26 to 29 of 29 Performance Engineering Jobs in London

IR35 - Up to £500 day rate About the Role: We’re looking for a Senior Java Engineer with a passion for low-level, high-performance systems. If you enjoy squeezing out every microsecond of efficiency and building high-throughput, scalable applications, this could be your next immediate move. What … Designing and optimising event-driven, non-blocking I/O systems using Java NIO Working with ByteBuffers and direct memory access techniques for optimal performance Developing and maintaining custom binary protocols, ideally with experience in SBE (Simple Binary Encoding) Integrating and fine-tuning Aeron messaging in high-frequency, low … latency environments Conducting performance benchmarking using JMH and other micro-benchmarking tools Tuning JVMs for real-time applications, including GC tuning (ZGC, Shenandoah) and lock-free/wait-free structures Collaborating closely with architecture teams to ensure garbage-free, latency-critical design What We’re Looking For Core Low More ❯

IR35 - Up to £500 day rate About the Role: We’re looking for a Senior Java Engineer with a passion for low-level, high-performance systems. If you enjoy squeezing out every microsecond of efficiency and building high-throughput, scalable applications, this could be your next immediate move. What … Designing and optimising event-driven, non-blocking I/O systems using Java NIO Working with ByteBuffers and direct memory access techniques for optimal performance Developing and maintaining custom binary protocols, ideally with experience in SBE (Simple Binary Encoding) Integrating and fine-tuning Aeron messaging in high-frequency, low … latency environments Conducting performance benchmarking using JMH and other micro-benchmarking tools Tuning JVMs for real-time applications, including GC tuning (ZGC, Shenandoah) and lock-free/wait-free structures Collaborating closely with architecture teams to ensure garbage-free, latency-critical design What We’re Looking For Core Low More ❯

cutting edge of AI innovation. Act as a technical leader and subject matter expert in quality assurance practices, test automation, and tooling across the engineering team. Identify systemic quality issues and process bottlenecks, proposing and leading initiatives to improve development lifecycle efficiency, test effectiveness, and overall product quality. Collaborate … with peers across engineering and product to define, align on, and advocate for consistent quality standards, best practices, and effective testing approaches. Pioneer and champion the adoption of new testing tools, technologies, and methodologies to enhance quality practices and team productivity. Keep a high bar for technical excellence in … performant, high-load frontend applications Previous experience in a Software Development role Experience testing an application relying heavily on event-driven architecture Expertise in Performance Engineering and tools: Beyond just running tests, understanding profiling & bottleneck analysis Experience in and enjoyment of early stage/startup environments 🙌 What’s More ❯

cutting edge of AI innovation. Act as a technical leader and subject matter expert in quality assurance practices, test automation, and tooling across the engineering team. Identify systemic quality issues and process bottlenecks, proposing and leading initiatives to improve development lifecycle efficiency, test effectiveness, and overall product quality. Collaborate … with peers across engineering and product to define, align on, and advocate for consistent quality standards, best practices, and effective testing approaches. Pioneer and champion the adoption of new testing tools, technologies, and methodologies to enhance quality practices and team productivity. Keep a high bar for technical excellence in … performant, high-load frontend applications Previous experience in a Software Development role Experience testing an application relying heavily on event-driven architecture Expertise in Performance Engineering and tools: Beyond just running tests, understanding profiling & bottleneck analysis Experience in and enjoyment of early stage/startup environments 🙌 What’s More ❯