Software Architect Jobs at LangChain with Visa Sponsorship
Software Architect jobs at LangChain sit at the intersection of distributed systems, LLM tooling, and developer platform design, as the company builds the infrastructure layer for AI applications. LangChain has a track record of sponsoring work visas for technical architecture talent, including H-1B visa and E-3 visa pathways.
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Get Access To All JobsAbout Us
At LangChain, our mission is to make intelligent agents ubiquitous. We build the foundation for agent engineering in the real world, helping developers move from prototypes to production-ready AI agents that teams can rely on. We began as widely adopted open-source tools and have grown to also offer a platform for building, evaluating, deploying, and operating agents at scale.
With $125M raised at Series B from IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we’re at a stage where we’re continuing to develop new products, growth is accelerating, and all team members have meaningful impact on what we build and how we work together. LangChain is a place where your contributions can shape how this technology shows up in the real world.
Today, LangChain, LangGraph, LangSmith, and Fleet are used by teams shipping real AI products across startups and large enterprises. Millions of developers trust LangChain to power AI teams at companies like Replit, Clay, Coinbase, Workday, Lyft, Cloudflare, Harvey, Rippling, Vanta, and 35% of the Fortune 500.
About the Team
The LangSmith team owns and builds LangChain's core platform for observability, evaluation, and production reliability of AI systems. From tracing and annotation to run rules, evaluations, and beyond, they own this end-to-end. If you want to help define what great AI observability looks like at production scale, this is where that work gets done.
About the Role
We're looking for a Principal/Lead level Software Engineer to join the LangSmith team and help drive the technical direction of the platform. You'll build across the full stack from backend services and APIs to frontend product surfaces, and you'll play a central role in shaping how we build: setting engineering standards, mentoring engineers across the team, and making architectural decisions that hold up as we scale. If you're energized by both hands-on engineering and the multiplier effect of leveling up those around you, this role is built for that.
Location: This role can be based in our Boston, San Francisco, or NYC office.
What You'll Do
Drive Technical Direction
- Lead architectural decisions across our Go, Python, and TypeScript stack, ensuring systems are performant, maintainable, and built to scale
- Work across the full stack, owning features end-to-end from backend services and APIs through to frontend product experiences
- Drive tracing, monitoring, and evaluation workflows at scale, with a focus on reliability and query performance across high-volume data
- Help shape the product roadmap by partnering closely with product and design — not just executing on it
Raise the Bar for the Team
- Set engineering standards for the team: define patterns, lead code reviews, and establish the foundations others build on
- Mentor and grow engineers at all levels through code review, design feedback, pairing, and ongoing technical guidance
- Drive projects from ambiguity to delivery while maintaining high engineering standards and aggressive timelines
Own Reliability and Quality
- Troubleshoot and resolve production issues with a root-cause mindset, and implement durable fixes
- Ensure system reliability through strong testing, monitoring, and alerting practices
- Create and maintain technical documentation, including system design docs and API references
What You'll Bring
- 10+ years of professional experience in backend or fullstack engineering on highly complex, production systems
- Strong programming skills across multiple parts of the stack: backend (Python and/or Go) and frontend (TypeScript, React, or similar)
- Demonstrated experience making and owning architectural decisions, including tradeoffs around data systems, APIs, and service reliability
- Experience with high-throughput or mission-critical systems, and a proven ability to optimize for performance and reliability
- Depth in operationalizing technical work — you've taken systems from prototype to production and kept them running well at scale
- Demonstrated track record of mentoring engineers and raising the technical quality of a team, not just the codebase
- Strong communication skills and comfort operating cross-functionally with product, design, and engineering leadership
- Customer centricity and an ownership mentality — you care how the product lands, not just how the code reads
- You exemplify our operating principles
Nice to Have
- Experience with database systems (Postgres, Redis, ClickHouse) and cloud platforms (AWS, GCP, or Azure)
- Familiarity with observability tooling, evaluation frameworks, or AI/LLM infrastructure
Salary Range: $230,000 - $270,000
Compensation Philosophy:
We offer competitive compensation that includes base salary, variable compensation for relevant roles, meaningful equity, benefits, and perks. Actual compensation and offerings will vary based on role, level, and location. Team members in the EU, UK, and APAC receive locally competitive benefits aligned with regional norms and regulations.
Benefits
Benefits include medical, dental, and vision coverage, flexible vacation, a 401(k) plan, meals on in-office days in the US and more.
About Us
At LangChain, our mission is to make intelligent agents ubiquitous. We build the foundation for agent engineering in the real world, helping developers move from prototypes to production-ready AI agents that teams can rely on. We began as widely adopted open-source tools and have grown to also offer a platform for building, evaluating, deploying, and operating agents at scale.
With $125M raised at Series B from IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we’re at a stage where we’re continuing to develop new products, growth is accelerating, and all team members have meaningful impact on what we build and how we work together. LangChain is a place where your contributions can shape how this technology shows up in the real world.
Today, LangChain, LangGraph, LangSmith, and Fleet are used by teams shipping real AI products across startups and large enterprises. Millions of developers trust LangChain to power AI teams at companies like Replit, Clay, Coinbase, Workday, Lyft, Cloudflare, Harvey, Rippling, Vanta, and 35% of the Fortune 500.
About the Team
The LangSmith team owns and builds LangChain's core platform for observability, evaluation, and production reliability of AI systems. From tracing and annotation to run rules, evaluations, and beyond, they own this end-to-end. If you want to help define what great AI observability looks like at production scale, this is where that work gets done.
About the Role
We're looking for a Principal/Lead level Software Engineer to join the LangSmith team and help drive the technical direction of the platform. You'll build across the full stack from backend services and APIs to frontend product surfaces, and you'll play a central role in shaping how we build: setting engineering standards, mentoring engineers across the team, and making architectural decisions that hold up as we scale. If you're energized by both hands-on engineering and the multiplier effect of leveling up those around you, this role is built for that.
Location: This role can be based in our Boston, San Francisco, or NYC office.
What You'll Do
Drive Technical Direction
- Lead architectural decisions across our Go, Python, and TypeScript stack, ensuring systems are performant, maintainable, and built to scale
- Work across the full stack, owning features end-to-end from backend services and APIs through to frontend product experiences
- Drive tracing, monitoring, and evaluation workflows at scale, with a focus on reliability and query performance across high-volume data
- Help shape the product roadmap by partnering closely with product and design — not just executing on it
Raise the Bar for the Team
- Set engineering standards for the team: define patterns, lead code reviews, and establish the foundations others build on
- Mentor and grow engineers at all levels through code review, design feedback, pairing, and ongoing technical guidance
- Drive projects from ambiguity to delivery while maintaining high engineering standards and aggressive timelines
Own Reliability and Quality
- Troubleshoot and resolve production issues with a root-cause mindset, and implement durable fixes
- Ensure system reliability through strong testing, monitoring, and alerting practices
- Create and maintain technical documentation, including system design docs and API references
What You'll Bring
- 10+ years of professional experience in backend or fullstack engineering on highly complex, production systems
- Strong programming skills across multiple parts of the stack: backend (Python and/or Go) and frontend (TypeScript, React, or similar)
- Demonstrated experience making and owning architectural decisions, including tradeoffs around data systems, APIs, and service reliability
- Experience with high-throughput or mission-critical systems, and a proven ability to optimize for performance and reliability
- Depth in operationalizing technical work — you've taken systems from prototype to production and kept them running well at scale
- Demonstrated track record of mentoring engineers and raising the technical quality of a team, not just the codebase
- Strong communication skills and comfort operating cross-functionally with product, design, and engineering leadership
- Customer centricity and an ownership mentality — you care how the product lands, not just how the code reads
- You exemplify our operating principles
Nice to Have
- Experience with database systems (Postgres, Redis, ClickHouse) and cloud platforms (AWS, GCP, or Azure)
- Familiarity with observability tooling, evaluation frameworks, or AI/LLM infrastructure
Salary Range: $230,000 - $270,000
Compensation Philosophy:
We offer competitive compensation that includes base salary, variable compensation for relevant roles, meaningful equity, benefits, and perks. Actual compensation and offerings will vary based on role, level, and location. Team members in the EU, UK, and APAC receive locally competitive benefits aligned with regional norms and regulations.
Benefits
Benefits include medical, dental, and vision coverage, flexible vacation, a 401(k) plan, meals on in-office days in the US and more.
See all Software Architect Jobs at LangChain
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Get Access To All JobsTips for Finding Software Architect Jobs at LangChain
Frame Your Architecture Experience Around AI Infrastructure
LangChain hires architects who can design systems that orchestrate LLMs at scale. Before applying, reframe your resume around retrieval-augmented generation pipelines, agent frameworks, or vector database integrations rather than generic backend or cloud architecture.
Verify Your Employer Identification Number Status
Before accepting an offer, confirm LangChain is registered with E-Verify. USCIS requires H-1B employers to complete I-9 verification, and E-Verify enrollment signals the company has active compliance infrastructure for sponsoring foreign workers.
Target Roles Explicitly Requiring a Relevant Degree Field
H-1B specialty occupation approval depends on the role requiring a degree in a specific field, not just any bachelor's degree. Software Architect postings that name computer science, software engineering, or a related discipline as a hard requirement give your petition the strongest foundation.
Negotiate Sponsorship Scope Before Signing
Clarify upfront whether LangChain will cover premium processing, which cuts USCIS adjudication to 15 business days. For cap-subject H-1B filings, premium processing is often the difference between starting in October and waiting an additional cycle.
Use Migrate Mate to Surface Open Software Architect Roles
LangChain's open Software Architect positions change frequently as the product scales. Search Migrate Mate to filter specifically for LangChain roles that include visa sponsorship, so you're applying to openings where sponsorship is already confirmed rather than guessing.
Prepare for Technical Interviews That Test System Design Depth
LangChain's architect interviews heavily weight distributed system design and LLM orchestration trade-offs. Documenting prior work on multi-agent architectures or stateful workflow systems strengthens both your interview and the specialty occupation evidence your attorney will need for the petition.
Frequently Asked Questions
Does LangChain sponsor H-1B visas for Software Architects?
Yes, LangChain sponsors H-1B visas for Software Architect roles. The H-1B is a specialty occupation visa requiring a bachelor's degree or higher in a relevant field such as computer science or software engineering. Because H-1B is subject to an annual lottery, your employer must submit a registration in March for an October start date. Premium processing is available and significantly reduces USCIS adjudication time.
How do I apply for Software Architect jobs at LangChain?
Start by browsing open Software Architect positions on LangChain's careers page or through Migrate Mate, which filters for roles that include visa sponsorship. Tailor your application to highlight experience with LLM orchestration, distributed systems design, and developer tooling infrastructure. LangChain's hiring process typically involves a recruiter screen, system design interviews, and a technical panel before an offer stage.
Which visa types does LangChain commonly use for Software Architect roles?
LangChain sponsors both H-1B and E-3 visas for Software Architect positions. The H-1B is open to most nationalities and subject to the annual cap, while the E-3 is available exclusively to Australian citizens and has a separate, rarely filled allocation of 10,500 spots per year. Australian applicants should seriously evaluate the E-3 path given its shorter processing timeline and no lottery requirement.
What qualifications does LangChain expect for Software Architect roles?
LangChain typically looks for strong systems design fundamentals, experience building or maintaining large-scale distributed platforms, and hands-on familiarity with LLM frameworks, agent orchestration, or retrieval pipelines. A bachelor's degree in computer science, software engineering, or a closely related field is generally expected. Candidates with open-source contributions to AI tooling ecosystems or prior work at developer infrastructure companies tend to stand out.
How do I understand the H-1B timeline if I'm targeting a Software Architect role at LangChain?
USCIS opens H-1B registration each March for a start date of October 1. If selected in the lottery, your employer files the full petition, and USCIS targets a six-month adjudication window for standard processing. Premium processing cuts that to 15 business days. Build your job search timeline backward from the March registration window to give LangChain adequate time to prepare your petition documentation.