As part of our team, you will:
- 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

Preferable:
- 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.

Why join JetBrains?
- Strong base salary. We offer competitive pay that reflects your skills and experience.
- Versátil 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.
- Relocation support. We help make your move as smooth and stress-free as possible. (keep if relevant for the role)
- 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

📌 Staff Software Developer (España)
🏢 JetBrains
📍 España