SDET Engineer in Kotlin Performance QA team

At JetBrains, code is our passion. We are a rapidly growing software development company on a mission to create the best development tools in the world. Our products help millions of developers worldwide be more productive and achieve better results faster. We work on challenging problems, collaborate with the brightest minds in the industry, and experiment with new and exciting technologies to deliver innovative solutions that make a real difference.

We are currently seeking a talented and ambitious SDET Engineer to join our Kotlin Performance QA team. Our goal in the Kotlin Ecosystem Department is to make performance easily trackable, helping developers identify degradations and conduct optimization research. For example, we are building a platform that processes and visualises developers benchmarks, providing advanced analytics.

While hands‑on performance testing experience is essential, the primary focus of this role will be on building and integrating tools to assist developers, rather than solely investigating issues. You should be passionate about software performance, highly motivated, and eager to learn and advance your career. This role offers a significant opportunity to influence the industry and contribute to the future of software development.

In This Role, You Will

• Collaborate with cross‑functional teams to share expertise and technology stacks in the process of performance testing tooling creation.
• Develop and maintain benchmark infrastructure, profiling tools, and testing frameworks to measure and analyze performance metrics.
• Help developers analyse complex performance issues and identify their root causes.
• Participate in code reviews and contribute to team discussions on performance‑related topics.

We Will Be Happy to Have You on Our Team if You

• Have a strong professional background, such as three or more years of experience in software development, automation testing, or performance engineering.
• Possess excellent problem‑solving skills.
• Show a good understanding of computer architecture, operating systems, algorithms, and concurrency.
• Are proficient in programming languages such as Java, Kotlin, Rust, C/C++, or similar.
• Have experience with performance analysis tools, such as profilers and benchmarking frameworks.
• Are familiar with monitoring visualisation tools, such as Grafana, Kibana or Datadog.
• Can communicate and collaborate proficiently in English.
• Are able to work effectively both as part of a team and independently.

Wed Be Especially Thrilled If You

• Have hands‑on experience developing or testing compilers, virtual machines and build tooling systems.
• Have experience developing or enhancing performance monitoring platforms or tools.
• Are familiar with low‑level system programming and memory management.
• Have experience with software performance optimisation.

How We Work

• A focus on innovation: We encourage experimentation and exploration, and we are always looking for new and better ways to develop software.
• Openness to community feedback: We engage with our customers both online and offline to learn about their needs and gain a deeper understanding of the problems they face.
• Our collaborative and inclusive culture: We value diversity, teamwork, and open communication. We believe that the best solutions come from working together and sharing ideas.
• Commitment to professional growth: We offer extensive mentorship opportunities, attendance at technical conferences, and different career advancement paths to align with your goals and accommodate your strengths.
• A low‑friction work environment: We believe in minimizing bureaucracy and red tape, so you can focus on doing your best work and making a meaningful impact.
• The opportunity to work on cutting‑edge technology: Our IDEs are used by millions of developers around the world, and we are constantly adding new features and support for emerging technologies.

If you are a highly motivated SDET engineer with a passion for optimizing software performance, we encourage you to apply for this exciting opportunity at JetBrains. Join our team and help us build the tools that empower developers to do their best work.