Product Engineer
Full Time
full time
$70,000 - $160,000/year
20 May 2024
Verified by Turrior
Content + Source + Freshness • 12 Dec 2025 • 95% confidence
84 / 100
Offer value
Valuable role in a rapidly growing tech startup offers high autonomy, competitive pay, and engaging work on groundbreaking LLM products.
- Salary range: $70,000–$160,000 per year
- Involvement in pioneering LLM engineering projects
- Strong focus on collaboration and user engagement
- Requires skill in both front-end and back-end technologies
Pros
- Engage in cutting-edge product development in LLM engineering
- High level of autonomy and creativity in project management
- Collaborative environment with a strong engineering culture
Cons
- Smaller team might require wearing multiple hats
- Need for adaptability in a fast-paced environment
- Potentially demanding work hours due to project timelines
Who it's for
Mid-level / Senior • In-person
Good fit
- Experienced product engineers eager to innovate
- Developers with a keen interest in user-driven design
- Candidates looking for growth in a startup environment
Not recommended for
- New entrants to the field without relevant experience
- Individuals seeking strictly defined roles with limited scope
- Those who prefer working remotely or with minimal user interaction
Motivation fit
Interest in developing innovative solutions for technical usersDesire for autonomy in work and decision-makingPassion for engaging directly with end-users and feedback
Key skills
Full-stack development in TypeScriptProject management and executionUser communication and supportDocumentation and technical writing
Score: 84/100 AI verified analysis
About the job
In Short: We're looking for an experienced product engineer to ship category defining LLM engineering products.
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 in-person from Berlin, Germany.
What you'll do
- Do whatever it takes to build new features for our users. For this you are not afraid to touch FE, BE, SDKs or Docs
- You love to communicate with users on a call or in one of our hundreds of slack channels
- You will come up with a plan on how to build the next big feature at Langfuse and execute on it
- Doing support
- Writing docs
Tech Stack
- Frontend and Backend in Typescript (including Express, NextJs, Tailwind, Prisma, tRPC)
- Clickhouse, Postgres, Redis, S3
- Client facing SDKs in Python and Typescript
- You should be familiar with a majority of these but we trust that you can pick up a new language/framework quickly.
What we're looking for
- Someone who is able to PM and project manage themselves
- Experience building highly reliable, scaling infrastructure
- Interest in open source software and talking to users
- Hard worker who thrives in a small, accountable team
- CS or quantitative degree preferred
- Impressive achievements (professional or otherwise)
Bonus points:
- Former founder
- Experience in SDK design
- DX, ML/AI background
Why Langfuse?
- Building for very sophisticated technical users
- Competitive salary & equity compensation
- Strong customer & revenue growth
- You are still joining really early
- Strong in person engineering culture (Berlin-Mitte)
- Extreme autonomy
- Performance and learning focused culture
- Everyone on the team says: "best place I've ever worked at"
- 2 short scheduled meetings per week
