Senior Software Engineer – Backend / Fullstack (d/f/m)

Personio's intelligent HR platform helps small and medium-sized organizations unlock the power of people by making complicated, time-consuming tasks simple and efficient. Our team of 1,500 Personios is building user-friendly products that delight our 15,000+ customers and their 1.5 million employees. Ready to make an impact from day one?
Senior Software Engineer – Backend / Fullstack (d/f/m)
Product, Technology & Design Full Time Munich, Berlin or London
About the Role
We’re hiring multiple Senior Software Engineers across Personio.
This is an opportunity for experienced engineers who want to work on meaningful, high-impact problems across a range of product areas. Depending on your experience and interests, you could join teams working on:
Payroll & Fintech systems

Time & Attendance

Core HR platform

Workflow automation

Integrations & platform services

AI-powered product experiences

All of these areas are critical to our mission of building the People Operating System for Europe, used by thousands of organisations to manage their people, payroll, and processes.
What You’ll Do
Design, build, and scale backend or fullstack systems used by thousands of customers

Own features end-to-end, from problem definition through to production

Work on distributed systems where reliability, performance, and correctness matter

Collaborate closely with Product, Design, and other engineering teams

Contribute to architectural decisions and continuously improve our systems

Help shape engineering best practices and raise the bar across teams

What We’re Looking For
Strong experience as a Software Engineer in production environments

Solid backend skills (Java, Kotlin, or similar) and/or fullstack experience

Experience building scalable, reliable systems

Ability to navigate ambiguity and contribute to problem definition

A strong sense of ownership and accountability

Clear communication and collaboration skills

AI Fluency: You have hands-on experience using AI to improve your workflow, and the sound judgment to know exactly when to rely on it and when to step in yourself.

Nice to Have (depending on team)
Experience in payroll, fintech, or regulated domains

Exposure to distributed systems or event-driven architectures

Experience with cloud platforms (e.g. AWS)

Interest or experience in AI-driven development workflows

How This Role Works
This is a general application for Senior Software Engineers across Personio .
Rather than asking you to pick the “right” team upfront, we’ll work with you to find the best fit based on your experience and interests.
You apply once

We assess your experience, strengths, and interests

We match you to the team and problem space where you’ll have the most impact

This allows us to find the best fit for you across multiple product areas, rather than limiting you to a single role.
Locations & Working Model
This role can be based in:
Munich

Berlin

London

We follow a hybrid working model with 2 days per week in the office , giving you a balance of in-person collaboration and flexibility.
Why Personio
At Personio, we’re building the People Operating System for Europe.
You’ll be joining a high-growth, product-led company where engineering plays a central role in shaping the business. Our teams work on complex, high-impact systems that directly affect customers’ day-to-day operations.
What you can expect:
Competitive salary and equity

28 days holiday, increasing with tenure

Hybrid working model (2 days per week in the office)

20 Flex Days to work from anywhere in Europe

A strong engineering culture focused on ownership and impact