Software Engineer (JVM performance optimization)

Are you prepared to join the X team and help build the ultimate real-time information-sharing app, revolutionizing how people connect? At X, we’re on a mission to become the trusted global digital public square, committed to protecting freedom of speech and building the future unlimited interactivity. Our goal is to empower every user to freely create and share ideas, fostering open public discourse without barriers. Join us in shaping this thrilling journey where your contribution will be invaluable to our success!

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About X:

We are seeking a highly skilled Software Engineer with deep expertise in Java Virtual Machine (JVM) to join our dynamic team. X is modernizing its tech stack and you will play a critical role in this process. This position is dedicated to enhancing our platform's performance, scalability, and reliability through advanced JVM management and optimization.

Job Description:

As a JVM Performance Optimization Engineer at X, you will play a critical role in our tech stack evolution. Your primary focus will be on optimizing Java and JVM usage across our entire fleet of services.

Key Responsibilities:

• JVM Tuning: Deep dive into JVM internals to optimize memory management, garbage collection strategies, and thread management for peak performance.

• Performance Analysis: Conduct thorough performance profiling and analysis to identify bottlenecks in Java applications running on JVM. Use tools like JProfiler, VisualVM, or custom profiling solutions.

• Modernization: Lead initiatives to modernize our use of Java and JVM technologies, including upgrading JVM versions, adopting new Java features, and integrating cutting-edge JVM configurations.

• Documentation & Education: Create and maintain documentation on best practices for JVM usage. Educate and mentor other engineers on JVM tuning and Java performance techniques.

• Monitoring & Alerting: Implement monitoring solutions to track JVM performance in production environments, setting up alerts for potential performance issues.

Skills & Qualifications:

• Technical Expertise:

  • Expert level Java programming skills.

  • Deep understanding of JVM internals, including but not limited to memory management, garbage collectors, JIT compilers, and class loading.

  • Proficiency with JVM configuration parameters and their impact on performance.

  • Experience with performance profiling tools and methodologies.

Nice to Have:

• Experience with other JVM languages like Kotlin or Scala.

• Contributions to open-source JVM or Java projects.

• Familiarity with modern Java frameworks and their JVM interactions.