1 to 25 of 351 Permanent Performance Tuning Jobs in England

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 … 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 More ❯

a highly skilled Siebel Developer looking to contribute to a dynamic and innovative team. If you are passionate about enterprise application development, integration, and performance optimisation, we encourage you to apply and be part of an exciting digital transformation journey. CGI was recognised in the Sunday Times Best Places … designing, developing, and maintaining enterprise-scale Siebel solutions. You will be responsible for supporting the full software development lifecycle (SDLC), ensuring seamless integration, optimal performance, and a robust Siebel infrastructure. Working within a multi-functional team, you will collaborate with developers, testers, and business analysts to gather requirements, assess … expected to manage and optimise Siebel Dev and SIT environments, ensuring a smooth migration of changes from development to testing. You will contribute to performance tuning initiatives, identifying and resolving bottlenecks in online and batch integrations to enhance system reliability. A key aspect of your responsibilities will include More ❯

a highly skilled Siebel Developer looking to contribute to a dynamic and innovative team. If you are passionate about enterprise application development, integration, and performance optimisation, we encourage you to apply and be part of an exciting digital transformation journey. CGI was recognised in the Sunday Times Best Places … designing, developing, and maintaining enterprise-scale Siebel solutions. You will be responsible for supporting the full software development lifecycle (SDLC), ensuring seamless integration, optimal performance, and a robust Siebel infrastructure. Working within a multi-functional team, you will collaborate with developers, testers, and business analysts to gather requirements, assess … expected to manage and optimise Siebel Dev and SIT environments, ensuring a smooth migration of changes from development to testing. You will contribute to performance tuning initiatives, identifying and resolving bottlenecks in online and batch integrations to enhance system reliability. A key aspect of your responsibilities will include More ❯

Outside IR35 Start date: ASAP, 12-month contract What you'll be doing Leading the development of scalable, reliable systems for training and fine-tuning transformer-based models Optimising inference pipelines for real-time applications — aiming for low latency and high throughput Exploring and applying advanced fine-tuning methods like LoRA, prefix-tuning, and adapters Tuning performance across GPUs and systems using tools like DeepSpeed, Triton, TensorRT, and even custom kernels Working closely with research, platform, and product teams to deliver new features and enhance the developer experience Identifying and resolving bottlenecks through profiling … benchmarking, and performance tuning Helping to define best practices for building, testing, and maintaining production ML services and APIs Mentoring other engineers and helping to foster a culture of technical excellence and innovation What our client is looking for 7+ years of experience building and deploying large-scale More ❯

Electronic trading specialist - Java Developer Main Purpose of this role: Background The E-Fixed income Development Team is responsible for implementing low latency, high performance and real-time electronic trading systems. This could involve building bespoke pricing and trading platforms, as well as distribution of market data to external … Design Linux systems TCP, UDP, Ethernet, HTTP Experience of the following: Electronic Trading Infrastructure as code (we use AWS and Ansible) Building fault tolerant, performance critical system Profiling and performance monitoring Ability to multi-task and work under pressure Analytical/Logical mindset Take ownership, help specify and … approaches (does not need to be banking) Minimum 5/8 years of experience developing multi-threaded/concurrency applications, including code analysis and performance tuning/profiling of real-time, high-volume, low-latency systems Deep understanding of FX or E- Fixed income Business and trading practices. More ❯

best Enhancing our automated testing efforts and optimizing our UAT process Serving as advisor or coach to new or lower-level analysts Troubleshooting challenging performance and scalability issues Engaging with business users in London and across Europe (Paris, Milan) Assisting in third line support during core trading hours Acting … team members. Liaising with the global business, support, and development teams on various exciting projects Job Opportunities: Build a strong profile in a high-performance global team (London, Paris, NY) Develop efficient and robust solutions to challenging business problems. Work on a globally distributed team to deliver the next … and Linux Experience developing large financial software trading systems with substantial hands-on development experience in building systems with an attention to optimizing and tuning performance, while also demonstrating critical thinking skills related to re-use, scalability, and troubleshooting. Prior experience in building algo trading systems is highly More ❯

be responsible for designing, implementing, managing, and optimizing Azure SQL database environments. This role requires expertise in cloud-based database administration, high availability solutions, performance tuning, and security best practices. You will collaborate with development, infrastructure, and security teams to ensure efficient database operations that align with business … objectives. Main Duties and Responsibilities Design, implement, and maintain Azure SQL databases to support business applications. Monitor and optimize database performance, security, and availability. Configure and manage high availability and disaster recovery (HA/DR) solutions such as Always On Availability Groups. Perform database tuning, indexing, and query … . Expertise in database backup, recovery, and disaster recovery planning. Experience implementing security best practices, including RBAC, encryption, and auditing . Strong understanding of performance tuning techniques , including indexing strategies and query optimization. Familiarity with PowerShell scripting and Infrastructure as Code (IaC) tools such as Terraform or ARM More ❯

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 … 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 and optimizations. Manage and tune Linux systems (RHEL, Rocky, CentOS, OEL) for low latency applications, including memory, CPU, and network tuning. Work closely with low latency network technologies, including kernel bypass with Solarflare/onload, and understand physical server architecture differences (Intel, AMD More ❯

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 … 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 and optimizations. Manage and tune Linux systems (RHEL, Rocky, CentOS, OEL) for low latency applications, including memory, CPU, and network tuning. Work closely with low latency network technologies, including kernel bypass with Solarflare/onload, and understand physical server architecture differences (Intel, AMD More ❯

Senior Java Developer – High-Performance FX Trading We’re working on behalf of a prestigious financial services organization to source a highly skilled Senior Java Developer with a strong background in building high-performance, low-latency trading systems. This is an exciting opportunity to contribute to the evolution … while collaborating closely with cross-functional teams that include product leads, architects, and operations specialists. Key Responsibilities: Application Development: Design, develop, and maintain high-performance FX Matching applications using Java. Apply event-driven architecture principles to create scalable and responsive systems. Conduct OS-level and Java performance tuning … efforts and maintain automated test frameworks. Promote secure coding practices and contribute to compliance and risk mitigation strategies. Key Requirements: Proven experience building high-performance systems for FX or similar financial trading applications. Bachelor’s degree in Computer Science, Engineering, or a related technical field. Strong expertise in low More ❯

Senior Java Developer – High-Performance FX Trading We’re working on behalf of a prestigious financial services organization to source a highly skilled Senior Java Developer with a strong background in building high-performance, low-latency trading systems. This is an exciting opportunity to contribute to the evolution … while collaborating closely with cross-functional teams that include product leads, architects, and operations specialists. Key Responsibilities: Application Development: Design, develop, and maintain high-performance FX Matching applications using Java. Apply event-driven architecture principles to create scalable and responsive systems. Conduct OS-level and Java performance tuning … efforts and maintain automated test frameworks. Promote secure coding practices and contribute to compliance and risk mitigation strategies. Key Requirements: Proven experience building high-performance systems for FX or similar financial trading applications. Bachelor’s degree in Computer Science, Engineering, or a related technical field. Strong expertise in low More ❯

Location: London, UK About the Client: We are partnering with an exciting, disruptive technology company at the forefront of machine learning (ML) and high-performance GPU computing. This innovative firm is leveraging cutting-edge GPU technology to optimize machine learning algorithms and computational models, powering the next wave of … AI and data-driven applications. Their mission is to drive performance optimization in ML and AI workloads, transforming industries such as autonomous vehicles, healthcare, and immersive gaming experiences. This is a fantastic opportunity for someone passionate about low-level systems programming and ML optimization to be part of a … the future of technology. The Role: We are seeking a Low-Level C++ Engineer to join their team and work directly on optimizing GPU performance for machine learning (ML) workloads. As part of the ML optimization team, you will be responsible for developing and fine-tuning GPU-level More ❯

technologies. Scripting: SQL, PL/SQL, Shell, PowerShell. Tools: pgAdmin, SSMS, Oracle Enterprise Manager, AWS RDS, Azure SQL, etc. Backup solutions, monitoring tools, and performance tuning utilities. Minimum Qualifications: Degree or equivalent qualification; 2-3 years of Database Administration experience. Duties and Responsibilities: Database Management & Maintenance Install, configure … and upgrade database management systems (DBMS) such as Oracle, SQL Server, MySQL, PostgreSQL, etc. Perform routine maintenance including backups, updates, and patches. Monitor database performance and tune for efficiency (indexing, query optimization, etc.). Manage database storage and capacity planning. Security & Compliance Implement and manage database security policies including … recovery strategies. Perform regular data backups and test restoration procedures. Respond quickly to restore data in the event of a failure or breach. Monitoring & Performance Tuning Monitor database activity and usage. Analyze slow-running queries and make recommendations for optimization. Use tools to track performance metrics and More ❯

including Life Assurance, Private Health Cover, Pension Scheme, and More Your Skills/Background: Design and Build of High Volume Database Architectures TSQL, SQL, Performance Tuning Who we are: We're Sprint Enterprise Technology - a small, high-impact fintech company, doing big things in the UK wealth management … private cloud, carefully managed by our own Infrastructure Engineers and our hosting partners. We run a network of SQL Servers, ensuring high availability and performance for our data-driven solutions. Our product FINIO is the award winning data hub that connects investment platforms, discretionary fund managers with software providers … financial technology solutions. This is a fully remote opportunity within the fintech sector. About you: An expert in the design and build of high performance/high volume database architectures Highly proficient in TSQL including Stored Procedures, Views, Triggers, and UDF's Have in-depth knowledge of SQL Internal More ❯

end focused and is a hands-on technical leadership position , where you will be responsible for driving the design, development, and delivery of high-performance software solutions. While you will have some team management responsibilities, the primary focus of this role is technical excellence, ensuring that the team follows … Hands-on development: Lead by example, writing high-quality, well-tested Java code. Technical Leadership: Guide the team in best practices for software architecture, performance optimization , and maintainability. Design and problem-solving: Drive the design of complex systems, ensuring scalability, security, and reliability. Code reviews and mentorship: Provide guidance … and feedback through code reviews, fostering a culture of engineering excellence. Continuous improvement: Identify and drive technical improvement, such as refactoring, performance tuning, and new technology adoption. Collaboration: Work closely with Product UX, and other engineering teams to deliver high-value features. Team Support: While this is not More ❯

building scalable, resilient infrastructure and automation. Proven leadership in designing and maintaining Kubernetes-based platform solutions, with deep hands-on expertise in cluster orchestration, performance tuning, and team guidance. Extensive knowledge of Docker, Terraform, and modern CI/CD pipelines (GitLab, Jenkins), enabling seamless application delivery and infrastructure … and iOS, contributing to a unified delivery platform across frontend and backend systems. Hands-on experience in WebSphere Application Server administration, covering installation, configuration, performance tuning, and lifecycle management. Demonstrated problem-solving skills, with an analytical and systems-thinking approach to resolving complex platform issues. Domain experience in More ❯

judgment and leadership that comes from years of hands-on experience. ________________________________________ Key Responsibilities: * Administer, monitor, and maintain SQL Server databases across multiple environments. * Perform performance tuning, query optimisation, and database health checks. * Manage database backup, recovery, and disaster recovery planning. * Apply patches and updates to maintain security, performance … DBA-related matters. ________________________________________ Skills & Experience Required: * Extensive experience as a SQL DBA within a complex enterprise environment. * Strong knowledge of core DBA activities including performance tuning, backup/restore strategies, patch management, and data integrity assurance. * Experience working with cloud platforms - especially Azure and/or AWS (equivalent More ❯

judgment and leadership that comes from years of hands-on experience. Key Responsibilities: Administer, monitor, and maintain SQL Server databases across multiple environments. Perform performance tuning, query optimisation, and database health checks. Manage database backup, recovery, and disaster recovery planning. Apply patches and updates to maintain security, performance … DBA-related matters. Skills & Experience Required: Extensive experience as a SQL DBA within a complex enterprise environment. Strong knowledge of core DBA activities including performance tuning, backup/restore strategies, patch management, and data integrity assurance. Experience working with cloud platforms - especially Azure and/or AWS (equivalent More ❯

SQL queries, stored procedures, and database architectures to support business operations. The ideal candidate will be highly proficient in SQL development, database administration, and performance tuning while ensuring data integrity and efficiency. Key Responsibilities Develop, optimise, and maintain complex SQL queries, views, and stored procedures using Microsoft SQL … RDBMS (e.g., MySQL, PostgreSQL) and NoSQL platforms (e.g., MongoDB) Support the Business Intelligence team in delivering insightful reporting solutions Ensure data quality, integrity, and performance across high-volume systems Participate in stakeholder discussions to shape bespoke data strategies Essential Requirements Commercial experience as a SQL Developer Strong expertise in … Familiarity with other relational and NoSQL database technologies Solid foundation in data engineering, including ETL and pipeline development Experience with high-transactional systems and performance tuning Understanding of business analytics and data-driven decision-making Based locally to East Midlands and available for full-time on-site work More ❯

SQL queries, stored procedures, and database architectures to support business operations. The ideal candidate will be highly proficient in SQL development, database administration, and performance tuning while ensuring data integrity and efficiency. Key Responsibilities Develop, optimise, and maintain complex SQL queries, views, and stored procedures using Microsoft SQL … RDBMS (e.g., MySQL, PostgreSQL) and NoSQL platforms (e.g., MongoDB) Support the Business Intelligence team in delivering insightful reporting solutions Ensure data quality, integrity, and performance across high-volume systems Participate in stakeholder discussions to shape bespoke data strategies Essential Requirements Commercial experience as a SQL Developer Strong expertise in … Familiarity with other relational and NoSQL database technologies Solid foundation in data engineering, including ETL and pipeline development Experience with high-transactional systems and performance tuning Understanding of business analytics and data-driven decision-making Based locally to East Midlands and available for full-time on-site work More ❯

drive operational excellence. Job Duties Lead, mentor, and develop a high-performing team of DBAs. Define and implement best practices for database administration, including performance tuning, service escalations, monitoring, security, and disaster recovery. Oversee all aspects of database operations, including installation, configuration, upgrades, migrations, patching, and application development … through data solutions. Monitor database performance and proactively resolve issues. Collaborate with development, architecture, and service teams to ensure smooth database deployments, integrations, best practice solution design, and achievement of service SLA requirements. Participate in capacity planning and resource allocation for the DBA team. Ensure high availability and disaster … ability to lead, motivate, and develop a high-performing team in a 24x7 high-traffic environment. In-depth knowledge of database administration concepts, including performance tuning, security, scaling, clustering, backup, and replication. Hands-on experience in an operational production DBA role with MySQL, MariaDB, or Oracle. Effective communication More ❯

role in a talented team where youll be developing and optimising highly available, robust, and scalable MySQL databases, while contributing to architectural decisions and performance tuning Essential: MySQL DBA and development experience Performance tuning, optimisation, and indexing SQL Server to MySQL migration experience Writing performant SQL More ❯

drive operational excellence. Job Duties • Lead, mentor, and develop a high-performing team of DBAs. • Define and implement best practices for database administration, including performance tuning, service escalations, monitoring, security, and disaster recovery. • Oversee all aspects of database operations, including installation, configuration, upgrades, migrations, patching, and application development … through data solutions. • Monitor database performance and proactively identify and resolve issues. • Collaborate closely with development, architecture, and service teams to ensure smooth database deployments and integrations, best practice solution design, and achieve service SLA requirements. • Participate in capacity planning and resource allocation for the DBA team. • Ensure high … to lead, motivate, and develop a high-performing team in a 24x7 high traffic operational environment. • In-depth knowledge of database administration concepts, including Performance Tuning, Security, Scaling, Clustering, Backup and Replication. • Previous hands-on experience in an Operational Production DBA role utilising MySQL, MariaDB or Oracle • Ability More ❯

management and training, with closer integration of data across these domains. Comply365 ensures our customers' teams and assets are always geared for peak operational performance and unlocks unparalleled financial and operational gains through more streamlined, robust, and agile operations. Our culture truly sets us apart at Comply365. In addition … urgency of issues and facilitate follow-up and resolution accordingly, including service quality initiatives to support a "five nines" product availability environment. Complete ongoing performance tuning, hardware upgrades, and resource optimization as required. Configure CPU, memory, and disk partitions as required. Participate in the design, implementation, and management … and IAM. EKS would be a bonus. Broad experience with cloud adoption, including WAR and FTR, prototyping of new environments, server builds, data migration, performance tuning of cloud environments. Technical knowledge of infrastructure components such as Network, Storage, Linux/Windows, Application knowledge of Java, Node, and IT More ❯

supporting, and optimising mission-critical SQL Server environments. This is a hands-on role that requires a deep understanding of database management, troubleshooting, and performance tuning to ensure the highest levels of availability and performance. You will have - 3+ years+ experience as a SQL Server DBA in a … On. Advanced knowledge of T-SQL for query optimisation and troubleshooting. Experience with database backup, recovery, disaster recovery planning, and strategies. Solid understanding of performance tuning methodologies, indexing strategies, and execution plans. Familiarity with monitoring tools (eg, SQL Server Profiler, Extended Events, Performance Monitor, etc.). Experience More ❯