Senior Product Engineer (f/m/d) at Integral Services GmbH | DE | Rezi

Senior Product Engineer (f/m/d) at Integral Services GmbH

Senior Product Engineer (f/m/d)

Integral Services GmbH · DE

Today

Senior Product Engineer (f/m/d)

Integral Services GmbH · DE

9 hours ago
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About the Role

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.

Responsibilities

  • 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

Requirements

  • 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

Skills

  • TypeScript/JavaScript
  • Java
  • Python
  • Domain Driven Design
  • Testing: unit, integration, and end-to-end
  • CI/CD
  • Feature flags
  • Rollout strategies
  • Observability: logs, metrics, traces
  • SLOs
  • Incident response
  • Security basics: authN/authZ
  • Secrets management
  • Threat modeling
  • Secure coding practices

Location

  • Berlin

Work Type

  • Onsite

Experience Level

  • 5+ years

Salary/Compensations

  • Above-market salary

Benefits

  • 28 vacation days per year, plus half-days on December 24 and 31
  • Urban Sports Club membership
  • Coupons (Sachbezüge) to over 200 partners
  • Deutschlandticket
  • Best equipment you need to succeed
  • Company pension scheme (bAV)
  • Weekly team lunches
  • Office BBQs
  • Dinner budget for late nights after 8pm

About the Company

  • 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.
  • A team of 50+ (and growing!) ambitious, diverse people, 20%+ ex-founders learning and building together