1 to 25 of 151 Performance Tuning Jobs in the UK

Mainframe Performance & Scalability SME London (Hybrid) | 6-Month Rolling Contract | Inside IR35 We are supporting a major financial services organisation seeking a highly experienced Mainframe Performance & Scalability SME to undertake a strategic assessment of a large-scale IBM Mainframe environment supporting critical pension administration services. This … senior consulting engagement focused on identifying performance bottlenecks, scalability constraints and future growth risks across IBM Z infrastructure, z/OS, Db2 and CICS environments. You will work closely with architecture, engineering and operations teams to assess current platform performance, analyse capacity trends and provide evidence-based recommendations ...

Design scalable, reusable data processing and data quality frameworks using Python, PySpark, and dbt Build and optimize batch and streaming data pipelines with strong performance, fault tolerance, and observability Develop and operate workflow orchestration (e.g., Apache Airflow) to schedule, monitor, and manage data movement and transformations Model and transform … data for analytics using SQL and dbt to support business intelligence and reporting workloads Write production-grade Python/PySpark code with disciplined testing, performance tuning, and maintainable object-oriented design Implement infrastructure-as-code (e.g., Terraform) to provision and manage cloud-based data platform components Containerize ...

migration. Develop and optimise data warehouse structures, star schemas and dimensional models to support business and regulatory reporting. Apply best practices for Snowflake performance tuning, query optimisation and cost efficiency. Implement automated testing, source control and CI/CD processes to support controlled and reliable deployments. Ensure data … data modelling, transformation, testing and deployment. Advanced Python development skills for data engineering and automation. Strong SQL Server experience, including database design, query optimisation, performance tuning and troubleshooting. Significant experience designing and delivering enterprise-scale ETL/ELT solutions. Strong understanding of data warehousing principles, star schema design ...

looking for an experienced Senior SQL Server Database Administrator to take full technical ownership of their SQL Server estate, driving the modernisation, scalability, performance and resilience of our database services across a hybrid cloud environment. This is a hands-on, senior technical role where you will be responsible … database architecture and design, working closely with agile development teams to influence technical decisions, challenge inefficient database code and promote best practices. From advanced performance tuning and disaster recovery to security governance and data lifecycle management, you will ensure our database services meet the highest standards of operational ...

standard for how the programme logs, audits and recovers its data. Key Responsibilities Investigate data incidents, such as unexpected changes, deletions, corruption, performance failures and suspected misuse, and establish the root cause. Reconstruct events using transaction logs, WAL archives, point-in-time recovery (PITR), audit logs and replication streams. … Advise on audit and logging design (for example pgaudit and database activity monitoring) so future incidents can be traced. Support live incident response, including performance tuning and fault finding on production databases. Review backup, disaster recovery, replication and archiving arrangements. Support database migrations and upgrades, including near-zero ...

programme logs, audits and recovers its data. \n Key Responsibilities \n \n \n Investigate data incidents, such as unexpected changes, deletions, corruption, performance failures and suspected misuse, and establish the root cause. \n \n Reconstruct events using transaction logs, WAL archives, point-in-time recovery (PITR), audit logs … audit and logging design (for example pgaudit and database activity monitoring) so future incidents can be traced. \n \n Support live incident response, including performance tuning and fault finding on production databases. \n \n Review backup, disaster recovery, replication and archiving arrangements. \n \n Support database migrations ...

passionate about building and operating highly scalable database platforms? Have you administered and optimised mission-critical PostgreSQL environments in cloud-first organisations, ensuring performance, availability and resilience at scale? Can you demonstrate broad technical knowledge across Platform Engineering, DevOps and Infrastructure, alongside experience with automation and scripting using Python … technology landscape. This is an opportunity to become a technical authority for database infrastructure, helping shape the future of the database platform whilst improving performance, resilience, scalability and operational efficiency. A selection of your key responsibilities will include administering and optimising large-scale PostgreSQL environments, managing connection pooling ...

high-profile public sector project. This role is fully remote and falls inside IR35 . The Role: You will be responsible for managing, tuning, and scaling mission-critical database infrastructure hosted in secure cloud environments. Working closely with engineering and DevOps teams, you will ensure optimal performance, high … availability, and strict adherence to government security standards. Core Responsibilities: Design, configure, and manage PostgreSQL, Amazon Aurora, and Amazon RDS instances. Drive database performance tuning, slow query troubleshooting, and proactive monitoring. Execute schema updates, migrations, and engine upgrades safely within cloud ecosystems. Support disaster recovery, backup protocols ...

market-leading SaaS platform 24x7. This is a true player-coach role: you'll set the long-term database strategy and standards, improve reliability, performance, and security across the estate, and line-manage and develop our existing DBA team. You'll be the senior technical authority for database architecture … strategy, standards, and roadmap for the database function across SQL Server, Azure SQL, and Cosmos DB. Get hands-on with a live production estate: performance tuning, configuration, backups, restores, disaster recovery, incident response, and release support. Right-size and optimise Azure SQL deployments across General Purpose, Business Critical ...

within a secure environment, managing and optimising large-scale, mission-critical database platforms that underpin essential services. You'll be responsible for database administration, performance tuning, backup and recovery, security management, high availability, and disaster recovery across enterprise environments. Working alongside technical specialists, you'll help ensure database … availability while driving automation and operational improvements. Key skills and experience: Strong DBA experience across Oracle, SQL Server, PostgreSQL, MySQL, or MongoDB Database performance tuning, optimisation, and troubleshooting expertise Experience with high availability, replication, backup, and disaster recovery solutions Strong SQL knowledge and experience working within Linux ...

doing: Lead the strategy, standards and roadmap for 300+ production databases, predominantly SQL Server hosted on Azure. Provide hands-on database administration, performance tuning, monitoring and troubleshooting. Own backup, restore and disaster recovery processes, ensuring reliability and resilience. Optimise database performance, configuration, deployment processes and cost efficiency. … including deployment tiers and migration strategies. Proven ability to define database standards, strategy and long-term technical direction. Experience managing backups, disaster recovery, performance tuning and production releases in a 24/7 environment. ...

level all key system flows, the services, partners, and teams in play, and how to actively debug an incident. Lead reliability engineering: resilience patterns, performance tuning, capacity planning. Facilitate post-incident reviews and track actions to completion. Use AI tools for automated alert correlation, root cause analysis … observability tools, alerting, logging, and distributed systems debugging. Experience managing and working with offshore support teams. Hands-on experience with reliability engineering: resilience patterns, performance tuning, capacity planning. Active use of AI tools for incident triage, automation, and runbook generation. Ability to understand complex system flows across multiple ...

side electronic trading business. Additional headcount has been approved for a Senior Low Latency Network & Systems Engineer to help develop and optimise its high-performance trading infrastructure. This is an opportunity to work on technically demanding infrastructure where network performance, system efficiency and execution speed are critical … trading performance. You will take ownership of engineering and optimising ultra-low-latency infrastructure spanning Linux servers, high-performance networks, physical colocation environments, and AWS cloud infrastructure. The role offers significant technical ownership, with the opportunity to influence infrastructure architecture, introduce new technologies and deliver measurable improvements in trading ...

side electronic trading business. Additional headcount has been approved for a Senior Low Latency Network & Systems Engineer to help develop and optimise its high-performance trading infrastructure. This is an opportunity to work on technically demanding infrastructure where network performance, system efficiency and execution speed are critical … trading performance. You will take ownership of engineering and optimising ultra-low-latency infrastructure spanning Linux servers, high-performance networks, physical colocation environments and AWS cloud infrastructure. The role offers significant technical ownership, with the opportunity to influence infrastructure architecture, introduce new technologies and deliver measurable improvements in trading ...

Senior SQL Server DBA - Performance & AWS Location: Birmingham - On-site Salary: £60,000-£65,000 Job Type: Full-Time, Permanent No Sponsorship available must be UK based The Opportunity We're working with an established organisation seeking an experienced Senior SQL Server Database Administrator (DBA) to take ownership … database performance, reliability and optimisation across its AWS environment. This is an excellent opportunity for a hands-on SQL specialist to become the primary technical owner of database administration and performance, with responsibility for identifying issues, improving scalability and ensuring critical systems operate efficiently. You'll work closely ...

professionals who recognised an opportunity to provide highly secure enterprise data platforms to large organisations. We build and operate ground-breaking, ultra-secure, high performance, cloud-based data infrastructure for the enterprise. Our proprietary technology solutions drive performance and reduce costs while helping our clients to improve … workloads. Use Infrastructure as Code to create repeatable and maintainable environments. Support Docker and Kubernetes-based platform environments. Monitor platform services and investigate failures, performance issues and operational problems. Participate in incident investigation and root cause analysis . Support platform performance, scalability, resilience and availability improvements. Contribute ...

maintain complex T-SQL, including stored procedures, functions, views and queries. Design effective database structures, data models, relationships and indexing strategies. Optimise SQL Server performance through query tuning, execution plans and indexing. Support Legacy application and database migration and modernisation projects. Develop and maintain data integrations between applications … databases and internal systems. Investigate and resolve database performance, data integrity and production issues. Take ownership of the full database development life cycle, from specification and design through to testing, deployment, documentation and support. Work closely with software developers, manufacturing teams and business stakeholders to deliver effective data solutions. ...

days from office) Long term contract position Role Overview We are looking for an experienced Java Low Latency Engineer with strong expertise in Java performance optimization, JVM tuning, and high-performance system development. The ideal candidate will have experience building event-driven, concurrent systems designed … latency and high-frequency environments Required Skills & Experience Strong Core Java and JVM performance tuning expertise. Excellent knowledge of Data Structures and Algorithms. Experience with concurrency, multithreading, and low-latency system design. Knowledge of GC, JNI, Java Unsafe, and JNR-FFI. Strong understanding of CPU architecture, shared memory ...

secure and complex environment. The successful candidate will be responsible for designing, building, optimising and maintaining scalable data solutions, ensuring the availability, integrity and performance of enterprise data platforms. Key Responsibilities Design, develop and maintain Oracle-based data solutions and data pipelines. Build and optimise ETL/ELT processes … requirements. Develop and maintain Oracle databases, schemes, stored procedures, functions and packages. Ensure data quality, governance, security and compliance across all data assets. Troubleshoot performance issues and implement database tuning and optimisation strategies. Collaborate with architects, developers and business stakeholders to deliver data-driven solutions. Support cloud ...

Python and cloud-native orchestration services Implement data quality checks, validation processes, monitoring and logging to ensure trusted and reliable data delivery Support the performance tuning and optimisation of data pipelines, SQL workloads and integration services Work with AWS services such as S3, Glue, Lambda, Athena and Step ...

Python and cloud-native orchestration services Implement data quality checks, validation processes, monitoring and logging to ensure trusted and reliable data delivery Support the performance tuning and optimisation of data pipelines, SQL workloads and integration services Work with AWS services such as S3, Glue, Lambda, Athena and Step ...

Government Digital Service (GDS) standards and accessibility requirements. This is a hands-on technical leadership role operating within structured and governed environments where security, performance, accessibility, reliability, and scalability are critical to service success. The role will support the development of a modern digital system that enables secure, reliable … build-vs-buy decisions in collaboration with the Technical Architect. Identify appropriate tooling, frameworks, and technical approaches across a wide range of systems. Lead performance optimisation activities, including database query tuning and optimisation of application-level caching using existing framework capabilities. Oversee the design, monitoring, and optimisation ...

Project description Join a global technology team responsible for developing and supporting high-performance market-data and trading platforms across EMEA and the US. The project focuses on low-latency distribution of real-time market data from more than 70 proprietary direct feeds, including US Options markets.The platform operates … performance-critical Linux environment and requires efficient network programming, kernel-bypass technologies, and continuous JVM and application tuning. The team supports complex market-data workflows involving Denali, MPAC, Beacon, Refinitiv ETA, etc., while ensuring alignment with relevant market structures and regulatory requirements, including MiFID II. Responsibilities Design, develop ...

services and will play a critical part in our migration to Microsoft Azure. You will provide deep technical expertise across database operations, migration planning, performance tuning, security and service improvement. Working closely with Technology colleagues, project teams, suppliers and business stakeholders, you will ensure our database platforms … dependency planning. Manage day to day operational support for Microsoft SQL Server and related Azure data services. Monitor, tune and continuously improve database performance, availability, capacity and resilience. Troubleshoot and resolve database integrity, performance, replication, connectivity and security issues. Respond to alerts, failed jobs and incidents, ensuring timely ...

data between legacy and modern SAS environments. You will work closely with SAS Developers, Architects, Business Analysts and Test teams to ensure data integrity, performance, security and quality throughout the migration. Key Responsibilities Design and develop ETL/data pipelines to support migration to SAS Viya 4. Build … 9.4 and/or SAS Viya 3.x/4 SQL and Python AWS Docker and Kubernetes ETL, data migration and transformation Data modelling and performance tuning CI/CD and DevOps Large-scale data engineering environments Desirable SAS or AWS Data Engineering certification Experience within government or another ...