1 to 25 of 57 Performance Testing Jobs in London

Performance Tester - CGEMJP

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 300 - 365 Daily
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 - CGEMJP00350528

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£300 - £365/day
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

Hiring Organisation
Brio Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 450 Daily
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

Hiring Organisation
Brio Digital
Location
London, Baker Street, United Kingdom
Employment Type
Contract
Contract Rate
£450/day
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 ...

Lead Performance Test Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
# Lead Performance Test Engineer Apply now## **About the job you're considering**We are seeking a Lead Performance Engineer to lead a team of performance engineers delivering assurance across complex client programmes. You will set the performance strategy, define and agree non-functional requirements … quality gates, and ensure systems are scalable, resilient and ready for production.Working with engineering, architecture, DevOps, SRE, cloud and business teams, you will embed performance engineering throughout the delivery lifecycle**Hybrid working**: The places that you work from day to day will vary according to your role, your needs ...

Quality Test Engineer

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£350/day £350 p/d Inside IR35
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 ...

automation qa

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
digital wealth management platform designed to help users grow, manage, and protect their long-term wealth across savings, investments, and pensions. Задачи: Own performance from day one by embedding performance thinking into delivery plans before code is written; Define thresholds, metrics, and SLOs that govern pass or fail … including budgets for latency, error rate, and throughput; Design and build performance tests for individual services, stubbing downstream and third‐party dependencies; Map load to real production traffic to identify performance bottlenecks; Integrate performance testing into CI/CD pipelines to catch regressions automatically; Build reusable ...

Staff Software Engineer – Continuity

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
party integrations, whilst partnering with colleagues in Architecture. Code Review: Conduct thorough code reviews to ensure adherence to technical standards, maintainability, automated testing and high-quality code. Foster a culture of continuous improvement. Collaboration: Gain a deep understanding of our area, working with key business stakeholders, product managers … scalability. Deep understanding of software engineering principles, patterns, and practices, applied to the development of maintainable and adaptable code. Good understanding of automated testing and performance testing practices and toolsets, and how they are best applied at unit, integration, and system levels, across both back ...

Performance Architect

Hiring Organisation
DCV Technologies
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£625 - £700/day - Inside IR35
Role/Job Titlke: Performance Architect Mode of working: Hybrid with 3-days onsite in London Duration: 12 Months (Likelihood of further extension Our client, working on behalf of the British postal service and courier company is urgently seeking a Performance Architect with extensive experience in Performance Architecture, Performance Engineering and System Optimization. The successful candidate will be responsible for defining and driving the performance strategy across the entire solution lifecycle, ensuring that applications and platforms are scalable, resilient, and capable of meeting business and operational demands. The role focuses on embedding performance ...

Principal Automation Test Consultant

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
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 ...

Quality Performance Test Engineer

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£310/day £310 p/d Inside IR35
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 ...

Senior/Staff Software Engineer, Developer Experience

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
standards. You’ll build the systems, frameworks, and culture that allow the rest of engineering to own quality themselves; improving and extending our testing platform by creating the infrastructure that allows engineers to write and execute tests, and enable every engineering team to ship with more confidence. Key Responsibilities … Design and implement automation pipelines that support comprehensive testing across multiple environments with varying feature flags and realistic customer data profiles Create intelligent testing agents that simulate real user behavior to validate different configuration combinations Develop and maintain GitHub workflows and actions to automate testing, deployment ...

QA Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
development lifecycle. You'll take ownership of quality strategy across our Point of Sale and Kitchen Management products, combining hands‐on hardware validation, modern testing practices and release governance to ensure exceptional customer and restaurant experiences. Living the Nando's Values Pride – Take ownership of your work, hold yourself … hands‐on senior role focused on quality engineering rather than simply writing automated tests. You'll own test planning, release validation, hardware testing, production quality and continuous improvement across multiple products. You'll work closely with Software Engineers, Product Managers and Technical Leads to ensure quality is built into ...

Automation Solutions Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
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 ...

AI Test Engineer (SC Cleared)

Hiring Organisation
Adecco
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £650/day
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 ...

AI Test Engineer (SC Cleared)

Hiring Organisation
Adecco
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £650 per day
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 ...

Test Lead

Hiring Organisation
Appcast
Location
London, UK
embedded within our DNA. Invest in us and we’ll invest in you!Job DescriptionWe are seeking a highly skilled and experienced Automation and Performance Test Engineer to lead strategic testing initiatives across complex systems. This role demands a blend of technical expertise, leadership capability, and problem-solving … acumen to drive quality across our engineering processes. You will be responsible for designing, building, and maintaining robust automation and performance testing frameworks using open-source tools, while also mentoring and guiding other engineers.Key Responsibilities: Strategic Leadership: Plan and lead large-scale, complex testing activities, managing risks ...

Lead C++ / Java Developer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
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 ...

Test Manager - EPOS

Hiring Organisation
Proactive Appointments
Location
Croydon, Surrey, England, United Kingdom
Employment Type
Contractor
Contract Rate
£350 - £380 per day
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 ...

Test Manager

Hiring Organisation
Proactive Appointments
Location
Croydon, Surrey, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £55,000 per annum
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 ...

Network Test Engineer (SC Cleared)

Hiring Organisation
LSA Recruit
Location
City of London, London, United Kingdom
opportunity for Test Engineer -Testing Services based in Multiple locations in UK Locations: London Speechmark/Newbury/Birmingham Small Heath/Manchester/Glasgow Skills Required: Create test scripts from Test Plans, High-Level Designs (HLD) and Low-Level Designs (LLD) for network infrastructure — routers, switches and firewalls. … translate them into executable test scenarios. Use network and service management toolsets (e.g. StableNet) to validate service behaviour. Support test environment preparation, smoke testing and readiness checks ahead of formal execution windows. Attend client hub locations and customer sites as required by project scope; support the wider Test team ...

Principal Apps Integration CI/CD & Automation Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
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/ ...

Test Engineer (Telecom)

Hiring Organisation
LSA Recruit
Location
Greater London, England, United Kingdom
Small Heath/Manchester/Glasgow — hybrid, with customer site visits Clearance: SC-cleared Duration: 6 Months to start with TECHNICAL SCOPE & DOMAIN COVERAGE Testing services are delivered across the full VBTS UK product and service estate: Hosting; LAN & WiFi; Data Centre; Service Transition; SD-WAN; Telephony; UC & Unity … Cloud; IoT; Fixed Connectivity; Mobility; Cloud & Security. Test phases in scope: Unit Testing, System Integration Testing (SIT), Functional Testing, Non-Functional Testing, Disaster Recovery Testing and Operational Acceptance Testing (OAT). Hands-on network infrastructure testing: routers, switches, firewalls — including Cisco switch/ ...

Principal Machine Learning Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
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 ...

Senior Software Developer in Test - Senior Consultant

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
grow. As a Senior Software Developer in Test , you’ll: 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. … 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 ...