About the role

Senior Platform Engineer enhancing developer productivity at Personio through platform solutions and collaboration. Join our team to shape the future of HR technology in Germany's vibrant tech scene.

Responsibilities

Design and support platform solutions that empower 300+ developers across 40+ product teams (e.g., internal tooling, standards, SDKs, and middleware that improve developer workflows)
Build and evolve our GraphQL middleware layer that connects frontends with backend services
Create internal tools and libraries/SDKs to enhance developer productivity and platform adoption
Establish standards and best practices for API design, service integration, and platform usage across the organization
Analyze and optimize platform systems to enhance scale, performance, reliability, and developer experience
Work hand-in-hand with product teams to ensure seamless platform integration and a strong feedback loop
Document platform capabilities and run internal training sessions
Collaborate with cross-functional teams within Foundations to create a coherent developer platform
Drive technical excellence by simplifying platform architecture and managing technical debt
Take ownership of operational responsibilities for platform services, including on-call participation

5+ years of experience in platform engineering and/or backend development
Strong programming skills in a JVM language (e.g., Kotlin, Java, Scala); Kotlin is a bonus
Experience building production-grade backend systems with attention to reliability, performance, and maintainability
A strong engineering mindset for enabling other teams: you enjoy reducing friction, improving 'paved roads,' and raising standards through tooling and automation
Experience with modern engineering practices for high-availability platforms, including testing strategies, performance optimization, and reliability considerations
Demonstrated impact in establishing observability practices and instrumenting platforms for monitoring and debugging
You are data-driven and passionate about using metrics to evaluate platform performance and adoption
Strong communication skills, with the ability to build relationships across teams and influence technical decisions at scale
Comfortable working in a highly collaborative environment, engaging in code reviews, pair programming, and cross-team discussions
Willingness to be on-call and take ownership of operational responsibilities for platform services.

Enjoy 28 days of paid vacation, plus an additional day after 2 and 4 years.
Make an impact on the environment and society with 1 (fully paid) Impact Day.
Receive generous family leave, child support, mental health support (including 24 sessions per year with Oli for yourself and 10 sessions for a significant other), and sabbatical opportunities.
We enjoy gathering for meals, cultural initiatives, and events like local Summer Sessions and year-end celebrations. There's also healthy snacks, drinks, and a weekly catered lunch.