LangChain - Senior Backend Software Engineer, AI Observability & Evals Platform (LangSmith)

United States$175k - $240k+ Equity3w ago

In Office Senior NA Cloud Computing Software Engineer Senior Backend Developer Go Python Redis ClickHouse GCP

Requirements

• 5+ years of professional experience in backend engineering working on highly complex products • 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

Responsibilities

• 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.

Benefits

• We offer competitive compensation that includes base salary, variable compensation for relevant roles, meaningful equity, benefits, and perks. • We are hiring for this role across a range of scope, and the compensation band reflects that. Your offer depends on what we learn about your impact, craft, leadership, and communication during the interview process. We will tell you early where you’re tracking and talk comp with you before offer stage. Team members in the EU, UK, and APAC receive locally competitive benefits aligned with regional norms and regulations. • Benefits include medical, dental, and vision coverage, flexible vacation, a 401(k) plan, meals on in-office days in the US and more.