276 to 300 of 349 Remote Performance Tuning Jobs

z/OS Systems Programmer (Mainframe) - Fully Remote We are looking for an experienced z/OS Systems Programmer to join our team, supporting the migration, installation, maintenance, and performance optimisation of IBM z/OS environments. This role is critical to ensuring reliability, security, and efficiency across our Mainframe infrastructure, while contributing to modernisation and compliance initiatives. Responsibilities … Install, configure, and maintain z/OS, JES2, SMP/E, and RACF Manage system patches, upgrades, and performance tuning Troubleshoot and resolve complex Mainframe systems issues Support integrations, migrations, and deployments across the platform Ensure adherence to security policies and regulatory compliance Collaborate with technical teams to deliver efficient and secure solutions Key Skills & Experience Strong experience More ❯

z/OS Systems Programmer (Mainframe) - Fully Remote We are looking for an experienced z/OS Systems Programmer to join our team, supporting the migration, installation, maintenance, and performance optimisation of IBM z/OS environments. This role is critical to ensuring reliability, security, and efficiency across our Mainframe infrastructure, while contributing to modernisation and compliance initiatives. Responsibilities … Install, configure, and maintain z/OS, JES2, SMP/E, and RACF Manage system patches, upgrades, and performance tuning Troubleshoot and resolve complex Mainframe systems issues Support integrations, migrations, and deployments across the platform Ensure adherence to security policies and regulatory compliance Collaborate with technical teams to deliver efficient and secure solutions Key Skills & Experience Strong experience More ❯

z/OS Systems Programmer (Mainframe) - Fully Remote We are looking for an experienced z/OS Systems Programmer to join our team, supporting the migration, installation, maintenance, and performance optimisation of IBM z/OS environments. This role is critical to ensuring reliability, security, and efficiency across our Mainframe infrastructure, while contributing to modernisation and compliance initiatives. Responsibilities … Install, configure, and maintain z/OS, JES2, SMP/E, and RACF Manage system patches, upgrades, and performance tuning Troubleshoot and resolve complex Mainframe systems issues Support integrations, migrations, and deployments across the platform Ensure adherence to security policies and regulatory compliance Collaborate with technical teams to deliver efficient and secure solutions Key Skills & Experience Strong experience More ❯

z/OS Systems Programmer (Mainframe) - Fully Remote We are looking for an experienced z/OS Systems Programmer to join our team, supporting the migration, installation, maintenance, and performance optimisation of IBM z/OS environments. This role is critical to ensuring reliability, security, and efficiency across our Mainframe infrastructure, while contributing to modernisation and compliance initiatives. Responsibilities … Install, configure, and maintain z/OS, JES2, SMP/E, and RACF Manage system patches, upgrades, and performance tuning Troubleshoot and resolve complex Mainframe systems issues Support integrations, migrations, and deployments across the platform Ensure adherence to security policies and regulatory compliance Collaborate with technical teams to deliver efficient and secure solutions Key Skills & Experience Strong experience More ❯

z/OS Systems Programmer (Mainframe) - Fully Remote We are looking for an experienced z/OS Systems Programmer to join our team, supporting the migration, installation, maintenance, and performance optimisation of IBM z/OS environments. This role is critical to ensuring reliability, security, and efficiency across our Mainframe infrastructure, while contributing to modernisation and compliance initiatives. Responsibilities … Install, configure, and maintain z/OS, JES2, SMP/E, and RACF Manage system patches, upgrades, and performance tuning Troubleshoot and resolve complex Mainframe systems issues Support integrations, migrations, and deployments across the platform Ensure adherence to security policies and regulatory compliance Collaborate with technical teams to deliver efficient and secure solutions Key Skills & Experience Strong experience More ❯

z/OS Systems Programmer (Mainframe) - Fully Remote We are looking for an experienced z/OS Systems Programmer to join our team, supporting the migration, installation, maintenance, and performance optimisation of IBM z/OS environments. This role is critical to ensuring reliability, security, and efficiency across our Mainframe infrastructure, while contributing to modernisation and compliance initiatives. Responsibilities … Install, configure, and maintain z/OS, JES2, SMP/E, and RACF Manage system patches, upgrades, and performance tuning Troubleshoot and resolve complex Mainframe systems issues Support integrations, migrations, and deployments across the platform Ensure adherence to security policies and regulatory compliance Collaborate with technical teams to deliver efficient and secure solutions Key Skills & Experience Strong experience More ❯

z/OS Systems Programmer (Mainframe) - Fully Remote We are looking for an experienced z/OS Systems Programmer to join our team, supporting the migration, installation, maintenance, and performance optimisation of IBM z/OS environments. This role is critical to ensuring reliability, security, and efficiency across our Mainframe infrastructure, while contributing to modernisation and compliance initiatives. Responsibilities … Install, configure, and maintain z/OS, JES2, SMP/E, and RACF Manage system patches, upgrades, and performance tuning Troubleshoot and resolve complex Mainframe systems issues Support integrations, migrations, and deployments across the platform Ensure adherence to security policies and regulatory compliance Collaborate with technical teams to deliver efficient and secure solutions Key Skills & Experience Strong experience More ❯

z/OS Systems Programmer (Mainframe) - Fully Remote We are looking for an experienced z/OS Systems Programmer to join our team, supporting the migration, installation, maintenance, and performance optimisation of IBM z/OS environments. This role is critical to ensuring reliability, security, and efficiency across our Mainframe infrastructure, while contributing to modernisation and compliance initiatives. Responsibilities … Install, configure, and maintain z/OS, JES2, SMP/E, and RACF Manage system patches, upgrades, and performance tuning Troubleshoot and resolve complex Mainframe systems issues Support integrations, migrations, and deployments across the platform Ensure adherence to security policies and regulatory compliance Collaborate with technical teams to deliver efficient and secure solutions Key Skills & Experience Strong experience More ❯

z/OS Systems Programmer (Mainframe) - Fully Remote We are looking for an experienced z/OS Systems Programmer to join our team, supporting the migration, installation, maintenance, and performance optimisation of IBM z/OS environments. This role is critical to ensuring reliability, security, and efficiency across our Mainframe infrastructure, while contributing to modernisation and compliance initiatives. Responsibilities … Install, configure, and maintain z/OS, JES2, SMP/E, and RACF Manage system patches, upgrades, and performance tuning Troubleshoot and resolve complex Mainframe systems issues Support integrations, migrations, and deployments across the platform Ensure adherence to security policies and regulatory compliance Collaborate with technical teams to deliver efficient and secure solutions Key Skills & Experience Strong experience More ❯

z/OS Systems Programmer (Mainframe) - Fully Remote We are looking for an experienced z/OS Systems Programmer to join our team, supporting the migration, installation, maintenance, and performance optimisation of IBM z/OS environments. This role is critical to ensuring reliability, security, and efficiency across our Mainframe infrastructure, while contributing to modernisation and compliance initiatives. Responsibilities … Install, configure, and maintain z/OS, JES2, SMP/E, and RACF Manage system patches, upgrades, and performance tuning Troubleshoot and resolve complex Mainframe systems issues Support integrations, migrations, and deployments across the platform Ensure adherence to security policies and regulatory compliance Collaborate with technical teams to deliver efficient and secure solutions Key Skills & Experience Strong experience More ❯

z/OS Systems Programmer (Mainframe) - Fully Remote We are looking for an experienced z/OS Systems Programmer to join our team, supporting the migration, installation, maintenance, and performance optimisation of IBM z/OS environments. This role is critical to ensuring reliability, security, and efficiency across our Mainframe infrastructure, while contributing to modernisation and compliance initiatives. Responsibilities … Install, configure, and maintain z/OS, JES2, SMP/E, and RACF Manage system patches, upgrades, and performance tuning Troubleshoot and resolve complex Mainframe systems issues Support integrations, migrations, and deployments across the platform Ensure adherence to security policies and regulatory compliance Collaborate with technical teams to deliver efficient and secure solutions Key Skills & Experience Strong experience More ❯

z/OS Systems Programmer (Mainframe) - Fully Remote We are looking for an experienced z/OS Systems Programmer to join our team, supporting the migration, installation, maintenance, and performance optimisation of IBM z/OS environments. This role is critical to ensuring reliability, security, and efficiency across our Mainframe infrastructure, while contributing to modernisation and compliance initiatives. Responsibilities … Install, configure, and maintain z/OS, JES2, SMP/E, and RACF Manage system patches, upgrades, and performance tuning Troubleshoot and resolve complex Mainframe systems issues Support integrations, migrations, and deployments across the platform Ensure adherence to security policies and regulatory compliance Collaborate with technical teams to deliver efficient and secure solutions Key Skills & Experience Strong experience More ❯

z/OS Systems Programmer (Mainframe) - Fully Remote We are looking for an experienced z/OS Systems Programmer to join our team, supporting the migration, installation, maintenance, and performance optimisation of IBM z/OS environments. This role is critical to ensuring reliability, security, and efficiency across our Mainframe infrastructure, while contributing to modernisation and compliance initiatives. Responsibilities … Install, configure, and maintain z/OS, JES2, SMP/E, and RACF Manage system patches, upgrades, and performance tuning Troubleshoot and resolve complex Mainframe systems issues Support integrations, migrations, and deployments across the platform Ensure adherence to security policies and regulatory compliance Collaborate with technical teams to deliver efficient and secure solutions Key Skills & Experience Strong experience More ❯

z/OS Systems Programmer (Mainframe) - Fully Remote We are looking for an experienced z/OS Systems Programmer to join our team, supporting the migration, installation, maintenance, and performance optimisation of IBM z/OS environments. This role is critical to ensuring reliability, security, and efficiency across our Mainframe infrastructure, while contributing to modernisation and compliance initiatives. Responsibilities … Install, configure, and maintain z/OS, JES2, SMP/E, and RACF Manage system patches, upgrades, and performance tuning Troubleshoot and resolve complex Mainframe systems issues Support integrations, migrations, and deployments across the platform Ensure adherence to security policies and regulatory compliance Collaborate with technical teams to deliver efficient and secure solutions Key Skills & Experience Strong experience More ❯

regions. Responsibilities: Horizon migration planning, execution, and optimisation Master image creation, pool configuration, patching User profile, persona and application delivery: App Volumes Dynamic Environment Manager (DEM) Horizon Cloud integration Performance tuning and troubleshooting Multi-region alignment and user experience optimisation Working alongside Nutanix platform engineers for platform readiness Essential Experience: Proven delivery of Horizon production environments at scale …/Cohesity/Rubrik/ICMU DR beneficial) Project Highlights: Global DaaS migration to Nutanix HPE HCI Enterprise grade, multi-region deployment Focus on scalability, resilience, and improved user performance VMware/Omnissa Horizon VDI Consultant Location: Hybrid: Hampshire and remote Engagement: Outside IR35 Duration: Initial 6 months Start: ASAP More ❯

FPGA ENGINEER ULTRA-LOW LATENCY SYSTEMS Location: London (Hybrid: 4 days onsite) Sector: Quant Trading/High-Performance Computing Industry leading compensation Quant Capital is partnering with a global trading firm building a greenfield FPGA team focused on low-latency, high-throughput hardware systems. This small, senior group will deliver high-speed compute infrastructure integrated directly into trading, research … What Were Looking For Strong RTL skills with experience building complex, optimised designs Programming skills, C, C++ or similar Solid grasp of timing closure, datapath design, and hardware-level performance tuning Familiar with toolchains (Vivado, Quartus) and debugging workflows Comfortable working close to hardware and owning the full development cycle Interest in improving hardware workflows or applying high More ❯

FPGA ENGINEER ULTRA-LOW LATENCY SYSTEMS Location: London (Hybrid: 4 days onsite) Sector: Quant Trading/High-Performance Computing Industry leading compensation Quant Capital is partnering with a global trading firm building a greenfield FPGA team focused on low-latency, high-throughput hardware systems. This small, senior group will deliver high-speed compute infrastructure integrated directly into trading, research … What Were Looking For Strong RTL skills with experience building complex, optimised designs Programming skills, C, C++ or similar Solid grasp of timing closure, datapath design, and hardware-level performance tuning Familiar with toolchains (Vivado, Quartus) and debugging workflows Comfortable working close to hardware and owning the full development cycle Interest in improving hardware workflows or applying high More ❯

FPGA ENGINEER – ULTRA-LOW LATENCY SYSTEMS Location: London (Hybrid: 4 days onsite) Sector: Quant Trading/High-Performance Computing Industry leading compensation Quant Capital is partnering with a global trading firm building a greenfield FPGA team focused on low-latency, high-throughput hardware systems. This small, senior group will deliver high-speed compute infrastructure integrated directly into trading, research … We’re Looking For Strong RTL skills with experience building complex, optimised designs Programming skills, C, C++ or similar Solid grasp of timing closure, datapath design, and hardware-level performance tuning Familiar with toolchains (Vivado, Quartus) and debugging workflows Comfortable working close to hardware and owning the full development cycle Interest in improving hardware workflows or applying high More ❯

FPGA ENGINEER – ULTRA-LOW LATENCY SYSTEMS Location: London (Hybrid: 4 days onsite) Sector: Quant Trading/High-Performance Computing Industry leading compensation Quant Capital is partnering with a global trading firm building a greenfield FPGA team focused on low-latency, high-throughput hardware systems. This small, senior group will deliver high-speed compute infrastructure integrated directly into trading, research … We’re Looking For Strong RTL skills with experience building complex, optimised designs Programming skills, C, C++ or similar Solid grasp of timing closure, datapath design, and hardware-level performance tuning Familiar with toolchains (Vivado, Quartus) and debugging workflows Comfortable working close to hardware and owning the full development cycle Interest in improving hardware workflows or applying high More ❯

FPGA ENGINEER - ULTRA-LOW LATENCY SYSTEMS Location: London (Hybrid: 4 days onsite) Sector: Quant Trading/High-Performance Computing Industry leading compensation Quant Capital is partnering with a global trading firm building a greenfield FPGA team focused on low-latency, high-throughput hardware systems. This small, senior group will deliver high-speed compute infrastructure integrated directly into trading, research … We're Looking For Strong RTL skills with experience building complex, optimised designs Programming skills, C, C++ or similar Solid grasp of timing closure, datapath design, and hardware-level performance tuning Familiar with toolchains (Vivado, Quartus) and debugging workflows Comfortable working close to hardware and owning the full development cycle Interest in improving hardware workflows or applying high More ❯

FPGA ENGINEER – ULTRA-LOW LATENCY SYSTEMS Location: London (Hybrid: 4 days onsite) Sector: Quant Trading/High-Performance Computing Industry leading compensation Quant Capital is partnering with a global trading firm building a greenfield FPGA team focused on low-latency, high-throughput hardware systems. This small, senior group will deliver high-speed compute infrastructure integrated directly into trading, research … We’re Looking For Strong RTL skills with experience building complex, optimised designs Programming skills, C, C++ or similar Solid grasp of timing closure, datapath design, and hardware-level performance tuning Familiar with toolchains (Vivado, Quartus) and debugging workflows Comfortable working close to hardware and owning the full development cycle Interest in improving hardware workflows or applying high More ❯

define mastering rules, match/merge strategies, and data quality standards. Provide hands-on technical leadership during development, testing, and deployment phases, ensuring alignment with architectural best practices. Drive performance tuning, scalability, and optimisation efforts for high-volume customer data environments. Maintain detailed solution documentation, including data dictionaries and integration specifications. Mentor and support development and analysis teams More ❯

define mastering rules, match/merge strategies, and data quality standards. Provide hands-on technical leadership during development, testing, and deployment phases, ensuring alignment with architectural best practices. Drive performance tuning, scalability, and optimisation efforts for high-volume customer data environments. Maintain detailed solution documentation, including data dictionaries and integration specifications. Mentor and support development and analysis teams More ❯

define mastering rules, match/merge strategies, and data quality standards. Provide hands-on technical leadership during development, testing, and deployment phases, ensuring alignment with architectural best practices. Drive performance tuning, scalability, and optimisation efforts for high-volume customer data environments. Maintain detailed solution documentation, including data dictionaries and integration specifications. Mentor and support development and analysis teams More ❯

platform app, built with a clean, scalable architecture and a product that’s already live and growing fast. You’ll be hands-on with everything from UI polish to performance tuning, and you’ll have a strong voice in architectural decisions, tooling, and release strategy. The team is small, sharp, and fully remote. Everyone here codes, cares, and More ❯