251 to 275 of 745 Performance Optimisation Jobs in England

paced product team delivering impactful mobile experiences to a global user base. What you’ll do Build and maintain robust mobile apps using React Native and Expo Optimise app performance, implement modern architecture patterns, and handle push notifications, offline-first features, and state management Collaborate on backend APIs (REST or GraphQL) and integrate secure authentication methods - JWT, OAuth Deploy … deployment processes Experience with database design (SQL or NoSQL) and backend integrations Proven AWS deployment experience and familiarity with Infrastructure as Code (CDK) Knowledge of monitoring, logging, and application performance optimisation Why Apply? Outside IR35, long-term contract with genuine extension potential High-value project Opportunity to influence software adoption at global scale Flexibility to work remotely within More ❯

accessible, and high-performing site in Webflow, translating designs from Figma into polished web experiences. You’ll manage Webflow’s CMS, implement animations and interactions, optimise for SEO and performance, and collaborate closely with brand and marketing teams to ensure a seamless and engaging digital journey for users. If you’re someone who thrives in a creative yet structured … concepts to life Working knowledge of HTML, CSS, and JavaScript for custom tweaks and integrations Understanding of UX/UI best practices, accessibility, and responsive design Awareness of SEO, performance optimisation, and API integrations Excellent organisation and time management skills, with the ability to balance multiple projects Experience within a regulated or financial services environment would be beneficial More ❯

accessible, and high-performing site in Webflow, translating designs from Figma into polished web experiences. You’ll manage Webflow’s CMS, implement animations and interactions, optimise for SEO and performance, and collaborate closely with brand and marketing teams to ensure a seamless and engaging digital journey for users. If you’re someone who thrives in a creative yet structured … concepts to life Working knowledge of HTML, CSS, and JavaScript for custom tweaks and integrations Understanding of UX/UI best practices, accessibility, and responsive design Awareness of SEO, performance optimisation, and API integrations Excellent organisation and time management skills, with the ability to balance multiple projects Experience within a regulated or financial services environment would be beneficial More ❯

accessible, and high-performing site in Webflow, translating designs from Figma into polished web experiences. You’ll manage Webflow’s CMS, implement animations and interactions, optimise for SEO and performance, and collaborate closely with brand and marketing teams to ensure a seamless and engaging digital journey for users. If you’re someone who thrives in a creative yet structured … concepts to life Working knowledge of HTML, CSS, and JavaScript for custom tweaks and integrations Understanding of UX/UI best practices, accessibility, and responsive design Awareness of SEO, performance optimisation, and API integrations Excellent organisation and time management skills, with the ability to balance multiple projects Experience within a regulated or financial services environment would be beneficial More ❯

accessible, and high-performing site in Webflow, translating designs from Figma into polished web experiences. You’ll manage Webflow’s CMS, implement animations and interactions, optimise for SEO and performance, and collaborate closely with brand and marketing teams to ensure a seamless and engaging digital journey for users. If you’re someone who thrives in a creative yet structured … concepts to life Working knowledge of HTML, CSS, and JavaScript for custom tweaks and integrations Understanding of UX/UI best practices, accessibility, and responsive design Awareness of SEO, performance optimisation, and API integrations Excellent organisation and time management skills, with the ability to balance multiple projects Experience within a regulated or financial services environment would be beneficial More ❯

accessible, and high-performing site in Webflow, translating designs from Figma into polished web experiences. You’ll manage Webflow’s CMS, implement animations and interactions, optimise for SEO and performance, and collaborate closely with brand and marketing teams to ensure a seamless and engaging digital journey for users. If you’re someone who thrives in a creative yet structured … concepts to life Working knowledge of HTML, CSS, and JavaScript for custom tweaks and integrations Understanding of UX/UI best practices, accessibility, and responsive design Awareness of SEO, performance optimisation, and API integrations Excellent organisation and time management skills, with the ability to balance multiple projects Experience within a regulated or financial services environment would be beneficial More ❯

build cutting edge frontend systems for Fixed Income eTrading including Rates, Credit, and Bonds. You'll work closely with world-class technologists and domain experts to deliver scalable, high-performance UIs that support real-time trading and analytics. Key Responsibilities Design and develop responsive, low-latency front-end trading systems using React. Build dashboards and visualisation tools for Fixed … Income market data and trade execution. Collaborate with traders, quants, and back-end engineers to deliver seamless UI experiences. Contribute to architectural decisions and front-end performance tuning. Required Skills & Experience Expertise in React.js and modern JavaScript (ES6+) Proven experience delivering front-end applications in electronic trading environments Strong understanding of performance optimisation and low-latency UI More ❯

build cutting edge frontend systems for Fixed Income eTrading including Rates, Credit, and Bonds. You'll work closely with world-class technologists and domain experts to deliver scalable, high-performance UIs that support real-time trading and analytics. Key Responsibilities Design and develop responsive, low-latency front-end trading systems using React. Build dashboards and visualisation tools for Fixed … Income market data and trade execution. Collaborate with traders, quants, and back-end engineers to deliver seamless UI experiences. Contribute to architectural decisions and front-end performance tuning. Required Skills & Experience Expertise in React.js and modern JavaScript (ES6+) Proven experience delivering front-end applications in electronic trading environments Strong understanding of performance optimisation and low-latency UI More ❯

build cutting edge frontend systems for Fixed Income eTrading including Rates, Credit, and Bonds. You'll work closely with world-class technologists and domain experts to deliver scalable, high-performance UIs that support real-time trading and analytics. Key Responsibilities Design and develop responsive, low-latency front-end trading systems using React. Build dashboards and visualisation tools for Fixed … Income market data and trade execution. Collaborate with traders, quants, and back-end engineers to deliver seamless UI experiences. Contribute to architectural decisions and front-end performance tuning. Required Skills & Experience Expertise in React.js and modern JavaScript (ES6+) Proven experience delivering front-end applications in electronic trading environments Strong understanding of performance optimisation and low-latency UI More ❯

build cutting edge frontend systems for Fixed Income eTrading including Rates, Credit, and Bonds. You'll work closely with world-class technologists and domain experts to deliver scalable, high-performance UIs that support real-time trading and analytics. Key Responsibilities Design and develop responsive, low-latency front-end trading systems using React. Build dashboards and visualisation tools for Fixed … Income market data and trade execution. Collaborate with traders, quants, and back-end engineers to deliver seamless UI experiences. Contribute to architectural decisions and front-end performance tuning. Required Skills & Experience Expertise in React.js and modern JavaScript (ES6+) Proven experience delivering front-end applications in electronic trading environments Strong understanding of performance optimisation and low-latency UI More ❯

build cutting edge frontend systems for Fixed Income eTrading including Rates, Credit, and Bonds. You'll work closely with world-class technologists and domain experts to deliver scalable, high-performance UIs that support real-time trading and analytics. Key Responsibilities Design and develop responsive, low-latency front-end trading systems using React. Build dashboards and visualisation tools for Fixed … Income market data and trade execution. Collaborate with traders, quants, and back-end engineers to deliver seamless UI experiences. Contribute to architectural decisions and front-end performance tuning. Required Skills & Experience Expertise in React.js and modern JavaScript (ES6+) Proven experience delivering front-end applications in electronic trading environments Strong understanding of performance optimisation and low-latency UI More ❯

build cutting edge frontend systems for Fixed Income eTrading including Rates, Credit, and Bonds. You'll work closely with world-class technologists and domain experts to deliver scalable, high-performance UIs that support real-time trading and analytics. Key Responsibilities Design and develop responsive, low-latency front-end trading systems using React. Build dashboards and visualisation tools for Fixed … Income market data and trade execution. Collaborate with traders, quants, and back-end engineers to deliver seamless UI experiences. Contribute to architectural decisions and front-end performance tuning. Required Skills & Experience Expertise in React.js and modern JavaScript (ES6+) Proven experience delivering front-end applications in electronic trading environments Strong understanding of performance optimisation and low-latency UI 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 ❯

across numerous stakeholders and personas Working with cross-functional teams Demonstrated experience building and delivering a product or digital roadmap Ability to define/report on KPIs Post-launch optimisation & continuous improvement Maintaining content guidelines and best practices Strong leadership & interpersonal skills Mentoring and developing teams Familiarity with content delivery across multiple mediums Comfortable in Agile environments Formal Agile … and content strategy initiatives, with a focus on digital procurement systems. Apply strong product management expertise to deliver transformation and optimise user experience. Post-launch, ensure continuous improvement and performance optimisation of the system. Mentor and develop team members to build capability and resilience. Oversee content delivery across multiple formats and channels. Maintain and enforce content guidelines and More ❯

across numerous stakeholders and personas Working with cross-functional teams Demonstrated experience building and delivering a product or digital roadmap Ability to define/report on KPIs Post-launch optimisation & continuous improvement Maintaining content guidelines and best practices Strong leadership & interpersonal skills Mentoring and developing teams Familiarity with content delivery across multiple mediums Comfortable in Agile environments Formal Agile … and content strategy initiatives, with a focus on digital procurement systems. Apply strong product management expertise to deliver transformation and optimise user experience. Post-launch, ensure continuous improvement and performance optimisation of the system. Mentor and develop team members to build capability and resilience. Oversee content delivery across multiple formats and channels. Maintain and enforce content guidelines and More ❯

Commercial, and Logistics. Essential Skills & Experience: • Expert-level Power BI skills including DAX, Power Query (M), and semantic model design • Experience working with Power BI Premium and optimising for performance and scalability • Strong understanding of data architecture principles (e.g. star schema, data lakehouse environments) • Solid SQL experience for data transformation, validation, and extraction • Proven experience building reusable, governed datasets … dashboards across core business domains • Automate manual reporting processes and reduce reporting lead times • Enable self-service reporting through training, mentoring, and reusable templates • Implement RLS, workspace governance, and performance optimisation best practices • Partner with business stakeholders and Data Business Partners to translate needs into BI solutions • Validate outputs and ensure accuracy against existing reports • Champion data use 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 ❯

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 ❯

deliver real business value What we’re looking for Strong experience with Python, SQL , and pipeline tools such as dbt or Airflow Proven background in data modelling, warehousing, and performance optimisation Hands-on experience with cloud data services (Glue, Lambda, Synapse, BigQuery, etc.) A consultancy mindset – adaptable, collaborative, and delivery-focused Apply now or contact Bright Purple to More ❯

deliver real business value What we’re looking for Strong experience with Python, SQL , and pipeline tools such as dbt or Airflow Proven background in data modelling, warehousing, and performance optimisation Hands-on experience with cloud data services (Glue, Lambda, Synapse, BigQuery, etc.) A consultancy mindset – adaptable, collaborative, and delivery-focused Apply now or contact Bright Purple to More ❯

deliver real business value What we’re looking for Strong experience with Python, SQL , and pipeline tools such as dbt or Airflow Proven background in data modelling, warehousing, and performance optimisation Hands-on experience with cloud data services (Glue, Lambda, Synapse, BigQuery, etc.) A consultancy mindset – adaptable, collaborative, and delivery-focused Apply now or contact Bright Purple to More ❯

deliver real business value What we’re looking for Strong experience with Python, SQL , and pipeline tools such as dbt or Airflow Proven background in data modelling, warehousing, and performance optimisation Hands-on experience with cloud data services (Glue, Lambda, Synapse, BigQuery, etc.) A consultancy mindset – adaptable, collaborative, and delivery-focused Apply now or contact Bright Purple to More ❯

deliver real business value What we’re looking for Strong experience with Python, SQL , and pipeline tools such as dbt or Airflow Proven background in data modelling, warehousing, and performance optimisation Hands-on experience with cloud data services (Glue, Lambda, Synapse, BigQuery, etc.) A consultancy mindset – adaptable, collaborative, and delivery-focused Apply now or contact Bright Purple to More ❯