1 to 25 of 53 Performance Testing Jobs in London

Performance Test Engineer - SC Cleared Location: Leeds or London (Hybrid) - 50% onsite We're partnering with a highly respected UK organisation undergoing a significant technology transformation and are looking for a Performance Test Engineer to help ensure the scalability, resilience, and reliability of critical digital platforms. This … opportunity to join a collaborative technology function where you'll shape performance testing strategy, influence engineering best practices, and work across cloud, hybrid, and on-premise environments. As a Performance Test Engineer, you'll be responsible for designing, executing, and analysing performance testing activities, helping ...

Performance Tester Rate: £300 - £365 Clearance required: BPSS + DV (SC issued in last 5 years/willingness to go for DV (DV Preferred) Nationality requirement: UK passport holder only Location: London Work type: Hybrid - Able to work 3 days per week on site. Security Cleared software testing test management test scripts agile methodology performance tests Apache JMeter Microsoft Visual Studio Atlassian Jira Atlassian Confluence Role Overview We are seeking an experienced Performance Tester to define and deliver the non-functional test approach for a complex, highly customised SharePoint Subscription Edition (SE) platform ...

Performance Tester Rate: 300 - 365 Clearance required: BPSS + DV (SC issued in last 5 years/willingness to go for DV (DV Preferred) Nationality requirement: UK passport holder only Location: London Work type: Hybrid - Able to work 3 days per week on site. Security Cleared software testing test management test scripts agile methodology performance tests Apache JMeter Microsoft Visual Studio Atlassian Jira Atlassian Confluence Role Overview We are seeking an experienced Performance Tester to define and deliver the non-functional test approach for a complex, highly customised SharePoint Subscription Edition (SE) platform ...

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 ...

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 ...

Clearance Option for candidates to be upgraded to DV! We're looking for a Quality/Test Engineer with experience in test automation and performance testing to support the delivery of software solutions within an Agile environment. You'll be involved throughout the testing lifecycle, helping … purpose. What you'll be doing Creating and executing test cases across multiple technology stacks Developing and maintaining automated test scripts Designing and implementing performance testing strategies Executing performance and load testing activities Investigating issues through debugging, tracing and log analysis Working closely with developers ...

Senior Performance Tester - Non-functional - 3 month contract - paying £550 Inside IR35 - Hybrid (2 days a week) We’re looking for an experienced Senior Performance Tester to join a high-performing team working on a global streaming platform that powers millions of users across video-on-demand … live services. What you’ll do: Develop and maintain a Gatling-based performance testing framework integrated into CI/CD pipelines. Define non-functional requirements and performance acceptance criteria. Analyze performance test results and production metrics to identify trends, risks, and improvements. Work with modern technologies ...

life About the Role As a Principal Software Developer in Tes t, you'll bring your extensive knowledge of software engineering, automation, and performance testing to create bespoke solutions for our clients. You'll 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. Provide Expert Insights: Conduct technical QA health checks ...

Hays are now looking for a Quality Engineer/Performance Tester for one of our local clients: £310 p/d Inside IR35 3 days p/w in the office, 2 WFH Location is one of either London, Manchester or Leicester We're looking for strong experience … performance and non-functional testing to support the delivery of large-scale digital services. The role will focus on ensuring applications are scalable, reliable and performant through a combination of performance testing, API testing and quality engineering practices. What you'll be doing Design, develop ...

willingness and eligibility to undergo DV Clearance (Mandatory) Role Overview We are looking for an experienced Test Manager to lead the end-to-end testing strategy, governance, and delivery for a complex enterprise programme. The successful candidate will be responsible for ensuring quality across functional, integration, automation, performance, and operational acceptance testing while managing stakeholders, risks, resources, and delivery timelines. This is a hands-on leadership role requiring strong technical testing expertise, experience managing complex projects, and the ability to drive quality assurance best practices across multiple teams including third party suppliers, and guide ...

ensuring the quality and reliability of every product release. We’re looking for someone who can create robust test plans, carry out thorough feature testing, and help establish automated testing practices that scale with our fast-growing product. Your work will give the team confidence to move quickly … test plans for new features Design, document, and execute manual test cases to validate functionality, usability, and edge cases Set up and maintain automated testing frameworks to increase test coverage and reduce manual effort over time Identify, document, and track defects, collaborating with developers to resolve issues quickly ...

help us deliver on our ambition – which is to help you achieve yours. Herbert Smith Freehills Kramer: Your goals. Our ambition The Opportunity The Performance & Observability Engineer plays a critical role in ensuring system reliability, scalability, and visibility across the entire technology stack. This role focuses on transitioning from … traditional monitoring to full observability, enabling deep performance insights, real-time issue detection, and proactive optimisation. The ideal candidate will have expertise in performance engineering, distributed tracing, logging, metrics, and automation, driving improvements across cloud, infrastructure, and application layers. Primary Responsibilities Performance Engineering & Optimisation Analyse application, database ...

work across the full lifecycle of a solution: understanding business challenges, shaping requirements, designing future-state processes, building, documenting and configuring solutions, integrating technologies, testing outputs, deploying solutions, supporting adoption and continually improving what has been delivered. We work with Appian as a core platform for workflow, case management … practice. Contribute to technical documentation, solution designs, architecture decision records, test evidence, release documentation, runbooks and user guidance. Participate in peer reviews, design reviews, testing, defect triage and continuous improvement of engineering practices. Coach & support developers to help instil engineering excellence. Support regression testing, functional testing, performance ...

LGBTQ+ business community. Please do not contact the recruiter directly. About the job you're considering Join our team as a Senior Non-Functional Testing (NFT) Consultant , for one of our financial service organisations. In this role, you won’t just be executing tests — you’ll be leading test … suppliers, ensuring that non-functional requirements are met with precision and foresight. This is a strategic leadership role where your expertise in Operational Acceptance Testing (OAT), performance testing, and stakeholder engagement will be critical. You’ll shape test strategies, influence supplier delivery, and ensure operational readiness across ...

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 ...

data integrity requirements.This role owns technical outcomes for complex components and services, influences architecture and platform evolution, and provides deep expertise across development, testing, and production support. While not a line‐management role, it carries strong expectations for technical leadership, mentoring, and collaboration across engineering, architecture, and product teams. … maintain C++ and Java services supporting FX matching and trading workflows.* Own technical delivery for key platform components, ensuring alignment with LSEG architectural principles, performance standards, and operational controls* Build and evolve low‐latency, high‐availability systems handling high message volumes and time‐critical processing.* Ensure systems meet ...

LGBTQ+ business community. Please do not contact the recruiter directly. Quality Test Engineer III Are you passionate about ensuring high-quality software through robust testing and automation strategies? Do you enjoy identifying defects early and improving systems to deliver seamless, reliable user experiences? About the team: The Search … Quality Engineer to join the Search and AI Platform team. This is a hands-on, automation-first role focused on API and service-level testing, with quality embedded throughout the development lifecycle rather than validated at the end. You will work closely with software engineers, quality engineers and technical ...

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 ...

Dell Command Update automations — to improve device stability and end-user experience. Troubleshoot and remediate audio, video, and conferencing reliability issues. Perform hardware and performance testing/benchmarking to support fleet standardization decisions. Autopilot & Provisioning Modernization Modernize Windows Autopilot and provisioning workflows to reduce legacy dependencies and improve … Profiles Device Filters, Dynamic Groups, and scalable targeting strategies Endpoint Analytics and digital experience monitoring (DEX) Hardware validation and lifecycle management, including: Hardware and performance testing/benchmarking to support fleet standardization decisions Firmware and BIOS update management and deployment (e.g., HP, Dell) Wi-Fi driver troubleshooting ...

while working on complex, business-critical systems. As a senior member of the team, you will be responsible for designing, implementing, and enhancing automated testing solutions across a range of applications, ensuring exceptional quality, reliability, and performance standards. Key Responsibilities Lead automation testing activities across functional, system … defects, bottlenecks, and areas for optimisation. Collaborate closely with developers, architects, and product teams to improve test coverage and software quality. Develop and execute performance testing strategies using tools such as JMeter and LoadRunner. Contribute to continuous improvement initiatives, including framework enhancement and process optimisation. Support recruitment activities ...

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 ...