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

We have significant traction (we’re default alive), growing fast, and are looking for a technical profiles to build out our Go To Market functions in-person either in San Francisco or Berlin, Germany.

As an early GTM hire, you’ll shape Langfuse’s commercial engine end-to-end:

Technical Sales in an inbound-led motion:

• Help customers adopt and understand Langfuse for their use cases.

• Own the full sales cycle: lead prioritization, product-led lead generation, pipeline management, technical POCs, negotiations, and closing deals.

• Develop customer success strategies to ensure retention, upsells, and product adoption.

• Build feedback loops between sales, support and product development.

Process & Systems

• Design and implement CRM workflows, sales pipelines, and documentation (public sales materials, contracts, order forms).

• Experiment with pricing, packaging, and sales strategies for both sales-led and product-led motions.

• Maintain a rigorous system for tracking leads, engagement, and outcomes.

Technical & Commercial Insight

• Understand Langfuse’s architecture and use cases to articulate our value proposition effectively.

• Translate customer requirements (technical, compliance, business) into actionable product feedback.

• Collaborate with product teams to align the commercial roadmap with customer needs.

Requirements

• Hands-on experience in technical sales or customer success at a SaaS/devtool startup.

• Proficiency with CRM tools (e.g., HubSpot, Salesforce) and sales automation.

• Strong technical aptitude; familiarity with LLM/observability tools is a plus.

• Willingness to work in-person ~4 days/week.

Bonus Points

• You’ve used Langfuse (sign up for a free account here) and understand our docs.

• Experience in selling in open-source or developer-focused products.

• Entrepreneurial mindset with a track record of building processes from scratch.

• Experience in navigating enterprise POCs with technical leadership as key decision makers.

Why Langfuse?

• Selling to sophisticated technical users

• Competitive salary & equity compensation

• Strong customer & revenue growth

• You are joining really early

• 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

Team & Culture

You’ll join our early core team, working closely with the founders Clemens (COO, sales) and Marc (CEO, product/marketing). Clemens is based in SF and Marc in Berlin, Germany. We prioritize in-office collaboration and the role can be based out of either office.

Learn more about Langfuse through our Handbook

Further Links:

• Ben Kuhn on Impact, Agency and Taste

• How Posthog does sales

• Clay: The Rise of the GTM Engineer