526 to 550 of 844 Performance Optimisation Jobs in England

z/OS Systems Programmer (Mainframe) - Fully Remote We are looking for an experienced z/OS Systems Programmer to join our team, supporting the migration, installation, maintenance, and performance optimisation of IBM z/OS environments. This role is critical to ensuring reliability, security, and efficiency across our Mainframe infrastructure, while contributing to modernisation and compliance initiatives. … Responsibilities Install, configure, and maintain z/OS, JES2, SMP/E, and RACF Manage system patches, upgrades, and performance tuning Troubleshoot and resolve complex Mainframe systems issues Support integrations, migrations, and deployments across the platform Ensure adherence to security policies and regulatory compliance Collaborate with technical teams to deliver efficient and secure solutions Key Skills & Experience Strong experience More ❯

z/OS Systems Programmer (Mainframe) - Fully Remote We are looking for an experienced z/OS Systems Programmer to join our team, supporting the migration, installation, maintenance, and performance optimisation of IBM z/OS environments. This role is critical to ensuring reliability, security, and efficiency across our Mainframe infrastructure, while contributing to modernisation and compliance initiatives. … Responsibilities Install, configure, and maintain z/OS, JES2, SMP/E, and RACF Manage system patches, upgrades, and performance tuning Troubleshoot and resolve complex Mainframe systems issues Support integrations, migrations, and deployments across the platform Ensure adherence to security policies and regulatory compliance Collaborate with technical teams to deliver efficient and secure solutions Key Skills & Experience Strong experience More ❯

design systems, style guides, and reusable UI components to ensure consistency across products. Usability & Accessibility: Ensure designs adhere to best practices for usability, accessibility (WCAG compliance), and responsive behaviour. Performance & Optimization: Optimize front-end performance and UI interactions to enhance user experience across various devices and platforms. Continuous Improvement: Stay updated with industry trends, tools, and best practices … design skills. Proficiency in design tools such as Figma. Strong knowledge of HTML, CSS (SASS/LESS), and JavaScript frameworks (e.g., React, Angular, Vue). Experience with front-end performance optimization and responsive design principles. Familiarity with accessibility standards (WCAG) and cross-browser compatibility. Understanding of version control tools (e.g., Git, Azure DevOps). Excellent communication skills, with the More ❯

signed deals Qualify, pitch, and close first-time opportunities across target markets Maintain urgency, activity levels, and consistent follow-up Collaborate with Sales Ops Lead on messaging, sequencing, and performance optimisation Deliver consultative, value-based sales conversations that drive measurable impact Forecast accurately and consistently hit targets Why Join? Be part of a profitable, high-growth scale-up More ❯

signed deals Qualify, pitch, and close first-time opportunities across target markets Maintain urgency, activity levels, and consistent follow-up Collaborate with Sales Ops Lead on messaging, sequencing, and performance optimisation Deliver consultative, value-based sales conversations that drive measurable impact Forecast accurately and consistently hit targets Why Join? Be part of a profitable, high-growth scale-up More ❯

signed deals Qualify, pitch, and close first-time opportunities across target markets Maintain urgency, activity levels, and consistent follow-up Collaborate with Sales Ops Lead on messaging, sequencing, and performance optimisation Deliver consultative, value-based sales conversations that drive measurable impact Forecast accurately and consistently hit targets Why Join? Be part of a profitable, high-growth scale-up More ❯

alignment with operational and security requirements. - Implementation & Migration: Oversee SAP S/4HANA installations and upgrades - Security & Compliance: Manage SAP Secure Network Communications (SNC), encryption standards, and audit logging. - Performance Optimization: Troubleshoot and enhance system efficiency. - Stakeholder Collaboration: Work closely with contractors, government agencies, and IT teams to align SAP solutions with mission-critical objectives About You: As an More ❯

alignment with operational and security requirements. Implementation & Migration: Oversee SAP S/4HANA installations and upgrades Security & Compliance: Manage SAP Secure Network Communications (SNC), encryption standards, and audit logging. Performance Optimization: Troubleshoot and enhance system efficiency. Stakeholder Collaboration: Work closely with contractors, government agencies, and IT teams to align SAP solutions with mission-critical objectives The Candidate Extensive SAP More ❯

alignment with operational and security requirements. Implementation & Migration: Oversee SAP S/4HANA installations and upgrades Security & Compliance: Manage SAP Secure Network Communications (SNC), encryption standards, and audit logging. Performance Optimization: Troubleshoot and enhance system efficiency. Stakeholder Collaboration: Work closely with contractors, government agencies, and IT teams to align SAP solutions with mission-critical objectives The Candidate Extensive SAP More ❯

and messaging mechanisms for large-scale control systems. Work closely with embedded engineers to ensure seamless integration between hardware and software layers. Contribute to architectural design, technical direction, and performance optimisation. Help shape a brand-new platform built around reliability, scalability, and open communication standards. About You You’ll be a developer who enjoys working close to the hardware More ❯

/TypeScript) – SC Cleared (MOD) 3-month contract (extendable) £550–£600/day Outside IR35 Hybrid – Thames Valley Join a cutting-edge UK-based AI company building intuitive, high-performance interfaces for generative AI platforms. We’re seeking a Senior Frontend Engineer to lead the development of user-facing experiences that make advanced AI capabilities accessible, elegant, and production … streaming capabilities. The Role: Ownership of frontend architecture for AI-driven chat platforms, from design to deployment Development of scalable SPAs using React 19, TypeScript, and Vite for optimal performance Implementation of authentication flows with Azure MSAL/OAuth2 and secure session handling State management using Zustand and TanStack Query for seamless client-server sync Integration of streaming AI … CI/CD pipelines using GitHub Actions Collaboration with DevOps for AWS CloudFront/S3 delivery, caching, and CDN optimization Accessibility leadership (WCAG 2.1 AA), cross-browser testing, and performance monitoring via Web Vitals Security-first development including CSP headers, XSS prevention, and secure API communication Mentorship and technical leadership across frontend best practices and performance optimization Experience More ❯

/TypeScript) – SC Cleared (MOD) 3-month contract (extendable) £550–£600/day Outside IR35 Hybrid – Thames Valley Join a cutting-edge UK-based AI company building intuitive, high-performance interfaces for generative AI platforms. We’re seeking a Senior Frontend Engineer to lead the development of user-facing experiences that make advanced AI capabilities accessible, elegant, and production … streaming capabilities. The Role: Ownership of frontend architecture for AI-driven chat platforms, from design to deployment Development of scalable SPAs using React 19, TypeScript, and Vite for optimal performance Implementation of authentication flows with Azure MSAL/OAuth2 and secure session handling State management using Zustand and TanStack Query for seamless client-server sync Integration of streaming AI … CI/CD pipelines using GitHub Actions Collaboration with DevOps for AWS CloudFront/S3 delivery, caching, and CDN optimization Accessibility leadership (WCAG 2.1 AA), cross-browser testing, and performance monitoring via Web Vitals Security-first development including CSP headers, XSS prevention, and secure API communication Mentorship and technical leadership across frontend best practices and performance optimization Experience More ❯

support enterprise-grade LLM applications. MLOps and LLMOps : Build and maintain scalable MLOps and LLMOps pipelines, enabling automation of model training, testing, deployment, and monitoring. Enable reproducibility, traceability, and performance optimization across all AI solutions. Vendor Product Evaluation & Onboarding : Lead the technical evaluation of third-party AI products and platforms, conducting benchmarking, sandbox testing, and assessing integration feasibility. Collaborate … while managing feature stores and internal knowledge bases for RAG. Strong grasp of prompt engineering techniques, including zero-shot and few-shot prompting strategies with ability to enhance the performance of LLMs and agentic AI systems. Familiarity of LLM model evaluation techniques such as ROUGE, LLM-as-a-Judge and BERT. Deep knowledge of cloud-native AI platforms and … design and implement scalable ML, LLM pipelines and infrastructure. Skilled in benchmarking, sandbox testing, and integration of vendor AI products. Strong analytical and problem-solving skills, with attention to performance optimization Effective communication and collaboration skills for cross-functional engagement with engineering, procurement, legal, and governance teams. Qualifications PhD/MSc in Computer Science, AI, Data Science, or related More ❯

quality through code reviews, automated testing, and adherence to development best practices. Manage deployments and environments using tools like Git, Docker, or CI/CD pipelines. Troubleshoot bugs and performance issues across the stack. Qualifications 3+ years of experience working with Drupal 8/9/10 in full-stack development roles. Strong proficiency in PHP, MySQL, and JavaScript. … Understanding of RESTful services and API integrations. Version control using Git (GitHub/GitLab/Bitbucket). Experience working in Agile environments. Knowledge of web security best practices and performance optimization. More ❯

availability systems. Raise engineering quality: Champion best practices for testing, observability, and security. Review critical PRs and guide technical decisions across the team. Operate and improve production systems: Monitor performance, reliability, and cost efficiency. Lead incident response and drive continuous improvement. Mentor and grow others: Support engineers through pairing, feedback, and documentation to strengthen technical capability across the team. … experience designing and delivering production systems using Python on AWS . Strong understanding of distributed systems, API design, and event-driven architectures. Deep knowledge of system observability, logging, and performance optimisation. Familiarity with modern security and data-privacy best practices. Excellent communicator who can document and articulate technical trade-offs clearly. Behaviours & Attributes Ownership: Takes full responsibility for systems More ❯

technologies for improving our development workflow. We care about quality, and are always up for learning something new. We will give you experience of writing robust commercial-quality, high performance code and tests in a variety of languages. You'll be a member of an agile scrum/kanban-style team, learning new skills as needed and picking up … Rust or Go is also valued. You should have some knowledge of back-end/server-side/systems programming topics such as distributed systems, multi-threading, memory and performance optimization . Our software is deployed to the cloud using Kubernetes , so were interested in candidates with expertise in Kubernetes, microservices, AWS , Docker, and the ability to productively use More ❯

always up for learning something new. About the Job What can you expect from a role at Cumulocity? We will give you experience of writing robust commercial-quality, high performance code and tests in a variety of languages. You'll be a member of an agile scrum/kanban-style team, learning new skills as needed and picking up … Rust or Go is also valued. You should have some knowledge of back-end/server-side/systems programming topics such as distributed systems, multi-threading, memory and performance optimization . Our software is deployed to the cloud using Kubernetes , so we’re interested in candidates with expertise in Kubernetes, microservices, AWS , Docker, and the ability to productively More ❯

always up for learning something new. About the Job What can you expect from a role at Cumulocity? We will give you experience of writing robust commercial-quality, high performance code and tests in a variety of languages. You'll be a member of an agile scrum/kanban-style team, learning new skills as needed and picking up … Rust or Go is also valued. You should have some knowledge of back-end/server-side/systems programming topics such as distributed systems, multi-threading, memory and performance optimization . Our software is deployed to the cloud using Kubernetes , so we’re interested in candidates with expertise in Kubernetes, microservices, AWS , Docker, and the ability to productively More ❯

always up for learning something new. About the Job What can you expect from a role at Cumulocity? We will give you experience of writing robust commercial-quality, high performance code and tests in a variety of languages. You'll be a member of an agile scrum/kanban-style team, learning new skills as needed and picking up … Rust or Go is also valued. You should have some knowledge of back-end/server-side/systems programming topics such as distributed systems, multi-threading, memory and performance optimization . Our software is deployed to the cloud using Kubernetes , so we're interested in candidates with expertise in Kubernetes, microservices, AWS , Docker, and the ability to productively More ❯

other integration methods to ensure seamless data exchange and process flow. Governance and Best Practices: 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 ❯

other integration methods to ensure seamless data exchange and process flow. Governance and Best Practices: 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 ❯

applications using Scala, Python, Hadoop and Java . Work with Big Data technologies , including Spark, Hive (nice to have). Collaborate with cross-functional teams to deliver scalable, high-performance solutions. Participate in code reviews, testing, and performance optimization. Ensure best practices in coding, design, and architecture. Skills & Experience Required: 2-5 years of software development experience. Strong More ❯

applications using Scala, Python, Hadoop and Java . Work with Big Data technologies , including Spark, Hive (nice to have). Collaborate with cross-functional teams to deliver scalable, high-performance solutions. Participate in code reviews, testing, and performance optimization. Ensure best practices in coding, design, and architecture. Skills & Experience Required: 2-5 years of software development experience. Strong More ❯

applications using Scala, Python, Hadoop and Java . Work with Big Data technologies , including Spark, Hive (nice to have). Collaborate with cross-functional teams to deliver scalable, high-performance solutions. Participate in code reviews, testing, and performance optimization. Ensure best practices in coding, design, and architecture. Skills & Experience Required: 2-5 years of software development experience. Strong More ❯

benchmark, and deploy GPU-accelerated software and AI models at scale. Responsibilities: Design and maintain CI/CD pipelines for GPU-accelerated codecs and AI/ML libraries. Automate performance benchmarking and regression testing across multiple GPUs and hardware targets. Manage containerised environments (Docker, Kubernetes) to deploy GPU and ML workloads at scale. Provision and optimise GPU cloud infrastructure … containerisation and orchestration (Docker, Kubernetes). Experience with cloud GPU infrastructure (AWS, Azure, GCP) and IaC (Terraform, Ansible). Familiarity with GPU workflows (CUDA, SYCL, Vulkan, OpenCL) or HPC performance optimisation. Strong scripting and programming skills (Python, Bash, C/C++ exposure a plus). Knowledge of monitoring, logging, and performance testing for GPU/ML workloads. Excellent More ❯