Frontend Engineer
LangfuseGermany9 days ago
Full-timeEngineering, Information Technology
Track This Job
Add this job to your tracking list to:
- Monitor application status and updates
- Change status (Applied, Interview, Offer, etc.)
- Add personal notes and comments
- Set reminders for follow-ups
- Track your entire application journey
Save This Job
Add this job to your saved collection to:
- Access easily from your saved jobs dashboard
- Review job details later without searching again
- Compare with other saved opportunities
- Keep a collection of interesting positions
- Receive notifications about saved jobs before they expire
AI-Powered Job Summary
Get a concise overview of key job requirements, responsibilities, and qualifications in seconds.
Pro Tip: Use this feature to quickly decide if a job matches your skills before reading the full description.
In short: We're hiring a Frontend Engineer to build performant, scalable user interfaces for our rapidly growing LLM engineering platform.
About Langfuse
Past projects you would have led:
You should be familiar with a majority of these but we trust that you can pick up a new language/framework quickly.
About Langfuse
- We are building the fastest growing open-source LLM engineering platform.
- We help engineers and enterprises build and run LLM applications at scale.
- We've raised $4m from Y Combinator, Lightspeed and General Catalyst.
- Thousands of teams and engineers use Langfuse daily
- Thousands are joining every month
- We're a small, focused team working from Berlin, Germany.
Past projects you would have led:
- Building complex data visualization components for billions of LLM traces
- Optimizing bundle sizes and implementing code splitting for faster load times
- Creating performant table components that handle millions of rows of data
- Building real-time dashboards with WebSocket connections
- Implementing advanced filtering and search interfaces for complex datasets
- Writing comprehensive frontend tests and setting up CI/CD pipelines
You should be familiar with a majority of these but we trust that you can pick up a new language/framework quickly.
- React
- Frontend and Backend in Typescript (including Express, NextJs, Tailwind, Prisma, tRPC)
- Clickhouse, Postgres, Redis, S3
- 3+ years of experience in frontend development
- Experience building high-performance web applications that handle large datasets
- Strong understanding of React, TypeScript, and modern frontend tooling
- Experience with state management and data fetching patterns
- Hard worker and thrive working in a small and accountable team
- Excited about open source software
- A CS/quantitative degree is preferred
- Performance optimization and profiling experience
- ML/AI experience
- Impressive achievements from previous careers or side projects
- Previous startup or founding experience
- You are joining really early
- Strong Product Market Fit!
- We are building a very small but highly capable team
- Only hiring Engineering in foreseeable future
- Strong customer & revenue growth
- Building picks and shovels for the hottest AI companies
- Building for very sophisticated technical users
- Competitive salary & equity
- Performance and learning focused culture
- Everyone on the team says: "best place I've ever worked at"
- Engineering based in Berlin ( we aim for 4-5 days in the office )
- No more than 2 short scheduled meetings per week
- Extreme ownership & autonomy how and what to work on
- Our codebase: GitHub Repository
- Ben Kuhn on Impact, Agency and Taste
- Who we are & how we work
Key Skills
Ranked by relevanceReady to apply?
Join Langfuse and take your career to the next level!
Application takes less than 5 minutes