51 to 75 of 499 Performance Tuning Jobs in the UK

both **online (CICS)** and batch processing environments* Perform debugging, root cause analysis, and resolution of production issues/abends* Optimize SQL queries and DB2 performance tuning* Work with schedulers such as **Control-M/CA7/TWS*** Participate in application modernization initiatives including API enablement and cloud integration … tools: + Endevor/ChangeMan + File-AID + Expeditor/Xpediter + Abend-AID + SDSF/SPUFI/QMF* Strong troubleshooting and performance tuning skills* Experience in production support and incident management**Job Title: Mainframe Developer – CICS/z/OS** **Location: London, UK (Hybrid)** **Experience ...

deliver reliable solutions in a smart work stack and structured consulting delivery model. Key responsibilities include designing and optimising SQL objects, developing data models, tuning performance, and implementing validation checks. #J-18808-Ljbffr ...

endpoints using NodeJS and Express, including detailed API documentation. Database Management: Design, optimize, and maintain complex SQL data models, ensuring efficient data structures, query performance, and reliability. Full‐Stack Development: Develop responsive and performant front‐end applications using ReactJS, focusing on UX/UI best practices. Integration & Automation: Architect … development teams and managing large‐scale projects. Database Expertise: In‐depth experience with PostgreSQL/SQL, including design of complex schemas, writing queries and performance optimisation. Security & Performance: Deep understanding of application security best practices, performance tuning, and scalable architecture. Problem‐Solving: Ability to troubleshoot complex ...

unstructured sources into entities, relationships, and traversable knowledge graphs. - Establish an operations framework on Azure: ingestion pipelines, schema versioning, monitoring, backup/HA, security, performance tuning, and deployment standards. - Deploy and operate Neo4j on Azure (AuraDB or Azure VM/container-based Neo4j), integrating with Azure AI Search … recommendations. *Must-have skills:* Neo4j, Cypher, graph modelling/ontology, Graph Data Science, vector search, multi-hop querying, Python, Azure data/AI services, performance tuning, and Azure cost optimization. *Nice-to-have:* GraphRAG, LLM orchestration, knowledge-graph extraction, Azure DevOps, enterprise data governance, and FinOps. ...

unstructured sources into entities, relationships, and traversable knowledge graphs. - Establish an operations framework on Azure: ingestion pipelines, schema versioning, monitoring, backup/HA, security, performance tuning, and deployment standards. - Deploy and operate Neo4j on Azure (AuraDB or Azure VM/container-based Neo4j), integrating with Azure AI Search … recommendations. *Must-have skills:* Neo4j, Cypher, graph modelling/ontology, Graph Data Science, vector search, multi-hop querying, Python, Azure data/AI services, performance tuning, and Azure cost optimization. *Nice-to-have:* GraphRAG, LLM orchestration, knowledge-graph extraction, Azure DevOps, enterprise data governance, and FinOps. ...

wider team and with our customers.## What you will do as a Senior Data Engineer* Design, administer and optimise SQL Server databases, ensuring performance, security, resilience, and availability.* Troubleshoot and resolve database-related issues in development and production environments.* Implement and maintain database security controls, backup strategies, replication … optimising data pipelines.* Strong experience with Microsoft SQL Server and working with large, complex databases.* Strong experience designing, administering and optimising database solutions, including performance tuning, troubleshooting, security, access controls, and working with SQL, NoSQL and cloud-based technologies.* Experience with ETL processes and data integration techniques.* Ability ...

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 ...

Description We’re looking for Java Developers with experience building low-latency systems to join us on a high-performance trading and real-time data project, for a major financial institution. You’ll work on mission-critical applications where performance, scalability, and reliability truly matter — the kind … opportunity to bring world-class engineering principles to projects at the very heart of modern finance. Your work will focus on writing and tuning high-performance Java frameworks, improving throughput and latency, and applying event-driven, microservice-based architectures. You’ll collaborate closely with other talented engineers, helping ...

proposals, architecture options papers, and business cases to senior stakeholders and governance boards Lead architecture assurance and design authority reviews, ensuring solutions meet security, performance, resilience, and compliance requirements Define solution patterns and reference architectures for Oracle cloud workloads that can be reused across programmes Manage technical risk throughout … above) on-premises and in cloud Manage Oracle Database Service deployments across OracleDB@Azure, OracleDB@AWS, and OracleDB@GCP Perform database performance tuning, patching, backup and recovery, and capacity planning Manage Oracle RAC, Data Guard, and ASM environments Support Oracle Advanced Security features including TDE, audit vault ...

finance lending and savings accounts to a variety of customers. We are looking for an experienced Database Administrator to support the reliability, security and performance of our database estate. Working closely with our Lead Data Engineer, infrastructure teams and third-party DBA partner, you will help manage approximately … home. The role and what you’ll lead and deliver: This is a hands-on technical role where you will monitor database health, optimise performance, manage backup and recovery processes, investigate incidents and implement controlled database changes. You will also have the opportunity to contribute to the continued development ...

platform, and your impact is felt across global markets. Role Overview/What will you do: Lead end‐to‐end delivery of complex, high‐performance Java applications supporting FX risk management across global markets Architect scalable, low‐latency solutions that process real‐time risk data at scale — designing … resilience, performance, and security from day one Drive technical direction and key decisions — from system design and architectural choices to setting engineering standards across the team Translate complex business requirements into robust, high‐quality code — working closely with quantitative analysts, traders, and business stakeholders Craft high‐quality, scalable software ...

Responsibilities Install, configure, upgrade, and administer Oracle Database environments. Manage database backups, recovery procedures, patching, and ongoing maintenance activities. Monitor, troubleshoot, and optimise database performance to ensure maximum availability and reliability. Implement and maintain database security controls, including Oracle Transparent Data Encryption (TDE). Configure, administer, and support Oracle … Enterprise Manager (OEM). Develop and maintain automated monitoring, reporting, and routine administrative processes. Perform database performance analysis, tuning, and troubleshooting using AWR and ADDM reports. Configure and support Oracle DataGuard environments, including disaster recovery planning, switchover, and failover activities. Provide technical administration and support for Oracle ...

Developer with a strong background in Unix Shell Scripting . In this role, you will be responsible for developing database objects, optimizing query performance, and writing automated Unix scripts to handle batch processing and data integration tasks. The ideal candidate thrives in a backend environment, possesses excellent troubleshooting skills. … Scripting: Create, maintain, and debug complex Unix/Linux shell scripts (Wrapper Programs) to automate routine PL/SQL Programs, and scheduled batch jobs. Performance Tuning: Monitor and optimize code performance by tuning complex SQL statements and PL/SQL blocks using tools like EXPLAIN PLAN ...

support AI-driven analytics, recommendations, forecasting, and intelligent automation. Optimise cloud data platforms for AI scalability, including data lakehouse architectures, semantic layers, and high-performance data retrieval patterns. Stays current with Snowflake features, best practices, and industry trends in cloud data platforms. Performs additional related duties as assigned. Knowledge … complex SQL queries and stored procedures Database stored procedures, functions, views, and schema design Using Streams, Tasks, Time Travel, and Cloning Proficiency in database performance tuning and performance optimisation — clustering, warehouse sizing, caching, etc. Experience configuring external stages to integrate with cloud storage (AWS S3, Azure Blob ...

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 ...

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 ...

PostgreSQL databases hosted on the AWS Cloud platform. The successful candidate will collaborate with cross-functional teams to ensure database reliability, availability, and performance, while also contributing to the overall architecture and strategy of our cloud‐based database solution. 1. Database Design and Architecture: Collaborate with software engineers, DevOps … instance sizing, storage, and security. Implement and manage replication, clustering, and backup/recovery strategies to ensure high availability and disaster recovery. 3. Performance Monitoring and Optimization: Monitor database performance, proactively identifying and resolving performance bottlenecks, slow queries, and other issues affecting system responsiveness. Tune database parameters ...

Server and Azure SQL migrations, including schema and data migration. Perform data validation and reconciliation to ensure successful migration outcomes. Troubleshoot and optimise database performance, availability and reliability. Support database stabilisation, remediation and post‐migration improvements. Provide database platform engineering expertise across cloud migration workstreams. Support database automation … dependency analysis. Experience planning and executing end‐to‐end database migrations. Strong understanding of database schema migration, data migration and validation. Experience with database performance tuning, optimisation and troubleshooting. Good understanding of database architecture, security permissions and data integrity. Experience supporting production database platforms and resolving complex technical ...

Server and Azure SQL migrations, including schema and data migration. Perform data validation and reconciliation to ensure successful migration outcomes. Troubleshoot and optimise database performance, availability and reliability. Support database stabilisation, remediation and post-migration improvements. Provide database platform engineering expertise across cloud migration workstreams. Support database automation … dependency analysis. Experience planning and executing end-to-end database migrations. Strong understanding of database schema migration, data migration and validation. Experience with database performance tuning, optimisation and troubleshooting. Good understanding of database architecture, security, permissions and data integrity. Experience supporting production database platforms and resolving complex technical ...

Travel, and Fail-safe.Drive Snowflake cost optimization and FinOps practices virtual warehouse sizing and scaling policies, auto-suspend/resume, resource monitors, and query performance tuning (clustering keys, Search Optimization, materialized views, result caching, adaptive compute).Enable AI- and GenAI-ready architectures on Snowflake Cortex AI, agentic governance ...

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 ...