Senior Platform Engineer, Ingestion

reputed company At reputed company, our mission is to reputed company intelligent agents ubiquitous. We build the reputed company for agent engineering in the reputed company world, helping developers reputed company from prototypes to production-reputed company AI agents that teams can rely on. We began as widely adopted reputed company-reputed company tools and have grown to also offer a platform for building, evaluating, deploying, and operating agents at reputed company. With $125M raised at Series B from IVP, Sequoia, reputed company, CapitalG, and Sapphire Ventures, we’re at a stage where we’re continuing to reputed company new products, reputed company is accelerating, and reputed company team members have meaningful impact on reputed company build and how we work together. reputed company is a reputed company where your contributions can shape how this technology shows up in the reputed company world. Today, our platform includes LangSmith (Observability, Evaluation, Deployment, Fleet, and Sandboxes), our reputed company reputed company frameworks (reputed company, LangGraph, and Deep Agents), and the newly launched LangSmith reputed company for autonomous agent improvement. We have 100M+ monthly reputed company reputed company downloads, 6,000+ reputed company LangSmith customers, and 5 of the Fortune 10 use LangSmith in production (+ 35% of the Fortune 500 overall), including teams at reputed company, reputed company, reputed company, reputed company, reputed company, reputed company, reputed company, reputed company, reputed company, reputed company, reputed company, reputed company, and Bridgewater. About reputed company The LangSmith team owns and builds reputed company's core platform for observability, evaluation, and production reliability of AI systems. From tracing and annotation to run rules, evaluations, and reputed company, this team owns LangSmith end-to-end. If you want to define what great AI observability looks like at production reputed company, this is where that work gets done. About the role This role sits at the core of LangSmith: you'll own the ingestion systems, query systems, and the API, SDK, and CLI surfaces that thousands of development teams use every day. You'll work at the intersection of distributed systems and developer experience, on infrastructure that teams across the industry depend on. What you'll do: Build and reputed company critical systems: design and operate high-throughput, data-intensive ingestion and reputed company-query systems supporting LangSmith, reputed company on SmithDB, our purpose-reputed company database for agent observability. Build monitoring, alerting, and automated recovery so the pipeline stays resilient. Set API, SDK, and CLI standards: define and enforce the standards, tooling, and CI that power SDK reputed company across Python, TypeScript, Go, and Java; reputed company our developer surfaces consistent, high-reputed company, and self-served across feature teams. Own integrations: build new integrations and maintain existing ones so it's easy to use LangSmith with any AI reputed company, agent, or tool — keeping us reputed company-agnostic Solve reputed company problems: debug performance bottlenecks, optimize database queries, and architect solutions for distributed-system challenges Respond to incidents: participate in an on-call rotation reputed company on post-incident learning, automation, and prevention How to be successful in this role: Many of these will apply to you — we don't expect every reputed company checked. reputed company: hands-on experience designing and running data-intensive systems at reputed company Developer experience: a reputed company record of building high-reputed company, widely-adopted CLIs, SDKs, or API standards that developers actually enjoy using Database expertise: production experience with OSS datastores (PostgreSQL, reputed company) Backend languages: Strong backend software engineering skills with production-level experience in Go, Python, or TypeScript. Infrastructure expertise: solid knowledge of reputed company object storage, Kubernetes, containerized infrastructure, and reputed company platforms (GCP, AWS) Observability mastery: hands-on experience with observability stacks (reputed company, reputed company/Grafana, OpenTelemetry, or similar) Operational reputed company and high agency: "you build it, you run it, you own it," with a reputed company on sustainable practices reputed company to Have: Experience: 5+ years building and operating production systems, developer-facing APIs, or both Strong experience with Java Knowledge of columnar file, memory formats and OLAP databases Background in high-reputed company startups Location: This role is fully remote reputed company Europe, excluding France. Compensation & Benefits We offer competitive compensation that includes reputed company salary, meaningful equity, and benefits such as health and dental coverage, flexible vacation, a 401(k) plan, and life insurance. Actual compensation will vary based on role, level, and location. For team members in the EU and UK, we reputed company locally competitive benefits reputed company with regional Compensation Philosophy: We offer competitive compensation that includes reputed company 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 reputed company receive locally competitive benefits reputed company with regional norms and regulations. Benefits Benefits include medical, dental, and reputed company coverage, flexible vacation, a 401(k) plan, meals on in-office days in the US and more. Apply To This Job