roles?
LangChain sponsors both H-1B and E-3 visas for Software Engineer positions. The H-1B is open to candidates from any country and requires a bachelor's degree or higher in a relevant field such as computer science or software engineering. The E-3 is available exclusively to Australian citizens and follows a similar specialty occupation standard, with no lottery requirement and renewable two-year terms.
What qualifications are expected for Software Engineer roles at LangChain?
LangChain's engineering roles typically require a strong foundation in Python, familiarity with LLM APIs or orchestration frameworks, and experience building or maintaining production systems. Given the company's open-source focus, demonstrated contributions to relevant projects carry significant weight. A bachelor's degree in computer science or a closely related field is generally expected to satisfy the specialty occupation requirement for visa sponsorship purposes.
How do I think about timing when pursuing an H-1B role at LangChain?
If you need a new H-1B cap-subject petition, the annual lottery opens in March for an October 1 start date. Candidates already holding H-1B status from another employer can transfer to LangChain at any point in the year. E-3 holders can also transfer without waiting for a new cap cycle. Building your pipeline with LangChain well before lottery registration in March gives you time to align references, technical assessments, and offer timelines.
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