26 to 50 of 239 Performance Optimisation Jobs in England

closely with our in-house team, you will ensure that our websites are visually appealing, user[1]friendly, and high performing. You will also be responsible for website speed optimisation, SEO best practices, and integrating marketing tools to enhance overall digital effectiveness. Design & Develop: Create and maintain high-quality, responsive websites using WordPress and Elementor. Performance Optimisation … You: Proven experience as a Website Designer, preferably within a professional services or agency environment. Expertise in WordPress & Elementor - customising themes, layouts, and functionalities. Strong understanding of website speed optimisation & Core Web Vitals. SEO knowledge - on-page optimisation, schema markup, and technical SEO. Proficiency in HTML, CSS, and JavaScript (basic to intermediate). Basic knowledge of PHP and … MySQL for WordPress customisations. Experience with Google Analytics & Search Console for performance tracking and reporting. Familiarity with marketing automation tools & CRM integrations Attention to detail - ensuring consistency in design, functionality, and performance. Ability to collaborate effectively within a team and take feedback constructively Benefits: A salary of £25,000 Working 8.30am until 5pm On site parking Duvet days Early More ❯

implementation of ML pipelines, APIs, and data integration workflows. Operational Excellence: Contribute to defining reusable development patterns, enforcing coding standards, and implementing MLOps best practices that support version control, performance optimisation, and maintainability. Cross-Disciplinary Collaboration: Work side-by-side with data scientists, product managers, platform engineers, and QA teams to align on technical requirements, delivery timelines, and More ❯

implementation of ML pipelines, APIs, and data integration workflows. Operational Excellence: Contribute to defining reusable development patterns, enforcing coding standards, and implementing MLOps best practices that support version control, performance optimisation, and maintainability. Cross-Disciplinary Collaboration: Work side-by-side with data scientists, product managers, platform engineers, and QA teams to align on technical requirements, delivery timelines, and More ❯

implementation of ML pipelines, APIs, and data integration workflows. Operational Excellence: Contribute to defining reusable development patterns, enforcing coding standards, and implementing MLOps best practices that support version control, performance optimisation, and maintainability. Cross-Disciplinary Collaboration: Work side-by-side with data scientists, product managers, platform engineers, and QA teams to align on technical requirements, delivery timelines, and More ❯

implementation of ML pipelines, APIs, and data integration workflows. Operational Excellence: Contribute to defining reusable development patterns, enforcing coding standards, and implementing MLOps best practices that support version control, performance optimisation, and maintainability. Cross-Disciplinary Collaboration: Work side-by-side with data scientists, product managers, platform engineers, and QA teams to align on technical requirements, delivery timelines, and More ❯

implementation of ML pipelines, APIs, and data integration workflows. Operational Excellence: Contribute to defining reusable development patterns, enforcing coding standards, and implementing MLOps best practices that support version control, performance optimisation, and maintainability. Cross-Disciplinary Collaboration: Work side-by-side with data scientists, product managers, platform engineers, and QA teams to align on technical requirements, delivery timelines, and More ❯

improvements and make key architectural decisions. Experience Extensive production experience architecting and delivering complex applications with TypeScript and Node.js . Expert level GraphQL , including advanced API design, schema evolution, performance optimisation. Strong automated testing frameworks like Vitest and Playwright . Proficiency with modern DevOps tooling and cloud-native architecture, including Docker , Helm , Kubernetes . Proven ability to lead technical More ❯

complex areas of the platform and ensure solutions are robust, secure, and scalable. Write automated and manual tests to guarantee code quality. Contribute to database and infrastructure design, including performance optimisation. Run code reviews and share knowledge with teammates. Collaborate with stakeholders to translate business needs into efficient technical solutions. Essential Skills 5+ years experience with Laravel 5+ years More ❯

building robust data extraction, transformation, and analysis pipelines. Hands-on experience with big data processing frameworks such as Apache Spark, Databricks, or Snowflake, with a focus on scalability and performance optimization. PREFERRED QUALIFICATIONS: Solid understanding of cloud infrastructure, particularly AWS, with practical experience using Docker, Kubernetes, and implementing CI/CD pipelines for data workflows. Familiarity with graph databases More ❯

part of the creative team, you’ll collaborate with artists, designers, and developers to create stunning game visuals using tools like PixiJS. Your focus will be on developing high-performance, interactive applications that deliver an immersive gaming experience. You will also work to optimise these applications for smooth gameplay across various platforms.Join a leading UK-based gaming provider who … bring game visuals and interactions to life. Collaborate with artists, designers, and other developers to ensure smooth and engaging gameplay experiences. Write clean, maintainable code with a focus on performance and efficiency. Troubleshoot, debug, and continually improve applications for optimal performance across different platforms. Key Skills and Experience: Strong proficiency in JavaScript and TypeScript. Experience with PixiJS or … other 2D rendering libraries. Experience developing graphical applications or interactive media for web browsers. Solid understanding of HTML5, CSS3, and web graphics. Familiarity with game development frameworks and performance optimisation techniques. Who We’re Looking For: A creative problem-solver with a passion for gaming and visual storytelling. A collaborative team player with excellent communication skills. Someone who More ❯

platforms now central to our customer experience, we're investing in a digital leadership role to own and evolve our websites, aligning every user interaction with the quality and performance of our products Role Overview We are seeking a Head of Web Design to lead the visual design, UX structure, and ongoing performance optimisation of our digital … branding and user experience across platforms Lead all visual implementation in HTML/CSS within a CMS environment — executing updates and mentoring others on standards and execution Analyse site performance and behaviour using tools like GA4, Hotjar, and Clarity — making data-backed design recommendations and reporting clearly to stakeholders Collaborate closely with marketing and product teams to drive engagement … retention, and lead conversion through visual and UX improvements Ensure WCAG accessibility, responsive behaviour, and mobile performance across all screen sizes Manage and QA all design output across key digital pages and product experiences Introduce creative process improvements and AI-driven tools (e.g. image generation, layout ideation, GPT-assisted editing) to streamline output and reduce repetitive tasks What We More ❯

designers, back-end developers, and product teams to deliver high-quality features Writing clean, maintainable code and collaborating through Git and version control workflows Applying best practices around accessibility, performance, and cross-browser compatibility Participating in agile development processes and regular sprint planning What youll need 2+ years of commercial experience in front-end development Solid experience with React … methodologies Strong understanding of ES6+ JavaScript Familiarity with npm, Webpack, NVM, and other build tools Experience with Redux, Redux Toolkit, or advanced state management Understanding of SEO basics and performance optimisation techniques Exposure to Node.js for front-end tooling or integrations Experience with CMS platforms like Umbraco, Episerver, or Drupal Awareness of front-end security considerations and best More ❯

testing platform , working closely with structurers and front office stakeholders. The position offers direct business interaction, exposure to real-world trading problems, and the opportunity to build robust, high-performance solutions in a dynamic environment. Responsibilities Develop and enhance Python-based models for: Historical index back-testing Daily pricing and index level generation Weighting and rebalancing logic Basket decomposition … with Flask or FastAPI for API development. Proficiency in time-series data manipulation and back-testing methods. Experience working with large datasets and real-time data pipelines . Strong performance optimisation and debugging skills. Confident communicator with the ability to liaise directly with business stakeholders. Desirable Skills Experience in commodities indices, structured products, or index engineering . Knowledge More ❯

testing platform , working closely with structurers and front office stakeholders. The position offers direct business interaction, exposure to real-world trading problems, and the opportunity to build robust, high-performance solutions in a dynamic environment. Responsibilities Develop and enhance Python-based models for: Historical index back-testing Daily pricing and index level generation Weighting and rebalancing logic Basket decomposition … with Flask or FastAPI for API development. Proficiency in time-series data manipulation and back-testing methods. Experience working with large datasets and real-time data pipelines . Strong performance optimisation and debugging skills. Confident communicator with the ability to liaise directly with business stakeholders. Desirable Skills Experience in commodities indices, structured products, or index engineering . Knowledge More ❯

and code versioning tools (e.g., GitHub) Familiarity with Shopify Plus, APIs, 3rd party integrations, and theme build tools (Vite.js, Webpack) Solid understanding of accessibility standards (WCAG), GDPR, PCI, and performance optimisation Experience in Agile environments and potentially acting as a Scrum Master is a plus Commitment to mentoring developers and maintaining clean, maintainable codebases Why join? Competitive More ❯

maintenance of the PowerApps platform Identify and manage problems, incidents, risks and issues Build automated tests to support our continuous deployment environments Implement APIs for purposes such as integration, performance optimisation, security and scalability Understanding yourself to be a leader (and the impact of your behaviour on others in a project team focused on results) Work alongside the More ❯

maintenance of the PowerApps platform Identify and manage problems, incidents, risks and issues Build automated tests to support our continuous deployment environments Implement APIs for purposes such as integration, performance optimisation, security and scalability Understanding yourself to be a leader (and the impact of your behaviour on others in a project team focused on results) Work alongside the More ❯

multi-disciplinary team to deliver highly user focused and successful digital services ensuring governance standards are adhered to Assist in implementing toolkits and APIs for purposes such as integration, performance optimisation, security and scalability Keeping an open mind and exploring innovative ways to solve problems, working in a fail-fast fashion to provide required functionality Embrace a continuous More ❯

multi-disciplinary team to deliver highly user focused and successful digital services ensuring governance standards are adhered to Assist in implementing toolkits and APIs for purposes such as integration, performance optimisation, security and scalability Keeping an open mind and exploring innovative ways to solve problems, working in a fail-fast fashion to provide required functionality Embrace a continuous More ❯

Strong proficiency in Pandas , NumPy , and time-series data manipulation Proven experience with FastAPI or Flask Familiarity with large datasets and real-time data pipelines Excellent debugging, profiling, and performance optimization skills Strong communication skills and ability to work with non-technical stakeholders Preferred Skills Experience with commodities indices or structured products Knowledge of market data platforms (e.g., Bloomberg More ❯

C#/.NET development for cloud-based solutions ARM templates for IaC (Infrastructure as Code) Azure DevOps (pipelines, repos, automated testing) Strong understanding of integration patterns, cloud security, and performance optimization. Excellent problem-solving skills and a collaborative mindset. Experience in an Agile environment. More ❯

Python and SQL skills for ETL/ELT processes. Experience with CI/CD pipelines and automated testing in data workflows. Knowledge of data governance, security best practices, and performance optimisation. Confident working directly with clients, translating business needs into technical solutions. Leadership experience within delivery teams. What you get? Salary from £70k (negotiable) + bonus. 20 dedicated development More ❯

build scalable backend services in C#/.NET Drive adoption of clean coding practices, design patterns, and SOLID principles Mentor engineers, fostering a culture of growth, learning, and high performance Collaborate with product owners to refine requirements and translate them into technical solutions Integrate automation testing (Playwright) and CI/CD pipelines to ensure code quality Lead technical discussions … setting direction on tools, frameworks, and approaches Troubleshoot and resolve complex technical challenges across backend services Optimise system performance and ensure resilience across platforms Review code and guide engineering standards across the team Contribute to product strategy by aligning technical roadmaps with business goals What you bring to the team Strong experience developing backend systems with C# and .NET … APIs and microservices at scale Solid understanding of automation testing tools (Playwright desirable) Leadership experience - mentoring, coaching, and guiding engineering teams Strong problem-solving skills with an eye for performance optimisation Enthusiasm for delivering quality solutions in a SaaS environment Send your CV now to 50249MS INDMANS More ❯

build scalable backend services in C#/.NET Drive adoption of clean coding practices, design patterns, and SOLID principles Mentor engineers, fostering a culture of growth, learning, and high performance Collaborate with product owners to refine requirements and translate them into technical solutions Integrate automation testing (Playwright) and CI/CD pipelines to ensure code quality Lead technical discussions … setting direction on tools, frameworks, and approaches Troubleshoot and resolve complex technical challenges across backend services Optimise system performance and ensure resilience across platforms Review code and guide engineering standards across the team Contribute to product strategy by aligning technical roadmaps with business goals What you bring to the team Strong experience developing backend systems with C# and .NET … APIs and microservices at scale Solid understanding of automation testing tools (Playwright desirable) Leadership experience - mentoring, coaching, and guiding engineering teams Strong problem-solving skills with an eye for performance optimisation Enthusiasm for delivering quality solutions in a SaaS environment Send your CV now to (url removed) 50249MS INDMANS More ❯

Global Software House - Peterborough/Hybrid (Tech stack: Lead Database Developer, SQL Developer, Database Developer, SQL Server 2017, T-SQL, SSIS, SSRS, SSAS, Business Intelligence, OLTP Systems, BI, OLAP, Performance Optimisation, Distributed Transactions, SaaS, Cloud Platforms (AWS/Azure/GCP), Data Warehouse, SQL Developer) Do you want to work for an internationally recognised brand? Do you want … fabulous opportunity to join a spectacular organization; one that offers a structured career progression programme, excellent training, exquisite offices and amazing benefits. All positions come with the following benefits: Performance-based Bonus 28 days holiday (plus 8 UK Bank Holidays). Flexible working hours Hybrid Working Policy. Health & Life Insurance Training allowance And much more Location: Peterborough, UK/ More ❯