GTM Engineer

GTM Engineer / Technical Sales at Langfuse

TLDR; Langfuse is building open source dev tooling for LLM apps based on observability/tracing. 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.

Background

Langfuse is the open-source LLM engineering platform, helping engineers understand user interactions with LLM applications and improve them. We work with great customers like Twilio, SumUp, and KhanAcademy and have raised a seed round from Y Combinator, Lightspeed, and General Catalyst. Tens of thousands of engineers rely on Langfuse - learn more about us here.

Your Role

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

Our Process

We can run this process in less than 7 days:

1. Fill out application

2. We screen your application

3. First Call: Quick intro & chat about logistics

4. Second Call: Founder Deepdive (40mins), remote

5. Third Call: Technical Deep Dive interview (60min)

6. Super Day ( half or full day in Office, remote in some cases)

7. Meet the other founders (short calls)

8. Decision & Offer

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