1 to 25 of 35 Performance Testing Jobs in London

Performance Test Engineer 450/day Inside IR35 Primarily Remote Occasional Travel to London Until 31st March 2027 ASAP Start We're looking for an experienced Performance Test Engineer to join a large-scale enterprise transformation programme, helping to ensure the performance, scalability and operational readiness … critical cloud-based services. You'll work closely with engineering, DevOps and QA teams to design and execute performance testing strategies, analyse system behaviour under load, and provide recommendations to improve application resilience and user experience. Key Responsibilities Design, develop and execute performance, load, stress and endurance ...

Performance Test Engineer £450/day | Inside IR35 | Primarily Remote | Occasional Travel to London | Until 31st March 2027 | ASAP Start We're looking for an experienced Performance Test Engineer to join a large-scale enterprise transformation programme, helping to ensure the performance, scalability and operational readiness … critical cloud-based services. You'll work closely with engineering, DevOps and QA teams to design and execute performance testing strategies, analyse system behaviour under load, and provide recommendations to improve application resilience and user experience. Key Responsibilities Design, develop and execute performance, load, stress and endurance ...

time hours per week. We are happy to discuss flexible working! Top 3 skills needed for this role: Expert in release quality governance Proven performance testing leadership Strong stakeholder influence & collaboration experience What this role is all about: As a Release Quality Manager, youll play a pivotal role … that keep quality front and centre across the IT estate. Working closely with agile engineering teams and external partners, youll embed best-in-class testing practices, drive performance testing excellence, and ensure every release meets the high bar we set before it reaches production. Its a role ...

Performance Test Engineer - Outside IR35 - 6 month initial contract - London/hybrid - up to £525 per day We're looking for an experienced Performance Test Engineer to lead and deliver end-to-end performance testing for a modern web platform built on a microservices architecture. … responsibilities: Define and implement the performance testing strategy. Design and execute load, stress, endurance, and capacity tests. Develop and maintain test scripts using JMeter or similar tools. Identify and analyse performance bottlenecks across applications and services. Work closely with Development, QA, and DevOps teams to resolve issues ...

Performance Test Engineer - Outside IR35 - 6 month initial contract - London/hybrid - up to £525 per day We're looking for an experienced Performance Test Engineer to lead and deliver end-to-end performance testing for a modern web platform built on a microservices architecture. … responsibilities: Define and implement the performance testing strategy. Design and execute load, stress, endurance, and capacity tests. Develop and maintain test scripts using JMeter or similar tools. Identify and analyse performance bottlenecks across applications and services. Work closely with Development, QA, and DevOps teams to resolve issues ...

Security Cleared - Performance Test Engineering Consultant - Contract Location: Remote with ADHOC travel to London Start Date: August 2026 IR35 Status: Inside IR35 Employment Type: Contract, initial 6 months. Please note this role requires active Security Clearance About Scale Factory We are an AI enablement consultancy. Delivering quality … combine this engineering discipline with cutting-edge AI expertise to deliver robust, scalable foundations that turn ambitious transformation into reliable reality. Role Responsibilities Deliver performance testing solutions to a range of clients, ensuring systems are scalable, reliable, and performant. Design, implement, and execute performance test strategies, including ...

practices. The Automation Test Engineer will play a key role in embedding quality throughout the software development lifecycle, working across UI, API, accessibility and performance testing while supporting continuous delivery at enterprise scale. Responsibilities for the Automation Test Engineer: Design, develop and maintain scalable UI and API automation … Develop and execute functional, regression, integration and end to end automated tests Perform UI automation using Selenium WebDriver and Playwright Carry out API testing using REST Assured, Postman and Swagger Conduct accessibility testing to ensure compliance with WCAG standards Support CI/CD pipelines and continuous testing ...

work and life About the Role As a Principal Software Developer in Tes t, 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. … will: 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. P rovide Expert Insights: Conduct technical QA health ...

your development throughout the programme. You will receive: A dedicated mentor Regular 1:1 check-ins with SME line management Peer support Bi annual performance review and goals aligned to business KPIs Friendly and collaborative working environment Key duties: During the programme, you will work across a variety … Agile delivery processes SDET/Quality Engineering Learn how quality and automation are built into modern software delivery. Potential exposure to: Test automation API testing Performance testing Regression testing Quality assurance processes Automation frameworks About you: We're particularly interested in graduates who: Enjoy solving problems ...

Performance Test Engineer - Outside IR35 - 6 month initial contract - London/hybrid - up to £525 per day We're looking for an experienced Performance Test Engineer to lead and deliver end-to-end performance testing for a modern web platform built on a microservices architecture. … responsibilities: Define and implement the performance testing strategy click apply for full job details ...

delivering high-quality, reliable artificial intelligence and data-driven solutions within a complex, enterprise-scale environment. This is an exciting opportunity to lead testing strategy across cutting-edge AI systems, ensuring robust validation, strong governance, and continuous quality improvement across digital platforms. The Role As a Senior Test Engineer … will operate at a strategic level, shaping testing approaches for AI and data services while remaining hands-on across automation, validation, and delivery pipelines. You will: Lead the design and execution of end-to-end test strategies across AI and digital programmes Ensure quality across AI models, data pipelines ...

delivering high-quality, reliable artificial intelligence and data-driven solutions within a complex, enterprise-scale environment. This is an exciting opportunity to lead testing strategy across cutting-edge AI systems, ensuring robust validation, strong governance, and continuous quality improvement across digital platforms. The Role As a Senior Test Engineer … will operate at a strategic level, shaping testing approaches for AI and data services while remaining hands-on across automation, validation, and delivery pipelines. You will: Lead the design and execution of end-to-end test strategies across AI and digital programmes Ensure quality across AI models, data pipelines ...

Centre, working remotely as part of a collaborative team delivering enterprise-scale solutions across a range of sectors. This is more than a traditional testing role. Alongside manual and automated testing, you'll validate infrastructure, environments, deployments and integrations, working closely with Developers, DevOps Engineers and Project teams … services and application layers. Validate deployments, configuration changes and environment stability across cloud platforms, servers and CI/CD pipelines. Perform integration, regression and performance testing across multiple platforms. Work closely with Development and Operations teams to identify, troubleshoot and resolve issues early in the delivery lifecycle. Automate ...

working - requires travel to London and customer sites + Up to £50,000 per annum plus bonus, pension and training Key Skills: Background in Testing DevOps Infrastructure Hybrid | Competitive Salary + Benefits This is a broad, hands-on role: it is not a pure software testing position … your work will be far more varied. Alongside manual testing, you'll validate infrastructure, environments, deployments and integrations, working closely with developers, DevOps engineers and project teams to plan, execute and continually improve the testing that gives our clients robust, secure systems. Key Responsibilities * Design, execute and maintain ...

opportunity to play a key role in delivering complex, business-critical change within a large-scale retail environment. We're looking for an accomplished testing professional with a strong track record of leading end-to-end testing across complex, integrated systems. You'll be responsible for defining … testing strategy, coordinating multiple stakeholders and ensuring the successful delivery of high-quality solutions. Key responsibilities include: Defining and owning the overall test strategy, test plans and testing approach. Establishing clear test entry and exit criteria, governance and reporting. Leading System Integration Testing (SIT) and coordinating support ...

opportunity to play a key role in delivering complex, business-critical change within a large-scale retail environment. We're looking for an accomplished testing professional with a strong track record of leading end-to-end testing across complex, integrated systems. You'll be responsible for defining … testing strategy, coordinating multiple stakeholders and ensuring the successful delivery of high-quality solutions. Key responsibilities include: Defining and owning the overall test strategy, test plans and testing approach. Establishing clear test entry and exit criteria, governance and reporting. Leading System Integration Testing (SIT) and coordinating support ...

Apps. As a Principal CI/CD & Automation Engineer, you will lead the design and implementation of CI/CD pipelines and automated testing strategies for streaming and web applications. You will play a critical role in building a new function within the team, driving best practices, and enabling … Lead the design, implementation and continuous improvement of CI/CD pipelines across web applications. Define and deliver end‐to‐end automated testing strategies covering UI, API, integration and performance testing. Develop scalable automation frameworks and advanced Python‐based automation solutions. Embed testing within CI/ ...

Apps. As a Principal CI/CD & Automation Engineer, you will lead the design and implementation of CI/CD pipelines and automated testing strategies for streaming and web applications. You will play a critical role in building a new function within the team, driving best practices, and enabling … Lead the design, implementation and continuous improvement of CI/CD pipelines across web applications. Define and deliver end-to-end automated testing strategies covering UI, API, integration and performance testing. Develop scalable automation frameworks and advanced Python-based automation solutions. Embed testing within CI/ ...

with platform teams to optimise cost, scale, and reliability of inference endpoints. Monitoring, Drift Detection & Observability Define observability standards for feature drift, concept drift, performance degradation, and data integrity. Lead the creation of dashboards, benchmarks, and automated alerting across the ML ecosystem. Ensure telemetry pipelines adhere to privacy, data … minimisation, and compliance policies. Drive adoption of proactive failover, shadow-mode testing, and continuous validation patterns. Security, Compliance & ML Governance Set and enforce ML-specific security standards including data minimisation, encryption, and PII handling. Oversee creation of Model Cards, lineage artefacts, and compliance documentation. Ensure ML systems meet governance ...

grow. As a Senior Software Developer in Test , youll: Work with our clients to design, build, and implement cutting-edge automation frameworks and testing solutions. Lead and mentor small teams of automation testers, providing guidance and technical direction. Take ownership of QA strategies, influencing testing best practices. Play … environments (e.g., SCRUM, Kanban). Solid technical development background with strong coding skills in Java, C#, TypeScript, JavaScript, or similar Proven expertise in automation testing, with hands-on experience using tools like Playwright, Selenium, Cypress, or RestAssured Strong knowledge of integration testing and automation frameworks Experience leading small ...

will help deliver and enhance critical clinical systems that support lifesaving services across the UK. This is an exciting opportunity for an experienced testing professional to lead the development of automation capabilities, drive quality improvements, and ensure that digital solutions are robust, reliable, and fit for purpose … environment. Working within the Clinical Services Product Centre, you will collaborate with technical specialists, delivery teams, and stakeholders to champion best practice in software testing and continuous improvement. This role offers the chance to combine strategic influence, technical expertise, and people leadership, helping to build a modern testing ...

direct impact on the business. What you'll do: * Develop and optimise trading algorithms for Cash Equities execution* Build and enhance low-latency, high-performance trading systems* Work closely with developers, quants and business stakeholders* Analyse trading system issues and identify opportunities for algorithmic improvement* Contribute to core trading … framework development, testing, scalability and reliability What you'll bring: * Strong C++ engineering experience* Experience in electronic trading, algo execution, market data or order execution systems* Strong understanding of low-latency/high-throughput systems* TCP/IP, UDP or multicast networking experience* Smart Order Routing, Best Execution ...

into reliable reality. Essential Skills & Experience Active Security Clearance Solid technical development background with strong coding skills in Java & JavaScript Proven expertise in automation testing, with hands‐on experience using tools Playwright & Selenium Strong knowledge of integration testing and automation frameworks Experience leading small teams of testers … contributing to the overall QA strategy Knowledge of performance testing tools like JMeter , Gatling , K6 or Neoload Hands‐on experience with CI/CD pipelines and tools (e.g., Jenkins, CircleCI, GitLab CI, Azure DevOps) Excellent communication and stakeholder management skills Let’s Build the Future Together ...

product managers and engineering leads to understand staffing requirements Hiring specialists Mentoring more junior members of the team on technical and non-technical skillsets Performance Testing and Optimisation Evaluating our AML systems against internal and external benchmarks Developing decisioning layers to find optimal trade-offs between precision … maintaining scheduled processes for data gathering and model retraining using automated pipelines Maintaining production-grade Python services A bit about you: Experience implementing, training, testing and evaluating performance of Machine Learning systems; Strong Python knowledge. A big plus for proven familiarity and experience with OOP principles; Experience with ...

traditional, strategic leadership position. You will not be executing manual scripts; instead, you will have complete ownership of the end-to-end testing lifecycle. Stepping in during the critical Design Phase, your primary focus will be defining the overarching test strategy, structuring detailed master test plans, and managing program … countries. Key Responsibilities Architect and deliver robust test strategies and detailed planning frameworks tailored for a global footprint. Take end-to-end accountability for testing quality gates, including Configuration Unit Testing, System Integration Testing (SIT), E2E, User Acceptance Testing (UAT), and Performance Testing. Bridge ...