26 to 50 of 60 Performance Testing Jobs in London

year FTC (potential to extend to full-time). So, what's the role all about? Working as part of the engineering team you will participate in all testing activities for the ContactEngine platform. This will include functional and non-functional testing using a combination of manual and automated testing with a focus on, and continual drive … towards automation. How will you make an impact? Participate in all testing activities within the agile pipeline - estimation, prioritisation, planning and coordination. Provide input into platform architecture and implementation of automation tooling and frameworks to facilitate testing, continuous integration, delivery, and deployment. Create and execute detailed, comprehensive, and well-structured test plans and test cases that will include … Support the investigation of bugs and live production issues. Recreate and verify defects with detailed replication steps, working with the engineering team to ensure efficient resolution. Perform thorough regression testing prior to releasing and as and when any bugs are resolved. Develop and maintain automated test suites across staging and production environments. Creation and maintenance of test data. Stay More ❯

SDET to join their team. Key Responsibilities: Lead and manage a small team of SDETs, including recruitment and onboarding Mentor junior and senior SDETs to grow their technical and testing capabilities Drive test automation strategies and team planning for complex software systems Collaborate cross-functionally to document and maintain scalable automation frameworks Advocate Agile best practices throughout the development … lifecycle Provide training sessions on automation tools, frameworks, and testing methodologies Technical Requirements: Strong coding skills in Java Hands-on experience with: Selenium WebDriver for UI automation JMeter for performance testing RESTful APIs testing Agile/Scrum methodologies What You Bring: Proven experience leading/managing small technical teams Strong background in automation testing and More ❯

in agile test planning tools like qTest, TestRail, or similar platforms. Perform a variety of tests, such as Smoke/Sanity, Functional/Non-Functional, Regression, API, Database, and Performance Testing, in accordance with established test plans or strategies. Investigate and oversee application logs to identify issues along with managing defects meticulously using tools such as Jira, Asana … quality champion for your area of functional expertise. Support the deployment of all product releases, fix packs, hot fixes, and provide troubleshooting for client issues. Ensure consistent communication of testing milestones and progress by delivering regular and precise updates in a timely manner. Maintain a positive and professional demeanor, demonstrating a strong commitment to achieving organizational goals through dedicated … work ethic. Guide and educate junior QA engineers or trainees on quality assurance practices and product knowledge. Required Skills & Experience : 2-3 years of Quality Assurance experience in testing for Web and Mobile Applications, as well as Web Services, ideally within a SaaS framework. A proven track record in testing GUI and functional user workflows, going beyond basic More ❯

organisations to unlock the full potential of their data. You will design, develop, and maintain high-quality, scalable, and secure systems, applying engineering best practices and rigorous attention to performance and security across the full development lifecycle. Leading by example, you'll drive technical excellence through active contribution to architecture reviews, design discussions, and code reviews, fostering a culture … collaborate across engineering teams to build, refine, and enrich data-driven solutions that span diverse systems, data models, and cloud-native architectures. By championing best practices in engineering, including testing, observability, security, and robust documentation, you'll play a key role in ensuring Axon's platforms are reliable, maintainable, and prepared to scale. What You'll Do Design, develop … deploy code for an in-house L7 (reverse) proxy that allows users to securely access parts of the data platform directly Drive best practices around production data systems, including performance, testing, security, observability, and documentation. Troubleshoot and resolve issues in production environments to ensure data integrity and platform reliability What you bring: Bachelor's Degree in Computer Science More ❯

initiatives and support internal project teams Collaborate with engineering, product, and business teams to align on requirements and architectural direction Ensure robust, scalable, and high-performing software solutions Conduct performance testing, load balancing, and deployment planning Contribute to the creation of tools and scripts supporting platform delivery Support continuous integration and DevOps practices Essential Skills & Experience: Java, Spring More ❯

who currently require an SDET for an AI-led business transformation. As an SDET, you will play a critical role in designing, developing, and executing automated test frameworks and performance testing strategies. You will collaborate closely with cross-functional teams to ensure high-quality delivery of AI and machine learning-powered solutions that transform business processes worldwide. Previous … experience in testing AI models or services. Strong programming skills in Python Expertise with Pytest, Locust, Selenium and Playwright frameworks Experience with performance testing tools in JMeter or Blaze Meter Knowledge of artificial intelligence and machine learning concepts Solid understanding of software testing methodologies and best practices Excellent problem solving skills and ability to work in 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 ❯

tests, analyse results, and prioritise manual tests for automation to give the best return on investment.Test Documentation: Document test procedures, test cases, and test results, and maintain evidence of testing activities. Performance Testing, Security Testing What we are looking for Proven experience in a similar role with its primary focus being automated testing. Full software development … CD) processes and tools. Proficiency in at least one programming language, preferably TypeScript or Python Experience with test automation tools and frameworks (eg Selenium, Cypress, Playwright, Appium), cross-browser testing strategies, and in testing web and mobile apps.Remote Working Salary to 60K More ❯

likely to be once per week on average. About Capacitas Founded in 2002 and based in London, Capacitas is the only consulting firm specialising exclusively in reducing cost and performance risk in business-critical IT systems: We are thought leaders and trusted advisors in IT Performance Assurance We have a unique methodology that strikes the balance between service … have extensive experience protecting high revenue, high availability clients We invest in R&D - developing solutions to enable fast, efficient and scalable delivery At Capacitas we know what great performance looks like for our clients and their customers. We enable our client’s IT systems to be available, fast and cost efficient without slowing their rate of business change. … of projects you work on will vary according to current demand and your professional development path. Typical projects include: Looking for ways to reduce client money spent on IT performance Cost Ops and Fin Ops Automating through use of DevOps capability Conducting systems risk management assessments Performance audits Designing performance test plans to address performance risk More ❯

likely to be once per week on average. About Capacitas Founded in 2002 and based in London, Capacitas is the only consulting firm specialising exclusively in reducing cost and performance risk in business-critical IT systems: We are thought leaders and trusted advisors in IT Performance Assurance We have a unique methodology that strikes the balance between service … have extensive experience protecting high revenue, high availability clients We invest in R&D - developing solutions to enable fast, efficient and scalable delivery At Capacitas we know what great performance looks like for our clients and their customers. We enable our client’s IT systems to be available, fast and cost efficient without slowing their rate of business change. … of projects you work on will vary according to current demand and your professional development path. Typical projects include: Looking for ways to reduce client money spent on IT performance Cost Ops and Fin Ops Automating through use of DevOps capability Conducting systems risk management assessments Performance audits Designing performance test plans to address performance risk More ❯

execute comprehensive test plans for data migrations, database implementations, and ETL processes. Perform data validation and ensure data integrity throughout the migration process. Implement integrated test automation to streamline testing procedures and increase efficiency. Utilize SQL query capabilities to analyze and manipulate data for testing and validation purposes. Conduct database load and performance tests to assess system … scalability and identify potential bottlenecks. Qualifications and Experience: Bachelor's degree in Computer Science, Data Science, or a related field. Proven experience in testing data migrations, database implementations, and ETL processes, preferably in the financial domain. Familiarity with cloud environments, especially AWS, is highly desirable. Strong knowledge of SQL and experience in writing complex queries for data validation and … testing. Proficiency in data validation techniques and the ability to identify and troubleshoot data quality issues. Hands-on experience with integrated test automation tools and frameworks. Familiarity with performance testing methodologies and tools for assessing database load and system scalability. Excellent analytical skills and attention to detail, ensuring high-quality testing and accurate results. Strong communication 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 ❯

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 ❯

Workflows, Flow Designer flows, and Integration Hub spokes. Support integrations using REST, SOAP, MID Server, Kafka, etc. Translate architecture/designs into scalable, performant code aligned with ServiceNow standards. Performance Optimization Profile and debug scripts, workflows, and queries to identify bottlenecks. Optimize GlideRecord, ACL performance, background jobs, and indexing. Collaborate with architects on performance improvement strategies. Code … Quality & Technical Debt Identify and resolve technical debt in custom modules. Participate in code reviews; refactor and write clean, modular code following best practices. Testing & Validation Conduct unit and regression testing; assist with performance testing. Use Instance Scan, Script Tracer, Debug Logs, etc. to troubleshoot and resolve issues. Agile Collaboration & Demo Readiness Actively participate in Agile/… Owners, and Developers to ensure business alignment. Prepare instances for demos/UATs: data setup, role mapping, and environment cleanup. Lead technical demos and ensure environments are stable and performance-tested. Release Support Define/manage release readiness criteria from a technical standpoint. Support bi-weekly feature releases, ensuring smooth and reliable delivery. Randstad Technologies is acting as an More ❯

successful candidate will join our Systems Test Team, as a Senior Test Engineer, within the Engineering Department in New Malden. With the nature of our work being hands on testing of our products, the role is predominantly office based. The role will involve working closely with the wider Engineering Team to understand project requirements, defining and agreeing testing scope, and supporting all software and hardware testing functions. The role offers great opportunity to be part of the development of our Navigation solutions that form the Integrated Bridge System (IBS) solutions that we offer. As your product knowledge increases, the role of the Senior Systems Test Engineer also becomes that to support our Lead Test Engineer and … Manager in the planning and coordination of our teams' testing activities, driving efficiency and quality improvements, and supporting our team in all aspects of their work. About You Key Responsibilities Taking ownership of testing for more complex and higher-risk components of the system Product knowledge - deepening expertise in the product's architecture and functionality. Ability to independently More ❯

discussion at offer stage. Job Introduction Responsible for collaborating on and contributing to creating, executing, and reporting on tests for radio playout systems. While the role is focused on testing, prior experience as a user of radio playout or broadcast systems is highly desirable to ensure a deep understanding of user workflows and expectations. The role involves working closely … with engineering, product, and operations teams to ensure high-quality delivery of radio broadcast technology. Main Responsibilities Oversee acceptance testing of new installations, ensuring test logs/registers are kept up to date. Work with system vendors and suppliers to ensure successful delivery of solutions. Create and maintain test cases for radio playout systems, including functional, system, regression, and … ensure test coverage aligns with user workflows and technical requirements. Provide insight into usability and accessibility from a user's perspective. Support continuous improvement through experimentation and analysis. Communicate testing progress, risks, and issues to stakeholders at various levels. Are you the right candidate? Experience assisting with the design, delivery, support or operation of radio production and playout systems More ❯

salary of this grade is £46,169 for London and £42,382 for other locations Published on 26 June 2025 Deadline 6 July 2025 We are seeking highly skilled Performance Test Engineers to join our dynamic Quality Engineering team. In this role, you will be responsible for conducting performance testing at program level, ensuring that our products … meet the highest standards of non-functional quality. You will collaborate closely with developers, product managers, architects and other stakeholders to design and execute comprehensive performance test plans that cover all aspects of the product life cycle. Additionally, you will work with Senior test Engineers and cross-product Test Delivery Leads to support the seamless integration and delivery of … performance testing across the program, while identifying opportunities for process improvement and innovation. This is an exciting opportunity to contribute to a multidisciplinary team and play a key role in driving testing excellence. As a Test Engineer you'll: collaborate with stakeholders including product managers, developers, and architects to define performance requirements, ensuring systems are designed More ❯

hire the best of the best to ensure you're working with people you can constantly learn from. You're trusted to get your work done your way while testing the limits of what's possible and what's next. We work hard to provide a culture where everyone feels supported, and our employees feel it-their votes helped … and more. Ready to join us? Your Role We're seeking an automation-focused QA Engineer II to join one of our cross-functional product teams in our Human Performance group. This squad is focused on building cutting-edge solutions for athletes and sports teams that directly impact how they train, compete and achieve peak performance. We're looking … focus on quality. You understand the big picture and strive to use what you know to improve quality and velocity. Technical know-how. You have in-depth experience with testing desktop, web and/or mobile applications, and deep knowledge of automation with tools such as Playwright and Selenium. You've worked with developers and QA to shift testing More ❯

hire the best of the best to ensure you're working with people you can constantly learn from. You're trusted to get your work done your way while testing the limits of what's possible and what's next. We work hard to provide a culture where everyone feels supported, and our employees feel it-their votes helped … and more. Ready to join us? Your Role We're seeking an automation-focused QA Engineer II to join one of our cross-functional product teams in our Human Performance group. This squad is focused on building cutting-edge solutions for athletes and sports teams that directly impact how they train, compete and achieve peak performance. We're looking … focus on quality. You understand the big picture and strive to use what you know to improve quality and velocity. Technical know-how. You have in-depth experience with testing desktop, web and/or mobile applications, and deep knowledge of automation with tools such as Playwright and Selenium. You've worked with developers and QA to shift testing More ❯

have an experiment-first mindset, wanting to ship quickly and learn quickly. You're at home working across the whole stack, from creating delightful frontend experiences to improving our testing and deployment pipeline. You thrive in small, cross functional teams, working in close collaboration with other Engineers, Product Managers and Designers. You enjoy working in a relatively small company … User centricity and an attitude of taking responsibility for the product and code you ship to our students. An understanding - and balanced opinions - of non-functional requirements including accessibility, performance, testing, usability and security. Experience with Git and GitHub. Nice to-haves: Experience working with our favoured tools: TypeScript, Next.js, React, Express, Postgres. Experience with search engine optimisation … SEO), eg programmatic pages, front-end performance, best practices. Experience designing and running experiments. Experience developing CI/CD and deployment pipelines (e.g. GitHub Actions, AWS/Google Cloud, Jest). Working for a fast-growing, bootstrapped education company is a rare opportunity to build a hugely impactful and sustainable business. Our positions are challenging, but also come with More ❯

Calastone's Asset Management and Asset Servicing platforms. Key Responsibilities Leadership and Development Own the development and growth of a team of engineers, fostering a culture of accountability, high performance, and continuous improvement. Provide structured guidance, hands-on mentoring, and candid feedback to support professional growth and team development. Identify and nurture emerging engineering talent within the team to … C#, Angular, Microsoft Azure, enterprise messaging systems) to lead innovation and address technical debt. Contribute to architectural discussions, providing scalable and sustainable solutions. Ensure technical documentation, operational readiness, and performance testing are maintained. Stakeholder Management Work with Product, Operations, and Commercial teams to achieve business goals. Communicate effectively with both technical and non-technical stakeholders. Service and Support More ❯

days remote working) Up to £90,000 Hyde is looking to recruit a Senior Salesforce Developer. As a Senior Salesforce Developer, you will be responsible for developing, integrating, testing, and maintaining existing and new features in the Hyde Salesforce and Contact Centre platform. You will also manage the Salesforce Development Team, ensuring high-quality development practices and adherence to … work to create sustainable, thriving neighbourhoods while supporting our customers to build better futures. Duties of a Salesforce Senior Developer: Manage the Salesforce Development Team, including engagement, coaching, and performance management. Prioritise and plan the teams workload and associated tasks. Provide training and support to equip team members with relevant business knowledge and skills. Translate user stories into functional … and actionable software within the Salesforce environment, following best practices. Perform unit testing, integration testing, and performance testing of new product functionality. Collaborate with business representatives and IT colleagues to ensure seamless development and optimisation of the Salesforce platform. Skills and Experience Required: Certified Salesforce Developer with experience in a senior or lead Salesforce development role. More ❯

working) Up to £90,000 We are looking to recruit a Senior Salesforce Developer (Marketing Cloud). As a Senior Salesforce Developer, you will be responsible for developing, integrating, testing, and maintaining existing and new features in the Salesforce and Contact Centre platform. You will also manage the Salesforce Development Team, ensuring high-quality development practices and adherence to … work to create sustainable, thriving neighbourhoods while supporting our customers to build better futures. Duties of a Salesforce Senior Developer: Manage the Salesforce Development Team, including engagement, coaching, and performance management. Prioritise and plan the teams workload and associated tasks. Provide training and support to equip team members with relevant business knowledge and skills. Translate user stories into functional … and actionable software within the Salesforce environment, following best practices. Perform unit testing, integration testing, and performance testing of new product functionality. Collaborate with business representatives and IT colleagues to ensure seamless development and optimisation of the Salesforce platform. Skills and Experience Required: Certified Salesforce Developer with experience in a senior or lead Salesforce development role. More ❯

working) Up to £90,000 Hyde is looking to recruit a Senior Salesforce Developer (Marketing Cloud). As a Senior Salesforce Developer, you will be responsible for developing, integrating, testing, and maintaining existing and new features in the Hyde Salesforce and Contact Centre platform. You will also manage the Salesforce Development Team, ensuring high-quality development practices and adherence … work to create sustainable, thriving neighbourhoods while supporting our customers to build better futures. Duties of a Salesforce Senior Developer: Manage the Salesforce Development Team, including engagement, coaching, and performance management. Prioritise and plan the team’s workload and associated tasks. Provide training and support to equip team members with relevant business knowledge and skills. Translate user stories into … functional and actionable software within the Salesforce environment, following best practices. Perform unit testing, integration testing, and performance testing of new product functionality. Collaborate with business representatives and IT colleagues to ensure seamless development and optimisation of the Salesforce platform. Skills and Experience Required: Certified Salesforce Developer with experience in a senior or lead Salesforce development More ❯

the latest supported version; Design new and revise existing document generation processes; Follow the specific standards of each of our customers to ensure quality control; Assist in quality and performance testing. Required Skills: Bachelor's degree (BA/BS) in a related field such as information systems, mathematics, or computer science or equivalent work experience. Min. 5 years of More ❯