51 to 75 of 95 Performance Tuning Jobs in the Thames Valley

across multiple clients? Our client is looking for a talented SQL Server DBA to join their growing Managed Services team, working across a wide range of systems to ensure performance, security, and reliability at scale. What You’ll Do: Manage and maintain Microsoft SQL Server databases (including older and current versions). Enhance and oversee backup, restore, and disaster … recovery strategies. Carry out regular upkeep such as patching, index tuning, and capacity checks. Support and optimise SSRS and SSIS environments. Partner with infrastructure and project teams to deliver modernisation and migration initiatives. Monitor system performance and proactively address issues before they impact clients. Document procedures, standards, and client-specific setups for consistent delivery. Provide technical insight and … Proven track record as a SQL Server DBA (SQL 2008 R2 and beyond). Strong understanding of SQL Server management, maintenance, and patching. Solid experience in backup/recovery, performance tuning, and optimisation . Hands-on experience with SSRS and SSIS packages. Background in infrastructure transformation or database migration projects. Experience working across multiple environments or client bases More ❯

to: Perform ongoing system maintenance, patching, and upgrades in coordination with change management procedures. Manage user access controls, including provisioning, de-provisioning, and access reviews. Monitor system health and performance; initiate health checks and proactively remediate issues. Respond to and resolve incidents and service requests in line with SLAs. Provide break/fix troubleshooting and root cause analysis across … runbooks, and support knowledge base articles. Track and report on improvement KPIs (e.g., ticket trends, patching success rates). Identify inefficiencies and propose automation or process changes. Monitor application performance and assist with capacity planning and tuning. Collaborate with infrastructure teams to support system scalability and optimization. Review, prepare, and implement approved changes following structured change control processes. Support … delivery teams and Information Security, Infrastructure. Track and report on application usage, adoption trends, and user engagement using analytics tools. Measure and report system uptime, availability, SLAs, and service performance trends. Partner with stakeholders to define and monitor adoption success criteria for newly implemented applications. Use telemetry and analytics to identify opportunities for user enablement and feature optimization. Ensure More ❯

experience with: AVS, OpenJVS, Open Components, Java, SQL, C#, Python Connex Gateways for trade booking and market data integration Real-Time Position Engine (RTPE) and Automated Position Management (APM) Performance tuning and optimization for EOD batch processing If interested please apply here or reacj out to me on +44 More ❯

software development and SDLC. Task orientated, able to work to fixed deadlines and SLAs. Previous development experience within Python, ideally with experience in Flask and REST APIs. Proficient with performance tuning, debugging, and secure coding practices. Strong Microsoft Azure Integration Services (e.g. LogicApps, ServiceBus, API Management etc). In-depth understanding of system design, CI/CD, GIT More ❯

you will be required to work in the office 1 day per month ; otherwise, you will be working remotely . The candidate will be responsible for implementing, maintaining, and tuning high-traffic, multiple database applications as well as migrating existing SQL Server databases. Behavioural Competency: You will have the ability to understand the business in terms of how the … files, binary logs , etc., along with the ability to profile and optimise server resource usage . Good experience in developing, managing, and testing backup and recovery plans. Experience in performance tuning, optimisation, execution plans and indexes , along with best practices for database design. Experience with migrating SQL Server databases to MySQL Strong experience writing performant SQL, stored procedures … design choices (Heap, MyISAM, INNO DB etc) Experience writing performant queries and procedures to ensure optimal solutions Experience working with high-traffic, responsive environments and applications to ensure the performance, security, and availability of databases. Passion for technologies and a desire to remain up to date with the latest skills Knowledge and experience with data security best practices Application More ❯

Junior HPC Engineer – Full Time We’re looking for a Junior HPC Engineer to help support and grow the infrastructure behind high-performance simulation and data-intensive workloads. This is a great opportunity to build your career in high-performance computing, working alongside experienced engineers while learning how to optimize systems used in cutting-edge science and engineering. … Support Linux system administration tasks (RHEL, Rocky), with a focus on stability and uptime. Help configure and troubleshoot workload managers such as Slurm. Work with senior engineers to monitor performance of key applications and identify opportunities for improvement. Contribute to scripting and automation tasks (Bash, Python) to streamline system operations. Support end-users by responding to tickets, preparing documentation … and command-line usage. Basic knowledge of scripting (Bash and/or Python). Exposure to bare metal environments (installing, configuring, and troubleshooting physical servers). Interest in high-performance computing, scientific computing, or distributed systems. Eagerness to learn about workload managers (Slurm or similar). Good problem-solving skills, with the ability to troubleshoot technical issues. Strong communication More ❯

complete overview of the role below, then send your application for consideration. We re looking for a Junior HPC Engineer to help support and grow the infrastructure behind high-performance simulation and data-intensive workloads. This is a great opportunity to build your career in high-performance computing, working alongside experienced engineers while learning how to optimize systems … Support Linux system administration tasks (RHEL, Rocky), with a focus on stability and uptime. Help configure and troubleshoot workload managers such as Slurm. Work with senior engineers to monitor performance of key applications and identify opportunities for improvement. Contribute to scripting and automation tasks (Bash, Python) to streamline system operations. Support end-users by responding to tickets, preparing documentation … and command-line usage. Basic knowledge of scripting (Bash and/or Python). Exposure to bare metal environments (installing, configuring, and troubleshooting physical servers). Interest in high-performance computing, scientific computing, or distributed systems. Eagerness to learn about workload managers (Slurm or similar). Good problem-solving skills, with the ability to troubleshoot technical issues. Strong communication More ❯

+ Pension/Bonus Join a leading financial technology and trading organisation driving innovation in electronic markets. As an eFX Software Engineer, you’ll design and deliver high-performance, low-latency trading solutions that underpin mission-critical systems. This role offers the chance to work on cutting-edge technology where speed, scalability, and resilience are key. About the Role … Lead the design and development of secure, high-performance eFX systems Define and evolve Java patterns and techniques optimised for ultra-low latency (<40μs) Architect fault-tolerant, scalable trading systems Influence technical strategy, architecture, and product roadmaps Collaborate with multiple teams to deliver best-in-class E-trading platforms Ensure all solutions meet security, compliance, and performance standards … level Java development, including low-GC and lock-free patterns Proven background in FX trading systems, pricing, and risk management Deep understanding of CPU architecture, cache optimisation, and Linux performance tuning Expertise in networking and messaging (TCP, UDP, Multicast, FIX) Knowledge of quantitative instruments and algorithmic trading Experience implementing controls in automated trading environments Skilled in TDD, automated More ❯

large-scale data platforms with a focus on ETL, Data Management, and Data Governance Develop and maintain Databricks Delta Live Tables (DLT) pipelines with strong emphasis on cost and performance optimisation Implement and manage structured streaming and real-time data processing solutions. Handle and process high volumes of data efficiently within Databricks Translate business requirements into technical delivery plans … solutions Lead a technical delivery team of 7–10 members, providing direction, guidance, and support throughout the project lifecycle Ensure best practices are followed in data architecture, governance, and performance tuning Drive continuous improvement in data engineering processes and platform scalability Required Skills & Experience: Proven experience in building multiple large-scale data platforms Deep expertise in Databricks, especially … Delta Live Tables (DLT) and structured streaming Strong understanding of data governance, data modeling, and pipeline orchestration Hands-on experience optimising Databricks workloads for performance and cost Excellent communication and collaboration skills to bridge business and technical teams Prior experience leading data engineering teams or project delivery squads This needs combining with a positive attitude and an ability to More ❯

maintain the library of system prompts for ticket summarization, theme extraction, sentiment analysis, and qualitative insights Define reporting standards: Set quality bars for what makes a great dashboard (agent performance, app store trends, CSAT drivers, topic evolution, etc.) Optimize RAG pipelines: Design retrieval strategies and grounding approaches for report generation to ensure factual, relevant outputs Customer-Facing Analytics & Enablement … new features, validate AI outputs for accuracy and relevance, ensure quality before launch Operations & Optimization (10%) Monitor report health: Track delivery, engagement, and quality metrics; debug when outputs degrade Performance tuning: Optimize report generation costs and latency; balance API usage with quality Document everything: Maintain clear documentation for prompts, templates, and best practices What Makes You a Great More ❯

world-leading quantitative trading firm in the search for an Experienced Software Developer/Engineer to join their OTC technology group in London. This team designs and develops high-performance trading platforms that span both OTC liquidity provision and on-venue execution, covering asset classes such as equities, FX, and crypto. Operating within a highly autonomous environment, the team … works closely with quants, risk and compliance stakeholders, and trading analysts to transform requirements into production-grade systems. With a focus on safety, performance, and velocity, this is a chance to contribute to the design of mission-critical infrastructure with a small, experienced group of engineers where impact is immediate and highly visible... Key Responsibilities Design, build, and maintain … quants, analysts, and compliance stakeholders to refine system requirements and deliver production-ready solutions Implement and optimise low-latency infrastructure, including network stack integration, thread-per-core architectures, and performance tuning Contribute to team-wide design discussions, code reviews, and continuous improvement initiatives Take ownership of projects across the full development lifecycle, from architecture through deployment and monitoring More ❯

AWS knowledge, IaC expertise with Terraform and Ansible, and a proven track record leading high-impact cloud projects. You ll understand cloud security and governance inside-out, thrive on performance tuning, and be a confident communicator with solid stakeholder skills. Familiarity with GitHub, WAFs, monitoring tools, and serverless tech like AWS Lambda is key. Bonus points for experience More ❯

AWS knowledge, IaC expertise with Terraform and Ansible, and a proven track record leading high-impact cloud projects. You'll understand cloud security and governance inside-out, thrive on performance tuning, and be a confident communicator with solid stakeholder skills. Familiarity with GitHub, WAFs, monitoring tools, and serverless tech like AWS Lambda is key. Bonus points for experience More ❯

be able to work independenty with minimal help/guidance Good Understanding of Airflow,Data Fusion and Data Flow Strong Background and experience in Data Ingestions,Transformation,Modeling and Performance tuning. One migration Experience from Cornerstone to GCP will be added advantage Suppport the design and development of BigData echosystem Experience in building complex SQL Queries Strong Communication Skills More ❯

large enterprise initiatives Must have experience in Legacy Modernization programs Should be proficient at collaborating with cross functional teams Strong Background and experience in Data Ingestions, Transformation, Modeling and Performance tuning. Should have experience in designing and developing dashboards Strong Knowledge in Hadoop, Kafka, SQL/NoSQL Should have experience in creating roadmap to improve platform Observability Experience in More ❯

integration between computation, data, and science. You should have Deep experience building and scaling backend systems and distributed applications . Strong coding skills in Python , with an understanding of performance tuning and concurrency. Hands-on experience with Kubernetes , AWS , and modern cloud infrastructure . Proficiency with databases — schema design, performance optimization, and analytics. Familiarity with REST APIs … security best practices. A disciplined engineering mindset — you think about reliability, maintainability, and long-term scalability. Nice-to-haves Experience with MLOps and model-serving infrastructure. Background in high-performance computing or large-scale scientific workloads. Expertise in data pipeline architecture and real-time streaming systems. Knowledge of scientific or biological computing environments . This is a rare opportunity More ❯

and AI practice. You will play a key role in supporting and optimising MSSQL, MySQL, and Postgres database platforms across key strategic customer environments. From troubleshooting and monitoring to performance tuning, security, and database migrations, you will ensure the storage, processing, and quality of customer data while delivering large-scale data migration and modernisation projects. Key Responsibilities Optimise … Essential): Proven experience with MSSQL, MySQL, and Postgres database solutions. Strong knowledge of High Availability and Always On Availability Groups. Comprehensive understanding of indexing and optimisation techniques for database performance tuning. Experience in automating, monitoring, and managing databases and deployments using toolsets. Behavioural Competencies (Essential): Positive, collaborative, and customer-focused mindset. Eagerness to learn new technologies and mentor others. More ❯

London to find a highly skilled Front-End Software Engineer to join their world-class engineering team. This is an opportunity to work at the very heart of high-performance trading technology — building ultra-responsive, visually intuitive web interfaces for some of the most demanding users in finance. What You’ll Be Doing: Building high-performance, data-intensive … engineering excellence and code quality are non-negotiable Tech Stack: Languages: TypeScript, JavaScript (ES6+) Frameworks: React, Redux (or similar) Tooling: Webpack, Babel, Jest, ESLint, Git Bonus: Experience with WebSockets, performance profiling, or custom charting libraries (e.g., D3.js, Highcharts) What They’re Looking For: Strong experience with React and modern JavaScript/TypeScript Deep understanding of front-end architecture, performance tuning, and scalable component design Experience in fast-paced environments (finance, trading, gaming, or top-tier tech) Passion for clean, maintainable code and UI craftsmanship Why Join? Collaborate with some of the sharpest minds in trading and technology Contribute to software that drives real-time trading decisions Work in a flat-structured, engineering-led environment with rapid decision More ❯

Strong server-side Java development experience Solid understanding of Java architecture and design patterns Excellent debugging and unit testing skills Experience in front-office environments Knowledge of multi-threading, performance tuning, and memory management Exposure to FX, listed derivatives, smart order routing, and FIX order flow Rate: Up to £825/day , inside IR35 Contract: Initial 6 months More ❯

Systems, or Platform Engineering Deep knowledge of Linux, Python, and shell scripting Proven experience with Kubernetes, observability tooling, and CI/CD frameworks Strong grasp of distributed systems and performance tuning Trading, Crypto or Hedge Fund Experience Experience working in low-latency, high-frequency trading environments Why join: Work on high-impact systems that directly influence trading outcomes More ❯

desktop applications. Design and implement distributed systems for async processing, ML workflows, and asset pipelines. Own authentication, billing, and subscription systems — ensuring reliability and seamless user experience. Drive observability, performance tuning, and deployment automation across the stack. Collaborate closely with product, frontend, and ML teams to deliver features that delight and scale. You should have 5+ years of More ❯

result without friction. You’ll have room to experiment, try new approaches, and design systems in a place that backs bold thinking. Key Responsibilities: Build, run, and improve high-performance GPU training and inference clusters with a focus on reliability and automation Design and implement high-throughput data paths, including work on caching, I/O, and data locality … across compute and storage Benchmark, profile, and fix performance issues across compute, network, and orchestration layers Set up clear observability, resilience, and security controls for sensitive research environments Work with Research, Data, and Applied teams to plan GPU and storage capacity and support smoother ML experimentation Technical Skills: Strong experience designing and operating large-scale ML compute clusters Good … understanding of GPU architecture, high-speed networking, and performance tuning for distributed training Experience with modern containerised systems and migrations from traditional schedulers Knowledge of high-throughput storage systems for ML or HPC workloads Solid experience with IaC and CI/CD (Terraform, Argo CD, or similar) What’s on Offer: Salary packages competitive with FAANG businesses An More ❯

Meetings platforms . You'll be the subject matter expert for unified collaboration services, ensuring seamless, secure communication across the organisation. From user administration and troubleshooting to integrations and performance tuning, you'll keep collaboration running at enterprise scale. Key Responsibilities: Administer, configure, and maintain Cisco Webex and Cisco Meetings environments. Manage user accounts, permissions, licensing, and policies. … Monitor system performance and availability - troubleshoot and resolve incidents quickly. Support upgrades, patching, and integrations with other collaboration tools. Work with security and networking teams to enforce compliance and security standards. Develop and maintain documentation, best practices, and operational procedures. Act as an escalation point for collaboration-related support issues. Essential Skills & Experience: Proven experience administering Cisco Webex and More ❯

Meetings platforms . You'll be the subject matter expert for unified collaboration services, ensuring seamless, secure communication across the organisation. From user administration and troubleshooting to integrations and performance tuning, you'll keep collaboration running at enterprise scale. Key Responsibilities: Administer, configure, and maintain Cisco Webex and Cisco Meetings environments. Manage user accounts, permissions, licensing, and policies. … Monitor system performance and availability - troubleshoot and resolve incidents quickly. Support upgrades, patching, and integrations with other collaboration tools. Work with security and networking teams to enforce compliance and security standards. Develop and maintain documentation, best practices, and operational procedures. Act as an escalation point for collaboration-related support issues. Essential Skills & Experience: Proven experience administering Cisco Webex and More ❯

law firm is seeking an experienced Applications Operations Analyst to join its London office. This is a fantastic opportunity to play a key role in maintaining and improving the performance, security, and reliability of enterprise applications across a dynamic and fast-paced professional services environment. Reporting to the Manager of Applications Operations, the successful candidate will be responsible for … patching, monitoring, and troubleshooting, while also contributing to process improvement, documentation, and integration stability. The role involves close collaboration with infrastructure, security, and business teams to ensure seamless application performance and user experience. Key Responsibilities: Perform system maintenance, patching, and upgrades in line with change management procedures Monitor application health and performance, proactively resolving issues Manage user access … base articles Identify opportunities for automation and process optimisation Track and report on KPIs, system uptime, and user engagement metrics Collaborate with cross-functional teams to support scalability and performance tuning Ideal Candidate Profile: 3+ years of experience in enterprise application support or IT operations Strong troubleshooting and analytical skills Familiarity with ITSM platforms (e.g., ServiceNow) and monitoring More ❯