1 to 25 of 131 Performance Testing Jobs in the UK

and maintains excellent standards and best practice in testing. You will be working within a scrum team, identifying opportunities to enhance efficiency. You will be involved with black box testing, exploratory testing, database testing, API testing, UI Testing, performance testing, Security testing, Usability testing amongst others. The successful candidate will be … a confident communicator that promotes excellence and puts quality first. This is an environment where quality is absolutely key, and the business appreciates the importance of testing as a function to ensure the products are ready for release. There is an auto team who you will communicate and collaborate with for increasing efficiency, but your role is manually focused. … Functional experience Identify opportunities for automation to increase efficiency Maintain test environments Essential: Manual automation experience - at least 3 years minimum, ideally 5 years or more Experience with various testing types - Black box, Regression, Smoke, Exploratory, Database testing, API testing and more. Experience in root cause analysis of issues. Confident communication - being an advocate for best practice More ❯

automated testing. This role focuses on building and maintaining test automation frameworks using Playwright, working closely with developers to ensure high-quality deliverables. The ideal candidate will have strong testing expertise and experience with modern automation tools. Key responsibilities Test Automation (70%) Design, develop, and maintain automated test suites using Playwright Create end-to-end tests for web applications … built with React and .NET Implement cross-browser testing strategies (Chrome, Firefox, Safari, Edge) Build API test automation for RESTful services Develop visual regression tests to catch UI changes Maintain and enhance the test automation framework Integrate automated tests into CI/CD pipelines (Azure DevOps) Monitor and report on test execution results Debug failing tests and work with … developers to resolve issues Implement performance testing for critical user journeys Quality Assurance (20%) Participate in requirement reviews to ensure testability Create comprehensive test plans and test cases Perform exploratory testing on new features Validate bug fixes and verify resolved issues Ensure test coverage metrics meet team standards Review and test database operations and data integrity Test More ❯

deliver cutting-edge solutions by working within a skilled agile team. This role offers the opportunity to grow into a Test Lead position, providing leadership and direction to our testing team. Essential Functions Design, develop, and execute comprehensive test plans and test cases. Perform manual and automated testing to ensure the quality of software products. Identify, document, and … track software defects. Collaborate with developers, product managers, and other stakeholders to understand requirements and ensure thorough testing. Conduct different testing types and adapt them to the project need: functional testing, regression testing, API testing, integration testing, security testing, performance testing, contract testing. Develop and execute test plans and test cases to … ensure the quality of AI/ML applications. Implement and maintain automated testing framework for UI, API and AI/ML solutions. Participate in the benchmark testing to ensure high data quality. Mentor junior testers and provide guidance on best practices and testing methodologies. Continuously improve testing processes and tools to enhance efficiency and effectiveness. Participate More ❯

Performance Test Engineer - Defence & Security Locations: Bristol, Manchester, or Leeds (hybrid working model) Salary: £55,000 - £80,000 per annum (depending on experience & clearance level) Security Requirement: Active UK SC or DV clearance Role Overview Join a dynamic Technology & Transformation team working on critical Defence & Security programmes. As a Performance Test Engineer, you'll support assurance and reliability … of complex systems at scale-ensuring performance, resilience, and user satisfaction across mission-critical services. Key Responsibilities Design, execute, and analyse performance test scenarios for large-scale enterprise systems. Work closely with software engineers, operations teams, and stakeholders to define performance requirements and acceptance criteria. Lead or support performance testing in Agile delivery environments alongside … DevOps, QA, and delivery teams. Identify performance bottlenecks, provide actionable insights, and collaborate with technical teams to implement optimisations. Advise on load testing tools and frameworks, simulate realistic production-like loads, and build out continuous testing capabilities. Communicate performance findings effectively to both technical and leadership audiences. Required Experience & Qualifications Active Security Check (SC) or Developed More ❯

Performance Test Engineer - Defence & Security Locations: Bristol, Manchester, or Leeds (hybrid working model) Salary: 55,000 - 80,000 per annum (depending on experience & clearance level) Security Requirement: Active UK SC or DV clearance Role Overview Join a dynamic Technology & Transformation team working on critical Defence & Security programmes. As a Performance Test Engineer, you'll support assurance and reliability … of complex systems at scale-ensuring performance, resilience, and user satisfaction across mission-critical services. Key Responsibilities Design, execute, and analyse performance test scenarios for large-scale enterprise systems. Work closely with software engineers, operations teams, and stakeholders to define performance requirements and acceptance criteria. Lead or support performance testing in Agile delivery environments alongside … DevOps, QA, and delivery teams. Identify performance bottlenecks, provide actionable insights, and collaborate with technical teams to implement optimisations. Advise on load testing tools and frameworks, simulate realistic production-like loads, and build out continuous testing capabilities. Communicate performance findings effectively to both technical and leadership audiences. Required Experience & Qualifications Active Security Check (SC) or Developed More ❯

team and ensure the quality, reliability, and consistency of our desktop application, built on the Windows Presentation Foundation (WPF) stack. In this role, you will balance manual and automated testing, refine documentation, and elevate quality assurance processes to ensure a seamless development lifecycle. What will be your responsibilities: System Understanding: Analyse and test the existing WPF-based platform to … gain a strong understanding of workflows, functionalities, and technical intricacies. Test Design & Execution: Develop comprehensive, reusable test cases and plans for both manual and automated testing, validating functional, regression, and performance scenarios. Automation: Create and maintain automated test scripts using tools compatible with WPF applications, focusing on maximizing test coverage and minimizing manual testing efforts. Documentation Review … and operational documentation, ensuring high-quality standards, clarity, and usability. QA Process Optimization: Work with cross-functional teams to establish and refine QA processes, enhancing efficiency and reliability throughout testing cycles. Defect Management: Identify, document, prioritize, and track bugs using issue-tracking systems. Collaborate closely with developers to ensure timely resolution. Performance Testing: Conduct performance and More ❯

Software Development Engineer in Test (SDET) Hybrid Working in London - 3 Days on-site per week £90k - £120k + Benefits + Bonus Are you a skilled leader in software testing with a passion for driving quality and innovation? Our client is seeking a Lead Java SDET to oversee testing strategies, mentor a talented team, and deliver scalable, robust … services for their advanced platform. What You'll Do Lead and mentor a small team of SDETs, managing performance and hiring. Drive testing strategies with a focus on shift-left principles and automation best practices. Design and build advanced automation frameworks, tools, and comprehensive test coverage. Collaborate with developers to enhance test planning, execution, and issue resolution. Propose … maintaining shared libraries and documentation. What You Bring 8+ years of test development experience, including 2+ years leading a team. Strong expertise in Java, object-oriented principles, and unit testing frameworks (e.g., JUnit). Experience testing backend systems or APIs, with knowledge of REST, JSON, or Thrift. Bonus: Familiarity with Selenium WebDriver, Jenkins, big data technologies (Hadoop, Kafka More ❯

s about to hit the market, with huge global demand already lined up. To make it happen, they urgently need a Mobile App Test Lead to take charge of testing across iOS and Android apps. You'll be both hands-on and leading from the front. Planning and running tests, coordinating a team of testers, and working closely with … developers to make sure the apps perform flawlessly across hundreds of devices and real-world conditions. What you'll be doing: Leading all mobile app testing (iOS & Android) Coordinating and mentoring junior testers Test planning, exploratory testing, regression, and performance testing Collaborating with developers to spot issues and improve performance Ensuring reliable, secure performance across multiple environments What we're looking for: Strong track record in mobile app or device testing Experience with performance testing on iOS and Android Skilled in test planning, execution, and reporting Confident communicator, able to coordinate teams and liaise with developers Self-starter who can take ownership and deliver results quickly Nice to have (not More ❯

before the advertised deadline if there are a high volume of applications. Role Summary: As the Lead QA Engineer, you will be responsible for establishing and leading the overall testing framework and processes to ensure the resilience and quality of our systems. You will play a critical role in promoting and advocating for test capabilities and decisions related to … testing within the context of our delivery environment. This position will be crucial as we transition to a cloud-based infrastructure and develop bespoke software applications to support our schemes and business insights. Additionally, you will be instrumental in ensuring the safe and secure delivery of new software applications for upcoming schemes, supporting our objective to become a centre … of expertise. Key Responsibilities Testing Framework and Processes: Define and implement standardized testing processes and artefacts, including test strategy, planning, and estimation. Drive test automation initiatives to improve testing efficiency and coverage. Risk Identification and Mitigation: Proactively identify and highlight risks to stakeholders and senior management, proposing mitigation plans to ensure timely delivery of high-quality outputs. More ❯

We are seeking a highly motivated Test Automation Engineer to join our team. The successful candidate will play a key role in designing, building, and maintaining automated testing solutions that ensure the delivery of high-quality, secure, and reliable software. This role requires a strong technical background in test engineering, excellent collaboration skills, and a proven ability to work … maintain an effective and scalable test infrastructure. Develop and maintain clear and concise documentation within the test automation code base. Collaborate and share knowledge with other teams to improve testing practices, tools, and processes. Apply Agile principles and work effectively within a multi-disciplinary Agile team. Review requirements and specifications to define test conditions, identify risks, and provide feedback. … Analyse and report test activities and results to support informed decision-making. Design and execute non-functional test cases (e.g. performance, security, accessibility) using standard testing techniques. Create business scenarios in partnership with stakeholders to validate feature functionality. Apply core technical concepts effectively within the role. Strong knowledge of test engineering best practices . Experience with functional and More ❯

Work with the Architecture Team and the Development Teams to translate company needs into network infrastructure solutions that will suit those needs and requirements in terms of performance, resource usage, scalability, resilience and observability. The proposed solutions may include Core networking (routing and switching) using either ACI or Nexus traditional based networking, Cisco SDWAN, load balancing and firewall solutions. … and non-functional requirements. Additionally, needs to take into account the requirements of the others operations teams. Understand the functional and non-functional requirements of the networking systems, including performance, scalability, availability and security requirements. Identify the hardware, software and components that will be required to support the networks. This may include switches, routers, next-gen firewalls, load balancers … s connectivity and security. Define the tests for the networking elements to ensure that it meets the functional and non-functional requirements. In some cases may involve high availability testing, performance testing, scalability testing, security testing and other types of validation. Document the LLD, including the architecture, configuration, and testing results. This documentation will More ❯

analytics requirement, as well as local and remote troubleshooting purpose. Responsibilities At least 4 years of creating and executing test cases Working knowledge of functional and non-functional software testing, the software test life cycle, and various test design methodologies (function, performance, accessibility, scenario etc.). Test cases creation and execution based on Customer and Software requirements Python … 3+ years of experience Experience of setting up testing framework from scratch Experience in testing of Backend (API) and data quality Knowledge of API testing tooling like Postman, Swagger DBs basics and SQL database usage expert Familiar with IoT OR Time series data handing knowledge Linux knowledge Experience with AWS services CI/CD (Jenkins) Experience with … Performance testing Good soft skills in communication. Exemplary verbal and written communication skills (English). Creative problem-solver capable of creating and reproducing interesting software bugs. SKILLS Must have Mandatory Skills Description At least 4 years of creating and executing test cases Working knowledge of functional and non-functional software testing, the software test life cycle, and More ❯

to join a dynamic team for a challenging 12-month project, with the potential for a further 12-month extension. The successful candidate will play a pivotal role in testing data-centric, highly complex, and calculation-heavy Azure end-user web applications used by internal and external subject matter experts.Key Responsibilities: Utilise expertise in testing Azure applications, with …/CD Pipelines, C# .Net Framework, AngularJS, PowerShell, Microsoft SQL Server, XML, Agile Scrum, Azure Cloud, Azure Active Directory B2C, and Microsoft Identity Platform. Demonstrate proficiency in automation and performance testing tools such as Selenium Web Driver and Visual Studio Load Test. Employ Behavioural Driven Testing and Acceptance Driven Testing tools, specifically SpecFlow. Showcase outstanding teamwork … and collaboration with a diverse range of delivery teams. Key Knowledge/Skills: Expertise in testing data-centric, highly complex, and calculation-heavy Azure end-user web applications. Strong written and verbal communication skills. Proficiency in Azure DevOps CI/CD Pipelines, C# .Net Framework, AngularJS, PowerShell, Microsoft SQL Server, XML, Agile Scrum, Azure Cloud, Azure Active Directory B2C More ❯

project with several functional sub-components. What You'll Be Doing Test Automation Development : Design, develop, and maintain automated test frameworks, tools, and libraries. Integrate, implement, and optimise automated testing strategies to enhance CI/CD pipelines. Performance and Security Testing : Develop and execute performance and load test strategies to ensure the system can handle high … volumes of traffic. Implement security testing practices to identify and mitigate vulnerabilities. Develop functional resilience strategies such as chaos engineering. Quality Assurance : Empower the product team to conduct thorough testing of software applications, including unit, integration, system, and acceptance tests. Support engineers to debug and resolve complex issues, including fixing bugs. Test Planning and Execution : Translating product requirements … into high-level test strategies and architectural decisions. Ensuring non-functional requirements (NFRs), such as performance and security, are considered early in the development lifecycle. Collaboration : Work closely with other SDETs, Software Engineers, QA Analysts, and DevOps Engineers to integrate automated testing and quality into the development process. Participate in code reviews and provide feedback on testability and More ❯

Performance Tester - Financial Technology - Peterborough/Hybrid (Key skills: Performance Testing, LoadRunner, VuGen, Dynatrace, Splunk, SQL Server, .NET Framework, IIS, Windows Server, Agile, Test Analysis, System Monitoring, Scalability Testing, Financial Services, Application Performance Engineering) Are you a meticulous Performance Tester with a passion for precision, scalability, and delivering smooth digital experiences? Are you looking … technology provider based in Peterborough, supporting high-volume enterprise platforms across payroll, HR, and compliance systems. As part of their continued investment in operational excellence, they are seeking a Performance Tester to join their performance engineering function and ensure that critical applications meet stringent scalability, performance and availability requirements. In this role, you'll be responsible for … developing and executing performance test strategies using industry-standard tools including LoadRunner, Dynatrace and Splunk. Working within an Agile delivery model, you'll collaborate closely with developers, engineers and QA specialists to validate non-functional performance requirements and support the early detection and resolution of bottlenecks. You'll help build out usage models that emulate real-world traffic More ❯

distributed systems. The ideal candidate will be a proactive, self-starting individual with a solid background in building robust automation frameworks. You will be expected to leverage your technical testing knowledge, integrate into our agile environment, and deliver high-quality test solutions efficiently. We invite you to explore a future with us at PRA Group, a diverse and growing … distributed systems. The ideal candidate will be a proactive, self-starting individual with a solid background in building robust automation frameworks. You will be expected to leverage your technical testing knowledge, integrate into our agile environment, and deliver high-quality test solutions efficiently. What Your Day Looks Like Designing and implementing automated test cases for web applications using Selenium … Contribute to the overall automation strategy and roadmap, identifying opportunities for increased efficiency and coverage. Focus on delivering high-quality, reusable, and maintainable automated tests within project timelines. API Testing Expertise: Perform functional API testing for RESTful APIs, ensuring data integrity and correct system behaviour. Utilise and contribute to API testing frameworks to ensure thorough validation of More ❯

Gherkin syntax and ReqNRoll. Participate in Agile ceremonies, story reviews, and provide early feedback on testability and quality. Expand test coverage across regression and feature test suites. Perform exploratory testing during feature development. Conduct code reviews for test scripts and contribute to internal tooling. Support performance testing using Azure Load Testing, JMeter, or Locust. Debug CI …/CD pipeline issues and ensure smooth test execution in Azure DevOps. Contribute to backend/API testing and support security testing initiatives. Company Benefits 22 days holiday (plus 3.5 discretionary days at Christmas) 4x Salary Life Insurance 6% Pension Contribution - into a defined Pension Plan held with Scottish Widows Company bonus scheme - worth up to 3% of … days Bike to Work Scheme Requirements You Should Have: Bachelor's degree in computer science, Engineering, or related field (or equivalent experience). 5+ years of experience in software testing with a strong focus on automation. Proficient in C# and test automation tools (Selenium, Playwright). Solid understanding of Agile/Kanban methodologies and shift-left testing practices. More ❯

Gherkin syntax and ReqNRoll. Participate in Agile ceremonies, story reviews, and provide early feedback on testability and quality. Expand test coverage across regression and feature test suites. Perform exploratory testing during feature development. Conduct code reviews for test scripts and contribute to internal tooling. Support performance testing using Azure Load Testing, JMeter, or Locust. Debug CI …/CD pipeline issues and ensure smooth test execution in Azure DevOps. Contribute to backend/API testing and support security testing initiatives. Company Benefits 22 days holiday (plus 3.5 discretionary days at Christmas) 4x Salary Life Insurance 6% Pension Contribution - into a defined Pension Plan held with Scottish Widows Company bonus scheme - worth up to 3% of … days Bike to Work Scheme Requirements You Should Have: Bachelor's degree in computer science, Engineering, or related field (or equivalent experience). 5+ years of experience in software testing with a strong focus on automation. Proficient in C# and test automation tools (Selenium, Playwright). Solid understanding of Agile/Kanban methodologies and shift-left testing practices. More ❯

real hardware with virtual environments to validate and improve complex systems. Working in a cutting-edge test facility, you will create high-fidelity simulations to replicate operational scenarios, enabling performance testing, system validation, and trial preparation. Key Responsibilities Design and develop real-time simulations for system performance testing Abstract complex technical detail to understand system behaviours … Develop software plug-ins to support and enhance simulation capability Work within Linux environments and program in C/C++ Integrate hardware and software systems, troubleshoot interfaces, and optimise performance Analyse performance results and produce clear technical reports What We're Looking For We welcome applicants with broad engineering experience and an interest in real-time systems. Skills … in the following areas would be advantageous: Real-time software design Linux operating systems C/C++ programming Systems integration and debugging Performance analysis of complex systems About You You enjoy solving complex engineering problems, have strong analytical skills, and are comfortable working with both software and hardware. You thrive in a collaborative environment and are eager to contribute More ❯

our Downdetector-Connect mobile SDKs and applications. In this pivotal role, you will be a technical leader, driving best practices, mentoring a talented team, and ensuring the highest quality, performance, and scalability of our mobile offerings. You will be instrumental in shaping the future of how users interact with network status and outage information on their mobile devices, and … Android and iOS applications. Lead the design and implementation of complex features, ensuring robustness, scalability, and maintainability across both platforms. Champion best practices in mobile development, including code quality, testing, performance optimization, and security. Conduct architectural reviews and provide technical guidance to the mobile development team. Hands-on Development: Write high-quality, performant, and maintainable code for both … ensure adherence to coding standards. Collaborate with product managers, designers, and backend engineers to translate requirements into technical solutions. Participate in the hiring process for new mobile engineering talent. Performance & Optimization: Identify and resolve performance bottlenecks, memory leaks, and other issues to ensure smooth and responsive application performance. Implement strategies for efficient battery usage and data consumption. Optimize More ❯

systems using APIs , middleware, and Vlocity DataRaptors. Ensure seamless data flow across integrated systems, maintaining data accuracy and performance. Collaborate with IT teams to troubleshoot and resolve integration challenges. Performance Optimization: Optimize Salesforce Core and Vlocity solutions for performance, scalability, and maintainability. Conduct code reviews, performance testing, and debugging to ensure high-quality deliverables. Implement best … requirements and implement effective solutions. Document technical designs, workflows, and solution architectures for both Vlocity and Salesforce Core implementations. Provide technical guidance and mentorship to peer developers as needed. Testing and Deployment: Conduct unit, integration, and performance testing for all developed solutions. Support deployments across multiple environments using CI/CD pipelines and version control systems. Troubleshoot More ❯

systems using APIs , middleware, and Vlocity DataRaptors. Ensure seamless data flow across integrated systems, maintaining data accuracy and performance. Collaborate with IT teams to troubleshoot and resolve integration challenges. Performance Optimization: Optimize Salesforce Core and Vlocity solutions for performance, scalability, and maintainability. Conduct code reviews, performance testing, and debugging to ensure high-quality deliverables. Implement best … requirements and implement effective solutions. Document technical designs, workflows, and solution architectures for both Vlocity and Salesforce Core implementations. Provide technical guidance and mentorship to peer developers as needed. Testing and Deployment: Conduct unit, integration, and performance testing for all developed solutions. Support deployments across multiple environments using CI/CD pipelines and version control systems. Troubleshoot More ❯

on configuring Single Sign on(SSO) & Active Directory (AD) integration for P6 EPPM on cloud (SaaS) Supports Integration of P6 with internal Gfiber systems Execute and support System Integration Testing (SIT) and User Acceptance Testing (UAT) Providing Subject matter expertise in Primavera application to the customer for its effective usage Qualification Required : 8+ years of hands-on Application … verbal and written communication skills Collaboration: Work closely with functional consultants, business analysts, and other stakeholders to gather requirements, provide technical guidance, and ensure solutions align with business needs. Testing: Conduct thorough unit testing, integration testing, and performance testing to ensure the quality and stability of delivered solutions. Documentation: Maintain comprehensive technical documentation for all More ❯

cross- functional teams to define test strategies, create test plans, execute test cases, and identify and report software defects. The ideal candidate will have a strong understanding of software testing methodologies, excellent analytical skills, and a passion for delivering high-quality products. Tech Stack: AWS Serverless Lambda with Node.js API Gateway (REST/JSON) DynamoDB S3 WAF Back-Office … strategies and plans. Develop, document, and maintain detailed test cases and test scripts based on project requirements and functional specifications. Execute manual and automated tests to verify software functionality, performance, usability, and security. Identify, document, and track software defects using a bug tracking system and work closely with the development team to ensure timely resolution. Participate in the review … of product requirements, design documents, and specifications to provide input on testability and quality aspects. Perform exploratory testing and provide feedback on user experience and potential usability issues. Conduct regression testing to ensure that software changes and updates do not introduce new defects. Collaborate with software developers to reproduce and debug reported issues and provide clear and concise More ❯

in the FinTech industry as a part of their Belfast expansion. You will be a quality advocate and will drive automation-first practices , with a strong focus on API testing . Working closely with developers and product owners, you will ensure high-quality, reliable software is delivered each sprint. This is a hands-on role with significant autonomy, where … you will shape testing strategy, mentor others, and contribute to building robust automation frameworks. Key Responsibilities Design, implement, and maintain automated functional and non-functional tests. Lead API, UI, and performance testing within CI/CD pipelines. Drive a shift-left approach to quality across the Agile team. Collaborate with global teams on test strategy, planning, and … in automation tools (Selenium, Cypress, Playwright, TestComplete). Programming/scripting with Java, JavaScript, or similar . CI/CD tools (GitLab, Jenkins, TeamCity). BDD frameworks (Cucumber) and performance tools (JMeter). Non-functional testing (Performance, Load, Stress, Security). Strong collaboration and communication in Agile/SAFe environments. Desirable Experience in financial services/trading More ❯