Senior Platform Engineer, Ingestion

LangChain

Own ingestion systems and APIs for LangChain's observability platform. Design and operate high-throughput systems built on SmithDB for distributed AI frameworks.

Posted 6/14/2026full-timeRemote • 🇳🇱 NetherlandsSeniorWebsite

Tech Stack

Tools & technologies

AWSCloudGoGoogle Cloud PlatformGrafanaJavaKubernetesPostgresPrometheusPythonRedisTypeScript

About the role

Key responsibilities & impact

Build and scale critical systems: design and operate high-throughput, data-intensive ingestion and trace-query systems supporting LangSmith, built on SmithDB, our purpose-built 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 generation across Python, TypeScript, Go, and Java; keep our developer surfaces consistent, high-quality, 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 framework, agent, or tool — keeping us framework-agnostic
Solve complex problems: debug performance bottlenecks, optimize database queries, and architect solutions for distributed-system challenges
Respond to incidents: participate in an on-call rotation focused on post-incident learning, automation, and prevention

Requirements

What you’ll need

hands-on experience designing and running data-intensive systems at scale
a track record of building high-quality, widely-adopted CLIs, SDKs, or API standards that developers actually enjoy using
production experience with OSS datastores (PostgreSQL, Redis)
Strong backend software engineering skills with production-level experience in Go, Python, or TypeScript
solid knowledge of cloud object storage, Kubernetes, containerized infrastructure, and cloud platforms (GCP, AWS)
hands-on experience with observability stacks (Datadog, Prometheus/Grafana, OpenTelemetry, or similar)
"you build it, you run it, you own it," with a focus on sustainable practices

Benefits

Comp & perks

health and dental coverage
flexible vacation
401(k) plan
life insurance

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

data-intensive systemsAPI standardsSDK developmentCLI developmentPostgreSQLRedisGoPythonTypeScriptKubernetes

Soft Skills

problem-solvingincident responseautomationsustainable practices