Performance Optimisation Jobs in England

101 to 125 of 697 Performance Optimisation Jobs in England

Artificial Intelligence Engineer

slough, south east england, united kingdom
Searchability®
email: jordanna.ramsey@searchability.com THE OPPORTUNITY A new contract opportunity for an AI Engineer to join a cutting-edge AI Sports company revolutionising how data and machine learning drive athletic performance, fan engagement, and predictive analytics in the sports industry. You’ll be part of a highly skilled R&D team building next-generation AI solutions for real-time insights … performance optimisation, and immersive sports analytics. THE ROLE Design, develop, and deploy AI/ML models focused on sports analytics, predictive modelling, and computer vision. Collaborate with data scientists, software engineers, and sports analysts to translate real-world data into actionable insights. Optimise AI systems for real-time environments, integrating with live data feeds and cloud infrastructure. Research More ❯
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Artificial Intelligence Engineer

london (city of london), south east england, united kingdom
Searchability®
email: jordanna.ramsey@searchability.com THE OPPORTUNITY A new contract opportunity for an AI Engineer to join a cutting-edge AI Sports company revolutionising how data and machine learning drive athletic performance, fan engagement, and predictive analytics in the sports industry. You’ll be part of a highly skilled R&D team building next-generation AI solutions for real-time insights … performance optimisation, and immersive sports analytics. THE ROLE Design, develop, and deploy AI/ML models focused on sports analytics, predictive modelling, and computer vision. Collaborate with data scientists, software engineers, and sports analysts to translate real-world data into actionable insights. Optimise AI systems for real-time environments, integrating with live data feeds and cloud infrastructure. Research More ❯
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Website Experience Manager

England, United Kingdom
Nscale
touchpoints, and partner experiences - into a high-performing platform that tells our story, drives engagement, and supports global growth. The ideal candidate combines technical expertise in SEO, analytics, and performance optimisation with a strategic understanding of user experience and content discoverability. You know how to make complex technology simple to find, understand, and trust -and how to operationalise … properties - such as microsites, landing pages portals - in collaboration with Design, Product, and Engineering. Own analytics and experimentation frameworks across GA4, GSC, and Tag Manager, building dashboards that track performance and engagement across all properties. Run structured CRO and UX experiments to improve conversion rates, site performance, and user flows. Partner with Product, Sales, and Communications to align … and the integration of CRM and marketing automation tools. Develop and implement SEO architecture, schema, and content frameworks that maximise visibility, authority, and conversion. Champion accessibility, compliance, and site performance standards that scale with Nscale’s global growth. Qualifications 8 years of experience managing large-scale, performance-driven websites within enterprise technology or B2B SaaS environments. Strong expertise More ❯
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Lead DevOps Engineer

England, United Kingdom
Hybrid / WFH Options
Fruition Group
platform modernisation Manage a small team of engineers Align DevOps capabilities with the wider business Champion DevEx, reliability, and security Embed operational excellence and incident response Promote observability and performance optimisation Lead DevOps Engineer Requirements Proven line management experience Cloud-native expertise (any cloud provider is fine: GCP, AWS or Azure) Knowledge of GitLab CI/CD, Terraform More ❯
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Software Solutions Engineer

London, United Kingdom
driven architectures. Skilled in Git-based version control and implementing automated CI/CD pipelines (Azure DevOps, GitHub Actions). Understanding of solution architecture principles including scalability, security, and performance optimization. Experience with Generative AI technologies, LLMs, and RAG techniques is advantageous. Front-end development experience with React, Angular, or Vue.js is desirable. The Software Solutions Engineer package: Up More ❯
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Senior Developer

Walton Hall, Milton Keynes, Buckinghamshire, England, United Kingdom
Hybrid / WFH Options
Pertmeps Warwick County Council
marketing to translate user and business requirements into effective technical solutions.- Manage data structures and workflows, ensuring effective segmentation, automation and analytics.- Support operational stability, including incident resolution and performance optimisation.- Provide guidance and mentoring to colleagues, encouraging shared learning and best practice.Candidate ProfileEssential Experience & Skills:- Strong hands-on experience developing within Salesforce Marketing Cloud.- Proficiency in programming and More ❯
Employment Type: Full-Time
Salary: £47,389 - £56,535 per annum
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Senior Developer

Buckinghamshire, United Kingdom
Hybrid / WFH Options
Pertemps Contracts
marketing to translate user and business requirements into effective technical solutions. - Manage data structures and workflows, ensuring effective segmentation, automation and analytics. - Support operational stability, including incident resolution and performance optimisation. - Provide guidance and mentoring to colleagues, encouraging shared learning and best practice. Candidate Profile Essential Experience & Skills: - Strong hands-on experience developing within Salesforce Marketing Cloud. - Proficiency in More ❯
Employment Type: Permanent
Salary: GBP 47,389 - 56,535 Annual
Posted:

Senior Javascript Engineer

Manchester, England, United Kingdom
talego
based environments, particularly AWS (e.g., Lambda, DynamoDB, S3, etc.). Familiarity with modern CI/CD pipelines and infrastructure as code (IaC) tools. Deep understanding of scalable architecture and performance optimisation. Excellent problem-solving skills and a proactive mindset. Passion for improving healthcare outcomes through tech. Desirable: Experience with HealthTech or SaaS platforms. Knowledge of compliance frameworks (e.g., GDPR More ❯
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Senior Javascript Engineer

bolton, greater manchester, north west england, united kingdom
talego
based environments, particularly AWS (e.g., Lambda, DynamoDB, S3, etc.). Familiarity with modern CI/CD pipelines and infrastructure as code (IaC) tools. Deep understanding of scalable architecture and performance optimisation. Excellent problem-solving skills and a proactive mindset. Passion for improving healthcare outcomes through tech. Desirable: Experience with HealthTech or SaaS platforms. Knowledge of compliance frameworks (e.g., GDPR More ❯
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Senior Javascript Engineer

warrington, cheshire, north west england, united kingdom
talego
based environments, particularly AWS (e.g., Lambda, DynamoDB, S3, etc.). Familiarity with modern CI/CD pipelines and infrastructure as code (IaC) tools. Deep understanding of scalable architecture and performance optimisation. Excellent problem-solving skills and a proactive mindset. Passion for improving healthcare outcomes through tech. Desirable: Experience with HealthTech or SaaS platforms. Knowledge of compliance frameworks (e.g., GDPR More ❯
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Principal JavaScript Performance Engineer (with C++ / Java / C# exposure) - London

City of London, London, United Kingdom
Hybrid / WFH Options
techstack Recruitment
Principal JavaScript Performance Engineer (with C++/Java/C# exposure) Location: London (Hybrid – 2 days WFH) Salary: £150,000 - £200,000 (Permanent)pension, private healthcare, gym membership, 25 days + 8 BH holiday allowance, tech/hardware budget. A high-growth software company is building the gold standard in UI frameworks and data-intensive visualisation technology . With … of what’s possible in the browser — solving problems of scale, speed, and complexity that ordinary web development never touches. What you’ll do Design and optimise a high-performance UI framework used globally in real-time applications. Push the limits of JavaScript, TypeScript, and the browser runtime to handle millions of data points smoothly. Solve deep algorithmic and … and enterprises worldwide. What you’ll bring Mastery of vanilla JavaScript and TypeScript , with additional exposure to C++, Java, or C# . Strong knowledge of data structures, algorithms, and performance optimisation . Experience with frameworks like React, Angular, or Vue , and a deep understanding of DOM internals and rendering pipelines . A systems-level mindset : diagnosing bottlenecks, eliminating More ❯
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Principal JavaScript Performance Engineer (with C++ / Java / C# exposure) - London

London Area, United Kingdom
Hybrid / WFH Options
techstack Recruitment
Principal JavaScript Performance Engineer (with C++/Java/C# exposure) Location: London (Hybrid – 2 days WFH) Salary: £150,000 - £200,000 (Permanent)pension, private healthcare, gym membership, 25 days + 8 BH holiday allowance, tech/hardware budget. A high-growth software company is building the gold standard in UI frameworks and data-intensive visualisation technology . With … of what’s possible in the browser — solving problems of scale, speed, and complexity that ordinary web development never touches. What you’ll do Design and optimise a high-performance UI framework used globally in real-time applications. Push the limits of JavaScript, TypeScript, and the browser runtime to handle millions of data points smoothly. Solve deep algorithmic and … and enterprises worldwide. What you’ll bring Mastery of vanilla JavaScript and TypeScript , with additional exposure to C++, Java, or C# . Strong knowledge of data structures, algorithms, and performance optimisation . Experience with frameworks like React, Angular, or Vue , and a deep understanding of DOM internals and rendering pipelines . A systems-level mindset : diagnosing bottlenecks, eliminating More ❯
Posted:

Principal JavaScript Performance Engineer (with C++ / Java / C# exposure) - London

london, south east england, united kingdom
Hybrid / WFH Options
techstack Recruitment
Principal JavaScript Performance Engineer (with C++/Java/C# exposure) Location: London (Hybrid – 2 days WFH) Salary: £150,000 - £200,000 (Permanent)pension, private healthcare, gym membership, 25 days + 8 BH holiday allowance, tech/hardware budget. A high-growth software company is building the gold standard in UI frameworks and data-intensive visualisation technology . With … of what’s possible in the browser — solving problems of scale, speed, and complexity that ordinary web development never touches. What you’ll do Design and optimise a high-performance UI framework used globally in real-time applications. Push the limits of JavaScript, TypeScript, and the browser runtime to handle millions of data points smoothly. Solve deep algorithmic and … and enterprises worldwide. What you’ll bring Mastery of vanilla JavaScript and TypeScript , with additional exposure to C++, Java, or C# . Strong knowledge of data structures, algorithms, and performance optimisation . Experience with frameworks like React, Angular, or Vue , and a deep understanding of DOM internals and rendering pipelines . A systems-level mindset : diagnosing bottlenecks, eliminating More ❯
Posted:

Principal JavaScript Performance Engineer (with C++ / Java / C# exposure) - London

slough, south east england, united kingdom
Hybrid / WFH Options
techstack Recruitment
Principal JavaScript Performance Engineer (with C++/Java/C# exposure) Location: London (Hybrid – 2 days WFH) Salary: £150,000 - £200,000 (Permanent)pension, private healthcare, gym membership, 25 days + 8 BH holiday allowance, tech/hardware budget. A high-growth software company is building the gold standard in UI frameworks and data-intensive visualisation technology . With … of what’s possible in the browser — solving problems of scale, speed, and complexity that ordinary web development never touches. What you’ll do Design and optimise a high-performance UI framework used globally in real-time applications. Push the limits of JavaScript, TypeScript, and the browser runtime to handle millions of data points smoothly. Solve deep algorithmic and … and enterprises worldwide. What you’ll bring Mastery of vanilla JavaScript and TypeScript , with additional exposure to C++, Java, or C# . Strong knowledge of data structures, algorithms, and performance optimisation . Experience with frameworks like React, Angular, or Vue , and a deep understanding of DOM internals and rendering pipelines . A systems-level mindset : diagnosing bottlenecks, eliminating More ❯
Posted:

Principal JavaScript Performance Engineer (with C++ / Java / C# exposure) - London

london (city of london), south east england, united kingdom
Hybrid / WFH Options
techstack Recruitment
Principal JavaScript Performance Engineer (with C++/Java/C# exposure) Location: London (Hybrid – 2 days WFH) Salary: £150,000 - £200,000 (Permanent)pension, private healthcare, gym membership, 25 days + 8 BH holiday allowance, tech/hardware budget. A high-growth software company is building the gold standard in UI frameworks and data-intensive visualisation technology . With … of what’s possible in the browser — solving problems of scale, speed, and complexity that ordinary web development never touches. What you’ll do Design and optimise a high-performance UI framework used globally in real-time applications. Push the limits of JavaScript, TypeScript, and the browser runtime to handle millions of data points smoothly. Solve deep algorithmic and … and enterprises worldwide. What you’ll bring Mastery of vanilla JavaScript and TypeScript , with additional exposure to C++, Java, or C# . Strong knowledge of data structures, algorithms, and performance optimisation . Experience with frameworks like React, Angular, or Vue , and a deep understanding of DOM internals and rendering pipelines . A systems-level mindset : diagnosing bottlenecks, eliminating More ❯
Posted:

Shopify Technical Lead

London, South East, England, United Kingdom
Hybrid / WFH Options
Salt Search
provide hands-on technical leadership and mentor development teams Familiar with Shopify Plus , multi-store setups, and internationalisation Experience with build tools like Vite.js , Webpack, or similar Understanding of performance optimisation (Core Web Vitals, asset loading) Bonus: Familiarity with Fiori , Polaris, Storefront/Dev MCP, and accessibility standards (WCAG) What's in it for you? Fully remote setup … UK or EU-based) Up to £70,000 salary + performance-related incentives Access to cutting-edge tools , team training, and knowledge-sharing sessions Clear career development path within a growing Shopify team A genuinely supportive, people-first culture How to Apply If you're a seasoned Shopify developer ready to take the lead, apply now with your CV More ❯
Employment Type: Full-Time
Salary: Salary negotiable
Posted:

Web Developer

Swindon, Wiltshire, England, United Kingdom
Hybrid / WFH Options
Noir
Web Developer - SaaS - Swindon (Hybrid, 3 Days in Office) (Tech stack: Web Developer, .NET Framework, WebForms, ASP.NET MVC, React, TypeScript, SCSS, Accessibility, API Integration, Performance Optimisation, Testing, Front End Developer) Our client is an established technology business that builds and maintains sophisticated digital platforms used across multiple sectors. They're embarking on a major UI modernisation programme, evolving … and error handling. Develop and maintain a reusable component library and manage CSS architecture, responsive layouts, and theming. Ensure accessibility and semantic HTML standards are met. Optimise front-end performance, applying modern best practices. Implement client-side authentication flows and manage secure sessions. Write and maintain front-end tests covering key user journeys. Own and maintain front-end tooling … state management. Deep understanding of HTML5, CSS3, modern JavaScript/TypeScript, responsive design, and browser behaviour. Hands-on experience with accessibility standards (WCAG), semantic markup, and ARIA. Knowledge of performance tuning techniques including lazy loading, code splitting, and asset optimisation. Experience consuming secure REST APIs from the browser. Familiarity with front-end testing frameworks such as Jest, React Testing More ❯
Employment Type: Full-Time
Salary: £35,000 - £40,000 per annum
Posted:

Backend Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Fynity
JavaScript) and ability to work full-stack when required. Ability to write clear, maintainable and well-documented code. Desired skills: Experience managing hosting environments and deployment workflows. Knowledge of performance optimisation and caching strategies. Familiarity with Composer and modern PHP development practices. Experience with e-commerce functionality within Craft Commerce. What you’ll be expected to do: Develop … custom plugins and integrations with external APIs and services. Collaborate with project managers, designers, and front-end developers to deliver technically sound solutions. Support and troubleshoot existing sites, identifying performance, security or architectural improvements. Contribute to the evolution of our development processes and best practices. Participate in internal reviews, team discussions and (virtual) social events. If you are interested More ❯
Employment Type: Full-Time
Salary: £38,000 - £48,000 per annum
Posted:

Chief Technology Officer (CTO) - Hands-On Back-End Developer

London, United Kingdom
Morris Sinclair Recruitment
improve farm economics, productivity, and environmental impact . Key Responsibilities Lead technical strategy and oversee architecture for scalable, data-driven systems. Remain actively hands-on , designing and developing high-performance C#/.NET back-end systems . Mentor and guide a growing team of developers setting technical standards and driving best practices. Oversee end-to-end solution delivery, ensuring … performance, security, and maintainability. Collaborate cross-functionally with data scientists, agronomists, and stakeholders to shape product direction. Own cloud infrastructure strategy and implementation on Microsoft Azure . Lead innovation in sustainability-focused agricultural technology and analytics . Contribute to recruitment and technical assessment (including coding challenge design and review). Candidate Assessment Process Our selection process includes a LeetCode … style technical challenge to evaluate: Algorithmic problem-solving Data structures and computational efficiency Code quality and optimisation under time constraints Ideal Candidate Profile Academic and Professional Background Degree/Masters/PhD in Computer Science, Data Science, or a related discipline Proven experience as a Back-End Developer/Engineering Lead/CTO in data-heavy environments Demonstrable history More ❯
Employment Type: Permanent
Salary: GBP 80,000 - 150,000 Annual
Posted:

Chief Technology Officer (CTO) - Hands-On Back-End Developer

REMOTE, St James's Square, Greater London, United Kingdom
Hybrid / WFH Options
Morris Sinclair Recruitment
improve farm economics, productivity, and environmental impact . Key Responsibilities Lead technical strategy and oversee architecture for scalable, data-driven systems. Remain actively hands-on , designing and developing high-performance C#/.NET back-end systems . Mentor and guide a growing team of developers — setting technical standards and driving best practices. Oversee end-to-end solution delivery, ensuring … performance, security, and maintainability. Collaborate cross-functionally with data scientists, agronomists, and stakeholders to shape product direction. Own cloud infrastructure strategy and implementation on Microsoft Azure . Lead innovation in sustainability-focused agricultural technology and analytics . Contribute to recruitment and technical assessment (including coding challenge design and review). Candidate Assessment Process Our selection process includes a LeetCode … style technical challenge to evaluate: Algorithmic problem-solving Data structures and computational efficiency Code quality and optimisation under time constraints Ideal Candidate Profile Academic and Professional Background Degree/Masters/PhD in Computer Science, Data Science, or a related discipline Proven experience as a Back-End Developer/Engineering Lead/CTO in data-heavy environments Demonstrable history More ❯
Employment Type: Permanent
Salary: £80000 - £150000/annum
Posted:

Chief Technology Officer CTO - Hands-On Back-End Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
MORRIS SINCLAIR RECRUITMENT LTD
improve farm economics, productivity, and environmental impact . Key Responsibilities Lead technical strategy and oversee architecture for scalable, data-driven systems. Remain actively hands-on , designing and developing high-performance C#/.NET back-end systems . Mentor and guide a growing team of developers — setting technical standards and driving best practices. Oversee end-to-end solution delivery, ensuring … performance, security, and maintainability. Collaborate cross-functionally with data scientists, agronomists, and stakeholders to shape product direction. Own cloud infrastructure strategy and implementation on Microsoft Azure . Lead innovation in sustainability-focused agricultural technology and analytics . Contribute to recruitment and technical assessment (including coding challenge design and review). Candidate Assessment Process Our selection process includes a LeetCode … style technical challenge to evaluate: Algorithmic problem-solving Data structures and computational efficiency Code quality and optimisation under time constraints Ideal Candidate Profile Academic and Professional Background Degree/Masters/PhD in Computer Science, Data Science, or a related discipline Proven experience as a Back-End Developer/Engineering Lead/CTO in data-heavy environments Demonstrable history More ❯
Employment Type: Full-Time
Salary: £80,000 - £150,000 per annum
Posted:

Connectivity Solutions Architect

Theale, Berkshire, UK
Hybrid / WFH Options
Cornerstone
internal stakeholders, engineering teams, and external technology partners to align designs with business objectives and industry standards. Delivery Deliver scalable and secure 5G/Open RAN solutions that meet performance, reliability, and compliance standards. Provide architecture documentation, design specifications, and technical recommendations to support deployment and operational teams. Ensure integration of multi-vendor components is robust, optimised, and interoperable … across the full RAN stack. Conduct RF planning, system modelling, and performance analysis to optimise coverage, capacity, and quality of service. Translate complex technical designs into practical solutions that enable efficient deployment and long-term maintainability. Role Expertise In-depth knowledge of wireless network architecture, particularly 5G SA, Open RAN, and vRAN/xRAN technologies. Strong expertise in cloud … standardised frameworks. Proficiency in evaluating fronthaul/midhaul/backhaul interfaces, with practical experience in O-RAN Split 7.2x. Hands-on skills in RF planning, propagation modelling, and system performance optimisation using industry-standard tools. Strong problem-solving, stakeholder management, and communication skills, with the ability to lead technical discussions and influence design decisions. Prior experience in advanced More ❯
Employment Type: Part-time
Posted:

Connectivity Solutions Architect

Theale, England, United Kingdom
Hybrid / WFH Options
Cornerstone
internal stakeholders, engineering teams, and external technology partners to align designs with business objectives and industry standards. Delivery Deliver scalable and secure 5G/Open RAN solutions that meet performance, reliability, and compliance standards. Provide architecture documentation, design specifications, and technical recommendations to support deployment and operational teams. Ensure integration of multi-vendor components is robust, optimised, and interoperable … across the full RAN stack. Conduct RF planning, system modelling, and performance analysis to optimise coverage, capacity, and quality of service. Translate complex technical designs into practical solutions that enable efficient deployment and long-term maintainability. Role Expertise In-depth knowledge of wireless network architecture, particularly 5G SA, Open RAN, and vRAN/xRAN technologies. Strong expertise in cloud … standardised frameworks. Proficiency in evaluating fronthaul/midhaul/backhaul interfaces, with practical experience in O-RAN Split 7.2x. Hands-on skills in RF planning, propagation modelling, and system performance optimisation using industry-standard tools. Strong problem-solving, stakeholder management, and communication skills, with the ability to lead technical discussions and influence design decisions. Prior experience in advanced More ❯
Posted:

Connectivity Solutions Architect

Theale, south west england, united kingdom
Hybrid / WFH Options
Cornerstone
internal stakeholders, engineering teams, and external technology partners to align designs with business objectives and industry standards. Delivery Deliver scalable and secure 5G/Open RAN solutions that meet performance, reliability, and compliance standards. Provide architecture documentation, design specifications, and technical recommendations to support deployment and operational teams. Ensure integration of multi-vendor components is robust, optimised, and interoperable … across the full RAN stack. Conduct RF planning, system modelling, and performance analysis to optimise coverage, capacity, and quality of service. Translate complex technical designs into practical solutions that enable efficient deployment and long-term maintainability. Role Expertise In-depth knowledge of wireless network architecture, particularly 5G SA, Open RAN, and vRAN/xRAN technologies. Strong expertise in cloud … standardised frameworks. Proficiency in evaluating fronthaul/midhaul/backhaul interfaces, with practical experience in O-RAN Split 7.2x. Hands-on skills in RF planning, propagation modelling, and system performance optimisation using industry-standard tools. Strong problem-solving, stakeholder management, and communication skills, with the ability to lead technical discussions and influence design decisions. Prior experience in advanced More ❯
Posted:

Connectivity Solutions Architect

theale, south east england, united kingdom
Hybrid / WFH Options
Cornerstone
internal stakeholders, engineering teams, and external technology partners to align designs with business objectives and industry standards. Delivery Deliver scalable and secure 5G/Open RAN solutions that meet performance, reliability, and compliance standards. Provide architecture documentation, design specifications, and technical recommendations to support deployment and operational teams. Ensure integration of multi-vendor components is robust, optimised, and interoperable … across the full RAN stack. Conduct RF planning, system modelling, and performance analysis to optimise coverage, capacity, and quality of service. Translate complex technical designs into practical solutions that enable efficient deployment and long-term maintainability. Role Expertise In-depth knowledge of wireless network architecture, particularly 5G SA, Open RAN, and vRAN/xRAN technologies. Strong expertise in cloud … standardised frameworks. Proficiency in evaluating fronthaul/midhaul/backhaul interfaces, with practical experience in O-RAN Split 7.2x. Hands-on skills in RF planning, propagation modelling, and system performance optimisation using industry-standard tools. Strong problem-solving, stakeholder management, and communication skills, with the ability to lead technical discussions and influence design decisions. Prior experience in advanced More ❯
Posted:
Performance Optimisation
England
10th Percentile
£50,100
25th Percentile
£63,750
Median
£77,500
75th Percentile
£95,000
90th Percentile
£120,000