(Product) Designer

About Langfuse

• Open Source LLM Engineering Platform that helps teams build useful AI applications via tracing, evaluation, and prompt management (mission, product)

• We have the chance to build the "Datadog" of this category; model capabilities continue to improve but building useful applications is really hard, both in startups and enterprises

• Largest open source solution in this category: >2k customers, >14M monthly SDK downloads, >6M docker pulls

• We raised money from world class investors (Y-Combinator, Lightspeed, General Catalyst) and are default alive by making more money than we spend

• We're a small, engineering-heavy, and experienced team in Berlin and San Francisco (how we work)

About the Role

In short: We hiring a designer to help us elevate our user’s experience.

What you'll do

• Work on our core products and come up with improved designs to help our users navigate the product and elevate our branding

• Collaborate closely with our product engineers

• Make our data-dense application easy to use

• Make Langfuse the best developer focused UI out there

• Simplify complex user flows

• Create reusable, consistent UI elements that our product engineers can re-use

What we're looking for

• 3+ years of experience in designing complex web applications, incl. a portfolio showcasing product work that users loved

• Take ownership of our UI/UX made for developers

• You want to talk to users

• Hard worker and thrive working in a small and accountable team

• Good understanding of best in class UI/UX

• Excited about open source software and dev tools

Bonus

• ML/AI experience

• Impressive achievements from previous careers or side projects

• Previous startup or founding experience

Why Langfuse?

• 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"

How we work

• Engineering based in Berlin (we aim for ~4 days in the office)

• No more than 2 short scheduled meetings per week

• Extreme ownership & autonomy how and what to work on

Hiring Process

We can run this process in less than 7 days.

1. Fill out application

2. We screen your application

3. Jump on an intro call with our CTO

4. Technical Deep Dive interview

5. Super Day (half or full day in Berlin Office)

6. Meet the other founders (short calls)

7. Decision & Offer

Links

• Our codebase: GitHub Repository

• Ben Kuhn on Impact, Agency and Taste

• Who we are & how we work