Backend Customer Success Engineer (Kotlin Ecosystem) -m/w/d

At JetBrains, code is our passion. Ever since we started, back in 2000, we have strived to make the strongest, most effective developer tools on earth. By automating routine checks and corrections, our tools speed up production, freeing developers to grow, discover, and create.

We’re now looking for a Customer Success Engineer (CSE) to help engineering teams successfully adopt Kotlin on the backend in real-world production environments.

Currently, this role is focused on adoption – helping Java teams introduce Kotlin into existing applications. You’ll work directly with organizations to guide migration, integration, troubleshooting, and scaling, ensuring they move from initial experiments to successful production use.

In addition, you’ll proactively communicate with prospective users to help them understand the Kotlin adoption process, as well as design and implement the migration path.

Responsibilities

Track and maintain visibility into organizations and their stage of Kotlin adoption (e.g., not started, evaluating, experimenting, production)
Proactively engage with organizations across different phases of their Kotlin adoption journey
Develop and recommend high-level adoption strategies tailored to each organization’s context
Identify and document blockers that hinder progress and propose ways to address them
Establish and manage feedback loops with development teams to ensure continuous alignment and improvement

We will be happy to have you on our team if you have

Technical expertise

Extensive hands-on experience with Kotlin, Java, and the JVM ecosystem

Proven experience migrating Java backend codebases to Kotlin

Experience with the Spring (Boot) ecosystem or similar frameworks (e.g., Quarkus, Micronaut, Ktor)

Solid understanding of build tools and project structuring, including Maven and Gradle

Communication and customer engagement

Experience in customer-facing technical roles such as Solutions Engineering, Developer Advocacy, or Technical Consulting

Strong English communication skills, both written and spoken

Ability to lead workshops, demos, talks, meetups, and other public-facing activities

Comfort with outbound engagement, including identifying target companies, articulating value propositions, and building relationships with engineering teams

Ability to effectively communicate with engineers, tech leads, and business stakeholders

System design and architecture

Ability to design and guide Kotlin adoption strategies for backend applications

Experience designing backend systems using common architectural patterns (e.g., monolith, modulith, microservices)

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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We are an equal opportunity employer

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