401 to 425 of 559 Performance Tuning Jobs in England

To apply software engineering techniques, automation, and best practices in incident response, to ensure the reliability, availability, and scalability of the systems, platforms, and technology through them. Accountabilities Availability, performance, and scalability of systems and services through proactive monitoring, maintenance, and capacity planning. Resolution, analysis and response to system outages and disruptions, and implement measures to prevent similar incidents … from recurring. Development of tools and scripts to automate operational processes, reducing manual workload, increasing efficiency, and improving system resilience. Monitoring and optimisation of system performance and resource usage, identify and address bottlenecks, and implement best practices for performance tuning. Collaboration with development teams to integrate best practices for reliability, scalability, and performance into the software development … using well developed professional knowledge and skills to deliver on work that impacts the whole business function. Set objectives and coach employees in pursuit of those objectives, appraisal of performance relative to objectives and determination of reward outcomes If the position has leadership responsibilities, People Leaders are expected to demonstrate a clear set of leadership behaviours to create an More ❯

To apply software engineering techniques, automation, and best practices in incident response, to ensure the reliability, availability, and scalability of the systems, platforms, and technology through them. Accountabilities Availability, performance, and scalability of systems and services through proactive monitoring, maintenance, and capacity planning. Resolution, analysis and response to system outages and disruptions, and implement measures to prevent similar incidents … from recurring. Development of tools and scripts to automate operational processes, reducing manual workload, increasing efficiency, and improving system resilience. Monitoring and optimisation of system performance and resource usage, identify and address bottlenecks, and implement best practices for performance tuning. Collaboration with development teams to integrate best practices for reliability, scalability, and performance into the software development … using well developed professional knowledge and skills to deliver on work that impacts the whole business function. Set objectives and coach employees in pursuit of those objectives, appraisal of performance relative to objectives and determination of reward outcomes If the position has leadership responsibilities, People Leaders are expected to demonstrate a clear set of leadership behaviours to create an More ❯

optimise their backend services. This is a hands-on role with scope to take ownership across the full software lifecycle; from design and development to testing, deployment, and ongoing performance tuning. You’ll be working as part of a cross-functional team alongside product managers, designers, and engineers across the stack. The engineering culture is pragmatic, fast-paced, and … What you’ll do: Collaborate with product and design teams to define and implement technical solutions Write clean, efficient, and reusable code to support long-term platform evolution Optimise performance and ensure reliability of backend systems Contribute to testing, CI/CD workflows, and release processes Stay current with modern backend practices and bring ideas to the table Benefits More ❯

optimise their backend services. This is a hands-on role with scope to take ownership across the full software lifecycle; from design and development to testing, deployment, and ongoing performance tuning. You’ll be working as part of a cross-functional team alongside product managers, designers, and engineers across the stack. The engineering culture is pragmatic, fast-paced, and … What you’ll do: Collaborate with product and design teams to define and implement technical solutions Write clean, efficient, and reusable code to support long-term platform evolution Optimise performance and ensure reliability of backend systems Contribute to testing, CI/CD workflows, and release processes Stay current with modern backend practices and bring ideas to the table Benefits More ❯

optimise their backend services. This is a hands-on role with scope to take ownership across the full software lifecycle; from design and development to testing, deployment, and ongoing performance tuning. You’ll be working as part of a cross-functional team alongside product managers, designers, and engineers across the stack. The engineering culture is pragmatic, fast-paced, and … What you’ll do: Collaborate with product and design teams to define and implement technical solutions Write clean, efficient, and reusable code to support long-term platform evolution Optimise performance and ensure reliability of backend systems Contribute to testing, CI/CD workflows, and release processes Stay current with modern backend practices and bring ideas to the table Benefits More ❯

engineers, and business stakeholders to ensure seamless data workflows. Work with Snowflake to manage and optimise cloud-based data warehouse solutions. Ensure high standards of data quality, governance, and performance tuning. Provide documentation and best practices to support ongoing data initiatives. Essential Skills & Experience: Proven experience as an Analytics Engineer or Data Engineer with a strong focus on DBT More ❯

Maintenance: * Provide ongoing support for SAP PLM Document Management and the config and maintenance of WWI Reports * Troubleshoot and resolve system issues and user inquiries. * Perform system monitoring and performance tuning. * Apply SAP notes and support packages as needed. 7. Documentation and Communication: * Create and maintain comprehensive documentation, including functional specifications, configuration guides, and user manuals. * Communicate effectively with More ❯

Mainframe Performance QA Engineer BCP Special Pool IRC248855 Job: IRC248855 Location: United Kingdom - London Designation: Lead Test Engineer Experience: 5-10 years Function: Quality Assurance Skills: DB2, IBM IMS, JCL, Performance testing/tuning, z/OS Work Model: Remote, Hybrid The client is a world-leading provider of telecommunication solutions to mobile & fixed network operators. GlobalLogic … telecom operators. Requirements: At least 5 years of hands-on experience: Good knowledge of IMS (log (IMS type 07 and Type 56FA) and ABEND analysis, DC Monitor (DFSUTR20), STROBE, Performance Analyzer, IMSASAP/GPAR, ability to read SYSUDUMPs, etc.) Performance tuning techniques: OS (z/OS,) Database (IMS, DB2) with focus on IMS tuning Strong expertise … in performance testing and tuning Strong technical QA experience Excellent skills in defining, documenting, and analyzing test strategy, test plan, test cases, and test results Excellent test case execution and troubleshooting skills Testing proficiency (release-specific testing, regression testing) Testing in a Waterfall environment Manual and automated testing (online and batch) Debugging skills and problem-solving abilities to More ❯

Cross-Training Opportunity in Performance Testing – Get Paid to Upskill! Are you ready to pivot into a rewarding career in performance testing with one of the industry’s most prestigious clients? We’re offering a paid 8–10 week cross-training program , followed by a 2-year full-time placement where you’ll apply your new skills on … real-world enterprise systems. 🌟 What You’ll Learn & Do: As part of this program, you’ll be trained and placed into a performance testing role where you will: Use tools like JMeter , LoadRunner , or similar to simulate high loads on REST applications. Manage Load and Stress Testing across web, REST, and standalone Java applications. Write and manage load test … scripts using Python , Groovy , or similar scripting languages. Create and maintain bulk test data to support a variety of performance testing scenarios. ✅ Preferred Skills: Candidates with the following experience will thrive in the program: API Testing using REST/SOAP and standalone Java APIs. Familiarity with Cucumber , Selenium , and other automation frameworks. Strong Java programming skills to build and More ❯

Engineer Location: London/hybrid Salary: Up to £280k base + Benefits Our client is a global leader focused on delivering mission-critical, low latency infrastructure solutions for high-performance trading environments. They are looking for a highly skilled Platform Specialist to join their talented team and ensure the highest levels of availability, performance, and security across their … low latency platform. In this role, you will: Design, document, and enhance platform services including servers, storage, and cloud infrastructure. Provide L3 escalation support to troubleshoot and remediate performance and availability issues. Collaborate with internal and external partners including network, application, quant, and business teams to deliver scalable solutions. Proactively identify potential system bottlenecks and implement performance tuning … differences (Intel, AMD, ARM). Automate operational workflows and scripting using Python, Rust, or Bash. The ideal candidate will have: 8+ years experience in Linux system operations, engineering, or performance tuning in enterprise or trading environments. Experience with High Performance Computing (HPC) Deep understanding of network protocols (TCP, UDP, multicast) and low latency networking principles. Hands-on More ❯

Engineer Location: London/hybrid Salary: Up to £280k base + Benefits Our client is a global leader focused on delivering mission-critical, low latency infrastructure solutions for high-performance trading environments. They are looking for a highly skilled Platform Specialist to join their talented team and ensure the highest levels of availability, performance, and security across their … low latency platform. In this role, you will: Design, document, and enhance platform services including servers, storage, and cloud infrastructure. Provide L3 escalation support to troubleshoot and remediate performance and availability issues. Collaborate with internal and external partners including network, application, quant, and business teams to deliver scalable solutions. Proactively identify potential system bottlenecks and implement performance tuning … differences (Intel, AMD, ARM). Automate operational workflows and scripting using Python, Rust, or Bash. The ideal candidate will have: 8+ years experience in Linux system operations, engineering, or performance tuning in enterprise or trading environments. Experience with High Performance Computing (HPC) Deep understanding of network protocols (TCP, UDP, multicast) and low latency networking principles. Hands-on More ❯

Engineer Location: London/hybrid Salary: Up to £280k base + Benefits Our client is a global leader focused on delivering mission-critical, low latency infrastructure solutions for high-performance trading environments. They are looking for a highly skilled Platform Specialist to join their talented team and ensure the highest levels of availability, performance, and security across their … low latency platform. In this role, you will: Design, document, and enhance platform services including servers, storage, and cloud infrastructure. Provide L3 escalation support to troubleshoot and remediate performance and availability issues. Collaborate with internal and external partners including network, application, quant, and business teams to deliver scalable solutions. Proactively identify potential system bottlenecks and implement performance tuning … differences (Intel, AMD, ARM). Automate operational workflows and scripting using Python, Rust, or Bash. The ideal candidate will have: 8+ years experience in Linux system operations, engineering, or performance tuning in enterprise or trading environments. Experience with High Performance Computing (HPC) Deep understanding of network protocols (TCP, UDP, multicast) and low latency networking principles. Hands-on More ❯

now scaling our operations in London. Our work environment rewards innovation, speed, and bold thinking. The role We’re hiring Senior and Staff Software Engineers to build the high-performance computing infrastructure that powers our Optical Tensor Processing Units (OTPUs). This isn’t just about scaling models—it’s about rethinking how AI workloads are executed at speed … hardware and ML teams to optimise every layer of the stack—from model representation and execution to data movement and scheduling. Whether it’s through compiler techniques, systems-level tuning, or custom runtime design, you’ll play a critical role in shaping the performance layer of our AI platform. This is a role for engineers who think in … just model accuracy. If you’ve worked in HFT, large-scale scientific compute, or AI infrastructure at serious scale, we’d love to talk. Responsibilities Design and build high-performance systems for running AI/ML workloads across distributed compute clusters Optimise for ultra-low latency and real-time inference at scale—profiling, tuning, and rewriting critical systems More ❯

now scaling our operations in London. Our work environment rewards innovation, speed, and bold thinking. The role We’re hiring Senior and Staff Software Engineers to build the high-performance computing infrastructure that powers our Optical Tensor Processing Units (OTPUs). This isn’t just about scaling models—it’s about rethinking how AI workloads are executed at speed … hardware and ML teams to optimise every layer of the stack—from model representation and execution to data movement and scheduling. Whether it’s through compiler techniques, systems-level tuning, or custom runtime design, you’ll play a critical role in shaping the performance layer of our AI platform. This is a role for engineers who think in … just model accuracy. If you’ve worked in HFT, large-scale scientific compute, or AI infrastructure at serious scale, we’d love to talk. Responsibilities Design and build high-performance systems for running AI/ML workloads across distributed compute clusters Optimise for ultra-low latency and real-time inference at scale—profiling, tuning, and rewriting critical systems More ❯

Mainframe Architect Salary: Upwards from £120,000 per annum + performance-related bonus Location : London-based (hybrid), with flexibility for occasional travel to client sites. The Role We are seeking an experienced Mainframe Architect to lead the design, implementation, and modernisation of mission-critical mainframe solutions for high-profile clients. This role is pivotal in bridging business requirements with … cutting-edge technology, ensuring seamless integration, scalability, and performance across complex enterprise environments. As a Mainframe Architect , you will be responsible for crafting tailored mainframe database architectures, working closely with stakeholders to define solutions that align with both client needs and industry best practices. You will oversee the technical execution of projects from inception to delivery, ensuring efficiency, security … and performance optimization. This is a strategic leadership role that requires both deep technical expertise and the ability to communicate complex solutions to technical and non-technical stakeholders alike. Key Responsibilities Define, design, and implement high-performance, scalable mainframe database solutions . Lead modernization initiatives , integrating mainframe databases into hybrid cloud environments. Collaborate with clients, governance teams, delivery More ❯

Mainframe Architect Salary: Upwards from £120,000 per annum + performance-related bonus Location : London-based (hybrid), with flexibility for occasional travel to client sites. The Role We are seeking an experienced Mainframe Architect to lead the design, implementation, and modernisation of mission-critical mainframe solutions for high-profile clients. This role is pivotal in bridging business requirements with … cutting-edge technology, ensuring seamless integration, scalability, and performance across complex enterprise environments. As a Mainframe Architect , you will be responsible for crafting tailored mainframe database architectures, working closely with stakeholders to define solutions that align with both client needs and industry best practices. You will oversee the technical execution of projects from inception to delivery, ensuring efficiency, security … and performance optimization. This is a strategic leadership role that requires both deep technical expertise and the ability to communicate complex solutions to technical and non-technical stakeholders alike. Key Responsibilities Define, design, and implement high-performance, scalable mainframe database solutions . Lead modernization initiatives , integrating mainframe databases into hybrid cloud environments. Collaborate with clients, governance teams, delivery More ❯

A leading proprietary trading are looking to hire a C++ developer. In this role, you’ll work on high-performance systems that power the real-time trading strategies. You’ll collaborate closely with traders, quants, and other engineers to build scalable, ultra-low-latency software that delivers real results. Key Responsibilities Design, develop, and maintain performance-critical C++ … for trading systems Optimize code for low-latency and high-throughput environments Collaborate with traders to understand requirements and translate them into efficient solutions Contribute to system architecture and performance tuning Ensure reliability and stability of systems through rigorous testing and monitoring What We're Looking For 3+ years of professional experience with modern C++ (C++14/…/20) Strong understanding of algorithms, data structures, and multithreading Experience in performance optimization and systems programming Familiarity with Linux environments and low-level networking is a plus Ability to work autonomously and in a team Excellent problem-solving skills and a passion for clean, efficient code Prior experience in finance or trading is a bonus but not required More ❯

A leading proprietary trading are looking to hire a C++ developer. In this role, you’ll work on high-performance systems that power the real-time trading strategies. You’ll collaborate closely with traders, quants, and other engineers to build scalable, ultra-low-latency software that delivers real results. Key Responsibilities Design, develop, and maintain performance-critical C++ … for trading systems Optimize code for low-latency and high-throughput environments Collaborate with traders to understand requirements and translate them into efficient solutions Contribute to system architecture and performance tuning Ensure reliability and stability of systems through rigorous testing and monitoring What We're Looking For 3+ years of professional experience with modern C++ (C++14/…/20) Strong understanding of algorithms, data structures, and multithreading Experience in performance optimization and systems programming Familiarity with Linux environments and low-level networking is a plus Ability to work autonomously and in a team Excellent problem-solving skills and a passion for clean, efficient code Prior experience in finance or trading is a bonus but not required More ❯

support and troubleshooting.Integration Management: Develop and manage integrations between Endur and other systems to ensure smooth data exchange and system functionality.Performance Optimization: Monitor and optimize Endur applications to improve performance and operational efficiency.Technical Documentation: Create and maintain detailed documentation for technical designs, configurations, and customizations.Collaboration: Collaborate with other developers, consultants, and project managers to ensure successful project delivery.Best Practices … support and troubleshooting.Integration Management: Develop and manage integrations between Endur and other systems to ensure smooth data exchange and system functionality.Performance Optimization: Monitor and optimize Endur applications to improve performance and operational efficiency.Technical Documentation: Create and maintain detailed documentation for technical designs, configurations, and customizations.Collaboration: Collaborate with other developers, consultants, and project managers to ensure successful project delivery.Best Practices … languages, such as Endur Scripting Language (ESL), JVS, OC etc or other relevant technologies.Integration Skills: Experience with integrating Endur with other systems using APIs, web services, or other methods.Performance Tuning: Expertise in performance tuning techniques for Endur applications.Technical Documentation: Ability to produce comprehensive technical documentation for solutions, configurations, and customizations.Problem-Solving: Strong analytical and problem-solving skills More ❯

C++ Trading Platform Developer – High-Performance Crypto Trading Location: London One of the largest crypto-native algorithmic trading firms globally is seeking a C++ Developer to join its global trading platform team. The firm provides algorithmic liquidity across major crypto exchanges and supports some of the most innovative projects in DeFi and digital assets. As a C++ Developer … how C++ standard libraries work Experience with networking, memory models, CPU architecture, or assembly (a plus) Curious mindset with a desire to understand systems end-to-end Passion for performance tuning and building resilient infrastructure This opportunity offers a highly competitive compensation package and hybrid working model. More ❯

C++ Trading Platform Developer – High-Performance Crypto Trading Location: London One of the largest crypto-native algorithmic trading firms globally is seeking a C++ Developer to join its global trading platform team. The firm provides algorithmic liquidity across major crypto exchanges and supports some of the most innovative projects in DeFi and digital assets. As a C++ Developer … how C++ standard libraries work Experience with networking, memory models, CPU architecture, or assembly (a plus) Curious mindset with a desire to understand systems end-to-end Passion for performance tuning and building resilient infrastructure This opportunity offers a highly competitive compensation package and hybrid working model. More ❯

C++ Trading Platform Developer – High-Performance Crypto Trading Location: London One of the largest crypto-native algorithmic trading firms globally is seeking a C++ Developer to join its global trading platform team. The firm provides algorithmic liquidity across major crypto exchanges and supports some of the most innovative projects in DeFi and digital assets. As a C++ Developer … how C++ standard libraries work Experience with networking, memory models, CPU architecture, or assembly (a plus) Curious mindset with a desire to understand systems end-to-end Passion for performance tuning and building resilient infrastructure This opportunity offers a highly competitive compensation package and hybrid working model. More ❯

This is a new role owing to recent success and growth for their diverse portfolio of products and services. You will be responsible for optimizing, managing, and scaling high-performance computing (HPC) environments. Our client are at the forefront of innovation, driving the boundaries of what's possible with high-performance computing. Their team of visionary minds and … they are the driving force behind breakthrough discoveries. Responsibilities will include: -You'll be the backbone of their computational infrastructure. Your expertise will power their supercomputing clusters, ensuring seamless performance, reliability, and scalability. -Designing, deploying, and maintaining HPC clusters for optimal performance and resource utilization. -Crafting and implementing monitoring solutions to identify and address potential issues proactively. -Collaborating … with researchers, engineers, and developers to optimize application performance and parallel computing efficiency. -Troubleshooting and resolving system, network, and software problems to keep operations running smoothly. -Implementing security measures to protect sensitive data and maintain compliance with industry standards. -Keeping abreast of the latest advancements in HPC, Linux, and virtualization technologies to drive continuous improvement. Technical and soft skills More ❯

a cloud first organisation and make extensive use of SaaS, IaaS, PaaS solutions. You'll be staying ahead of key developments and continuously committing to improvements through automation and performance tuning methods. What you'll be doing: Provide expert-level support to customers using the SJP Data Platform technologies Incident resolution for the platform Proactive monitoring and maintenance … candidate will also have a growth mindset, eager to stay updated on industry trends and share knowledge with the team. Expertise in Snowflake and/or Matillion platforms including performance tuning, automation, security & procedures Experience working within a cloud first environment handling data platforms such as SaaS IaaS & PaaS Demonstrable experience of incident management, diagnosis and resolving complex … SJP locations What's in it for you? We reward youfor the work you do, whether that's through our discretionary annual bonus scheme that reflects bothpersonal and company performance, competitive annual leave allowance (28 daysplus bank holidays, with the option to purchase an additional 5 days), oronline rewards platform with a variety of discounts. We also havebenefits to More ❯

to define and build robust backend architectures. Work with Node.js and TypeScript to integrate backend services with modern web applications. Drive best practices around system design, code quality, and performance monitoring. Mentor junior engineers, providing technical guidance and support to ensure quality across the engineering team. What You’ll Bring: 5+ years of experience in backend development, with deep … architectures. Strong familiarity with cloud platforms, containerization (e.g., Docker, Kubernetes), and CI/CD pipelines. A passion for writing clean, maintainable code and delivering high-quality products. Experience in performance tuning, scalability, and systems optimization. Excellent communication skills and a collaborative mindset. What’s on Offer: Fully remote work with flexible hours to help you thrive no matter More ❯