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Jetbrains
Development 1h ago

Kotlin Core Developer

Jetbrains
AmsterdamAmsterdam
SerbiaSerbia
GermanyGermany
CyprusCyprus
United KingdomUnited Kingdom
SpainSpain
🌍Czechia
PolandPoland
ArmeniaArmenia
Full-time
Not Disclosed
Senior-Level

Job Description

Key Skills Required

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API DesignPerformance EngineeringKotlinJVM Development

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Core 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.

Preferred Qualifications:

Experience in JVM development down to the implementation details of the Java standard library.

A 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.

If you see yourself engaging in tasks like 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 Kotlin timezone API, optimizing interface hierarchy to be more JIT-friendly, and are not afraid of re-iterating over documentation multiple times, you won’t get bored in our team.

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JetBrains is a global technology company that specializes in the development of software development tools and technologies. With a strong mission to make developers' work easier, JetBrains focuses on creating innovative products that address the needs of software developers, data scientists, and other professionals. The company's culture emphasizes collaboration, innovation, and continuous learning, which are reflected in its diverse and dynamic work environment. JetBrains' tech stack is characterized by a wide range of products and tools, including IntelliJ IDEA, WebStorm, PyCharm, and Rider, that cater to different programming languages and development frameworks. Its flagship product, IntelliJ IDEA, is a comprehensive integrated development environment (IDE) that offers advanced code completion, debugging, and project management capabilities. Other notable products include Kotlin, a modern programming language designed to be more concise, safe, and interoperable with Java, and Space, a comprehensive platform for software development teams that integrates version control, project management, and communication tools. The company is committed to staying at the forefront of technology advancements, investing heavily in research and development, and partnering with leading technology companies, startups, and academic institutions to drive innovation and growth.

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