1 to 25 of 52 Performance Testing Jobs in the South East

Senior QA Test Engineer (C# API Performance Testing) Reigate/WFH to £85k Do you enjoy breaking things and putting them back together to discover how they work? You could be progressing your career, in a senior, hands-on role working on complex and technically challenging systems with … environments and frameworks and work with software developers to achieve high levels of test automation with a focus on complex backend C#, API and Performance Testing (JMeter). You'll work end-to-end, liaising with the Product Owner to define User Stories, through to executing manual and … automation tests, performing exploratory testing and investigating new tools and processes. Location/WFH: There's a hybrid work from model, you can work from most of the week, meeting up with colleagues in Reigate 1-2 days a week in modern, open plan offices within a five minute More ❯

cadence we believe in hiring strong technical talent and then supporting that talent to grow with us. Our offices are in Abingdon but this Performance Test Engineer Lead role could be either office based or hybrid with monthly office days . You should live within reasonable commute of Abingdon. … The Role Working as part of our Software Quality team, you will play a key role in strategising, implementing, and optimising performance testing for our systems, ensuring robust, scalable, and high-performing applications. This is a hands-on position requiring both technical expertise and the ability to mentor … junior team members while driving improvements in performance testing practices across the business. Key Tasks and Responsibilities Design and implement detailed performance testing plans, including load, stress, endurance, and scalability testing. Develop and maintain automated performance testing suites using tools like JMeter, Gatling, NeoLoad More ❯

cadence we believe in hiring strong technical talent and then supporting that talent to grow with us. Our offices are in Abingdon but this Performance Test Engineer Lead role could be either office based or hybrid with monthly office days . You should live within reasonable commute of Abingdon. … The Role Working as part of our Software Quality team, you will play a key role in strategising, implementing, and optimising performance testing for our systems, ensuring robust, scalable, and high-performing applications. This is a hands-on position requiring both technical expertise and the ability to mentor … junior team members while driving improvements in performance testing practices across the business. Key Tasks and Responsibilities Design and implement detailed performance testing plans, including load, stress, endurance, and scalability testing. Develop and maintain automated performance testing suites using tools like JMeter, Gatling, NeoLoad More ❯

Performance Test Engineering Consultant Join Ten10s Expert Consultancy Team Location: Hybrid (London office + client site travel as required) Employment Type: Permanent Start Date: June '25 Security Clearance: SC Clearance preferred The Opportunity Are you an experienced Performance Test Engineer looking to take the next step in your … career within a dynamic and growing consultancy? At Ten10 , we are looking for a talented Performance Test Engineering Consultant to join our highly skilled consultancy team. This is an exciting opportunity to work on diverse and challenging client projects, ensuring the delivery of high-performing applications and systems. About … Ten10 Ten10 is the UKs leading independent Quality Engineering & Software Testing consultancy. We work with a range of clients across multiple sectors, providing innovative solutions to help them deliver better software, faster. Our consultants are at the heart of what we do, and we invest in their development to More ❯

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. Responsibilities: System Understanding: Analyze and test the existing WPF-based platform … 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: Review and improve technical 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 More ❯

an opportunity has arisen for an experienced IT Software Tester to join our growing team! If you have a keen eye for detail, strong testing skills, and a passion for quality assurance, this could be the perfect role for you. Key Responsibilities Design and execute manual and automated test … cases Perform functional, integration, regression , and performance testing Identify, log, and track bugs using JIRA or similar tools Collaborate with developers and stakeholders to understand requirements Use API testing tools like Postman and basic SQL for data validation Contribute to documentation and usability testing What We … re Looking For 3+ years' experience in software testing Experience with Selenium , JUnit/TestNG , or other automation tools Familiarity with TestRail , JIRA , or similar platforms Knowledge of API testing , performance testing , and SQL Strong attention to detail, communication, and problem-solving skills Nice to Have More ❯

could be your perfect next step. Why Join Ten10? Were proud to be one of the UKs leading independent consultancies for Quality Engineering, Software Testing, RPA, and DevOps . Our mission is simple: help our clients achieve their goals by implementing innovative, high-quality engineering practices. Heres what makes … model gives you the balance you need. The Role As a Principal Technical Consultant , youll bring your extensive knowledge of software engineering, automation, and performance testing to create bespoke solutions for our clients. Youll also take a leadership role, guiding your team to success and leading by example. … What Youll Be Doing Design and Develop: Build and support automation or performance test frameworks using the most appropriate solutions. Whether open source or commercial, or a combination . Collaborate with Clients: Work closely with clients to understand their requirements and create tailored QA strategies. Provide Expert Insights: Conduct More ❯

be working on multiple streams, and we expect you to balance your day-to-day tasks. At Evri we carry out several types of performance testing: performance, stress, scalability, recovery, and portability testing. As a member of our team, you are expected to be an industry expert … support the development of relevant policies and standards aligned with industry best practices. You will join early in a systems lifecycle to determine its performance testing needs and ensure everything required is in place. For each test, you will monitor resources, investigate discrepancies, and provide solutions to stakeholders … with our development and service teams, provide feedback and guidance on scaling rules, instance sizing, and the best course of action in cases where performance degradation is identified. You will be accountable for: Validating application features in production-like environments to ensure product stability from inception to release. Joining More ❯

London) Join a Global Tech-Driven Property Marketplace Are you an experienced QA Lead with a passion for driving quality in web and mobile testing? Join a fast-growing, innovative global technology platform that is leading the way in transforming its B2C services. Backed by substantial investment and a … and feedback to improve processes and drive continuous improvement. Test Strategy Development: Design and implement robust test strategies, including functional validation, API/interface testing, cross-platform compatibility, negative test cases, and exploratory testing. Regression & Release Testing: Develop and maintain comprehensive regression test suites, ensuring product stability with … each release cycle. Risk-Based Testing: Perform risk-based testing to maximise test coverage while enhancing efficiency. Automation Expertise: Create and maintain scalable test automation scripts, integrating continuous testing seamlessly within CI/CD pipelines to ensure rapid and reliable delivery. Test Suite Execution & Monitoring: Regularly execute More ❯

beyond them. And if you're like us, we can offer you the ultimate career opportunity that will light a fire within you. Lead Performance Test Engineer - Southampton (hybrid). So, what's the role all about? We are looking for a talented Lead Performance Test Engineer to … an impact? Understanding the functional and non-functional requirements Evaluating the objectives of the service level agreement Designing the test scripts Identifying parameter for testing Executing performance runs Using consistent metrics for monitoring Identifying bottlenecks, and where they occur Interpreting results and graphs Understand describe the relationship between … queues and sub-systems. Identify suggestions for performance tuning. Preparing the test report Qualifications Demonstrated capability to drive out Test Strategies in a global organization and to oversee the testing team activities and initiatives for best practices. Have you got what it takes? At least 10+ years' experience More ❯

the bigger picture and understands the customer impact of engineering decisions. You’ll be responsible for driving continuous integration and delivery, implementing a robust testing strategy across the test pyramid, and reducing reliance on large end-to-end (E2E) tests. As the product moves into production, your focus will … shift toward production readiness, owning testing across observability tooling, security validation, recovery procedures, performance & load testing, and disaster recovery planning. You’ll be the voice of risk in engineering, able to assess, articulate, and influence decisions around test-related risk, and make clear judgments on what is … to increase non-functional test coverage. The right person will be equally confident in functional and non-functional areas—this is not a pure performance testing role. Experience Needed You’ve operated at a Senior or Lead level as an IC for some time and enjoy being hands More ❯

the bigger picture and understands the customer impact of engineering decisions. You’ll be responsible for driving continuous integration and delivery, implementing a robust testing strategy across the test pyramid, and reducing reliance on large end-to-end (E2E) tests. As the product moves into production, your focus will … shift toward production readiness, owning testing across observability tooling, security validation, recovery procedures, performance & load testing, and disaster recovery planning. You’ll be the voice of risk in engineering, able to assess, articulate, and influence decisions around test-related risk, and make clear judgments on what is … to increase non-functional test coverage. The right person will be equally confident in functional and non-functional areas—this is not a pure performance testing role. Experience Needed You’ve operated at a Senior or Lead level as an IC for some time and enjoy being hands More ❯

for a core B2B Enterprise SaaS product. Core Responsibilities & Expectations: Lead QA strategy across the product vision. The focus is evolving from deep technical testing (already well-established) to driving production readiness. You'll take ownership of areas like: Observability tooling Security validation Recovery procedures Performance & load testing Disaster recovery planning Be the voice of risk in the engineering organisation—assessing, articulating, and influencing decisions around testing and risk. You’ll be empowered to draw a hard line when needed. Act as a quality evangelist across teams, including: Coaching and mentoring QA Engineers (4–6 across … a hands-on QA career across both functional and non-functional testing. You’re confident across the QA spectrum—this isn’t a pure performance testing role, but depth in that area is a bonus. Experience with chaos engineering (especially Azure Chaos Studio) is highly desirable but not More ❯

for a core B2B Enterprise SaaS product. Core Responsibilities & Expectations: Lead QA strategy across the product vision. The focus is evolving from deep technical testing (already well-established) to driving production readiness. You'll take ownership of areas like: Observability tooling Security validation Recovery procedures Performance & load testing Disaster recovery planning Be the voice of risk in the engineering organisation—assessing, articulating, and influencing decisions around testing and risk. You’ll be empowered to draw a hard line when needed. Act as a quality evangelist across teams, including: Coaching and mentoring QA Engineers (4–6 across … a hands-on QA career across both functional and non-functional testing. You’re confident across the QA spectrum—this isn’t a pure performance testing role, but depth in that area is a bonus. Experience with chaos engineering (especially Azure Chaos Studio) is highly desirable but not More ❯

the overall quality of our software applications. Responsibilities: 1. Test Automation Development: Develop and maintain automated test scripts using Cypress to verify the functionality, performance, and reliability of our web applications. 2. Contract testing: Develop and maintain contract testing for APIs via Postman and adding them in … in TestRail based on project requirements and user stories. 4. Test Execution: Execute automated test scripts, analyze test results, and report defects. Perform regression testing as necessary. 5. Continuous Integration: Integrate automated tests into the continuous integration (CI) pipeline for regular and automated testing on multiple environments. 6. … 8. Collaboration: Collaborate with cross-functional teams, including developers, product managers, and business analysts, to understand product requirements and provide quality assurance feedback. 9. Performance Testing: Contribute to performance and load testing efforts to identify and address scalability and performance issues. 10. Documentation: Create and More ❯

the overall quality of our software applications. Responsibilities: 1. Test Automation Development: Develop and maintain automated test scripts using Cypress to verify the functionality, performance, and reliability of our web applications. 2. Contract testing: Develop and maintain contract testing for APIs via Postman and adding them in … in TestRail based on project requirements and user stories. 4. Test Execution: Execute automated test scripts, analyze test results, and report defects. Perform regression testing as necessary. 5. Continuous Integration: Integrate automated tests into the continuous integration (CI) pipeline for regular and automated testing on multiple environments. 6. … 8. Collaboration: Collaborate with cross-functional teams, including developers, product managers, and business analysts, to understand product requirements and provide quality assurance feedback. 9. Performance Testing: Contribute to performance and load testing efforts to identify and address scalability and performance issues. 10. Documentation: Create and More ❯

with all project specifications. Responsible for conducting commissioning activities per FläktGroup’s established scripts and additional equipment as required, while ensuring proper validation and performance testing of HVAC and electrical systems. Coordinate with the local Project Manager to ensure strict adherence to health, safety, and environmental (HSE) protocols … of data center standards (e.g., TIER, ISO certifications) and international safety standards is an advantage. safety standards is an advantage. Skills: Proficient in commissioning, testing, and troubleshooting of HVAC and electrical systems. Strong understanding of airflow principles and performance testing (electricity, pressure, temperature, humidity, etc.). Methodical More ❯

As part of the Global Equities Front Office technology team, an opportunity exists to build/extend an automated testing framework used to validate several Cash Equities Trading platforms. Working as part of a small team, the role will cover the implementation of a framework which will allow the … automation of system/regression, regulatory and volume testing requirements for local platforms, and working collaboratively with colleagues overseas to implement more widely The candidate will require demonstrable experience implementing automated testing frameworks within a front office environment. The framework is primarily developed in Python; experience with mutli … Manage priorities in cooperation with the development leads for each platform and colleagues overseas Assist the Global QA teams in the use of the testing framework Document usage of the testing framework Qualifications/Experience: Extensive experience with Python (3.x), including multi-threading and performance tuning Knowledge More ❯

As part of the Global Equities Front Office technology team, an opportunity exists to build/extend an automated testing framework used to validate several Cash Equities Trading platforms. Working as part of a small team, the role will cover the implementation of a framework which will allow the … automation of system/regression, regulatory and volume testing requirements for local platforms, and working collaboratively with colleagues overseas to implement more widely The candidate will require demonstrable experience implementing automated testing frameworks within a front office environment. The framework is primarily developed in Python; experience with mutli … framework Manage priorities in cooperation with the development leads for each platform and colleagues overseas Extensive experience with Python (3.x), including multi-threading and performance tuning Knowledge/Experience of implement software using the FIX protocol Knowledge/Experience of implement software using Java (Spring framework) Experience with Unix More ❯

As part of the Wireless Logic family, you’ll have the chance to collaborate with brilliant minds in R&D and directly influence the testing and automation strategies for our high-performance platform. What we’re all about: Any company can tell you about how they are a … Participate in refinement and design sessions , reviewing code and offering feedback to optimize functionality. Develop comprehensive test plans and detailed test cases to validate performance and identify bugs across platforms. Build, maintain, and optimize automated test scripts and testing pipelines to ensure consistent results. Help define and improve … automated testing processes , continuously driving quality in both platform and application testing. The Secret Sauce (Key Experience & Skills): Extensive experience in UI & API testing (front-end & back-end) Strong expertise in Playwright, Java, and TypeScript Proven ability to drive shift-left testing in an agile environment Highly More ❯

As part of the Wireless Logic family, you’ll have the chance to collaborate with brilliant minds in R&D and directly influence the testing and automation strategies for our high-performance platform. What we’re all about: Any company can tell you about how they are a … Participate in refinement and design sessions , reviewing code and offering feedback to optimize functionality. Develop comprehensive test plans and detailed test cases to validate performance and identify bugs across platforms. Build, maintain, and optimize automated test scripts and testing pipelines to ensure consistent results. Help define and improve … automated testing processes , continuously driving quality in both platform and application testing. 🔧 The Secret Sauce (Key Experience & Skills): Extensive experience in UI & API testing (front-end & back-end) Strong expertise in Playwright, Java, and TypeScript Proven ability to drive shift-left testing in an agile environment Highly More ❯

candidate will have experience with Selenium, Cucumber BDD, Java, and integrating with ADO pipelines and GIT repositories. Responsibilities include ensuring software quality through rigorous testing and effective test management practices. Work Requirements Location: Basingstoke, with at least 3 days in the office per week UK Right to Work: Must … travel opportunities Compliance: Adhere to all relevant policies and laws Key Duties and Responsibilities Implement and maintain Cucumber BDD frameworks Utilize Selenium for automation testing Perform API testing with Postman Use Java for scripting (basic skills required) Integrate automation with ADO pipelines and manage code in GIT Conduct … performance testing using JMeter Identify, debug, and troubleshoot issues Learn and adapt to complex project requirements Lead testing efforts, create test plans/scripts, and manage test life cycle Apply Agile/Scrum methodologies Collaborate effectively within a global team Mentor and train new testers Develop and More ❯

managers to understand project requirements and deliverables. To act as the QA point of contact in cross-team discussions, offering insight into defect status, testing progress, and release readiness. To coordinate and execute end-to-end validation processes involving backend systems, APIs, and third-party vendors. To perform functional … to ensure effective defect resolution. Design, document, and execute test plans and test cases based on business requirements and technical specifications. Perform detailed manual testing to validate functionality, usability, and performance. Support the implementation of automation scripts using Selenium and API testing tools where applicable. To Contribute to … and best practices. Participate in agile ceremonies such as sprint planning, retrospectives, and backlog grooming. Required Skills Should have good QA experience in software testing (manual and automation). Strong knowledge of QA methodologies, tools, and processes. Experience with defect tracking and test management tools (e.g., JIRA, TestRail, Zephyr More ❯

and dependencies with the Project Manager suggesting mitigations where appropriate. Required Technical Skills: Designing and building scalable systems in the cloud. Python: building and testing REST-ful API services. (C# a bonus but not mandatory) Automated testing: unit, integration, component end-to-end, and performance testing More ❯

and multi-mode optical fiber cable, test and inspection equipment, and our award-winning Data Center Interconnect solution, enabling centralized resource management for enhanced performance across multiple data center facilities. Our recent European expansion brings end-to-end, sustainable optical fiber solutions closer to our valued EMEA customers, prioritizing … their unique configurations. Provide technical expertise on how to scale products to meet the demands of large, distributed systems and cloud environments. Product Demonstration & Testing Lead product demonstrations and proof-of-concept (POC) testing to showcase the value of our solutions in large-scale, high-performance environments. … Conduct system validation and performance testing in collaboration with customers and product development teams to ensure that solutions meet expected operational benchmarks. Training & Technical Enablement Provide in-depth training to customer teams, empowering them to optimize product use and performance in their hyperscale environments. Create and deliver More ❯