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Verified from career page · Posted 1w ago

JetBrains

Staff Software Developer (Kotlin Libraries)

JetBrains · Kotlin Libraries

Amsterdam

Staff

SoftwareKotlinJava

Last seen 4h ago

Posted
1w ago

Posted on 22 September 2026

Workplace
Remote

Work model: Remote

Salary
Not disclosed

Salary range not shared by the company

Visa sponsorship
Not specified

Visa sponsorship details unknown

This role has closed. It's kept as a record — see JetBrains's open roles or the similar live roles below.

See JetBrains's open roles

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 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 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.

*Some benefits may vary depending on location.

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About JetBrains

JetBrains builds developer tools from Amsterdam, Belgrade, Berlin, Munich and Prague. Unusual among tool vendors in that its engineers build what they themselves use daily.

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