151 to 175 of 205 Performance Tuning Jobs in England

trusted to drive conversations, challenge ideas, and influence outcomes. What we’re looking for: Core strengths Deep expertise in SQL Server (architecture, optimisation, performance tuning) Strong experience in C#/.NET (or similar languages) Proven ability to think across systems, not silos Experience in front-office/trading ...

context (Node.js, shared libraries, or tooling) Deep familiarity with core AWS infrastructure — Lambda, ECS/EKS and RDS/Aurora - specialised knowledge in Aurora performance tuning is a significant plus Proficiency with AWS messaging services, specifically SQS, SNS and EventBridge Strong communication skills across technical and non-technical ...

Practical experience leading DevOps and SRE initiatives and driving best practices Experience with cryptography preferred Bonus points for each of the following: Experience with performance tuning and scaling across client, backend, infrastructure Working closely with C‐level executives to align on direction, vision and execution Having both ...

setup and configuration (regions, JVM servers) Understanding of z/OS components used by CICS Liberty (USS, RACF, TCP/IP, SMF) Capacity planning, performance tuning, and availability (HA/DR) Problem determination using dumps, traces, SMF data, and logs WebSphere Liberty configuration (server.xml, features, shared libraries … tuning for z/OS (heap sizing, GC behaviour) Managing Java workload inside CICS (JVM servers lifecycle, diagnostics) Patching and maintaining Liberty and Java SDK levels RACF and TLS configuration (certificates, keyrings, SAF integration) REST/HTTP exposure and API enablement CI/CD awareness (bundles, pipelines, automated deployment ...

role A skilled BI Administrator to manage, maintain, and optimize our Business Intelligence (BI) platforms. You will be responsible for system administration, performance tuning, user access management, and ensuring data accuracy and security across BI tools. This role will work closely with business stakeholders to support decision-making … vendors, consultants, or developers for system improvements. BI Administrator: Maintain BI tools (ThoughtSpot, Snowflake) Manage user roles, permissions, and security settings. Ensure system uptime, performance, and reliability. Ensure data accuracy, consistency, and security across BI platforms. Monitor and troubleshoot data refresh failures and performance issues. Optimize BI dashboards ...

make extensive use of SaaS, IaaS, PaaS solutions. You'll be keeping abreast of key developments and continuously driving for improvements through automation and performance tuning methods that could impact our database related systems as well as changes in tools, technologies or working practices that can be exploited … storage, with the ability to diagnose root causes and resolve complex issues Experience working within cloud environments (SaaS, IaaS, PaaS) with an understanding of performance optimisation, automation and platform stability Strong stakeholder engagement skills, with experience supporting engineers, architects and business users in a fast-paced environment Ability ...

+ PensionThis role can be done COMPLETELY REMOTELY from the UKWe are looking for: Experienced Java Back-End Software Engineers Multi-threading (GC, Memory, Performance Tuning) ideally in a trading environment Some experience with Service Modernisation, working in a modern API First and Cloud Native Experience, any experience ...

systems and microservices background Hands-on experience with RabbitMQ, Kafka or similar messaging technologies Proficiency with TCP/IP, gRPC and high-availability protocols Performance tuning, concurrency and multithreading expertise Docker, Kubernetes and CI/CD familiarity Relevant degree If this sounds like your next challenge, apply with ...

microservices background Hands-on experience with RabbitMQ, Kafka or similar messaging technologies xkybehq Proficiency with TCP/IP, gRPC and high-availability protocols Performance tuning, concurrency and multithreading expertise Docker, Kubernetes and CI/CD familiarity Relevant degree If this sounds like your next challenge, apply with ...

Nice-to-Haves: If you have a background in data engineering (think Scala, Beam, or Scio ), know your way around Protocol Buffers , or love performance tuning under heavy load, you'll stand out from the crowd. Above all, we want someone pragmatic, collaborative, and genuinely excited about shipping ...

will work across the full trading system stack, building and optimising the infrastructure that powers live trading at scale. Design and implement high-performance C++ systems targeting sub-microsecond and nanosecond-level latency Optimise production code for speed, reliability, and throughput under live market conditions Collaborate directly with traders … full software lifecycle in a fast-paced, results-driven environment Requirements: Strong modern C++ (C++17 or later), with commercial experience in low latency or performance-critical systems Deep understanding of multithreading, memory management, and systems-level performance tuning Solid Linux development background and familiarity with networking protocols ...

sometimes in our mobile app. Example projects could include improving the stock adjustment workflow, building better repair job views, adding reporting for workshop performance, or improving how customers book and manage services. Platform and integrations You might work on APIs, webhooks, background jobs, realtime updates, event-driven parts … Example projects could include integrating with an ecommerce or payments provider, improving webhook reliability, or building internal tools to make integrations easier to support. Performance and reliability You might improve busy parts of the app, including React rendering, data loading, caching, observability and production debugging. Example projects could include ...

retrospectives.Ensure code quality through reviews, automated testing, and engineering best practice.Maintain and improve CI/CD pipelines and deployment processes.Troubleshoot, debug, and optimise performance across services.Collaborate with product, UX, DevOps, and QA to deliver reliable, maintainable systems.Produce and maintain documentation and contribute to knowledge sharing.Essential Skills & ExperienceStrong commercial experience … with Java and Python .Front-end engineering experience using React and JavaScriptSolid hands-on experience with MongoDB including data modelling and performance tuning.Proficient with CI/CD, Git, automated testing, and modern engineering workflows.Experience delivering within Agile environments.Ability to work at SFIA Levels 4-5 , demonstrating: Level 4: Ownership ...

code quality through reviews, automated testing, and engineering best practice. Maintain and improve CI/CD pipelines and deployment processes. Troubleshoot, debug, and optimise performance across services. Collaborate with product, UX, DevOps, and QA to deliver reliable, maintainable systems. Produce and maintain documentation and contribute to knowledge sharing. Essential … experience with Java and Python . Front-end engineering experience using React and JavaScript Solid hands-on experience with MongoDB including data modelling and performance tuning. Proficient with CI/CD, Git, automated testing, and modern engineering workflows. Experience delivering within Agile environments. Ability to work at SFIA Levels ...

Android devices Collaborate closely with design and backend teams to bring new features to life Take ownership of the full development lifecycle — from performance optimisation to app store deployment What we’re looking for: Strong commercial experience with React Native Proven track record shipping cross-platform apps (iOS + … Android) Solid grasp of mobile lifecycles, performance tuning, and deployments A passion for creating slick user experiences that delight customers Dabbled in Swift/Objective-C (iOS) or Kotlin/Java (Android) Thrived in product-driven, fast-paced environments What’s on offer: 🌍 100% remote flexibility — work from ...

Android devices Collaborate closely with design and backend teams to bring new features to life Take ownership of the full development lifecycle — from performance optimisation to app store deployment What we’re looking for: Strong commercial experience with React Native Proven track record shipping cross-platform apps (iOS + … Android) Solid grasp of mobile lifecycles, performance tuning, and deployments A passion for creating slick user experiences that delight customers Dabbled in Swift/Objective-C (iOS) or Kotlin/Java (Android) Thrived in product-driven, fast-paced environments What’s on offer: 🌍 100% remote flexibility — work from ...

Android devices Collaborate closely with design and backend teams to bring new features to life Take ownership of the full development lifecycle — from performance optimisation to app store deployment What we’re looking for: Strong commercial experience with React Native Proven track record shipping cross-platform apps (iOS + … Android) Solid grasp of mobile lifecycles, performance tuning, and deployments A passion for creating slick user experiences that delight customers Dabbled in Swift/Objective-C (iOS) or Kotlin/Java (Android) Thrived in product-driven, fast-paced environments What’s on offer: 🌍 100% remote flexibility — work from ...

Security Clearance to support mission-critical infrastructure across production, DR, and development environments. You will provide 3rd Line support for Solaris platforms, ensuring stability, performance, and resilience across a complex UNIX/Linux estate, while contributing to ongoing infrastructure and cloud-aligned initiatives . Key Responsibilities Deliver 3rd Line … support for Solaris UNIX systems Manage Solaris environments (patching, upgrades, performance tuning) Support virtualisation (Zones/LDOMs) Troubleshoot across Solaris, AIX, RHEL, SUSE Develop shell scripting automation (Bash/KSH) Support 24/7 production environments and DR readiness Essential Skills Strong experience in Solaris UNIX (core requirement ...

commerce Android application, covering core journeys such as product browsing, shopping transactions, payment settlement, user operations and push notifications. You will continuously optimise app performance, adapt to multiple device models and system versions, support localised operations in the UK and European markets, and ensure stable and efficient product operation. … visa processing period. Key Responsibilities 1.Conduct requirement analysis, technical solution design, code development and quality assurance for the Android application 2.Lead Android architecture optimisation, performance tuning, memory management and multi-device compatibility adaptation 3.Integrate with backend service APIs, complete business joint debugging, and ensure stable network requests ...

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 … tools Understanding of access management, patch management, and vulnerability remediation processes Familiarity with ITIL practices (Incident, Problem, Change, and Configuration Management) Exposure to application performance tuning, cloud platforms, or scripting (e.g., PowerShell, Python ...

commercial and BI teams. Key Requirements: Expert experience across the Google Cloud Platform ecosystem Hands-on experience with BigQuery, including optimisation, modelling and performance tuning Proven experience building scalable data pipelines within GCP Strong knowledge of Looker and semantic layer development Experience working with Gemini Ability to design ...

implement low-latency messaging patterns (pub/sub, guaranteed messaging, request/reply) Configure and optimise brokers, VPNs, queues, and topic hierarchies Drive performance tuning for ultra-low latency trading systems Integrate trading applications with messaging architecture Monitor and troubleshoot real-time message flows and latency issues Support ...

Collaboration: Work alongside security, development, and delivery teams to ensure alignment Red Hat Linux Operating System: Deep technical understanding of RHEL administration, troubleshooting, and performance tuning. Command Line Interface (CLI): Advanced proficiency in navigating and managing Linux environments through the CLI. Shell Scripting: Proven ability to write and debug ...

Collaboration: Work alongside security, development, and delivery teams to ensure alignment Red Hat Linux Operating System: Deep technical understanding of RHEL administration, troubleshooting, and performance tuning. Command Line Interface (CLI): Advanced proficiency in navigating and managing Linux environments through the CLI. Shell Scripting: Proven ability to write and debug ...

continuous improvement of critical infrastructure running on SunOS 5.10 and SunOS 5.11 platforms. The successful candidate will be responsible for ensuring the stability, performance, security, and availability of Solaris-based systems supporting business-critical applications and services. The role will involve working closely with infrastructure, security, application, and project … teams to maintain operational excellence within a secure environment. Key Responsibilities Administer, support, and maintain Solaris (SunOS 5.10 and 5.11) environments. Perform system monitoring, performance tuning, troubleshooting, and capacity planning. Manage operating system patching, upgrades, and security remediation activities. Manage user accounts, permissions, and system access controls ...