Senior Product Engineer (f/m/d)

United States Digital Space LLC; Berlin; Vor Ort; EUR 90.000 - 130.000; Vollzeit

Benefits dieser Stelle

Above-market salary

Direct founder access

Autonomy to build what you choose

Claude/Cursor/OpenAI tooling

Zusammenfassung

Integral is seeking a Senior Product Engineer to help build trustworthy product experiences for payroll, tax, and accounting for SMEs in Europe, starting in Germany. You will own outcomes, balancing speed with craftsmanship, using state-of-the-art tools and methodologies.

You’ll ship features end-to-end, collaborate with Product and Design, and improve security and performance of core platforms. You’ll join a startup with strong backing and a focus on practical AI-driven development, analytics,

Qualifikationen

• 5+ years in software engineering with product-building experience at startup or high-growth company.
• Own features and services end-to-end and drive measurable customer impact.
• Comfortable with ambiguity and collaborating with Product and Design.
• Turn constraints into focus, manage time well, and improve codebases and teams.
• Simplify complex systems and build comprehensible plans.
• Familiar with AI coding tools and able to audit/test AI-generated code.

Aufgaben

• Ship user-facing features end-to-end from ideation to release and iteration.
• Collaborate with Product and Design to translate complex requirements into scalable solutions.
• Improve reliability, performance, and security of payroll, accounting, and tax platforms.
• Raise the bar on engineering quality via reviews, pairing, testing, and documentation.
• Instrument features with analytics and logging; measure impact and iterate.
• Own critical product areas with high-impact improvements.
• Balance short-term delivery with long-term architectural investments.
• Drive simplicity to reduce cognitive load for users and developers.

Kenntnisse

TypeScript/JavaScript

Java

Python

Domain Driven Design

Testing (unit/integration)

Observability

Security basics

Tools

Claude

Cursor

Copilot

OpenAI

Jobbeschreibung

Mission

Founded in 2024 by Lukas Zörner and Anil Can Baykal, Integral set out to redefine how accounting, taxation and payroll works for SMEs in Europe, starting with Germany. The company is backed by General Catalyst, Cherry Ventures, Puzzle Ventures and entrepreneurs across Europe.

As Senior Product Engineer, you will help us build trustworthy product experiences that solve real customer problems on payroll, tax and accounting. Own outcomes, not just output, balancing speed and craftsmanship to deliver value that compounds using state-of-the-art tools and methodologies.

What you'll do

• Ship user-facing features end-to-end: ideation, technical design, implementation, testing, release, and iteration
• Collaborate with Product and Design to turn complex requirements into elegant, scalable solutions
• Improve the reliability, performance, and security of our payroll, accounting, and tax platforms
• Raise the bar on engineering quality via thoughtful reviews, pairing, testing, and documentation
• Instrument features with analytics and logging; measure impact and iterate quickly
• Own critical product areas with a bias for high-impact improvements
• Balance short-term delivery with long-term architectural investments
• Drive simplicity: reduce cognitive load for users and developers alike

What makes it special

• High ownership: you'll shape what we build and how we build it
• Your engineering decisions directly influence user experience and business outcomes
• Tight feedback loops with customers and internal stakeholders
• Pragmatic pace: ship, learn, iterate, without sacrificing quality

Experience & Mindset

• 5+ years in software engineering with significant product-building experience at a startup or high-growth company
• Proven track record of owning features and services end-to-end and driving measurable customer impact
• Comfortable with ambiguity and discovery; experienced collaborating closely with Product and Design
• You turn constraints into focus, manage your own time, and leave codebases and teams better than you found them
• You simplify complex systems, make good decisions reversible, and build comprehensible plans
• Comfortable using AI coding tools like Cursor, Copilot, or Claude, and able to audit and test AI-generated code

Technical Skills

• Strong in at least two of: TypeScript/JavaScript, Java, Python
• Domain Driven Design: solid grasp of domain design and relationships
• Testing: unit, integration, and end-to-end; CI/CD, feature flags, and rollout strategies
• Observability: logs, metrics, traces; familiarity with SLOs and incident response
• Security basics: authN/authZ, secrets management, threat modeling, secure coding practices

The process

1. Intro Call with our Talent Team

2. Deep dive Interview with our CTO & co-founder

3. On-site Coding Interview at our Berlin office with the engineering team

4. Founder Conversation with our CEO & co-founder

Our offer

• Above-market salary
• Direct line to the Founders: no filter, no queue, no committee
• Total autonomy on what you build; we measure hours saved
• The best tools, no questions asked: Claude Max, Cursor, OpenAI, whatever ships next week
• Internal tools and resources purpose-built to support agentic AI development at scale, read about how we work at engineering.integral.de
• 28 vacation days per year, plus half-days on December 24 and 31
• Urban Sports Club membership, coupons (Sachbezüge) to over 200 partners or Deutschlandticket, your choice
• Best equipment you need to succeed
• Company pension scheme (bAV)
• Modern office in the heart of Berlin Prenzlauer Berg, right next to Mauerpark
• Weekly team lunches on us, office BBQs, and a dinner budget for late nights after 8pm
• A team of 50+ (and growing!) ambitious, diverse people, 20%+ ex-founders learning and building together