Do you love dissecting code to understand how it really works, and want to build tools that help millions of other developers trust theirs? About JetBrains We create intelligent software development tools for developers and teams. More than 15 million users, over 300,000 companies, and 88 of the Fortune General Top 100 rely on our products to solve real, complex problems. Our mission is simple: make development teams more productive and AI adoptable at scale.
As AI-assisted coding grows, the need for deep, static code analysis is more critical than ever.
In this role, you’ll join our Qodana Core team to expand our static analysis engine and design new algorithms for complex, inter-procedural code analysis. You will have direct ownership over how we configure and orchestrate these analyses across different environments. You’ll collaborate closely with other JetBrains compiler and IDE teams, directly influencing how development teams worldwide maintain code quality and adopt AI safely.
Design and implement new static analysis checks, rules, and inter-procedural analysis algorithms.




Optimize how code analysis runs, configure execution paths, and orchestrate performance based on project context.
Collaborate with compiler and IDE teams across JetBrains to share insights and align analysis engines.
A deep curiosity about code structure, compilers, and how static analysis works.
A focus on quality over quick fixes, valuing long-term maintainability in your work.
Experience with developer tooling, static analysis, application security, or LLM-based applications would be a plus. Familiarity with languages and ecosystems beyond the JVM – such as C++, Rust, JavaScript or TypeScript, Python, .NET, or Go – would also be valuable.
Deep, practical knowledge of JVM development (such as Kotlin or Java).
Experience designing and implementing complex algorithms or handling performance-critical backend architectures.
Fluent communication skills in English to collaborate with team member

📌 Senior Software Engineer, JavaScript (Madrid)
🏢 JetBrains
📍 Madrid