engineering
Posted 3 weeks agoDeveloper Relations Engineer (Content)
at Langfuse
On-site
Requirements
- ABOUT LANGFUSE Open Source LLM Engineering Platform that helps teams build useful AI applications via tracing, evaluation, and prompt management (mission https://tracking.us.nylas.com/l/6d586a21a6fc4e1a8aacc7eb75882b72/0/82383757e54352130f65066e1b2fc4708aacab7897561bcb8000fe4c8a9c6a21?cache_buster=1761124921, product https://tracking.us.nylas.com/l/6d586a21a6fc4e1a8aacc7eb75882b72/1/b9fba3a93b6ffcc0f99ecda62767a17cc437fe8fe0b16181d1c43c1391212e3d?cache_buster=1761124921).
- Largest open source solution in this category: trusted by 19 of the Fortune 50, >2k customers, >26M monthly SDK downloads, >6M Docker pulls.
- Together we can move faster on product while staying true to open source and self-hosting, and join forces on GTM and sales to accelerate revenue.
- You will write, build demos, improve docs, create launch content, speak at events, organize technical sessions, run product deep dives, explain how AI teams should think about observability/evals/prompt management, and help define how Langfuse shows up in the market.
- It is a strong plus if you already write publicly, have an audience, contribute to open source, or have original opinions that experienced AI engineers care about.
- This role is closer to the product: you should be technically strong enough to advocate for Langfuse with serious AI engineering teams, explain the details, and turn what you learn from the market back into better product communication.
- The product sits inside real AI engineering workflows, so the best marketing looks like clear explanations, good demos, runnable examples, honest technical tradeoffs, useful docs, and opinionated launch material.
- WHAT YOU'LL DO - Become a Langfuse subject matter expert across tracing, evals, prompt management, datasets, metrics, self-hosting, and the broader AI engineering workflow - Create product and technical marketing content: blog posts, product deep dives, guides, cookbooks, benchmarks, demos, webpages, docs, conference talks, social posts, launch videos, and more - Translate technical features and nuance into clear value propositions that help developers and teams understand why Langfuse matters - Work
- experience across engineering, technical product marketing, DevRel, data science, technical writing, developer tools, or a similar technical field.
- You make complex technical ideas feel simple without making them shallow - You can code enough to build examples, inspect SDKs, understand traces, and be credible with strong engineers - You can advocate for a technical product in person and in writing.
- You are comfortable explaining why something matters, not just how it works - You have taste in good content and strong opinions about what makes technical writing useful - You can own projects end to end, from messy input to shipped public asset - You can collaborate well across product, engineering, marketing, sales, solutions, support, and ClickHouse counterparts - You are curious about AI engineering and stay close to what developers are actually building Extras - You already create content: blog 1.
- TECH STACK We run a TypeScript monorepo: Next.js on the frontend, Express workers for background jobs, PostgreSQL for transactional data, ClickHouse for tracing at scale, S3 for file storage, and Redis for queues and caching.
- New joiners get all PRs reviewed to learn the codebase, patterns, and how the systems work (onboarding guide https://langfuse.com/handbook/product-engineering/how-we-work/onboarding). - We use AI as much as possible in our workflows to make our users happy.
- We encourage everyone to experiment with new tooling and AI workflows.
- WHY LANGFUSE (NOW PART OF CLICKHOUSE) - This role puts you at the forefront of the AI revolution, partnering with engineering teams who are building the technology that will define the next decade(s). - This is an open-source devtools company.
- You’ll own the full delivery end to end. - We're solving hard engineering problems: figuring out which features actually help users improve AI product performance, building SDKs developers love, visualizing data-rich traces, rendering massive LLM prompts and completions efficiently in the UI, and processing terabytes of data per day through our ingestion pipeline. - You'll work closely with the ClickHouse team and learn how they build a world-class infrastructure company.
- The AI space develops at breakneck speed and our customers are at the forefront.
Contact
- We are also hiring for engineering in EU timezones and expect one week per month in our Berlin office (how we work https://langfuse.com/handbook/how-we-work/principles).
- Decision and offer LINKS - All repos: https://github.com/langfuse - Company handbook: https://langfuse.com/handbook - Team: https://langfuse.com/handbook/chapters/team - How we hire: https://langfuse.com/handbook/how-we-hire - Blog: https://langfuse.com/blog - Docs: https://langfuse.com/docs - Changelog: https://langfuse.com/changelog - Careers: https://langfuse.com/careers/careers SOME TECHNICAL PRODUCT MARKETING WORK WE LIKE - Vercel: developer-first product marketing, launch quality, and high-trust
- You should be familiar with a good chunk of this, but we trust you'll pick up the rest quickly (Stack https://langfuse.com/handbook/product-engineering/tech-stack, Architecture https://langfuse.com/handbook/product-engineering/architecture).
- HOW WE SHIP Link to handbook https://langfuse.com/handbook/how-we-work/principles - We trust you to take ownership (ownership overview https://langfuse.com/handbook/how-we-work/ownership) for your area.
- You'll appear on changelog posts https://langfuse.com/changelog for the features you build, and during launch weeks, you'll produce videos https://langfuse.com/blog/2025-10-29-launch-week-4 to announce what you've shipped to the community.
- We're in a period of strong growth: Langfuse is growing organically and accelerating through ClickHouse's GTM. (Why we joined ClickHouse https://langfuse.com/blog/joining-clickhouse) - If you wonder what to build next, our users are a Slack message or a Github discussions post away. - You’re on a continuous learning journey.
Additional details
- We're building the "Datadog" of this category; model capabilities continue to improve, but building useful applications is really hard, both in startups and enterprises.
- Previously backed by Y Combinator, Lightspeed, and General Catalyst.
- We're a small, engineering-heavy, and experienced team in Berlin and San Francisco.
- European roles are remote-first with one week per month in Berlin.
- For US candidates, San Francisco is preferred, but we are open to exceptional candidates anywhere in the US. TL;DR We are hiring a Developer Relations Engineer who can understand Langfuse deeply, use the product hands-on, and explain it better than anyone else.
- The best person for this role is an engineer or highly technical product marketer who wants to educate through content.
- WHY DEVELOPER RELATIONS ENGINEERING AT LANGFUSE Langfuse needs technical product communication that is useful enough for strong engineers.
- This role is for someone who wants to live close to the product and the market at the same time.
- You should be able to understand how a feature works, explain why it matters, build the example that proves it, and turn customer and community questions into better product communication.
- Exact title matters less than work quality - You can write exceptionally well.