1 to 25 of 196 Performance Optimisation Jobs in the South East

maintainable code and conducting constructive code reviews Working closely with product, design, and data teams to translate ideas into deliverables Managing release cycles, monitoring performance, and coordinating incident response Guiding and mentoring developers through pairing, feedback, and knowledge sharing Ensuring best practices around accessibility, security, and performance optimisation … Solid understanding of back-end technologies (Node.js, APIs, microservices) Experience with CI/CD pipelines, cloud platforms, and version control best practices Familiarity with performance optimisation, accessibility standards, and SEO fundamentals Excellent communication skills and the ability to simplify complex concepts Bonus: Experience with headless CMS, GraphQL, containerisation ...

development projects from design through to delivery Provide technical leadership via architecture decisions, code reviews, and mentoring Ensure best practices across CI/CD, performance optimisation, security, and accessibility Collaborate with clients, Product Managers, and Business Analysts to align technical solutions with business goals Support, inspire, and develop … Developer, or similar role delivering complex Shopify projects Familiarity with modern theme build tools such as Vite.js or Webpack Strong understanding of scalable architecture, performance optimisation, and accessibility standards Experience with DevOps workflows, GitHub, and modern CI/CD pipelines Excellent communication and leadership skills Perks & Benefits Fully ...

institutional-grade liquidity and technology. About the Role We are seeking a highly capable Senior Web Developer to lead the design, development, and optimisation of high-performance websites and digital experiences that support product launches, marketing campaigns, and customer acquisition. This role combines strong technical execution with performance … capture forms, webinar registration pages, and product demo request pages Ensure all product pages are optimized for search engine visibility and user engagement Website Performance & Infrastructure for Launch Ensure website infrastructure can handle significant traffic increases during product launch periods Implement performance monitoring to maintain sub-2-second ...

Full-time The Role We’re hiring a Software Development Engineer in Test (SDET) to design, build and maintain automation frameworks that ensure the performance, reliability, and stability of our applications. You’ll combine strong software engineering skills with a quality-led mindset to advance our automation strategy … analysis and continuous refinement of processes. Testing & Validation Write and execute automated and occasional manual test cases. Validate functional and non-functional behaviour, including performance and regression areas. Participate in code reviews with a focus on quality, performance and maintainability. Collaboration & Continuous Improvement Partner with engineering and product ...

Full-time The Role We’re hiring a Software Development Engineer in Test (SDET) to design, build and maintain automation frameworks that ensure the performance, reliability, and stability of our applications. You’ll combine strong software engineering skills with a quality-led mindset to advance our automation strategy … analysis and continuous refinement of processes. Testing & Validation Write and execute automated and occasional manual test cases. Validate functional and non-functional behaviour, including performance and regression areas. Participate in code reviews with a focus on quality, performance and maintainability. Collaboration & Continuous Improvement Partner with engineering and product ...

with TDD and writing automated tests before coding. Nice-to-Have Skills Experience in healthcare or public sector projects. Knowledge of monitoring tools and performance optimisation. Familiarity with microservices architecture. What you'll get in return Flexible working options available. What you need ...

with TDD and writing automated tests before coding. Nice-to-Have Skills Experience in healthcare or public sector projects. Knowledge of monitoring tools and performance optimisation. Familiarity with microservices architecture. What you'll get in return Flexible working options available. What you need ...

established trading-related application and drive its ongoing development. You will manage and enhance the existing codebase, deliver new features, ensure reliability and performance, and help evolve the system as the business grows. This is an excellent opportunity for someone who enjoys autonomy, technical responsibility, and working … latency, high-performance applications. What You'll Do Maintain, extend, and optimise an existing Python-based trading application Add new features and improve current capabilities with a focus on performance, reliability and clean architecture Build and optimise real-time pipelines handling high-frequency data Improve latency, throughput ...

established trading-related application and drive its ongoing development. You will manage and enhance the existing codebase, deliver new features, ensure reliability and performance, and help evolve the system as the business grows. This is an excellent opportunity for someone who enjoys autonomy, technical responsibility, and working … latency, high-performance applications. What You'll Do Maintain, extend, and optimise an existing Python-based trading application Add new features and improve current capabilities with a focus on performance, reliability and clean architecture Build and optimise real-time pipelines handling high-frequency data Improve latency, throughput ...

established trading-related application and drive its ongoing development. You will manage and enhance the existing codebase, deliver new features, ensure reliability and performance, and help evolve the system as the business grows. This is an excellent opportunity for someone who enjoys autonomy, technical responsibility, and working … latency, high-performance applications. What You'll Do Maintain, extend, and optimise an existing Python-based trading application Add new features and improve current capabilities with a focus on performance, reliability and clean architecture Build and optimise real-time pipelines handling high-frequency data Improve latency, throughput ...

established trading-related application and drive its ongoing development. You will manage and enhance the existing codebase, deliver new features, ensure reliability and performance, and help evolve the system as the business grows. This is an excellent opportunity for someone who enjoys autonomy, technical responsibility, and working … latency, high-performance applications. What You'll Do Maintain, extend, and optimise an existing Python-based trading application Add new features and improve current capabilities with a focus on performance, reliability and clean architecture Build and optimise real-time pipelines handling high-frequency data Improve latency, throughput ...

established trading-related application and drive its ongoing development. You will manage and enhance the existing codebase, deliver new features, ensure reliability and performance, and help evolve the system as the business grows. This is an excellent opportunity for someone who enjoys autonomy, technical responsibility, and working … latency, high-performance applications. What You'll Do Maintain, extend, and optimise an existing Python-based trading application Add new features and improve current capabilities with a focus on performance, reliability and clean architecture Build and optimise real-time pipelines handling high-frequency data Improve latency, throughput ...

established trading-related application and drive its ongoing development. You will manage and enhance the existing codebase, deliver new features, ensure reliability and performance, and help evolve the system as the business grows. This is an excellent opportunity for someone who enjoys autonomy, technical responsibility, and working … latency, high-performance applications. What You'll Do Maintain, extend, and optimise an existing Python-based trading application Add new features and improve current capabilities with a focus on performance, reliability and clean architecture Build and optimise real-time pipelines handling high-frequency data Improve latency, throughput ...

established trading-related application and drive its ongoing development. You will manage and enhance the existing codebase, deliver new features, ensure reliability and performance, and help evolve the system as the business grows. This is an excellent opportunity for someone who enjoys autonomy, technical responsibility, and working … latency, high-performance applications. What You'll Do Maintain, extend, and optimise an existing Python-based trading application Add new features and improve current capabilities with a focus on performance, reliability and clean architecture Build and optimise real-time pipelines handling high-frequency data Improve latency, throughput ...

established trading-related application and drive its ongoing development. You will manage and enhance the existing codebase, deliver new features, ensure reliability and performance, and help evolve the system as the business grows. This is an excellent opportunity for someone who enjoys autonomy, technical responsibility, and working … latency, high-performance applications. What You'll Do Maintain, extend, and optimise an existing Python-based trading application Add new features and improve current capabilities with a focus on performance, reliability and clean architecture Build and optimise real-time pipelines handling high-frequency data Improve latency, throughput ...

established trading-related application and drive its ongoing development. You will manage and enhance the existing codebase, deliver new features, ensure reliability and performance, and help evolve the system as the business grows. This is an excellent opportunity for someone who enjoys autonomy, technical responsibility, and working … latency, high-performance applications. What You'll Do Maintain, extend, and optimise an existing Python-based trading application Add new features and improve current capabilities with a focus on performance, reliability and clean architecture Build and optimise real-time pipelines handling high-frequency data Improve latency, throughput ...

established trading-related application and drive its ongoing development. You will manage and enhance the existing codebase, deliver new features, ensure reliability and performance, and help evolve the system as the business grows. This is an excellent opportunity for someone who enjoys autonomy, technical responsibility, and working … latency, high-performance applications. What You'll Do Maintain, extend, and optimise an existing Python-based trading application Add new features and improve current capabilities with a focus on performance, reliability and clean architecture Build and optimise real-time pipelines handling high-frequency data Improve latency, throughput ...

them for the team and the user You thrive in fast-paced environments and enjoy guiding delivery at speed and quality You value craftsmanship: performance, reliability, accessibility, and great developer experience You enjoy mentoring, coaching, and creating a culture of continuous improvement You’re motivated by measurable impact … across front end, APIs, and services (component libraries, CI/CD, observability) Writing high-quality code and conducting thoughtful code reviews Guiding technical standards: performance budgets, testing strategy, documentation, and reliability practices Collaborating with product, design, and data to turn requirements into roadmap and clear user outcomes Owning release ...

them for the team and the user You thrive in fast-paced environments and enjoy guiding delivery at speed and quality You value craftsmanship: performance, reliability, accessibility, and great developer experience You enjoy mentoring, coaching, and creating a culture of continuous improvement You’re motivated by measurable impact … across front end, APIs, and services (component libraries, CI/CD, observability) Writing high-quality code and conducting thoughtful code reviews Guiding technical standards: performance budgets, testing strategy, documentation, and reliability practices Collaborating with product, design, and data to turn requirements into roadmap and clear user outcomes Owning release ...

them for the team and the user You thrive in fast-paced environments and enjoy guiding delivery at speed and quality You value craftsmanship: performance, reliability, accessibility, and great developer experience You enjoy mentoring, coaching, and creating a culture of continuous improvement You’re motivated by measurable impact … across front end, APIs, and services (component libraries, CI/CD, observability) Writing high-quality code and conducting thoughtful code reviews Guiding technical standards: performance budgets, testing strategy, documentation, and reliability practices Collaborating with product, design, and data to turn requirements into roadmap and clear user outcomes Owning release ...

they need exceptional .NET Software Engineers to drive this evolution. Your Impact: Design and develop mission-critical platform services, APIs, and merchant portals Drive performance optimisation and system reliability through intelligent engineering Champion engineering excellence in architecture, code quality, and delivery Partner with cross-functional teams to deliver ...

they need exceptional .NET Software Engineers to drive this evolution. Your Impact: Design and develop mission-critical platform services, APIs, and merchant portals Drive performance optimisation and system reliability through intelligent engineering Champion engineering excellence in architecture, code quality, and delivery Partner with cross-functional teams to deliver ...

they need exceptional .NET Software Engineers to drive this evolution. Your Impact: Design and develop mission-critical platform services, APIs, and merchant portals Drive performance optimisation and system reliability through intelligent engineering Champion engineering excellence in architecture, code quality, and delivery Partner with cross-functional teams to deliver ...

they need exceptional .NET Software Engineers to drive this evolution. Your Impact: Design and develop mission-critical platform services, APIs, and merchant portals Drive performance optimisation and system reliability through intelligent engineering Champion engineering excellence in architecture, code quality, and delivery Partner with cross-functional teams to deliver ...

they need exceptional .NET Software Engineers to drive this evolution. Your Impact: Design and develop mission-critical platform services, APIs, and merchant portals Drive performance optimisation and system reliability through intelligent engineering Champion engineering excellence in architecture, code quality, and delivery Partner with cross-functional teams to deliver ...