Job description
Product Engineer (AI)
Company Overview
Kombo (YC S22) is building HR tech infrastructure that saves engineering teams hundreds of hours by replacing the need for dozens of integrations with one. Kombo is building the unified API for HR, payroll, and recruiting systems. Instead of companies spending months integrating with dozens of different systems, they can integrate once with Kombo and instantly connect to over hundred platforms. We abstract away the complexity of handling different data schemas, authentication methods, and API quirks.
Since going through Y Combinator in 2022, we:
- Grew from zero revenue to $8M+ ARR and hundreds of customers in 24 months (growth-wise among the ~top-5% of VC-backed startups)
- Scaled to process data for the equivalent of 10% of Germany's workforce
- Raised $8M+ of funding from Y Combinator, 468 Capital and other top-tier investors
- Grew to a team of 45+ Kombies (pictures!)
Job Summary
We're looking for a product-minded full-stack engineer to help build and scale products for a rapidly growing customer base. This is a Berlin-based onsite role.
As a Product Engineer (AI), you’ll take full ownership of major features in our AI Apply product — architecting our product, working closely with customers, and shipping high-impact features end-to-end.
Projects you would have worked on in the past:
- Using LLMs to power browser automations to parse and apply to job pages at scale
- (De)-validating an internal MCP for building integrations more efficiently in a few-week PoC
Stack: TypeScript (required), Node.js, React, PostgreSQL, GCP, Docker, Prisma, Gemini & Langfuse. Hands-on experience with LLMs and context engineering in production use cases is highly valued. You don’t need to know everything — we value strong fundamentals and learning velocity.
The Challenge: You're joining at a critical time. This means operating in a high-growth environment (2–3× per year) that feels like a new company every few months.
Key Responsibilities
- Take full ownership of major features in our AI Apply product — architecting our product, working closely with customers, and shipping high-impact features end-to-end.
- Build features that customers actively request and start using the same day.
- Identify and solve problems without bureaucracy.
Requirements / Qualifications
- Expertise in designing B2B Software applications
- Familiarity with major LLM providers (OpenAI, Anthropic, Google, open-source models) and their APIs
- Ideally 3+ years of software development experience
- Proficiency or capacity to learn our tech stack: Node.js, React, Postgres, Prisma, TypeScript
- Experience with LLM observability and evaluation frameworks (Braintrust, Langfuse, etc.)
- Enthusiastic and collaborative work attitude
- You thrive when you have autonomy, own as many of the details as possible, and project manage your own work
- You have strong engineering fundamentals, code efficiently, and you know what you're great at and what you're less great at
- You dislike meetings and would much rather focus your time on building, being productive, and shipping code
Preferred Qualifications
- Previous founding experience is a plus!
Location
Berlin, Germany, Remote: False
Employment Type
Full Time
