Senior Java Engineer - Low-Latency Trading Systems

Motion Recruitment; Philadelphia (Philadelphia County); On-site; USD 140,000 - 210,000; Full time

Job summary

Motion Recruitment is seeking a Senior Java Software Engineer to join its Core Markets team in Philadelphia. You will design, develop, and optimize high-performance Java systems supporting real-time trading with a deep focus on threading, memory management, and JVM internals.

You will work on low-latency, mission-critical platforms where milliseconds matter and reliability is paramount. Candidates should have strong problem-solving skills and experience delivering robust financial technology

Qualifications

• Strong Core Java experience
• Deep understanding of JVM internals & low-level concepts
• Experience with multithreading and concurrency
• Memory management and garbage collection expertise
• Proven ability to develop high-throughput, low-latency systems
• Strong software engineering and problem-solving skills
• Bachelor's degree in Computer Science or related field

Responsibilities

• Design, develop, optimize, and maintain high-performance Java systems for real-time trading
• Build scalable, low-latency trading applications
• Optimize performance, memory usage, and system throughput
• Work with concurrency, multithreading, and JVM internals
• Analyze and troubleshoot complex performance issues
• Write reliable, maintainable, thoroughly tested code
• Collaborate with engineers to improve system architecture and performance
• Support production trading systems in mission-critical environments
• Explore AI tools to improve automation and quality processes

Skills

Core Java

JVM internals

Multithreading & concurrency

Performance optimization

Memory management & GC

Troubleshooting

Problem solving

Education

Bachelor's degree in CS or related

Job description

Motion Recruitment is seeking a Senior Java Software Engineer to join its Core Markets team in Philadelphia. You will design, develop, and optimize high-performance Java systems supporting real-time trading with a deep focus on threading, memory management, and JVM internals.

You will work on low-latency, mission-critical platforms where milliseconds matter and reliability is paramount. Candidates should have strong problem-solving skills and experience delivering robust financial technology