The Opportunity
Our client is one of Germany's fastest-growing technology companies, building an AI-native platform for accounting, payroll and tax for SMEs across Europe.
As a Senior Product Builder, you'll own a core area of the product end-to-end. This isn't a traditional Product role — you'll work directly alongside senior engineers, prototype ideas, write specs when needed and use AI tools to build and ship, rather than simply manage a roadmap.
You'll spend time with users, understand how their workflows operate and turn manual, complex processes into simple, AI-powered products.
This is an onsite role based in Berlin, working closely with the founders and senior engineering team.
What You'll Do
- Own a core product area from discovery through to release and iteration
- Prototype ideas yourself and work closely with engineers to ship production features
- Spend time with users and domain experts to understand real-world problems
- Learn complex accounting and payroll workflows and understand what "correct" means
- Design workflows that are accurate, auditable and traceable
- Identify where AI can automate work and where human oversight remains important
- Turn manual processes into AI-powered agents and workflows
- Prioritise features based on customer impact and measurable time saved
- Make product decisions across discovery, prioritisation, release and iteration
- Work directly with the CTO and founders to shape the product
What Makes the Role Interesting
- Build, don't just manage: You'll prototype, experiment and get close to the actual product
- True ownership: You'll have responsibility for an entire product area and decide what gets built
- AI-native from the ground up: AI isn't an add-on — it's fundamental to how the product is being built
- Complex problems: Work across accounting, payroll, tax and highly regulated workflows where getting the details right matters
- Direct founder access: Work closely with the founders and senior engineering team
- Early-stage impact: Many of the biggest product decisions are still open
- Real customer impact: Your work will help thousands of businesses reduce manual financial and administrative work
Your Experience
We're looking for someone who:
- Has experience building products from 0 to 1
- Is highly hands-on and enjoys prototyping and shipping
- Can take an idea and turn it into something users can use
- Uses AI tools such as Claude, Cursor or OpenAI to build and move faster
- Thinks in systems and can bring clarity to complex or ambiguous problems
- Is comfortable operating independently and taking ownership
- Has a strong product instinct and knows when to ship rather than over-engineer
- Can balance a high-quality bar with speed and iteration
- Is fluent in German and English
Particularly Relevant Experience
- Experience in fintech or building products within accounting, payroll, banking or other financial domains
- Experience working with complex systems involving significant state, edge cases and integrations
- Experience where accuracy, auditability and regulatory requirements are critical
- Familiarity with German tax, accounting or regulatory requirements for SMEs
- Previous experience in an early-stage startup or scale-up environment
Hiring Process
The client moves quickly, with the full process designed to take less than two weeks.
- Introductory call with the Chief of Staff
- Product deep-dive interview with the Product Building team
- Reference calls
- On-site interview in Berlin, including a real product problem, meetings with the co-founders and an office tour
What's on Offer
- Above-market salary
- Direct access to the founders and senior leadership
- Significant autonomy over what you build
- Impact measured through hours saved for customers
- Access to leading AI development tools including Claude Max, Cursor and OpenAI
- Internal tooling designed specifically for agentic AI development
- 28 days' annual leave, plus additional half-days on December 24 and 31
- Choice of MacBook Pro or Windows laptop
- Company pension scheme
- Modern Berlin office
- Weekly team lunches, office events and dinner budget for late evenings
- Ambitious, diverse team with significant startup and founder experience