1 to 25 of 81 Performance Tuning Jobs in London

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 ...

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 ...

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 ...

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 ...

transformations Implement robust error handling, replay, recovery and operational support patterns covering technical failures, business validation failures, rejected records and downstream availability issues. Support performance tuning for high-volume integrations, including batching, pagination, payload optimisation, parallel processing and appropriate use of asynchronous patterns. Implement secure integration patterns using … technical and business error-handling frameworks, including logging, notification, retry, replay and reconciliation support. Experience supporting high-volume or business-critical integration processing, including performance tuning and operational support considerations. Ability to produce clear technical design documents, mapping specifications, test evidence, deployment instructions and support handover material. Experience ...

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 ...

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 ...

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 ...

other systems. Implement data validation rules, reconciliation checks and exception handling so that data issues are caught early and resolved at source. Tune the performance of queries, pipelines and APEX pages, using execution plans, indexing and partitioning strategies. Contribute to code reviews, automated testing, CI/CD and technical … COLLECT/FORALL), dynamic SQL, collections and robust exception handling. Relational data modelling and normalisation, with an understanding of dimensional/data warehouse design. Performance tuning using execution plans, indexing, partitioning, and Oracle diagnostic tools. Oracle APEX Commercial experience designing, building and supporting Oracle APEX applications on recent ...

Server and SAP Business One backend tables Database Management : Write optimized SQL queries, stored procedures, and indexing strategies to efficiently handle large datasets Performance Optimization : Monitor and enhance API performance, database query execution, and application scalability Documentation : Maintain clear and detailed documentation for APIs, database structures … Code Quality : Conduct code reviews, debugging, and error handling to maintain system reliability Best Practices : Stay up to date with API design standards, database performance tuning, and cloud integration trends What You’ll Need 5+ years of backend development experience Strong .NET and C# skills for API development ...

3.x and/or SAS Viya 4, ideally supporting migration or transformation projects. Expertise in data migration, data transformation, validation, data quality management and performance tuning within large-scale environments. Strong hands-on skills with SQL, Python and scripting for data processing and automation. Experience developing automated data ...

significant impact within an ambitious and innovative organization. This role owns the end-to-end lifecycle of database platforms - from architecture and design, through performance optimization and automation, to incident response and long-term scalability planning. The successful candidate will act as a technical authority for MySQL, partnering closely … databases can safely scale to meet high-traffic, data-intensive workloads. Key Responsibilities Database Architecture & Scalability Own and evolve the architecture of high-performance, highly available MySQL platforms supporting production game workloads (>50k QPS). Design database solutions that support long-term data growth, fault tolerance, and operational simplicity. ...

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 ...

ingest and process data. Working with other members of the project team to support delivery of additional project components (API interfaces, Search) Evaluating the performance and applicability of multiple tools against customer requirements Technical Skills and expertise required Experience on ADLS, Azure SQL DB and Datawarehouse Strong working experience … knowledge in Azure Storage services (ADLS, Storage Accounts) Expertise in designing and deploying data applications on cloud solutions on Azure. Hands on experience in performance tuning and optimizing code running in Databricks environment. Good understanding of SQL, T-SQL and/or PL/SQL Should have experience ...

Evaluate AWS-native services and recommend the most effective resilience and recovery solutions. Define and test recovery objectives, failover procedures, and operational readiness. Assess performance, scalability, availability, maintainability, and operational complexity of different SQL Server deployment patterns. Produce architectural designs, technical documentation, implementation plans, and operational runbooks. Collaborate closely …/DR solutions. Extensive experience with: Always On Availability Groups Failover Cluster Instances (FCI) Log Shipping Replication Technologies Deep understanding of SQL Server performance tuning and optimisation, including: Indexing strategies Storage optimisation I/O performance Concurrency management Wait statistics analysis Strong knowledge of networking principles supporting ...

PostgreSQL.Experience with CI/CD pipelines, Git, Maven/Gradle, and DevOps practices. Knowledge of cloud platforms such as Azure or AWS.Strong troubleshooting, performance tuning, and production support experience. Experience leading development teams and managing technical delivery. Understanding/Experience in Power PlatformResponsibilitiesLead the design, development, and implementation … practices. Collaborate with business stakeholders, architects, and delivery teams to translate requirements into technical solutions. Conduct code reviews and ensure high standards of quality, performance, and security. Support application modernization, troubleshooting, and performance optimization. Support Power Platform Apps. Mentor developers and drive technical excellence within the team. About ...

data reconciliation, establish rollback plans, and deliver production runbooks and team support handovers. Required Experience & Skills 8+ years of Oracle DB development and SQL performance tuning. 5+ years in OAS/OBIEE and BI Publisher development. 5+ years in Python development for data extraction, transformation, and reporting automation. 3+ ...

data reconciliation, establish rollback plans, and deliver production runbooks and team support handovers. Required Experience & Skills 8+ years of Oracle DB development and SQL performance tuning. 5+ years in OAS/OBIEE and BI Publisher development. 5+ years in Python development for data extraction, transformation, and reporting automation. 3+ ...

areas. What we’re looking for Substantial hands-on data engineering experience at a senior level. Advanced SQL skills, including complex query development and performance tuning. Strong commercial Snowflake experience, including optimisation. Experience with Azure DevOps, Git and CI/CD. A strong understanding of data warehousing, dimensional modelling ...

platform of toolchains and workflows that accelerate application development, scale up computational experiments, and integrate all computation with project metadata, logs, experiment configuration and performance tracking over abstractions that encompass Cloud and High-Performance Computing (HPC). This metadata-forward, CI/CD-driven platform represents and enables … working Why You? Basic Qualifications: Bachelor's degree in Data Engineering, Computer Science, Software Engineering Experience with Python Experience with Cloud Experience with High Performance Compute (HPC) Preferred Qualifications: Knowledge and use of at least one common programming language: e.g., Python, Go, C++, Scala, Java, including toolchains for documentation ...

technical terms. Key Responsibilities Lead, line manage, coach and develop a team of Oracle engineers, including recruitment, objective setting, one-to-ones and performance reviews. Own delivery planning with product owners: backlog prioritisation, estimation, sprint planning, release management, and progress reporting. Set and uphold engineering standards … APEX development, including code review, source control, CI/CD and automated testing. Provide technical direction on Oracle APEX application architecture, security, performance and environment management (development, test and production). Oversee the design, operation and monitoring of data pipelines, ensuring they are reliable, performant and meet agreed service ...