126 to 150 of 321 Performance Tuning Jobs in the UK

and transformation projects. This role will suit someone who thrives in a collaborative environment, enjoys solving complex technical challenges, and has a deep understanding of Oracle’s RDBMS and performance tuning. Key Responsibilities Design, develop, and maintain Oracle database components and PL/SQL code (procedures, packages, triggers). Support ETL and data migration projects, ensuring data integrity and … performance across large datasets. Develop and optimise SQL scripts, queries, and DML/DDL operations. Use SQL*Loader, Database Links, and related utilities for efficient data movement. Conduct performance analysis, tune queries, and review execution plans to maximise efficiency. Work with UNIX shell environments, maintaining and developing automation scripts. Collaborate with project teams, analysts, and stakeholders to meet … procedures, packages, and triggers. ETL/Data Migration – experience with large-scale data movement and transformation projects. SQL*Loader & Database Links – practical experience loading and connecting large data sets. Performance Tuning – skilled in code analysis and execution plan optimisation. Oracle Tools – SQL*Plus, TOAD, SQL Developer. UNIX/Linux – knowledge of shell scripting; exposure to PHP or Perl More ❯

the role, an active UK*C DV Clearance is required for eligibility. Your day-to-day will consist of: Gathering and analysing statistics from operating systems and applications regarding performance tuning and error searching. Troubleshooting and providing solutions for technical issues across the stack. Be a part of system design consultation, platform management and capacity planning. Using well More ❯

data modelling skills (star/snowflake schema, optimisation, partitioning, clustering). Experience building dashboards using Looker Studio, Looker, Power BI, or Tableau . Proficiency working with large datasets and performance-tuning analytical queries. Strong communication skills with the ability to simplify complex data for non-technical stakeholders. Desirable Experience with Python for data analysis/ETL. Exposure to More ❯

DBT Cloud expertise, including models, macros, tests, documentation, and CI/CD integration. Hands-on experience developing and optimising in Snowflake Cloud Data Warehouse (schemas, warehouses, security, time travel, performance tuning). Familiarity with Snowflake cost monitoring, governance, replication , and environment management. Strong understanding of data modelling (star/snowflake schemas, SCDs, lineage). Proven Azure experience (Data More ❯

and execute migrations within strict timelines, troubleshoot issues promptly, and align processes with organisational goals and regulatory standards. You will bring expert-level SQL skills for complex query development, performance tuning, and indexing strategies, enabling accurate and efficient migration from on-premises databases such as SQL Server, Oracle, MySQL, and NoSQL to AWS cloud. Strong knowledge of ETL More ❯

someone who enjoys solving problems, improving systems, and working collaboratively across teams. Key Responsibilities Maintain and manage SQL Server and Azure data environments Ensure data system security, patching, and performance tuning Support ETL services and data operations Analyse and remediate legacy data structures Contribute to transformation and change initiatives Identify opportunities to improve data processes and suggest solutions More ❯

development, systems administration, or architecture, with strong knowledge of Windows, Linux, and enterprise applications. Experience with mainframe databases such as DB2, IMS, Adabas, Datacom, Supra, and understanding of database performance, tuning, and high availability. Familiarity with core mainframe subsystems and languages: z/OS, JCL, JES, RACF/ACF2, CICS, COBOL, PL/1, SQL, Natural. Experience in More ❯

stored procedures, and SQL Server Reporting Services (SSRS). Experience with ERP systems, preferably in manufacturing or aerospace industries would be desirable. Solid understanding of database design, optimisation, and performance tuning. Excellent problem-solving skills and attention to detail, strong communication and teamwork abilities. Preferred Qualifications Experience with CNC milling or aerospace manufacturing processes. Familiarity With Integrating ERP systems More ❯

business systems, built in PHP (Laravel) with a PostgreSQL backend, alongside managing several WordPress -based websites. Working closely with stakeholders from across the organisation, you’ll ensure the reliability, performance and evolution of the systems that drive daily operations. You’ll also help guide the future technical roadmap, support junior developers as the team grows, and take ownership of … best practice, system architecture and deployment workflows. Key Responsibilities: Lead development and enhancements on internal business systems built with Laravel, PostgreSQL and Azure blobstore. Provide ongoing maintenance, debugging and performance tuning of applications and web environments. Deliver technical support to internal users, including managing high-pressure or time-critical issues. Maintain and evolve WordPress websites (plugins, themes, security … hardening). Administer and troubleshoot Linux-based hosting environments. Build, deploy and manage containerised applications using Docker. Configure and maintain Nginx for optimal performance and security. Support firewall configuration and troubleshooting across APIs, services and repositories. Manage Git-based version control and enforce workflow best practices (branching, PRs, code reviews, release tagging). Document architecture, workflows and development processes. More ❯

to simplify and accelerate currency transactions across global markets. This position offers the opportunity to work on mission-critical systems in a highly regulated environment, ensuring stability, security, and performance of Unix-based platforms that underpin banking operations worldwide. Key Responsibilities Administer and maintain Unix/Linux systems across multiple environments. Implement and manage system upgrades, patches, and performance tuning . Support the One Click Currency programme by ensuring robust infrastructure and seamless integration with banking applications. Monitor system health, troubleshoot issues, and provide root cause analysis. Collaborate with security and compliance teams to meet global banking standards. Automate operational tasks using shell scripting and other tools. Participate in disaster recovery planning and execution. Skills & Experience Proven … Linux (RHEL) or similar distributions. Proficiency in shell scripting (Bash, Korn) and automation. Familiarity with ITIL processes , change management, and incident resolution. Experience with high-availability systems , clustering, and performance tuning. Exposure to cloud platforms (Azure or AWS) is desirable. Excellent problem-solving skills and ability to work in a regulated financial environment. Guidant, Carbon60, Lorien & SRG - The Impellam More ❯

transformation! About the Role In this hands-on, technical position, you will take ownership of a significant portfolio of around 90 SSIS batch jobs. You'll dive deep into performance analysis, tackle existing technical debt, and implement best practises that will elevate our data operations. Your expertise will be crucial as we gear up for an exciting data warehouse … migration from New York to London in 2026! Key Responsibilities Analyse and optimise SSIS ETL pipelines and batch jobs. Improve SQL performance through effective indexing and execution plans. Identify and resolve locking and blocking issues to enhance efficiency. Apply best practises to boost overall warehouse performance. Work independently to drive optimisation initiatives. Collaborate with senior developers for insightful technical … on-prem) Data Warehousing and PowerBI is essential Strong SSIS development and optimisation experience is essential. Solid experience with SSAS and SSRS tools. Deep understanding of execution plans and performance tuning techniques. Strong troubleshooting and problem-solving skills. Proven history of improving complex ETL environments. Nice to Have Experience with C# for SSIS scripts. Proficiency in Python. Exposure More ❯

transformation! About the Role In this hands-on, technical position, you will take ownership of a significant portfolio of around 90 SSIS batch jobs. You'll dive deep into performance analysis, tackle existing technical debt, and implement best practises that will elevate our data operations. Your expertise will be crucial as we gear up for an exciting data warehouse … migration from New York to London in 2026! Key Responsibilities Analyse and optimise SSIS ETL pipelines and batch jobs. Improve SQL performance through effective indexing and execution plans. Identify and resolve locking and blocking issues to enhance efficiency. Apply best practises to boost overall warehouse performance. Work independently to drive optimisation initiatives. Collaborate with senior developers for insightful technical … on-prem) Data Warehousing and PowerBI is essential Strong SSIS development and optimisation experience is essential. Solid experience with SSAS and SSRS tools. Deep understanding of execution plans and performance tuning techniques. Strong troubleshooting and problem-solving skills. Proven history of improving complex ETL environments. Nice to Have Experience with C# for SSIS scripts. Proficiency in Python. Exposure More ❯

for an experienced Infrastructure Operations Engineer to join our high-performing IT team. In this role, you will support and enhance our critical IT platforms and services, ensuring optimal performance to empower our team both on and off the track. You will work across a broad range of technologies, providing an escalation point for IT support queries while taking … Service Operation Processes (Incident, Problem, Event, Access Management, Request Fulfilment) and IT infrastructure services. Provide administration and configuration support for IT Service Desk tools and project portfolios. Maintain optimal performance across applications and infrastructure, keeping support and project backlogs within defined SLAs. Participate in weekly Technical Review Boards and proactively upskill others within IT and the wider organisation. Skills … Palo Alto, or Cisco/Checkpoint alternatives. Experienced in Windows and Linux server administration, including VM management, clustering, backup/restore, and disaster recovery. Skilled in SQL Server setup, performance tuning, HA/DR, and use of SSIS/SSRS. Familiar with command-line tools, infrastructure automation, CI/CD pipelines, and containerised environments such as Kubernetes. Knowledge More ❯

for an experienced Infrastructure Operations Engineer to join our high-performing IT team. In this role, you will support and enhance our critical IT platforms and services, ensuring optimal performance to empower our team both on and off the track. You will work across a broad range of technologies, providing an escalation point for IT support queries while taking … Service Operation Processes (Incident, Problem, Event, Access Management, Request Fulfilment) and IT infrastructure services. Provide administration and configuration support for IT Service Desk tools and project portfolios. Maintain optimal performance across applications and infrastructure, keeping support and project backlogs within defined SLAs. Participate in weekly Technical Review Boards and proactively upskill others within IT and the wider organisation. Skills … Palo Alto, or Cisco/Checkpoint alternatives. Experienced in Windows and Linux server administration, including VM management, clustering, backup/restore, and disaster recovery. Skilled in SQL Server setup, performance tuning, HA/DR, and use of SSIS/SSRS. Familiar with command-line tools, infrastructure automation, CI/CD pipelines, and containerised environments such as Kubernetes. Knowledge More ❯

in London on an initial 24 Month Fixed Term Contract for a Global Financial services Organisation. Responsibilities: Administer and optimise Oracle databases for core banking applications, ensuring high availability, performance, and security. Manage and maintain Linux and AIX servers hosting financial systems. Perform OS and database upgrades, patching, and performance tuning. Collaborate with senior IT staff and external … planning and testing. Provide on-call support and incident response for production environments. Document procedures, configurations, and operational runbooks. Experience: 7+ years in Oracle DBA roles (including RAC, ASM, performance tuning) Strong command of SQL and Oracle PL/SQL. 5+ years with Linux (RHEL/Oracle Linux) and AIX. Experience with IBM Power systems Shell scripting (Bash More ❯

in London on an initial 24 Month Fixed Term Contract for a Global Financial services Organisation. Responsibilities: Administer and optimise Oracle databases for core banking applications, ensuring high availability, performance, and security. Manage and maintain Linux and AIX servers hosting financial systems. Perform OS and database upgrades, patching, and performance tuning. Collaborate with senior IT staff and external … planning and testing. Provide on-call support and incident response for production environments. Document procedures, configurations, and operational runbooks. Experience: 7+ years in Oracle DBA roles (including RAC, ASM, performance tuning) Strong command of SQL and Oracle PL/SQL. 5+ years with Linux (RHEL/Oracle Linux) and AIX. Experience with IBM Power systems Shell scripting (Bash More ❯

support critical systems and applications. * Influence database architecture for efficiency and reliability. * Design and implement database solutions, integrations, and data extracts. * Support data analytics and reporting needs. * Advise on performance tuning for internal and external systems. * Contribute to backup and disaster recovery strategies. * Provide third-line support for incidents and requests. * Communicate with suppliers and vendors for issue … Required Experience * Proven experience managing technical/support teams in high-pressure environments. * Expertise in Microsoft SQL Server (On-Premises and Azure variants). * Database management focusing on security, performance, scaling, and cost optimization. * Backup strategies, integrity checks, and index maintenance. * Custom integrations using T-SQL, functions, and stored procedures. * Performance troubleshooting using Blocking, Caching, Wait Statistics, Extended More ❯

technology stack. Act as the technical authority for OpenShift, Kubernetes, and related containerization technologies. Design and implement scalable, secure, and compliant OpenShift solutions aligned with the bank standards. Conduct performance tuning, capacity planning, and optimization of OpenShift clusters. Develop and enforce best practices for CI/CD pipelines, DevOps workflows, and container security. Mentor engineering teams and provide More ❯

for card transaction processing, settlement, and authorization systems. o Integrate with core banking systems, payment gateways, and regulatory compliance frameworks. * System Analysis & Optimization: o Perform system analysis, troubleshooting, and performance tuning for high-volume transaction environments. * Compliance & Security: o Ensure adherence to PCI DSS, security standards, and regulatory requirements. * Collaboration & Governance: o Work closely with business analysts and More ❯

development and support. Implement solutions for card transaction processing, settlement, and authorisation systems. Integrate applications with core banking systems, payment gateways, and compliance frameworks. Conduct system analysis, troubleshooting, and performance tuning for high-volume transactional environments. Provide L2/L3 production support for critical systems, ensuring minimal downtime. Required Skills/Experience: The ideal candidate will have the More ❯

infrastructure and applications. Act as a technical lead within the team -guiding, mentoring, and supporting junior analysts while helping to shape our technical direction. Drive service improvements through automation, performance tuning, and proactive optimisation of our cloud platforms. Collaborate closely with DevOps to design and implement automation scripts and infrastructure-as-code solutions that reduce manual workload. Help More ❯

We are searching for one of our key clients for an Azure Cosmos DB Admin & Developer to drive the build-out of cloud-native, high-performance financial applications. This role sits at the sharp end of modern banking engineering, owning the design, optimisation, and operational excellence of Cosmos DB across mission-critical workloads. You will shape partitioning models, indexing … strategies, consistency models, and performance tuning while building reusable frameworks in C#/.NET or Node.js. Expect close collaboration with architects and DevOps to embed Cosmos DB into microservices, backed by robust CI/CD through Azure DevOps. This position offers genuine impact in a regulated, high-velocity technology environment. Key Skills: Azure Cosmos DB (SQL/Mongo … API), NoSQL modelling C#/.NET or Node.js Azure Functions, App Services, AKS, Logic Apps CI/CD with Azure DevOps Performance optimisation (Azure Monitor, App Insights) Distributed systems & concurrency patterns Please apply with an up-to-date CV that clearly matches the requirement. More ❯

and enrichment processes. Duties include: Working closely with analysts and software engineers to turn the business needs into solid data engineering solutions. You'll be on the lookout for performance bottlenecks and working to optimise data processing and query performance. This will help make sure your data pipeline is scalable and ready to handle big loads. Also be setting … monitoring frameworks to keep an eye on how your data pipeline is doing. Be responsible for making sure that your data meets scalability and availability targets. This will involve performance tuning and other measures to keep your data running smoothly. Taking care of data security, including access controls and encryption. You'll make sure that all sensitive data More ❯

engineers to turn your business needs into solid data engineering solutions. You'll also be creating comprehensive reports to share your findings. You'll be on the lookout for performance bottlenecks and working to optimise data processing and query performance. This will help make sure your data pipeline is scalable and ready to handle big loads. You'll also … monitoring frameworks to keep an eye on how your data pipeline is doing. Be responsible for making sure that your data meets scalability and availability targets. This will involve performance tuning and other measures to keep your data running smoothly. Taking care of data security, including access controls and encryption. You'll make sure that all sensitive data More ❯

scale, reliability, and agility — and we're looking for a Senior .NET Developer who shares our drive to deliver engineering excellence. What You'll Do Design and implement high-performance, scalablemicroservicesusing.NET 6+ and C# Own features end-to-end: from concept, design, architecture, to deployment in production Collaborate with cross-functional teams on system architecture, design reviews, and best … RESTful API design Strong grasp ofobject-oriented principles, SOLID, and clean architecture patterns Experience withcloud platforms(ideally Azure) Proficient in SQL and/or NoSQL databases, caching strategies, and performance tuning Passion for best practices: TDD, CI/CD, code reviews, and documentation A team-first mindset and the ability to lead small teams More ❯