Senior Software Engineer​/L7 Tech Lead; Developer

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?

This role requires 2 days a week in our Munich or Dublin office
.Join us to shape the future of software in the underserved and high-impact HR technology industry. Your work will have a direct and tangible impact on customers, offering ownership and the chance to make a meaningful difference. As we prepare for significant growth, you'll face exciting challenges and have the opportunity to influence our path toward becoming one of the world's leading tech companies.

As a Senior Staff Software Engineer (Technical Lead) in Developer Experience (DX), you'll set organization-wide technical direction for developer productivity across Personio's entire engineering stack with an AI first mindset - from backend services in Kotlin and Java, through protos, gRPC, Kafka and GraphQL, to CI/CD and build systems, across our frontend and Node.js, React, Type Script and PHP ecosystems
. You'll be a technical multiplier: not managing people, but shaping how hundreds of engineers build, test, and ship software every day. This is a hands-on, deeply technical role. You'll pair architectural judgment with the credibility to drive change across teams that don't report to you — reducing friction across the full software development lifecycle (SDLC),
scaling CI/CD and build infrastructure
, defining and improving testing capabilities
, and bringing AI-powered tooling safely into everyday engineering work. It’s not enough to just have opinions on a good developer experience, you’ll need the judgement and experience to drive adoption of those standards.

• Own the technical strategy for DX: simplify the stack and data flow, and architect how CI/CD, build orchestration, testing frameworks, and underlying tooling evolve together.

• Act as a technical multiplier — aligning disparate engineering groups, establishing company-wide best practices, and driving complex, multi-team initiatives without direct authority.

• Mentor senior and staff-level engineers across DX and partner teams, raising the technical bar org-wide.

• Own the technical direction for CI/CD pipelines, build orchestration, and release automation across a polyglot codebase (Kotlin, Java, Type Script, PHP) to increase developer productivity.

• Streamline the local development inner loop, testing frameworks (including end-to-end testing), and CI feedback cycles to accelerate how quickly engineers can ship safely.

• Evaluate and evolve our Git Hub-based workflows, tooling, and stacks to keep pace with engineering growth.

• Provide technical leadership on the backbone of service-to-service communication: proto/gRPC contracts, API evolution, and Kafka-based eventing patterns that underpin our microservices architecture.

• Partner with backend platform and product-domain teams to define standards for API design, versioning, backward compatibility, and resilience.

• Provide technical direction for the frontend developer experience:
  Node.js tooling, React and Type Script frameworks, shared component and build tooling, and the developer-facing surface of our frontend platform.

• Ensure frontend and backend DX investments are coherent, shared standards for testing, tooling, and release practices regardless of language or stack.

• Lead the safe, scaled integration…