J

Staff Software Developer (Kotlin Libraries)

jetbrains•Technology
Berlin; Munich; RemoteFull-timeOn sitelast month

Muslim-Friendly Workplace Features

Framework: Remote work possible

Features are hints taken from the job posting, not confirmed commitments.

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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.

📌#LI-KT1

We are an equal opportunity employer

We know great ideas can come from anyone, anywhere. That’s why we do our best to create an open and inclusive workplace – one that welcomes everyone regardless of their background, identity, religion, age, accessibility needs, or orientation.

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Job overview

Posted
22 September 2026
Location
Berlin; Munich; Remote
Employment type
Full-time
Work model
On site

Company

J

jetbrains

Amsterdam, Netherlands; Belgrade, Serbia; Berlin, Germany; Limassol, Cyprus; London, Spain; Munich, Germany; Warsaw, Poland; Yerevan, Armenia
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Source

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