1 to 25 of 97 Performance Testing Jobs in London

Performance Tester - (Must hold Security Clearance)

Hiring Organisation
Solirius Consulting
Location
London, UK
Employment Type
Full-time
effective outcomes. You understand and align with Solirius Reply ValuesThe Role: We are looking for experienced Non Functional Test Engineers with demonstrable experience in Performance Testing and Non Functional Testing to join us on a permanent basis and assist with the running of our performance testing projects. You will be involved in overall NFT as well as API testing, Front End testing and UI based performance testing on behalf of both our public and private sector clients. Those not from a performance testing background, or without demonstrable experience ...

Lead Performance Test Engineer ( SC Eligible/ SC Cleared )

Location
Greater London, England, United Kingdom
Lead Performance Test Engineer ( SC Eligible/SC Cleared ) London, United Kingdom | Posted on 01/09/2026 Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million … commitment to user-centred design and agile delivery, and more to deliver innovative digital services that matter. Role Overview We are seeking a Lead Performance Tester/Performance Engineering Lead to provide end-to-end ownership of performance testing and performance assurance across complex digital ...

Lead Performance Tester (SC Eligible/Cleared)

Location
Greater London, England, United Kingdom
commitment to user-centred design and agile delivery, and more to deliver innovative digital services that matter. Role Overview We are seeking a Lead Performance Tester/Performance Engineering Lead to provide end-to-end ownership of performance testing and performance assurance across complex digital … services. This role acts as the performance authority , accountable for defining strategy, leading delivery, and providing formal recommendations on production readiness. Key Responsibilities Own the performance testing strategy for assigned services or programmes Lead volumetric analysis, performance risk assessment, and test scoping Define entry/exit ...

Performance Test Engineer

Location
Greater London, England, United Kingdom
Date: 24 Sept 2026 Company: QualityAI Country/Region: GB Performance Test Engineer Location: London or Leeds, UK (Hybrid) Type: Permanent Salary Band : Grade B2 Role Overview We are looking for a Performance Test Engineer to drive performance assurance across cloud, hybrid, and on-premise environments. … will design and execute performance, load, stress, and volume tests, identify bottlenecks, and work closely with development and architecture teams to ensure scalable, resilient, and high-performing applications. Key Responsibilities Design and execute performance testing strategies and test plans. Perform load, stress, endurance, and volume testing. Analyze ...

Tester

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Permanent
Salary
£41000/annum
with both our clients and our own employees. We are passionate about training, technology and career development. Key Responsibilities Design, develop, execute, and maintain performance test plans and test scenarios. Collaborate with Business Analysts and client teams to understand functional and non-functional requirements. Analyse application performance and identify bottlenecks, capacity issues, and areas for optimisation. Develop automated performance test scripts and frameworks. Execute load, stress, endurance, and scalability testing activities. Produce detailed performance test reports and provide recommendations for improvement. Support defect investigation and resolution activities alongside development teams. Contribute to test ...

Senior Network Test Engineer

Location
Greater London, England, United Kingdom
Overview Inabia is seeking a Senior Network Test Engineer based in the United Kingdom to lead end-to-end network verification, performance testing, troubleshooting, and validation across cellular, WiFi, broadband, IP networking, and cloud-connected environments. This role requires a hands-on engineer with deep expertise … networking, AWS cloud connectivity, DevOps practices, and test automation. The successful candidate will configure and manage test environments, execute functional and performance testing, analyze network traffic and logs, identify root causes, and produce comprehensive test and verification reports. Responsibilities Plan and execute network verification and validation testing ...

Senior Performance Tester - SC Eligible/cleared

Hiring Organisation
scrumconnect ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 45,000 - 50,000 Annual
user-centred design and agile delivery, and more to deliver innovative digital services that matter. Role Overview We are looking for a Senior Performance Tester to deliver hands-on load and performance testing across large-scale digital services and Back End applications, with experience of working with … cloud-based distributed services. This is a technical, delivery-focused role operating in structured and governed environments where performance, resilience, and scalability are critical to service success. Key Responsibilities Design and execute load, stress, volume, soak, and scalability tests Analyse performance results, logs, and system metrics to identify ...

Performance Tester

Hiring Organisation
fortice
Location
London, UK
Employment Type
Full-time
Title – Performance TesterLocation – LondonWho you'll be working withIn Business Technology Solutions (BTS) we specialise in navigating our clients through the complexities of large-scale, technology-driven transformation programmes, using our skills to drive outstanding delivery. Having the right people using the right methodology and following the right process … gives every client the right result. Managed Testing Services (MTS) is a new Delivery Unit within Business Technology Solutions focusing on helping our client's achieve business value through testing transformation. The MTS function is responsible for all aspects of managed testing services focusing on: moving ...

Salesforce Senior Test Manager

Hiring Organisation
Sopra Steria
Location
London, UK
Employment Type
Full-time
16020Company: Sopra SteriaLocation: London, GBREmployment type: PermanentCategory: Software, Testing and ArchitectureIndustry: Professional ServicesLevel: Level 4Posted: 2026-09-23 Are you passionate about delivering high-quality Salesforce solutions that make a real business impact? Do you enjoy leading testing strategy across complex transformation programmes while driving automation, quality … role in ensuring the quality, stability, and successful delivery of our Salesforce platforms and integrated business applications. This is an exciting opportunity to lead testing across large-scale Salesforce programmes, working alongside talented product owners, architects, developers, and business stakeholders to deliver solutions that provide exceptional value. ...

QA Automation Engineer

Location
Greater London, England, United Kingdom
responsible for ensuring business-critical applications and platforms are delivered and maintained to the highest standards of quality. This role will take ownership of testing strategy, quality assurance governance, supplier testing oversight, and user acceptance testing activities across a range of enterprise applications. You will work closely … purpose before they are released into production. This is an excellent opportunity for a QA professional who enjoys combining hands-on testing expertise with governance, stakeholder management, and quality leadership. Key Responsibilities Develop, maintain, and execute comprehensive test strategies and test plans for new solutions, enhancements, upgrades, and projects. ...

Lead QA Automation Engineer

Hiring Organisation
GCS
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 450 - 525 Daily
Working (Minimum 2 days per week in office) The Opportunity We are seeking an experienced Lead Engineer - QA Automation to drive quality assurance and testing excellence across a portfolio of internally developed and supplier-delivered applications. This is a leadership role responsible for defining QA strategy, establishing testing standards, governing quality outcomes, and championing automation across the software delivery lifecycle. You will act as the technical authority for testing, ensuring solutions meet functional, security, regulatory, and business requirements while supporting the adoption of modern engineering and DevOps practices. Key Responsibilities Define ...

Senior Test Engineer

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £473/day
submission tool for external users, and a centralised datastore for all MEL data to support 20-30 years of programme delivery. Key skills Automated testing frameworks (Playwright/Jest) Data validation testing Load & performance testing for bulk uploads CI/CD pipeline testing SFIA Level … Provide authoritative advice on test scope, entry/exit criteria, and quality risks to delivery and product leadership. Balance pragmatism with assurance, ensuring proportionate testing within agile delivery constraints. Lead the design and evolution of automated test frameworks (UI, API, or service-level), aligned to the team's technology ...

Senior Non-Functional Test Engineer (SC)

Hiring Organisation
Sanderson Recruitment
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
Up to £458.24 per day + Inside IR-35
Engineer to take ownership of the NFT strategy, tooling, and delivery across a complex digital estate. This is a hands-on role focused on performance, accessibility, security, resilience, and interoperability testing, working closely with delivery teams, specialists, and suppliers to ensure confidence in releases and service quality. … Responsibilities Evaluate and recommend testing tools, frameworks, and practices across the DEFRA testing community. Plan, build and execute non-functional testing activities. Deliver testing across performance, accessibility, security, resilience and interoperability requirements. Interpret test results and communicate business and user impact to stakeholders. Ensure sufficient ...

Principal Automation Test Consultant

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 Engineer - SC MOD

Location
City Of London, England, United Kingdom
improving the delivery pipeline, we’d love to hear from you. Key Responsibilities Design, develop, and maintain automated test suites for functional, regression, integration, performance, and API testing. Build automation frameworks using industry‐standard tools and modern programming languages. Develop optimized test scenarios and ensure comprehensive test coverage aligned … troubleshoot failures, and provide actionable insights to development teams. Collaborate with cross‐functional teams to improve product quality, identify risks, and advocate for automated testing best practices. Participate in requirement analysis, sprint planning, and backlog grooming to ensure quality is built in from the start. Drive adoption of automation ...

Senior Field Application Engineer

Hiring Organisation
Advanced Micro Devices
Location
Central London, London, United Kingdom
Employment Type
Permanent, Work From Home
remit of your accounts: qualification, stakeholders, understand timelines, coordinate within internal stakeholders and external partners Test new AMD products prior to launch and characterise performance In addition to being customer and partner-facing this is a hands-on role working both independently and with other AMD engineers. There … strong emphasis on performing Proof of Concepts, tackling technical software and hardware HPC performance, debug, and capability issues, collaborating with Field Application Engineering FAE peers, Sales colleagues, CPU and GPU Business Units, Architecture, Software, Platform teams. THE PERSON: Does this sound familiar? We'd love to talk! Clear track ...

Selenium QA Tester C# Fintech- Edinburgh

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
tools and techniques that can improve quality across the organisation. QA Testers MUST have:2:1 Computing Science degree from an EU UniversitySelenium WebDriverSpecFlowCypressxUnitNUnitReact Testing LibraryT-SQLTHave demonstratable experience and knowledge of a wide range of testing tools and techniques to cover things such as, Functional testing, Performance testing, Load testingHave a passion for delivering quality software and understand what it means to "Build Quality In"Want to educate other members of the Engineering team on better quality practicesKeep up to date with current trends by following the Ministry of Testing, Modern Testing ...

Lead Performance Engineer - Large-Scale Systems - Flexible

Location
Greater London, England, United Kingdom
Scrumconnect Consulting is seeking a Lead Performance Tester/Performance Engineering Lead to own performance testing strategy across complex digital services. You will act as the performance authority, defining strategy, leading delivery, and advising on production readiness. We expect extensive experience in performance testing ...

Senior Mobile Engineering Manager

Hiring Organisation
Innova Solutions
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£48 - £58/hour
Demonstrated ability to prioritize effectively and manage multiple competing priorities within fast-paced environments. Hands-on experience with software quality practices, including automated functional testing, integration testing, performance testing, and technical documentation. Strong experience leading customer-facing digital platform initiatives throughout the complete software delivery lifecycle. … Microservices architecture RESTful APIs Event-driven architectures Secure software development practices Scalable distributed systems Deep experience implementing observability strategies, including: Logging, monitoring, alerting, Performance Analysis and Production Diagnostics. Experience with industry-standard observability and monitoring platforms such as Sentry or Datadog, New Relic, Grafana or OpenTelemetry. Strong knowledge ...

SC Cleared - Test Automation Specialist

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
Demonstrated experience of Automated Quality Assurance: Deliver overnight cross-browser, functional, non-functional, API, integration and acceptance tests Delivered front end cross-browser functional testing, device testing, exploratory, systems integration and user acceptance testing e.g. manual testing Confident with building and maintaining frameworks … more of these languages: Java, JavaScript, Python, or C# Must have extensive experience with Playwright Worked in an agile environment Any performance testing experience or other non-functional testing experience would be beneficial Additional Information Why our client? We believe in providing our employees with a comprehensive ...

Performance Engineering Lead - Scale & Production Readiness

Location
Greater London, England, United Kingdom
Scrumconnect Consulting in London, United Kingdom, is seeking a Lead Performance Test Engineer to own end-to-end performance testing and assurance across complex digital services. The role acts as the performance authority, defining strategy, leading delivery, and providing formal recommendations on production readiness. You will … lead performance testing for large-scale systems, drive CI/CD integration, and mentor teams, with emphasis on governance, observability, and risk management in #J-18808-Ljbffr ...

Sr Backend Engineer

Location
City Of London, England, United Kingdom
Build and support cloud-native applications in multi-cloud environments Develop robust RESTful APIs and implement asynchronous processing solutions Ensure operational excellence through comprehensive testing strategies (unit, component, integration, end-to-end, and performance testing) and production support Participate in incident management and system reliability initiatives Collaborate … experience developing RESTful APIs, messaging frameworks, and asynchronous processing Strong production support experience, including incident management and CI/CD pipelines/automation Comprehensive testing capability across unit, component, integration, end-to-end, and performance testing Desirable Requirements: Proficiency in Kotlin in addition to Java Experience ...

Senior Automation Tester

Location
Greater London, England, United Kingdom
Automation TesterLocation: London, UKJob type: Contract- Hybrid 2 days onsiteDay Rate - 250 GBP/Day**Key Skills :**Java Selenium/playwright, Rest Assured, API Testing) , CICD Pipeline ( Gitlab, Jenkins), SQL, Leadership Skills### ### OverviewWe are seeking an experienced professional to join our team in a pivotal role focused … automation testing. The ideal candidate will have a strong background in software testing with an emphasis on automation, ensuring the delivery of high-quality software solutions.### Key Responsibilities* Design and implement automated test scripts to ensure efficient and thorough testing of applications.* Collaborate with cross-functional teams ...

QA/Test Engineer

Hiring Organisation
Version 1
Location
London, UK
Employment Type
Full-time
test estimatesQualificationsDemonstrated experience of Automated Quality Assurance: Deliver overnight cross-browser, functional, non-functional, API, integration and acceptance testsDelivered front end cross-browser functional testing, device testing, exploratory, systems integration and user acceptance testing e.g. manual testingConfident with building and maintaining frameworks in JavaHave practical experience with … years with no more than 30 days per year out of the UK to meet Security Clearance (SC) eligibility or currently hold Security ClearanceAny performance testing experience or other non-functional testing experience would be beneficial Additional InformationWhy Version 1? At Version 1, we believe in providing ...

Senior Manager of Software Engineering -FI Electronic Trading Real-Time Position & Risk TechLead

Location
Greater London, England, United Kingdom
booking. This role offers the opportunity to set technical direction, raise engineering standards, and grow a high-performing team. If you thrive in performance-critical systems and enjoy solving complex market and risk problems, this role is built for you. As a Sr Manager of Software Engineer at JPMorgan … that delivers safely at high velocity. Job Responsibilities Lead the design and evolution of the real-time position and risk platform, including architecture, patterns, performance, and resilience Deliver real-time position keeping capabilities across trade lifecycle events, including amendments, cancels, allocations, and booking states Build and enhance real-time ...