Java Performance Optimization Specialist
2 weeks ago
WSN is seeking a seasoned Java expert with a strong background in threading, memory management, and performance tuning.
The ideal candidate understands the subtleties of Java's memory model, including pointer-like references, and can effectively profile and optimize Java applications to ensure top-tier performance.
This role demands deep technical expertise in threading, concurrency, and JVM internals to address performance challenges in critical systems.
Key Responsibilities: Threading Optimization: Diagnose and resolve threading issues, including deadlocks, race conditions, and contention, to enhance application responsiveness and stability.
Memory Management: Optimize memory allocation strategies, reduce garbage collection overhead, and fine-tune applications for efficient memory usage.
JVM Tuning: Profile JVM behavior (e.g., garbage collection, JIT compilation, and memory usage) and adjust settings to maximize performance.
Performance Profiling: Use tools like JProfiler, YourKit , and VisualVM to identify bottlenecks and inefficiencies in multi-threaded Java applications.
System-Level Optimization: Optimize the interaction between Java applications and the Linux OS , focusing on I/O, scheduling, and resource management.
Best Practice Implementation: Collaborate with development teams to implement threading-safe patterns, optimize locking mechanisms, and improve code efficiency.
Technical Documentation: Produce clear, detailed reports of performance issues, solutions, and recommended best practices.
Team Mentorship: Share knowledge and guide teams on threading, memory management, and performance tuning best practices.
Qualifications: Extensive experience in threading and concurrency in Java, including synchronization, lock-free programming, and thread pool management.
Strong understanding of Java's memory model , including reference handling, memory leaks, and garbage collection tuning.
Deep expertise in JVM internals , including heap and stack management, JIT optimization, and GC algorithms.
Proficient in Java profiling tools (e.g., JProfiler, YourKit) and performance monitoring frameworks.
Hands-on experience optimizing Java applications in a Linux environment , with an understanding of OS-level factors that impact performance.
Excellent problem-solving skills with a data-driven approach to diagnosing and resolving performance bottlenecks.
Strong communication skills, with the ability to explain complex concepts to technical and non-technical stakeholders.
Prior experience in cross-regional collaboration is a plus.
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