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!
Job Title: Performance Engineer (JVM)
Location: Palo Alto, CA; New York, NY; Remote
Base Salary Range: $127,000 to $297,000 USD
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About X:
We are seeking a highly skilled Performance 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 Performance Engineer for JVM Tuning & Performance Optimization 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:
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JVM Tuning: Deep dive into JVM internals to optimize memory management, garbage collection strategies, and thread management for peak performance.
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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.
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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.
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Documentation & Education: Create and maintain documentation on best practices for JVM usage. Educate and mentor other engineers on JVM tuning and Java performance techniques.
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Monitoring & Alerting: Implement monitoring solutions to track JVM performance in production environments, setting up alerts for potential performance issues.
Skills & Qualifications:
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Technical Expertise:
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Expert level Java programming skills.
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Deep understanding of JVM internals, including but not limited to memory management, garbage collectors, JIT compilers, and class loading.
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Proficiency with JVM configuration parameters and their impact on performance.
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Experience with performance profiling tools and methodologies.
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Nice to Have:
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Experience with other JVM languages like Kotlin or Scala.
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Contributions to open-source JVM or Java projects.
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Familiarity with modern Java frameworks and their JVM interactions.
Top Skills
What We Do
We serve the public conversation. We believe real change starts with conversation. That’s why it matters to us that people have a free and safe space to talk. We put people first. Be you, really. That’s how we build trust. Together we’re creating a culture that’s supportive, respectful, and a pretty cool vibe. Sure, we’re not perfect, we’re people. But we’re open and honest about who we are and what we do.
Why Work With Us
Life’s not about a job, it’s about purpose. We believe real change starts with conversation. Here, your voice matters. Come as you are and together we’ll do what’s right (not what’s easy) to serve the public conversation.
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