Software Engineering Manager, AI Observability & Evals Platform (Boston)
Lead the engineering team building LangSmith, an observability and evaluation platform for LLM applications.
Posted by employer 1 week ago
First seen on Joblaze 1 month ago
Last verified on the company career page 19 hours ago
Skills & Technologies
What you'll build
- Build a high-performing team of engineers
- Define technical direction for LangSmith
- Partner with product and design teams
- Maintain technical excellence
- Engage with customers for product improvements
Must have
- Experience managing or tech-leading teams
- Strong technical background in Go/Python and React/TypeScript
- Solid understanding of databases
Nice to have
- Experience building AI/LLM-powered applications
- Experience with developer tools
- Experience with observability platforms
Role intensity
10% coding — mostly leadership/strategy
Not disclosed in this posting: years of experience, work arrangement, visa sponsorship.
Benefits
Joblaze summary
The Software Engineering Manager for LangChain's AI Observability and Evals Platform will oversee the development of LangSmith, focusing on building a high-performing engineering team and ensuring the platform's scalability and reliability. Key skills include proficiency in Go, Python, and React/Typescript, along with experience in managing complex full-stack products. This role is suited for someone with a strong technical background and a collaborative mindset, particularly those who have worked with AI or observability tools. The team is integral to defining best practices in AI observability at production scale.
Joblaze insights
- Listed about a month ago — first seen on Joblaze September 11, 2026. Last confirmed on LangChain's careers page October 28, 2026.
- Salary band is above the typical range for Management roles (median ~$170,000).
- Starts above 44% of 45 comparable lead management roles in United States that list Python we track (median $200,000 across 25 companies). See Python salary trends
- Python appears in 12.9% of 611 comparable lead management roles in United States; ClickHouse appears in 0.7% of 611 comparable lead management roles in United States.
Quick facts
- What's the salary range?
- LangChain lists $200,000–$240,000 for this role.
- What's the tech stack?
- Joblaze extracted these technologies from the posting: ClickHouse, Go, PostgreSQL, Python, React, Redis.
- What seniority level is this role?
- LangChain targets lead candidates for this position.
- Is this full-time or contract?
- Full-time for this Software Engineering Manager, AI Observability & Evals Platform (Boston) role at LangChain.
From the original posting
About Us
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, this team owns LangSmith end-to-end. If you want to define what great AI observability looks like at production scale, this is where that work gets done.
About the role
We’re looking for an Engineering Manager to lead the team building LangSmith, our observability and evaluation platform for LLM applications. You’ll define the technical direction, grow and mentor a world-class engineering team, and partner with product and design to deliver features that help developers build and deploy trustworthy AI systems with confidence.
What you'll do
Build, mentor, and grow a high-performing team of engineers, fostering collaboration, ownership, and accountability
Strengthen LangChain’s engineering culture through mentorship, high-quality code, and technical excellence
Shape long-term technical direction and ensure scalability and reliability of LangSmith AI Observability Platform
Partner with product and design teams to define scope, sequence, and success criteria for key initiatives
Maintain a high bar for technical excellence while making sure the team moves with urgency and focus
Lead by example in writing clean, maintainable, and well-tested code in Go/Python and Typescript
Engage directly with customers to understand their needs and translate them into actionable product improvements
What you'll bring
Experience managing or tech-leading teams delivering complex full-stack products
Strong technical background in Go/Python and React/Typescript
Solid understanding of databases (Postgres, Redis and ClickHouse)
Proven ability to design high throughput data-intensive systems
Bias towards shipping quickly and learning from customers
Strong communication skills—able to collaborate with internal stakeholders and engage directly with customers
Bonus: Experience building AI/LLM-powered applications, developer tools, or observability platforms
Annual salary range: $220,000- $270,000
Standard company text repeated across LangChain's postings is omitted here.