# Staff Software Developer (Kotlin Libraries) at jetbrains

- Company: jetbrains
- Status: Open
- Workplace: Hybrid
- Location: Amsterdam, Netherlands; Belgrade, Serbia; Berlin, Germany; Limassol, Cyprus; London, United Kingdom; Madrid, Spain; Munich, Germany; Paphos, Cyprus; Prague, Czech Republic; Remote, Germany; Warsaw, Poland; Yerevan, Armenia
- Level: Staff
- Discipline: Engineering
- Employment: Full-time
- Posted: 2026-09-22
- Skills: Kotlin Libraries
- Apply: https://job-boards.eu.greenhouse.io/jetbrains/jobs/4979524101

## Description

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.
• 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 

More jetbrains roles: https://deviantjobs.com/companies/jetbrains