Staff Software Developer (Kotlin Libraries) (m/f/d)

Staff Software Developer (Kotlin Libraries) (m/f/d)

We are looking for an experienced developer to help us shape the future of the Kotlin ecosystem.

Responsibilities

• Create and maintain foundational libraries for Kotlin core primitives that are used by hundreds of thousands of developers
• Become an expert in specific domains of computer science and software engineering
• Be part of a design committee that decides how the Kotlin API should be shaped
• Participate in creating standard Kotlin tools, specifications and language features
• JVM development experience down to the implementation details of the Java standard library
• Strong understanding of the domain you've been working with
• Ability to write design documents for complex systems with strong reasoning behind each trade-off and technical decision
• Experience in performance engineering or API design

In general, if you see yourself reading a Unicode standard, exploring how five other languages transform strings to bytes, figuring out why some Oceania islands changed their timezone from ‑10:00 to +14:00 and whether it should be expressed in the API of Kotlin timezones, optimizing interface hierarchy to be more JIT‑friendly and is not afraid of re‑iterating over documentation a multitude of times, you won't get bored in our team.

Benefits

• Strong base salary. We offer competitive pay that reflects your skills and experience
• Flexible work location. Enjoy the freedom to work from home or from the office
• Remote work. Spend up to 30 days per year working remotely from abroad
• Extra time off. More days to relax, recharge, and do the things you love
• Medical insurance allowance. Enjoy peace of mind for you and your family
• Learning and development opportunities. Access to conferences, courses, and language classes
• Language classes. Pick up the local language or sharpen your English skills
• Fuel your day. Enjoy a hot meal or receive a lunch allowance on workdays
• Mental health support. To help you feel your best, we provide easy access to professional mental health services
• Sports benefit. Enjoy an on‑site gym or sports club stipend
• Internal events. Join company‑wide celebrations and team gatherings
• Mentorenprogramm/Coaching
• Firmenevents
• Kantine

*Some benefits may vary depending on location.