726 to 750 of 870 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 ❯

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 … 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 ❯

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 ❯

PostgreSQL Advocate: 15 + years of experience with deep knowledge of PostgreSQL architecture, features, and common issues Assisting customers with database design, performance tuning, query optimization, upgrades, patching, deployments, test data management and data migration involving PostgreSQL Act as the primary point of contact between customers and the PostgreSQL engineering or support teams... More ❯

The ideal candidate will have a strategic and proactive mindset and have previous experience as a Solution Architect. Skills: Deep WMS Knowledge - Ideally tier 1 solutions Advanced Configuration and performance tuning Strong understanding of warehouse processes: receiving, putaway, cross-docking, wave picking, cartonisation, replenishment. Experience across verticals (retail, manufacturing, 3PL, e-commerce). System Architecture - Design scalable WMS More ❯

PostgreSQL Advocate: 15 + years of experience with deep knowledge of PostgreSQL architecture, features, and common issues Assisting customers with database design, performance tuning, query optimization, upgrades, patching, deployments, test data management and data migration involving PostgreSQL Act as the primary point of contact between customers and the PostgreSQL engineering or support teams Liaising with Product managers to More ❯

Strong knowledge of SailPoint IIQ 8.4 architecture, components, and DB interactions. Expertise with schema objects (Identity, Entitlement, Role, Task Result, Audit, etc. Familiarity with IIQ DB cleanup, archival tasks, performance tuning, and certification job optimization. Awareness of upgrade/patching impacts on DB schema. - Able to troubleshoot JDBC connectivity and app server logs (Tomcat, WebLogic, JBoss - Scripting skills 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 ❯