22 of 22 Permanent Performance Testing Jobs in the City of London

Senior Performance Tester - Non-functional - 3 month contract - paying £550 Inside IR35 - Hybrid (2 days a week) We’re looking for an experienced Senior Performance Tester to join a high-performing team working on a global streaming platform that powers millions of users across video-on-demand and live services. What you’ll do: Develop and maintain a … Gatling-based performance testing framework integrated into CI/CD pipelines. Define non-functional requirements and performance acceptance criteria. Analyze performance test results and production metrics to identify trends, risks, and improvements. Work with modern technologies including Docker, Kubernetes, Kafka, and NoSQL databases. Mentor junior testers and drive continuous improvement in performance testing practices. … What we’re looking for: 5+ years’ experience in non-functional/performance testing for large-scale applications. Hands-on experience with Gatling and open-source performance tools. Strong knowledge of CI/CD tools (Jenkins, GitHub Actions, Gradle/Maven). Skilled in monitoring/logging with Prometheus and Grafana. Proficiency in scripting languages (Scala, Python More ❯

Senior Performance Tester - Non-functional - 3 month contract - paying £550 Inside IR35 - Hybrid (2 days a week) We’re looking for an experienced Senior Performance Tester to join a high-performing team working on a global streaming platform that powers millions of users across video-on-demand and live services. What you’ll do: Develop and maintain a … Gatling-based performance testing framework integrated into CI/CD pipelines. Define non-functional requirements and performance acceptance criteria. Analyze performance test results and production metrics to identify trends, risks, and improvements. Work with modern technologies including Docker, Kubernetes, Kafka, and NoSQL databases. Mentor junior testers and drive continuous improvement in performance testing practices. … What we’re looking for: 5+ years’ experience in non-functional/performance testing for large-scale applications. Hands-on experience with Gatling and open-source performance tools. Strong knowledge of CI/CD tools (Jenkins, GitHub Actions, Gradle/Maven). Skilled in monitoring/logging with Prometheus and Grafana. Proficiency in scripting languages (Scala, Python More ❯

optimise and innovate. We turn big ideas into the products, content and services millions of people love. And we do it all right here at Sky. As a Senior Performance Engineer, you will be working as part of Global Commerce Central test team. You will be responsible for coordinating performance testing activities, acting as a single point … management skills, including ability to communicate complex concepts to non-technical and technical audiences. Taking ownership of NFR, requirement analysis and finalisation and driving non-functional initiatives like Chaos testing Detailed results analysis including application monitoring, identify Performance bottlenecks and recommend/implement improvements or performance optimisation. Mediate potential conflicts and foster solutions-oriented discussions with stakeholders. … Establish and maintain efficient and scalable performance testing automation framework. Design, develop and maintain Performance Test scripts. Test execution & co-ordination across multiple external and internal teams for issue resolution. Conduct discovery process to specify scope, extent and type of Performance testing required. Able to define and troubleshoot Test environments to identify issues across System More ❯

optimise and innovate. We turn big ideas into the products, content and services millions of people love. And we do it all right here at Sky. As a Senior Performance Engineer, you will be working as part of Global Commerce Central test team. You will be responsible for coordinating performance testing activities, acting as a single point … management skills, including ability to communicate complex concepts to non-technical and technical audiences. Taking ownership of NFR, requirement analysis and finalisation and driving non-functional initiatives like Chaos testing Detailed results analysis including application monitoring, identify Performance bottlenecks and recommend/implement improvements or performance optimisation. Mediate potential conflicts and foster solutions-oriented discussions with stakeholders. … Establish and maintain efficient and scalable performance testing automation framework. Design, develop and maintain Performance Test scripts. Test execution & co-ordination across multiple external and internal teams for issue resolution. Conduct discovery process to specify scope, extent and type of Performance testing required. Able to define and troubleshoot Test environments to identify issues across System More ❯

leveraging the latest technologies to address a massive gap in the food supply chain. The ideal candidate is a self-motivated, multi-tasker, and demonstrated team-player. Responsibilities Manual Testing Skills: Advanced proficiency in testing mobile applications developed in React Native, including UI/UX evaluations, functional testing, and regression testing. In-depth expertise in testing web applications, focusing on cross-browser compatibility, responsive design, and user interface testing. Strong competence in testing backend APIs, including endpoint testing, integration testing, and security testing. Automation Testing Skills: Proficient in developing and maintaining automated test scripts to streamline the testing process. Extensive experience in automating API testing with tools like Swagger … for API documentation and Postman for API development, testing, and debugging. Familiarity with scripting languages and frameworks to enhance automation capabilities. Monitoring and Reporting Tools: Proficiency in using Sentry for real-time error tracking and performance monitoring of applications, along with log management and crash reporting. Proficiency in using AWS Cloudwatch for real-time error tracking and performance More ❯

leveraging the latest technologies to address a massive gap in the food supply chain. The ideal candidate is a self-motivated, multi-tasker, and demonstrated team-player. Responsibilities Manual Testing Skills: Advanced proficiency in testing mobile applications developed in React Native, including UI/UX evaluations, functional testing, and regression testing. In-depth expertise in testing web applications, focusing on cross-browser compatibility, responsive design, and user interface testing. Strong competence in testing backend APIs, including endpoint testing, integration testing, and security testing. Automation Testing Skills: Proficient in developing and maintaining automated test scripts to streamline the testing process. Extensive experience in automating API testing with tools like Swagger … for API documentation and Postman for API development, testing, and debugging. Familiarity with scripting languages and frameworks to enhance automation capabilities. Monitoring and Reporting Tools: Proficiency in using Sentry for real-time error tracking and performance monitoring of applications, along with log management and crash reporting. Proficiency in using AWS Cloudwatch for real-time error tracking and performance More ❯

you’ll be key to ensuring the quality and reliability of every product release. We’re looking for someone who can create robust test plans, carry out thorough feature testing, and help establish automated testing practices that scale with our fast-growing product. Your work will give the team confidence to move quickly while delivering a consistently excellent … understand requirements and define comprehensive test plans for new features Design, document, and execute manual test cases to validate functionality, usability, and edge cases Set up and maintain automated testing frameworks to increase test coverage and reduce manual effort over time Identify, document, and track defects, collaborating with developers to resolve issues quickly and effectively Establish QA best practices … Work closely with engineers to ensure automated tests are part of the CI/CD pipeline, enabling fast and reliable releases Proactively suggest improvements to product quality, processes, and testing tools Contribute to building a culture where quality is owned by everyone in the team We'd love to hear from you if you have: 3+ years of professional More ❯

do and turning feedback into perfect software, you’ll fit right in. What you’ll do Think like a user: design and execute test plans, test cases, and exploratory testing for iOS and/or Android apps Catch edge cases, regression bugs, performance hiccups, and accessibility gaps before they reach our customers Collaborate with product managers, designers, and … release readiness activities: release notes, risk assessments, and sprint reviews Help shape QA processes, promote quality culture, and share learnings with the team What we’re looking for Experience testing mobile apps on iOS and/or Android (hands-on in a product/web/mobile app environment) Strong eye for detail and a user-centric mindset Familiarity … issue tracking, and test case management Ability to write clear, reproducible bug reports and communicate effectively with cross-functional teams Optional but nice-to-have: basic automation scripting, API testing, performance testing, accessibility testing Bonus: knowledge of mobile devices, OS versions, and real-device testing vs. emulators/simulators What you’ll bring A collaborative More ❯

do and turning feedback into perfect software, you’ll fit right in. What you’ll do Think like a user: design and execute test plans, test cases, and exploratory testing for iOS and/or Android apps Catch edge cases, regression bugs, performance hiccups, and accessibility gaps before they reach our customers Collaborate with product managers, designers, and … release readiness activities: release notes, risk assessments, and sprint reviews Help shape QA processes, promote quality culture, and share learnings with the team What we’re looking for Experience testing mobile apps on iOS and/or Android (hands-on in a product/web/mobile app environment) Strong eye for detail and a user-centric mindset Familiarity … issue tracking, and test case management Ability to write clear, reproducible bug reports and communicate effectively with cross-functional teams Optional but nice-to-have: basic automation scripting, API testing, performance testing, accessibility testing Bonus: knowledge of mobile devices, OS versions, and real-device testing vs. emulators/simulators What you’ll bring A collaborative More ❯

Performance Test Engineer - £565 per day Outside IR35 - Contract - London (Hybrid) La Fosse has partnered with an established and reputable business to recruit a Performance Test Engineer for an initial 4-month contract . This role requires an individual with exceptional hands-on performance testing experience , capable of designing, executing, and analysing performance tests across … role in ensuring scalability, stability, and reliability of business-critical application Key requirements: Proven experience in UI automation using Selenium with C#/.NET. Strong background in load and performance testing with JMeter. Skilled in designing, executing, and analyzing performance test cases. Proficient in Zephyr for Jira for test management and defect tracking. Interview Processes: 2 stage More ❯

Performance Test Engineer - £565 per day Outside IR35 - Contract - London (Hybrid) La Fosse has partnered with an established and reputable business to recruit a Performance Test Engineer for an initial 4-month contract . This role requires an individual with exceptional hands-on performance testing experience , capable of designing, executing, and analysing performance tests across … role in ensuring scalability, stability, and reliability of business-critical application Key requirements: Proven experience in UI automation using Selenium with C#/.NET. Strong background in load and performance testing with JMeter. Skilled in designing, executing, and analyzing performance test cases. Proficient in Zephyr for Jira for test management and defect tracking. Interview Processes: 2 stage More ❯

Exp: 10 + yrs Job Summary The Senior Test Specialist/Architect in Cloud Automation Testing focuses on automating testing processes in ETL (Extract, Transform, Load) and Data Warehousing environments to ensure the quality and reliability of data pipelines. The role involves designing, developing, and implementing automation scripts for testing data transformations, data loading processes, and data … quality verification. Key Responsibilities 1. Develop and execute automated test scripts for etl processes and data pipelines. 2. Collaborate with cross functional teams to design and implement automated testing frameworks. 3. Create test plans and test cases for etl and data warehouse testing. 4. Identify and troubleshoot issues in data transformations and data loading processes. 5. Conduct performance testing and ensure scalability of data pipelines. 6. Implement best practices for data quality assurance in etl environments. Skill Requirements 1. Proficiency in cloud-based automation testing tools like selenium, appium, or similar. 2. Experience in automation testing of etl (extract, transform, load) processes and data warehousing. 3. Strong understanding of sql for data querying and More ❯

Exp: 10 + yrs Job Summary The Senior Test Specialist/Architect in Cloud Automation Testing focuses on automating testing processes in ETL (Extract, Transform, Load) and Data Warehousing environments to ensure the quality and reliability of data pipelines. The role involves designing, developing, and implementing automation scripts for testing data transformations, data loading processes, and data … quality verification. Key Responsibilities 1. Develop and execute automated test scripts for etl processes and data pipelines. 2. Collaborate with cross functional teams to design and implement automated testing frameworks. 3. Create test plans and test cases for etl and data warehouse testing. 4. Identify and troubleshoot issues in data transformations and data loading processes. 5. Conduct performance testing and ensure scalability of data pipelines. 6. Implement best practices for data quality assurance in etl environments. Skill Requirements 1. Proficiency in cloud-based automation testing tools like selenium, appium, or similar. 2. Experience in automation testing of etl (extract, transform, load) processes and data warehousing. 3. Strong understanding of sql for data querying and More ❯

Mentor team members in QA best practices and automation strategies. Keep up to date with QA tools, trends, and methodologies. Technical Skills needed: 5+ years of experience in automation testing and software quality assurance. Strong proficiency in Playwright or Selenium Experience with BDD/TDD frameworks Competency in API testing (Postman, SoapUI) and SQL Familiarity with test management … tools such as JIRA, Xray, or TestRail. Desirable skills: Degree in Computer Science or a related field. Expertise in mobile automation (Appium) and front-end web testing. Knowledge of performance testing tools like K6 or JMeter. Benefits: Hybrid working arrangement (London-based). Bonus’ Great company culture Life insurance and income protection. Contributory pension scheme. Annual training and More ❯

Mentor team members in QA best practices and automation strategies. Keep up to date with QA tools, trends, and methodologies. Technical Skills needed: 5+ years of experience in automation testing and software quality assurance. Strong proficiency in Playwright or Selenium Experience with BDD/TDD frameworks Competency in API testing (Postman, SoapUI) and SQL Familiarity with test management … tools such as JIRA, Xray, or TestRail. Desirable skills: Degree in Computer Science or a related field. Expertise in mobile automation (Appium) and front-end web testing. Knowledge of performance testing tools like K6 or JMeter. Benefits: Hybrid working arrangement (London-based). Bonus’ Great company culture Life insurance and income protection. Contributory pension scheme. Annual training and More ❯

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 ❯

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 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 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 ❯

digital services, helping public sector organisations operate securely and confidently in complex environments. The Role We are looking for a Quality Assurance & Test Services Manager to lead and coordinate testing and quality assurance across Zero Plus’s End User Compute (EUC) solutions. This role covers the full lifecycle of testing activities, from strategy and planning through to execution … and collaboration technologies are delivered to the highest standards of quality, security, and reliability. You will also provide governance oversight, drive continuous improvement, and mentor junior engineers to build testing maturity across the organisation. In this role, you will: Define and own the test strategy for EUC projects, ensuring alignment with enterprise IT and security standards. Develop detailed test … plans, schedules, and resource models. Oversee functional, regression, integration, UAT, and performance testing. Manage test environments, data, automation frameworks, and tooling. Ensure coverage across EUC technologies including Windows 10/11, Microsoft 365, collaboration tools, and VDI platforms. Lead defect management, triage, and resolution processes. Provide clear reporting on test progress, risks, and issues to senior stakeholders. Ensure compliance More ❯

digital services, helping public sector organisations operate securely and confidently in complex environments. The Role We are looking for a Quality Assurance & Test Services Manager to lead and coordinate testing and quality assurance across Zero Plus’s End User Compute (EUC) solutions. This role covers the full lifecycle of testing activities, from strategy and planning through to execution … and collaboration technologies are delivered to the highest standards of quality, security, and reliability. You will also provide governance oversight, drive continuous improvement, and mentor junior engineers to build testing maturity across the organisation. In this role, you will: Define and own the test strategy for EUC projects, ensuring alignment with enterprise IT and security standards. Develop detailed test … plans, schedules, and resource models. Oversee functional, regression, integration, UAT, and performance testing. Manage test environments, data, automation frameworks, and tooling. Ensure coverage across EUC technologies including Windows 10/11, Microsoft 365, collaboration tools, and VDI platforms. Lead defect management, triage, and resolution processes. Provide clear reporting on test progress, risks, and issues to senior stakeholders. Ensure compliance More ❯