51 to 65 of 65 Performance Testing Jobs in London

wide big data solutions Create integration and application technical design documentation Conduct peer-reviews of functional and technical design documentation Develop, configure, and execute test cases along with unit testing Perform code reviews and ensure coding standards are applied across solution components Resolve complex defects during testing phases and identify root causes Support and execute performance testing More ❯

of quality assurance processes. Throughout the implementation and maintenance process, this candidate should use data analysis to better understand quality reporting measures and improve processes. Responsibilities 1. Playwright (automation testing) (Must) 2. Java/TypeScript (strong programming skills) 3. Gatling (performance testing) 4. CI/CD (integration & deployment pipelines) Why join Sonata Software? At Sonata, you ́ll More ❯

of quality assurance processes. Throughout the implementation and maintenance process, this candidate should use data analysis to better understand quality reporting measures and improve processes. Responsibilities 1. Playwright (automation testing) (Must) 2. Java/TypeScript (strong programming skills) 3. Gatling (performance testing) 4. CI/CD (integration & deployment pipelines) Why join Sonata Software? At Sonata, you ́ll More ❯

of quality assurance processes. Throughout the implementation and maintenance process, this candidate should use data analysis to better understand quality reporting measures and improve processes. Responsibilities 1. Playwright (automation testing) (Must) 2. Java/TypeScript (strong programming skills) 3. Gatling (performance testing) 4. CI/CD (integration & deployment pipelines) Why join Sonata Software? At Sonata, you ́ll More ❯

of quality assurance processes. Throughout the implementation and maintenance process, this candidate should use data analysis to better understand quality reporting measures and improve processes. Responsibilities 1. Playwright (automation testing) (Must) 2. Java/TypeScript (strong programming skills) 3. Gatling (performance testing) 4. CI/CD (integration & deployment pipelines) Why join Sonata Software? At Sonata, you ́ll More ❯

dedicated UX/UI designer, engaging in rapid daily iteration to translate high-fidelity, interactive prototypes into pixel-perfect, production-ready code. ? Real-Time Data Streaming: Engineer the high-performance live transcript view, which displays the AI-screened conversation as the phone is ringing . This involves consuming real-time streaming text data from our backend AI orchestration layer … via WebSockets. ? Mastering Perceived Performance: Implement the critical mid-call intervention feature, allowing a user to seamlessly accept a call from the AI agent. You will become an expert in designing for our < 1000ms V2V (voice-to-voice) latency budget, ensuring the entire UX flow feels fast and responsive. ? API & Backend Integration: Partner with our backend (Application & AI Orchestration … models required to power the Welcome Manager's features, from live transcription to post-call entity-extracted summaries. ? MWC Demo Ownership: Be directly responsible for the polish, stability, and performance of the Welcome Manager application for its critical debut at MWC 2026. ? Cross-Functional Partnership: Collaborate closely with the other Senior Android Engineer (who owns the native CallScreeningService and More ❯

skills and familiarity with project management tools Foundational knowledge of technical infrastructure and how applications integrate within enterprise environments It would be a bonus if you had: Experience overseeing testing activities such as functional, security, and performance testing A background in service management and application support transitions This is a fantastic opportunity to join a progressive organisation More ❯

ll learn how Apple builds & releases software and you'll be encouraged to research established distributed system techniques to apply to our unique domain in order to achieve high performance, reliability and long-term maintainability. You'll have space to perform experiments, make recommendations, and ultimately changes, to our infrastructure to realise its full potential. You'll then ultimately … Spend the majority of your time building distributed services & tooling in Swift, deploying frequently with Kubernetes & profiling changes with Xcode or distributed tracing tooling. * Contribute to engineering a high-performance system through algorithm design, optimization, and performance testing, helping scale to ever-increasing problem sizes. * Have access to the engineers who create Apple's full technology, tools … of experience, from new engineers to Apple veterans. Minimum Qualifications Enrolled in a course of a related field, aiming towards a Bachelor's degree or higher. Experience with high-performance, strongly typed languages such as Swift, Rust, C++, Scala, or others. Familiarity with distributed storage and/or distributed compute systems. Interest in distributed systems, reliability, and cloud services. More ❯

deploy new features across the full stack. Write clean, high-quality code and participate in code reviews. Find and fix bugs and solve complex technical problems. Help improve system performance, testing, and monitoring. What You'll Need: 3-5+ years of software development experience. Strong skills in TypeScript/JavaScript and Golang (or Java/Kotlin/ More ❯

deploy new features across the full stack. Write clean, high-quality code and participate in code reviews. Find and fix bugs and solve complex technical problems. Help improve system performance, testing, and monitoring. What You'll Need: 3-5+ years of software development experience. Strong skills in TypeScript/JavaScript and Golang (or Java/Kotlin/ More ❯

Systems Engineer – 12 Month Contract – New Malden – SC Cleared About Your Role: - Maintain the Requirements database with associated contractual and acceptance details. - Take a lead role in the testing and acceptance process for both hardware & software releases. - Lead activities to support the Systems team with: o Elaboration and agreement of system requirements understanding the change in system capability against … with suggested recommendations to support the design of improvements. o Review/agreement of External Interface documents and management of interface baseline. o Leading other engineering activities such as performance testing, human factors, safety analysis, information assurance About You: As an experienced Systems Engineer, your skills and experience may include; o Experience of working with Software Systems o More ❯

experience) London Our Client An established UK communications infrastructure provider is looking for a Design Engineer specialising in IP networking, Ethernet, and Wi-Fi systems. Known for delivering high-performance solutions in complex, large-scale environments, the company works across sectors to design, install, and commission advanced connectivity systems. Their approach combines technical precision, robust engineering practices, and a … focus on long-term reliability, enabling them to deliver projects that meet demanding performance and security standards. The Role The Design Engineer will be responsible for developing detailed technical designs, specifications, schedules, CAD drawings, and documentation for IP networking and wireless communication systems. The role covers the full lifecycle from site survey to commissioning, ensuring network infrastructure meets capacity … availability, and security requirements. Key responsibilities include network modelling, capacity planning, performance optimisation, and overseeing commissioning activities. The successful candidate will work closely with internal teams and external partners to deliver innovative, fit-for-purpose networking solutions for high-profile projects. The ideal candidate will have a strong track record in IP network design and delivery, with experience in More ❯

experience) London Our Client An established UK communications infrastructure provider is looking for a Design Engineer specialising in IP networking, Ethernet, and Wi-Fi systems. Known for delivering high-performance solutions in complex, large-scale environments, the company works across sectors to design, install, and commission advanced connectivity systems. Their approach combines technical precision, robust engineering practices, and a … focus on long-term reliability, enabling them to deliver projects that meet demanding performance and security standards. The Role The Design Engineer will be responsible for developing detailed technical designs, specifications, schedules, CAD drawings, and documentation for IP networking and wireless communication systems. The role covers the full lifecycle from site survey to commissioning, ensuring network infrastructure meets capacity … availability, and security requirements. Key responsibilities include network modelling, capacity planning, performance optimisation, and overseeing commissioning activities. The successful candidate will work closely with internal teams and external partners to deliver innovative, fit-for-purpose networking solutions for high-profile projects. The ideal candidate will have a strong track record in IP network design and delivery, with experience in More ❯

experience) London Our Client An established UK communications infrastructure provider is looking for a Design Engineer specialising in IP networking, Ethernet, and Wi-Fi systems. Known for delivering high-performance solutions in complex, large-scale environments, the company works across sectors to design, install, and commission advanced connectivity systems. Their approach combines technical precision, robust engineering practices, and a … focus on long-term reliability, enabling them to deliver projects that meet demanding performance and security standards. The Role The Design Engineer will be responsible for developing detailed technical designs, specifications, schedules, CAD drawings, and documentation for IP networking and wireless communication systems. The role covers the full lifecycle from site survey to commissioning, ensuring network infrastructure meets capacity … availability, and security requirements. Key responsibilities include network modelling, capacity planning, performance optimisation, and overseeing commissioning activities. The successful candidate will work closely with internal teams and external partners to deliver innovative, fit-for-purpose networking solutions for high-profile projects. The ideal candidate will have a strong track record in IP network design and delivery, with experience in More ❯

Job Overview We're seeking a detail-oriented QA Engineer to ensure the quality, reliability, and performance of our fintech and financial education platforms. You will design and execute tests, identify issues, and collaborate with development teams to deliver a seamless user experience. Key Responsibilities: Develop and execute manual and automated test plans for web and mobile applications. Identify … document, and track software defects and issues. Collaborate with developers and product teams to resolve bugs and improve system performance. Conduct regression, integration, and performance testing. Maintain testing documentation and provide clear reporting on quality metrics. Recommend process improvements to enhance software quality and efficiency. Stay updated on QA tools, methodologies, and industry best practices. Requirements: Proven experience … as a QA Engineer, Software Tester, or similar role. Experience with automated testing tools (Selenium, Cypress, JUnit, etc.) is preferred. Strong knowledge of QA methodologies, processes, and best practices. Excellent analytical, problem-solving, and attention-to-detail skills. Understanding of software development life cycle (SDLC) and Agile methodologies. Experience in fintech, SaaS, or educational platforms is advantageous. Benefits: Work More ❯