1 to 25 of 26 Performance Testing Jobs in London

Performance Tester

Hiring Organisation
Arrows
Location
London, UK
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 ...

Principal Automation Test Consultant

Hiring Organisation
Scale Factory
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
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 ...

Head of Quality Engineering

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
lead our enterprise quality strategy across Product and Technology. This is a high‐impact leadership role where you will set the direction for testing, automation, performance, security and AI‐driven quality engineering, helping us deliver faster, safer and more reliable technology for our customers and colleagues. Why join … purpose‐led, people‐first culture where inclusion, learning and development are genuinely prioritised Opportunities to shape modern engineering practices across automation, AI, security and performance testing Career and skills development in a business recognised for colleague growth and workplace culture Employee resource groups and colleague‐led initiatives that ...

Quality Assurance Engineer

Hiring Organisation
GoodFit.io
Location
London, UK
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 ...

SC Cleared Tester

Hiring Organisation
Opus Recruitment Solutions
Location
Remote work, City of London, United Kingdom
Employment Type
Contract
Contract Rate
£425/day
searching for two Quality Assurance Testers (Informatica) to support a large-scale public sector data programme. The role will involve delivering high-quality testing across data platforms, with a focus on Informatica solutions within cloud environments. Key Responsibilities & Deliverables: Execute end-to-end testing across data projects, ensuring … quality and accuracy of Informatica solutions. Analyse non-functional requirements, including technical architecture and deployment documentation. Define and develop performance testing strategies and scenarios. Prepare and execute performance test scripts using appropriate tools. Monitor application and database performance within web-based systems. Analyse test results, raise ...

Graduate Software Developer Programme

Hiring Organisation
Mortgage Brain
Location
London, United Kingdom
Employment Type
Permanent
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 ...

Senior NFT Consultant

Hiring Organisation
Capgemini
Location
Greater London, United Kingdom
Employment Type
Full Time
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 ...

Senior 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 ...

Senior 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 ...

Infrastructure Tester

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£45000 - £50000/annum
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 ...

Quality Test Engineer III

Hiring Organisation
Elsevier
Location
Greater London, United Kingdom
Employment Type
Full Time
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 ...

Tester - Infrastructure, Manual & Automation

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
London, United Kingdom
Employment Type
Permanent
Salary
£45000 - £50000/annum Bonus, Pension, etc
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 ...

Tester

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£275 - £300/day
seeking an experienced Tester to join a fast-paced technology team on an initial 3-month contract. This is a broad, hands-on testing role that extends well beyond traditional software testing. You will be responsible for validating infrastructure, environments, deployments, integrations and enterprise applications, ensuring robust, secure … reliable solutions are delivered across a diverse technology landscape. Working closely with Development, DevOps and Project teams, you will plan, execute and continually improve testing activities across cloud, on-premise and enterprise environments. Key Responsibilities Design, execute and maintain manual test plans across infrastructure, backend services and application layers. ...

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 ...

Lead Software Developer In Test - Lead Consultant

Hiring Organisation
Scale Factory
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
robust, scalable automation solutions across multiple projects and clients Mentor and coach a team of SDETs, fostering growth, upskilling, and driving best practices in testing and automation Own the QA strategy on projects - setting the vision for test architecture, tooling, quality metrics, and delivery excellence Engage directly with clients … trusted advisor, understanding business needs and aligning our testing approach accordingly Contribute to pre-sales and project scoping, helping shape engagements from inception through delivery What Were Looking For We understand leadership takes many forms. If you're driven to inspire others, lead innovation, and take ownership of delivery ...

QA Test Lead (CCH Tagetik)

Hiring Organisation
Global Technology Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £500 per day
Description – QA Test Lead (CCH Tagetik) Location: Outside London Contract : Inside IR35 Salary: Negotiable Key Responsibilities Test Planning & Strategy Develop and manage the overall testing strategy, test plans, and quality assurance approach for Tagetik implementations, upgrades, and enhancements, including SIT, UAT, regression, and patch testing. Assess functional and technical … negative test scenarios. Record, monitor, and manage defects through to resolution, working closely with development and project teams to ensure timely fixes. User Acceptance Testing (UAT) Coordinate and support UAT activities, including walkthrough sessions, defect review meetings, and obtaining business approvals. Produce UAT progress reports, testing metrics ...

Head of Financial Engineering and Rapid Development

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
signals) in C# and Python, with a strong focus on production quality. Drive implementation of the DST target architecture, making key decisions on integration, performance, scalability and real‐time capability. Lead the application of AI/ML and predictive analytics for investment use‐cases, embedding appropriate controls for safe … with adjacent teams (platform delivery/support, analytics oversight, governance reporting) to take solutions from prototype to production at pace. Continuously improve engineering outcomes (performance, testing, stability, technical debt) and ensure delivery aligns to agreed standards and controls. To be successful in this role you should meet ...

Data Science Lead - AML Risk

Hiring Organisation
Wise
Location
Greater London, United Kingdom
Employment Type
Full Time
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 ...

Workday Test Lead

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£700 - £800/day
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 ...

Workday Test Lead

Hiring Organisation
Randstad Technologies
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£700 - £800 per day
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 ...

Senior Rates Developer - Java

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
eCommerce channels Integration of new quantitative models and external market data feeds This is a hands‐on engineering role within a fast‐paced, high‐performance trading technology environment. Key Responsibilities Work directly with eRisk quants and Rates/FX traders to gather requirements and refine technical solutions. Contribute … Produce detailed technical designs aligned to solution architecture. Implement high‐quality Java server‐side components, applying industry‐standard development patterns. Build simulation and back‐testing environments; investigate regression issues where required. Conduct automated unit, integration, and performance testing prior to UAT. Deploy components into development, test ...

Tester

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Permanent
Salary
£40000 - £47000/annum
role is to join a government orgs highest profile customs transformation project as part of an experienced delivery team to support and enhance testing of the UK's central Customs application. As a test specialist, you will work alongside our business analysts to understand client requirements and define … execute test scenarios. Essential Skills: Performance Testing Cucumber Java JIRA Confluence Desirable Skills: JMeter AWS Tooling UK Location & Post Code: Project expect resources to be in office a minimum of 3 days a week (for the 1st month it is expected they will be in 5 days, dependent ...

Dev In Test - Leading Hedge Fund - up to £170k + Bonus

Hiring Organisation
Saragossa
Location
London Area, United Kingdom
across a complex, business-critical environment. You’ll build solutions from the ground up, enhance CI/CD pipelines, run large-scale validation and performance testing, and help shape the future of AI-driven testing. The environment is heavily Kubernetes-based, spanning Azure, Windows, and Linux platforms. However … looking for engineers who build test frameworks rather than simply use them people who enjoy solving complex problems, taking ownership, and operating in high-performance environments where quality truly matters. This is a fully office-based role, working alongside people who take pride in what they build. The firm ...

Site Reliability Engineer AWS, Terraform, Automation

Hiring Organisation
Smart Sourcer Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
critical services Partnering with DevOps + engineering teams to improve release stability Driving DR/BCP improvements and reliability initiatives Conducting capacity planning and performance testing Required Skills: 5+ years in DevOps/SRE Strong AWS experience (Azure a bonus) Scripting: Bash, PowerShell, Python, CDK IaC expertise: Terraform ...

Tester - Infrastructure, Manual & Automation

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
London, United Kingdom
Employment Type
Permanent
Salary
£45000 - £50000/annum Bonus, Pension, etc
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 Our client is a growing technology consultancy delivering secure, reliable and innovative solutions for a diverse client … experienced Tester to join our team. This is a varied role that goes beyond traditional software testing. You'll be responsible for testing applications, infrastructure, integrations and deployments, working closely with Developers, DevOps Engineers and Project Teams to ensure high-quality delivery across enterprise environments. Key Responsibilities Create ...