726 to 750 of 1,006 Performance Optimisation Jobs in the UK

IB Engineering teams and project stakeholders. What You Bring: A minimum of five years of experience in software engineering, with a focus on modern software design, architectural patterns, and performance optimization (throughput, latency, capacity). Expert-level proficiency in Java, particularly in the development of high-performance, low-latency, and microservice-based real-time trading applications. Deep understanding More ❯

IB Engineering teams and project stakeholders. What You Bring: A minimum of five years of experience in software engineering, with a focus on modern software design, architectural patterns, and performance optimization (throughput, latency, capacity). Expert-level proficiency in Java, particularly in the development of high-performance, low-latency, and microservice-based real-time trading applications. Deep understanding More ❯

align with business requirements and enhance user satisfaction. This role offers the opportunity to work closely with cross-functional teams to implement features, resolve issues, and ensure the high performance of mobile apps across various platforms. While specific technology experience (e.g., Flutter, React Native, Swift) is not mandatory, a strong understanding of mobile development principles and familiarity with mobile … beneficial. Day-to-day of the role: Mobile App Development: Build, test, and maintain mobile applications using modern development practices. Ensure your code is clean, efficient, and maintainable, meeting performance and usability standards across devices. Feature Implementation: Collaborate with product managers, UX/UI designers, and stakeholders to translate mobile user needs into intuitive, responsive features. Bug Fixing and … Maintenance: Investigate and resolve issues that affect app performance, stability, or user experience. Implement fixes to ensure reliability through root cause analysis. Code Review and Quality Assurance: Engage in peer reviews to maintain code quality and consistency. Contribute to automated testing strategies, including unit, integration, and UI tests for mobile platforms. Collaboration and Communication: Work closely with developers, testers More ❯

generate insights through analytical reports, enhancing integrations and documentation. Regularly audit and upgrade software packages, libraries, and dependencies used in GitHub repositories. Maintain and optimize infrastructure components to ensure performance, reliability, and security. Design and manage Terraform and Ansible scripts for infrastructure automation and configuration management. Develop and maintain Azure DevOps CI/CD pipelines for efficient software delivery. … and Fargate, ensuring scalable and secure microservice environments. Use Docker for containerizing applications and improving deployment consistency. Manage and secure Apigee or similar API Management platforms, ensuring API governance, performance optimization, and compliance. Ensure security and compliance best practices across the platform, including secure coding, dependency management, and vulnerability scanning. Implement and enforce API security and access controls using …/ECR/Fargate. Strong understanding of CI/CD tools such as Azure DevOps, GitHub Actions, and Jenkins. Proficiency with Docker for containerization. Experience in monitoring tools and performance tuning for large-scale distributed systems. Solid knowledge of Apigee or similar API Management platforms. Ability to design and implement API strategies, policies, and analytics. Experience developing and integrating More ❯

generate insights through analytical reports, enhancing integrations and documentation. Regularly audit and upgrade software packages, libraries, and dependencies used in GitHub repositories. Maintain and optimize infrastructure components to ensure performance, reliability, and security. Design and manage Terraform and Ansible scripts for infrastructure automation and configuration management. Develop and maintain Azure DevOps CI/CD pipelines for efficient software delivery. … and Fargate, ensuring scalable and secure microservice environments. Use Docker for containerizing applications and improving deployment consistency. Manage and secure Apigee or similar API Management platforms, ensuring API governance, performance optimization, and compliance. Ensure security and compliance best practices across the platform, including secure coding, dependency management, and vulnerability scanning. Implement and enforce API security and access controls using …/ECR/Fargate. Strong understanding of CI/CD tools such as Azure DevOps, GitHub Actions, and Jenkins. Proficiency with Docker for containerization. Experience in monitoring tools and performance tuning for large-scale distributed systems. Solid knowledge of Apigee or similar API Management platforms. Ability to design and implement API strategies, policies, and analytics. Experience developing and integrating More ❯

generate insights through analytical reports, enhancing integrations and documentation. Regularly audit and upgrade software packages, libraries, and dependencies used in GitHub repositories. Maintain and optimize infrastructure components to ensure performance, reliability, and security. Design and manage Terraform and Ansible scripts for infrastructure automation and configuration management. Develop and maintain Azure DevOps CI/CD pipelines for efficient software delivery. … and Fargate, ensuring scalable and secure microservice environments. Use Docker for containerizing applications and improving deployment consistency. Manage and secure Apigee or similar API Management platforms, ensuring API governance, performance optimization, and compliance. Ensure security and compliance best practices across the platform, including secure coding, dependency management, and vulnerability scanning. Implement and enforce API security and access controls using …/ECR/Fargate. Strong understanding of CI/CD tools such as Azure DevOps, GitHub Actions, and Jenkins. Proficiency with Docker for containerization. Experience in monitoring tools and performance tuning for large-scale distributed systems. Solid knowledge of Apigee or similar API Management platforms. Ability to design and implement API strategies, policies, and analytics. Experience developing and integrating More ❯

and secure infrastructure. As an Infrastructure Engineer within our Integration & Test team, you’ll be at the forefront of driving innovation and safeguarding digital infrastructures by ensuring robust, high-performance systems that support our mission-critical solutions. You’ll need to have an understanding of Windows and Linux systems and DevSecOps principles and experience of working within a multi … for candidates with hands-on experience in infrastructure engineering, including expertise in areas such as cloud architecture, containerization (e.g., Docker, Kubernetes), infrastructure-as-code (e.g., Terraform, Ansible), and system performance optimization to support seamless integration and testing processes. Key Responsibilities: Plan, develop, and execute software test and integration plans, ensuring compliance with specifications, while leveraging infrastructure engineering best practices … complex solutions into a wider system-of-systems, ensuring infrastructure components are robust and interoperable. Deployment in Public, Private, and Hybrid Cloud environments, addressing potential constraints while optimizing infrastructure performance and security. If you’re passionate about Integration & Test, with a strong background in Infrastructure Engineering, and eager to take your career to the next level, we want to More ❯

and secure infrastructure. As an Infrastructure Engineer within our Integration & Test team, you’ll be at the forefront of driving innovation and safeguarding digital infrastructures by ensuring robust, high-performance systems that support our mission-critical solutions. You’ll need to have an understanding of Windows and Linux systems and DevSecOps principles and experience of working within a multi … for candidates with hands-on experience in infrastructure engineering, including expertise in areas such as cloud architecture, containerization (e.g., Docker, Kubernetes), infrastructure-as-code (e.g., Terraform, Ansible), and system performance optimization to support seamless integration and testing processes. Key Responsibilities: Plan, develop, and execute software test and integration plans, ensuring compliance with specifications, while leveraging infrastructure engineering best practices … complex solutions into a wider system-of-systems, ensuring infrastructure components are robust and interoperable. Deployment in Public, Private, and Hybrid Cloud environments, addressing potential constraints while optimizing infrastructure performance and security. If you’re passionate about Integration & Test, with a strong background in Infrastructure Engineering, and eager to take your career to the next level, we want to More ❯

and secure infrastructure. As an Infrastructure Engineer within our Integration & Test team, you’ll be at the forefront of driving innovation and safeguarding digital infrastructures by ensuring robust, high-performance systems that support our mission-critical solutions. You’ll need to have an understanding of Windows and Linux systems and DevSecOps principles and experience of working within a multi … for candidates with hands-on experience in infrastructure engineering, including expertise in areas such as cloud architecture, containerization (e.g., Docker, Kubernetes), infrastructure-as-code (e.g., Terraform, Ansible), and system performance optimization to support seamless integration and testing processes. Key Responsibilities: Plan, develop, and execute software test and integration plans, ensuring compliance with specifications, while leveraging infrastructure engineering best practices … complex solutions into a wider system-of-systems, ensuring infrastructure components are robust and interoperable. Deployment in Public, Private, and Hybrid Cloud environments, addressing potential constraints while optimizing infrastructure performance and security. If you’re passionate about Integration & Test, with a strong background in Infrastructure Engineering, and eager to take your career to the next level, we want to More ❯

and secure infrastructure. As an Infrastructure Engineer within our Integration & Test team, you’ll be at the forefront of driving innovation and safeguarding digital infrastructures by ensuring robust, high-performance systems that support our mission-critical solutions. You’ll need to have an understanding of Windows and Linux systems and DevSecOps principles and experience of working within a multi … for candidates with hands-on experience in infrastructure engineering, including expertise in areas such as cloud architecture, containerization (e.g., Docker, Kubernetes), infrastructure-as-code (e.g., Terraform, Ansible), and system performance optimization to support seamless integration and testing processes. Key Responsibilities: Plan, develop, and execute software test and integration plans, ensuring compliance with specifications, while leveraging infrastructure engineering best practices … complex solutions into a wider system-of-systems, ensuring infrastructure components are robust and interoperable. Deployment in Public, Private, and Hybrid Cloud environments, addressing potential constraints while optimizing infrastructure performance and security. If you’re passionate about Integration & Test, with a strong background in Infrastructure Engineering, and eager to take your career to the next level, we want to More ❯

our team. The ideal candidate will have hands-on expertise in modern UI technologies and frameworks, with a keen eye for detail and a commitment to delivering accessible, high-performance web applications. Your Role Develop and maintain responsive user interfaces using JavaScript , jQuery , HTML5 , CSS3 , and ReactJS . Implement and optimize styles using CSS preprocessors such as SASS or … collaboration. Leverage tools such as SonarQube , Grunt/Gulp , and npm for code quality and build automation. Conduct JavaScript unit testing to ensure code reliability and maintainability. Optimize network performance and front-end load times for enhanced user experience. Your Profile Strong proficiency in JavaScript , HTML5 , CSS3 , and ReactJS . Experience with CSS preprocessors (e.g., SASS, LESS). Solid … accessibility standards (WCAG, ARIA). Experience with unit testing frameworks and TDD methodologies. Proficiency in Git , Perforce , and build tools like Grunt , Gulp , and npm . Understanding of network performance optimization techniques. About Capgemini Capgemini is a global business and technology transformation partner, helping organizations to accelerate their dual transition to a digital and sustainable world while creating tangible More ❯

Web3 functionalities throughout the tech stack. Design and implement caching solutions using Redis to optimize application performance. Build and maintain API integrations between frontend and backend systems. Ensure high performance, reliability, and security across all system components. Collaborate with the team on technical architecture decisions and implementation strategies. Work closely with product and design teams to implement new features. … distributed storage systems. Experience with ethers.js and Web3 libraries for blockchain interaction. Experience with microservices architecture. Strong understanding of database design and optimization. Knowledge of security best practices and performance optimization. Experience with automated testing and CI/CD pipelines. Go development experience is a plus. Experience with monitoring and observability tools such as Prometheus and Grafana is a More ❯

cloud-native platforms. Support migration projects from on-premises to private/public cloud platforms (AWS, Azure, GCP). Continuously monitor, optimise, and troubleshoot virtualised systems to ensure high performance and availability. Collaborate with infrastructure, cloud, and security teams to deliver integrated, cost-effective solutions. Develop and maintain infrastructure documentation, including architecture diagrams, incident reports, and configuration baselines. Implement … Familiarity with public cloud platforms (AWS, Azure, GCP) and hybrid cloud integration. Good troubleshooting skills across compute, storage, and networking in virtualised environments. Proficiency in data analysis, monitoring, and performance optimisation. A continuous learner who keeps skills up to date with emerging technologies and industry practices. Desirable: Relevant certifications are highly desirable, such as: VMware Certified Professional (VCP) Microsoft More ❯

create the greatest impact, scale efficiently, and operate reliably for our users Design, develop, and maintain features for the MOPO Platform that enhance functionality and user experience Optimise database performance and ensure efficient data storage and retrieval for our growing network Build intuitive and responsive web interfaces that work reliably in challenging connectivity environments Integrate third-party APIs and … e.g. React) In-depth knowledge of MariaDB and SQL RESTful API design and development Version control systems (e.g., Git) and CI/CD pipelines Web security best practices and performance optimization Server deployment and maintenance (e.g. nginx, cron, package managers) Strong debugging skills (e.g. PyCharm debugger, pdb, Sentry) The following would be a strong plus... Knowledge of IoT or More ❯

using REST, SOAP, and other integration methods to ensure seamless data exchange and process flow. Establish and maintain ServiceNow governance processes, development standards, and best practices for the organization. Performance Optimization: Identify opportunities for performance optimization and scalability improvements and guide development teams in implementing the necessary changes. Security and Compliance: Ensure that ServiceNow solutions meet security requirements More ❯

communication skills. Able to take a concept from discussion to high-quality code delivery. Desirable Degree in Computer Science, Software Engineering, or related discipline highly desirable Experience in high-performance or complex systems. Familiarity with algorithmic analysis and performance optimisation. Work Arrangements Remote: or Hybrid your choice but you must be UK based. Inside IR35 contract. If you More ❯

communication skills. Able to take a concept from discussion to high-quality code delivery. Desirable Degree in Computer Science, Software Engineering, or related discipline highly desirable Experience in high-performance or complex systems. Familiarity with algorithmic analysis and performance optimisation. Work Arrangements Remote: or Hybrid your choice but you must be UK based. Inside IR35 contract. If you More ❯

Responsibilities Design, implement, and maintain complex and scalable systems and features using C# and Unity that form the technical foundation for our games. Contribute to the development, profiling and optimisation of our code, including using Unity's UI Toolkit and dynamic data binding. Support the development of editor tooling and workflows that enhance productivity and streamline content integration across … multiple disciplines including engineers, art & design. Own and maintain areas of our C# codebase, ensuring performance, maintainability, and cross-platform compatibility across desktop, console, and mobile platforms. Collaborate with cross-functional teams - including design, engineering, QA, and production - to deliver high-quality user experiences and features. Participate in planning and roadmap discussions, contributing technical insight and helping shape feature … delivery and long-term architecture. Investigate and resolve complex technical challenges, including performance bottlenecks. Mentor junior engineers, promote best practices, and foster a culture of continuous learning and technical excellence. Knowledge, Skills & Experience Extensive professional experience in video game development using C#. Deep proficiency in C# is essential, including memory management, garbage collection, async programming, and performance. A strong More ❯

leading global FX trading platform as a Java Engineer, contributing to the backbone of ultra-low latency systems powering high-volume electronic trading. This role focuses on building high-performance, globally distributed Java services that enable real-time transaction processing, configuration management, and support for quantitative research and trading teams. Key Responsibilities: Develop scalable backend systems to support high … frequency FX trading Collaborate with quants and traders to deliver platform enhancements Drive performance tuning and solve low-level technical bottlenecks Maintain high standards in testing, documentation, and code quality Tech Stack & Skills: Strong proficiency in core Java Exposure to JavaScript/TypeScript & HTML5 is a plus Deep understanding of data structures, algorithms, and performance optimization Familiar with More ❯

leading global FX trading platform as a Java Engineer, contributing to the backbone of ultra-low latency systems powering high-volume electronic trading. This role focuses on building high-performance, globally distributed Java services that enable real-time transaction processing, configuration management, and support for quantitative research and trading teams. Key Responsibilities: Develop scalable backend systems to support high … frequency FX trading Collaborate with quants and traders to deliver platform enhancements Drive performance tuning and solve low-level technical bottlenecks Maintain high standards in testing, documentation, and code quality Tech Stack & Skills: Strong proficiency in core Java Exposure to JavaScript/TypeScript & HTML5 is a plus Deep understanding of data structures, algorithms, and performance optimization Familiar with More ❯

leading global FX trading platform as a Java Engineer, contributing to the backbone of ultra-low latency systems powering high-volume electronic trading. This role focuses on building high-performance, globally distributed Java services that enable real-time transaction processing, configuration management, and support for quantitative research and trading teams. Key Responsibilities: Develop scalable backend systems to support high … frequency FX trading Collaborate with quants and traders to deliver platform enhancements Drive performance tuning and solve low-level technical bottlenecks Maintain high standards in testing, documentation, and code quality Tech Stack & Skills: Strong proficiency in core Java Exposure to JavaScript/TypeScript & HTML5 is a plus Deep understanding of data structures, algorithms, and performance optimization Familiar with More ❯

leading global FX trading platform as a Java Engineer, contributing to the backbone of ultra-low latency systems powering high-volume electronic trading. This role focuses on building high-performance, globally distributed Java services that enable real-time transaction processing, configuration management, and support for quantitative research and trading teams. Key Responsibilities: Develop scalable backend systems to support high … frequency FX trading Collaborate with quants and traders to deliver platform enhancements Drive performance tuning and solve low-level technical bottlenecks Maintain high standards in testing, documentation, and code quality Tech Stack & Skills: Strong proficiency in core Java Exposure to JavaScript/TypeScript & HTML5 is a plus Deep understanding of data structures, algorithms, and performance optimization Familiar with More ❯

leading global FX trading platform as a Java Engineer, contributing to the backbone of ultra-low latency systems powering high-volume electronic trading. This role focuses on building high-performance, globally distributed Java services that enable real-time transaction processing, configuration management, and support for quantitative research and trading teams. Key Responsibilities: Develop scalable backend systems to support high … frequency FX trading Collaborate with quants and traders to deliver platform enhancements Drive performance tuning and solve low-level technical bottlenecks Maintain high standards in testing, documentation, and code quality Tech Stack & Skills: Strong proficiency in core Java Exposure to JavaScript/TypeScript & HTML5 is a plus Deep understanding of data structures, algorithms, and performance optimization Familiar with More ❯

an exceptional experience, and we focus on putting them at the heart of what we do. This role involves working with a cloud-native Front End platform optimised for performance, edge delivery, and seamless integration with marketing and content systems. Key Responsibilities Develop and maintain modern web applications using React and Next.js Build reusable UI components and document them … using Storybook Ensure all Front End code meets accessibility standards (WCAG) and delivers inclusive user experiences Implement SEO best practices, including meta tags, structured data (schemas), and performance optimization Collaborate with designers, Back End engineers, and marketing teams to deliver seamless user journeys across multiple web-based solutions Set up and maintain CI/CD pipelines for automated testing … and be supported. When you join us, your reward will be one of the best around. This includes 40 days' annual leave, a 16% employer pension contribution, a discretionary performance-based bonus (where applicable), private healthcare and a range of flexible benefits - including gym discounts, season ticket loans and access to an employee discount portal. Our business Enabling our More ❯

and machine learning use cases. Work closely with clients to understand data requirements and translate them into robust technical solutions. Implement best practices for data modelling, data quality, and performance tuning across cloud-based platforms. Collaborate with cross-functional teams including data scientists, analysts, and software engineers to deliver end-to-end data solutions. Ensure data security, compliance, and … standards are met across all projects. Required Skills Strong experience with Azure data services (Data Factory, Synapse, Blob Storage, etc.). Proficiency in SQL for data manipulation, transformation, and performance optimisation. Hands-on experience with Databricks (Spark, Delta Lake, notebooks). Solid understanding of data architecture principles and cloud-native design. Experience working in consultancy or client-facing roles More ❯