26 to 50 of 117 Performance Optimisation Jobs in the UK excluding London

technologies Work closely with test engineers to reach a common understanding of acceptance criteria, the code base and test coverage Implement toolkits and APIs for purposes such as integration, performance optimisation, security and scalability Proactively investigate problems and opportunities in existing processes, evaluating and communicating findings and recommendations to stakeholders Identify and manage problems, incidents, risks and issues More ❯

MySQL Experience with WordPress theme and plugin development Familiarity with page builders such as Elementor, WPBakery, and Gutenberg Experience with WooCommerce or other e-commerce platforms Understanding of website performance optimisation and SEO principles Strong problem-solving skills and attention to detail Excellent communication skills, able to work with both technical and non-technical stakeholders Desirable Skills/ More ❯

functional teams to deliver seamless, secure user experiences. Taking ownership of app releases and contributing to the Android roadmap. Mentoring junior engineers and promoting engineering best practices. Working on performance optimisation, secure messaging, and API integrations. Participating in agile ceremonies and contributing to continuous improvement. Experience Strong experience in Android development and Kotlin. Solid understanding of mobile architecture More ❯

React Confident with HTML, CSS, JavaScript, PHP, and WordPress Comfortable working with REST APIs, Git/GitHub, and integrations with third-party services Knowledgeable about accessibility, responsive design, and performance optimisation Some experience with backend development, particularly WordPress queries and APIs Familiar with Git workflows, SQL, and managing multiple branches Organised, detail-oriented, and capable of juggling multiple More ❯

established solutions set the standard a decade ago. Principal Duties and Responsibilities: Linux OS Development: Design, develop, and maintain Linux-based operating systems with a strong emphasis on security, performance, and reliability. System & Security Engineering: Work with Linux distributions, kernel-level components, and networking functionality, applying modern security principles to harden systems against evolving threats. Innovation & Problem-Solving: Investigate … Science, Engineering, or another STEM discipline. Strong problem-solving ability with an innovative and independent mindset. Effective communication and teamwork skills. Desirable: C programming skills for low-level or performance-critical development. Experience with containerisation (Docker, Kubernetes). Familiarity with endpoint security, intrusion detection, or system hardening. Contributions to Linux or open-source projects. Experience with debugging, profiling, or … performance optimisation tools. Why Join Us Shape the future of secure endpoint technology. Work on high-impact projects for global, high-profile clients. Collaborate with a team of experts pushing the boundaries of Linux, networking, and security. Competitive compensation and strong opportunities for professional growth. Package & discretionary benefits: 25 days annual leave plus an additional 2 days after More ❯

and executive-level reporting. * Cross-Functional Collaboration: Work closely with Product, Commercialisation, Regional Teams, and other internal stakeholders to ensure partnership initiatives align with market needs and strategic priorities. * Performance Optimisation: Drive continuous improvement in partner performance, identifying new growth opportunities and ensuring delivery against KPIs. * Market Intelligence & Opportunity Identification: Maintain a strong understanding of market dynamics More ❯

evolving data environments-spanning traditional MS SQL Server and modern Azure Data Services. You'll be instrumental in supporting transformation initiatives, improving data-centric processes, and ensuring the security, performance, and reliability of core data systems. This is a great opportunity to contribute to a forward-thinking team that values innovation, collaboration, and continuous improvement. Key Responsibilities Manage and … maintain SQL Server and Azure-based data systems Ensure data system security, patching, and performance optimisation Support ETL and data services development using SSIS and SSRS Conduct data analysis, design, and remediation activities Collaborate on transformation projects and change initiatives Identify and implement improvements to data processes and architecture Produce high-quality technical and functional documentation Perform root … Experience Proven experience as a DBA and Data Developer within the Microsoft stack Strong T-SQL skills, including stored procedures and functions Experience with SSIS, SSRS, and SQL Server performance tuning Familiarity with Azure SQL, Azure Analytics, Dataverse, or similar platforms Ability to reverse engineer legacy data structures and perform data analysis Excellent documentation and stakeholder communication skills Desirable More ❯

have a customer-centric approach, aiming to deliver high-quality service and build lasting relationships with our clients. OUR BENEFITS: Flexible and hybrid working Autonomous working Companywide collaborative events Performance reward and achievements Private Health Insurance Pension Contribution And more WHAT WILL YOU BE DOING? In this role, you'll play a key part in optimising our data assets … empower analysts and data scientists, while implementing and maintaining CI/CD pipelines to ensure robust testing and seamless deployments. Working within our Azure infrastructure, you'll focus on performance optimisation, contribute to team standards through code reviews, and stay ahead of emerging automotive datasets to recommend new sources. You'll also create clear, comprehensive documentation to accelerate More ❯

.Net with a heavy focus on the front end. The work will be split 50/50 between Angular V18 and .Net. Experience/Skills: Angular - version 18+ (RxJs, performance optimisation, design patterns) .Net V8/C# Azure DevOps Azure experience (Functions, DevOps, Databricks, Data Factory) Industry experience within financial services Highly Desirable experience with AI/ML More ❯

Service, IT, and Sales & Marketing Translate requirements into actionable solutions and scope new projects Contribute to code reviews and continuous improvement initiatives Ensure operational readiness through logging, monitoring, and performance optimisation Candidate Profile Previous experience as a software developer with C#, VB, .NET, and Visual Studio Knowledge of React, APIs, and modern web frameworks (preferred) Strong logical thinking More ❯

as Logic Apps, Azure Service Bus and Functions. . Work closely with test engineers to ensure quality, acceptance criteria and coverage and contribute to toolkits and APIs for integration, performance optimisation, security and scalability. . Work within a multi-disciplinary team to deliver highly user focused and successful digital services ensuring governance and security standards (ISO 27001, SPF More ❯

Engineering Principles Contribute to the design, coding, testing and documentation of small scale to large, complex or mission critical programs Implement toolkits and APIs for purposes such as integration, performance optimisation, security and scalability. Working Style This role will be carried out in-line with IPO Hybrid working arrangements where staff are currently expected to spend at least More ❯

front-office trading environments). Solid understanding of market data, eFX, or time-series data. Experience building dashboards, reporting tools, or data visualisations. Knowledge of distributed systems, resiliency, and performance optimisation. Proficiency in at least one other programming language (e.g., Python, Java, C++) is desirable. Strong problem-solving and analytical skills, with the ability to work under pressure in More ❯

to create truly integrated solutions. Champion agile delivery - facilitating agile ceremonies and promoting continuous improvement. ?? What You'll Bring ? Expert Linux sysadmin skills , with a focus on automation and performance optimization. ? Strong hands-on experience with tools like Terraform, Ansible, Zabbix, and Git. ? Cloud knowledge - especially AWS and virtualization tech like Nutanix. ? Great communication skills - you know how to More ❯

and reporting issues Key Experience Proven experience in reporting development, including strong SQL skills and advanced knowledge of Power BI. A solid understanding of relational databases, data architecture, and performance optimisation. Experience managing or mentoring technical teams, ideally in an Agile environment. Strong communication and stakeholder management skills, with the ability to simplify complex technical topics for a non More ❯

and reporting issues Key Experience ·Proven experience in reporting development, including strong SQL skills and advanced knowledge of Power BI. ·A solid understanding of relational databases, data architecture, and performance optimisation. ·Experience managing or mentoring technical teams, ideally in an Agile environment. ·Strong communication and stakeholder management skills, with the ability to simplify complex technical topics for a non More ❯

a high-growth UK business, is looking for an experienced and hands-on Head of IT to take full ownership of their technology evolution - from infrastructure to innovation, CRM performance to AI integration. This is a pivotal leadership role that combines technical depth, strategic oversight, and operational excellence. Based on-site in Manchester, you'll drive tangible change, scalability … and workflow automation. With strong foundations in place (PHP 8+, MySQL 8, Redis, AWS), the next step is transformation: AI/ML-powered automation Cybersecurity hardening Platform integration and performance optimisation The successful candidate will help position the business for scale, operational efficiency, and a potential future exit. What You'll Be Doing: AI/Automation & CRM Modernisation … Lead rollout of 30+ AI/ML features including voice AI, automation, and predictive tools Overhaul the legacy CRM's UI/UX into a modern, high-performance platform Cybersecurity & Risk Management Own enterprise cybersecurity strategy, audits, and incident response Design post-attack processes and lead quarterly vulnerability assessments Infrastructure & Performance Optimise PHP/MySQL stack for speed More ❯

a high-growth UK business, is looking for an experienced and hands-on Head of IT to take full ownership of their technology evolution - from infrastructure to innovation, CRM performance to AI integration. This is a pivotal leadership role that combines technical depth, strategic oversight, and operational excellence. Based on-site in Manchester, you'll drive tangible change, scalability … and workflow automation. With strong foundations in place (PHP 8+, MySQL 8, Redis, AWS), the next step is transformation: AI/ML-powered automation Cybersecurity hardening Platform integration and performance optimisation The successful candidate will help position the business for scale, operational efficiency, and a potential future exit. What You'll Be Doing: AI/Automation & CRM Modernisation … Lead rollout of 30+ AI/ML features including voice AI, automation, and predictive tools Overhaul the legacy CRM's UI/UX into a modern, high-performance platform Cybersecurity & Risk Management Own enterprise cybersecurity strategy, audits, and incident response Design post-attack processes and lead quarterly vulnerability assessments Infrastructure & Performance Optimise PHP/MySQL stack for speed More ❯

where you'll work directly with Quants and Traders to engineer ultra-low-latency trading systems . You'll combine advanced Java engineering with strategic input into platform architecture, optimisation, and scalability -delivering business-critical solutions used daily in electronic trading. What You'll Be Working On Designing and building low-latency, multi-threaded Java applications for market making … Developing and optimising pricing algorithms, order management, and execution logic . Engineering algo containers and ultra-low-latency applications using TCP/IP, UDP, and GC tuning. Driving automation, performance optimisation, scalability, and resilience across platforms. Leading complex technical initiatives across multiple feature teams. Partnering closely with front-office stakeholders to deliver impactful trading technology. What We're … Looking For Deep expertise in Java with proven experience in ultra-low-latency, high-performance systems . Strong background in electronic trading (ideally eFX) with pricing engines, algos, or order management systems. Skilled in multi-threading, GC tuning, TCP/UDP protocols , and performance optimisation. Experience with test-driven development, automation frameworks , and Agile/DevOps. Ability to More ❯

approved Figma designs Implementing and customising subscription platforms like Skio or Recharge Integrating APIs and third-party tools such as Klaviyo, LoyaltyLion, and Gorgias Ensuring mobile-first, accessible, and performance-optimised builds Collaborating with designers, project managers, and marketers to keep projects running smoothly Contributing to coding standards, documentation, and process improvements What Were Looking For Experience in front … JavaScript skills Experience with subscription platforms (Skio, Recharge, etc.) Confident integrating best-in-class Shopify apps Strong attention to detail when translating Figma designs into live builds Understanding of performance optimisation and ecommerce SEO best practice Why Join? Join a collaborative, tight-knit team that delivers stand-out work Work on exciting projects and sites Enjoy flexibility, balance More ❯

approved Figma designs Implementing and customising subscription platforms like Skio or Recharge Integrating APIs and third-party tools such as Klaviyo, LoyaltyLion, and Gorgias Ensuring mobile-first, accessible, and performance-optimised builds Collaborating with designers, project managers, and marketers to keep projects running smoothly Contributing to coding standards, documentation, and process improvements What Were Looking For Experience in front … JavaScript skills Experience with subscription platforms (Skio, Recharge, etc.) Confident integrating best-in-class Shopify apps Strong attention to detail when translating Figma designs into live builds Understanding of performance optimisation and ecommerce SEO best practice Why Join? Join a collaborative, tight-knit team that delivers stand-out work Work on exciting projects and sites Enjoy flexibility, balance More ❯

Docker, Kubernetes), infrastructure-as-code (Terraform, Ansible), cloud architecture (private and hybrid), and CI/CD pipelines . Hands-on experience in DevSecOps principles, automated testing frameworks, and system performance optimisation will also be key to ensuring seamless integration and deployment. Our client offers the opportunity to grow your career through meaningful Defence work, alongside excellent learning and … back-end systems. Deliver large and complex solutions into wider system-of-systems, ensuring interoperability and resilience. Design and optimise infrastructure in private and hybrid cloud environments to maximise performance and security. If you're passionate about Infrastructure Engineering and eager to work with cutting-edge technologies while contributing to high-impact Defence projects , we'd love to hear More ❯

applications using C# and other technologies Write clean, maintainable, and scalable code that meets the requirements of the project Debug and resolve software issues, including fixing bugs and optimizing performance Collaborate with cross-functional teams, including Designers, Testers, and Project Managers, to deliver high-quality software Participate in code reviews and provide constructive feedback to peers Implement and follow … and WCF Database experience, schema design and SQL with MySQL Experience with N-Tier architecture/SOA Knowledge of relevant design patterns Excellent understanding of OOP concepts Expertise in performance optimisation Experience of Unit and functional testing is important, not necessarily strict TDD Source Control, must be confident using Git for all roles Experience working in an Agile More ❯

Testing Library Advanced version control using Git. Working with third party REST & GraphQL API's CSS (We use Tailwind) Desirable: Component library design using Storybook. Experience using Cloudflare workers. Performance optimisation experience (code-splitting, caching, load testing) Well-versed in implementing good practice with regards to accessibility (Keyboard support, screen readers, form usability) Knowledge of various front-end More ❯

Testing Library Advanced version control using Git. Working with third party REST & GraphQL API's CSS (We use Tailwind) Desirable: Component library design using Storybook. Experience using Cloudflare workers. Performance optimisation experience (code-splitting, caching, load testing) Well-versed in implementing good practice with regards to accessibility (Keyboard support, screen readers, form usability) Knowledge of various front-end More ❯