Performance tester Work, Jobs in London, Eng (with Salaries)

Non-Functional Tester (Performance & Accessibility)
Cognizant —London
- Full-time
- Hybrid work
- Azure
- AWS
- APIs
Software Tester
Ganap IT Limited —Hounslow
- £35,000 a year
- Full-time
- Computer Science
- Analysis skills
- Organisational skills
Quick apply
12d
Senior Automation Tester
DLA Piper —London
- Mentoring
- Scripting
- APIs
Senior Performance Tester
IT VALLEY (LONDON) LIMITED —Egham
- £40,000 - £52,000 a year
- Full-time
- Azure
- Sales
- Java
Quick apply
12d
Senior Accessibility Tester
Atos —London
- JavaScript
- Communication skills
- HTML
- Annual leave
1d
Senior QA Tester (SC Cleared)
Scrumconnect Consulting —Staines-upon-Thames
- £300 - £350 a day
- Travel
- Scripting
- Agile
Alpha Implementation Functional Test Lead, Officer
State Street —London
- Full-time
- Analysis skills
- Project management
- Bachelor's degree
TEST MANAGER - LEAD CONSULTANT
Scale Factory —London
- Hybrid work
- Driving
- Mentoring
- Agile
- Annual leave
11d
Senior Consultant, Salesforce Testing
Kate Matthews Solutions —London
- £40,000 - £60,000 a year
- Salesforce
- Agile
Alpha Front Office Test Lead, Assistant Vice President
State Street —London
- Full-time
- Analysis skills
- Project management
- Bachelor's degree
Professional Tester, Actuarial Systems
Pacific Life Re Services Limited —London
- Microsoft Word
- Microsoft Excel
- Analysis skills
- Annual leave
- Employee assistance programme
Quick apply
Test Automation Engineer
Scrumconnect Consulting —London
- £40,000 - £50,000 a year
- Azure
- Java
- SQL
14d
Digital Test Manager
Formula 1 —Biggin Hill
- Full-time
- Presentation skills
- No degree
- IT
- Store discount
- Annual leave
Alpha Implementation Test Lead, Vice President
State Street —London
- Full-time
- Analysis skills
- Bachelor's degree
- Accounting
Senior Professional Tester, Actuarial Systems
Pacific Life Re Services Limited —London
- Microsoft Word
- Microsoft Excel
- Management
- Annual leave
- Employee assistance programme
Quick apply
HRIS Test Lead (12 month FTC)
Withersworldwide —London
- Full-time
- Hybrid work
- Azure
- Oracle
- Human resources
- Employee discount
12d
Senior Test Analyst - Brno
Deltatre —London
- Azure
- Management
- DevOps
- Annual leave
Quick apply
8d
Programme Test Manager - Principal Consultant
Scale Factory —London
- Hybrid work
- DevOps
- JavaScript
- AI
- Annual leave
Lead Software Developer In Test - Lead Consultant
Scale Factory —London
- Hybrid work
- Azure
- Java
- JavaScript
- Annual leave
Principal Automation Test Consultant
Scale Factory —London
- Hybrid work
- Azure
- Java
- AWS
- Annual leave

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Non-Functional Tester (Performance & Accessibility)

Cognizant -
London

Apply Now

Job details

Full-time

Qualifications

Azure
Performance testing
AWS
WCAG
APIs
Apache
Jenkins
GitLab

Full job description

The Non-Functional Tester is responsible for validating the performance, scalability, reliability, and accessibility of enterprise applications. The role designs and executes non-functional test strategies, analyses results, and partners with engineering and business stakeholders to ensure systems meet defined non-functional requirements (NFRs).
Candidates should be SC Eligible (5 Years in UK )
Key Responsibilities

Understand Non-Functional Requirements (NFRs) and scope from client documentation.

Develop and maintain non-functional test strategies and plans aligned with business and technical objectives.

Design and execute performance tests using tools such as JMeter, Azure Load test to evaluate system scalability and reliability, reporting using Blaze meter

Perform accessibility testing using Wave, Axe to ensure compliance with WCAG and other accessibility guidelines.

Analyse test results to identify trends, patterns, and areas for improvement in system performance.

Prepare detailed test reports, including metrics such as response times, throughput, and defect summaries.

Collaborate with developers, architects, and business analysts to resolve non-functional issues and optimize system performance.

Conduct load, stress, soak, and spike testing to validate system behaviour under varying conditions.

Integrate non-functional tests into CI/CD pipelines to enable continuous performance validation.

Define non-functional acceptance criteria and service-level objectives (SLOs) in collaboration with stakeholders.
Required Skills

Should have experience in non-functional / performance testing of enterprise web and API-based applications.

Hands-on expertise with performance testing tools such as Apache JMeter and Azure Load Testing, with result analysis and reporting in BlazeMeter.

Experience with accessibility testing tools such as WAVE and Axe, and a working knowledge of WCAG 2.1/2.2 compliance standards.

Strong understanding of non-functional requirements including performance, scalability, reliability, availability, and security.

Ability to analyse performance metrics (response time, throughput, latency, resource utilisation) and identify bottlenecks.

Familiarity with APM and monitoring tools (e.g., Dynatrace, AppDynamics, Grafana) for system observability.

Experience integrating performance tests into CI/CD pipelines (e.g., Azure DevOps, Jenkins, GitLab).

Working knowledge of cloud platforms (Azure / AWS) and containerised environments.

Apply Now

Refine Your Search

performance tester jobs in london, eng

Non-Functional Tester (Performance & Accessibility)

Software Tester

Senior Automation Tester

Senior Performance Tester

Senior Accessibility Tester

Senior QA Tester (SC Cleared)

Alpha Implementation Functional Test Lead, Officer

TEST MANAGER - LEAD CONSULTANT

Senior Consultant, Salesforce Testing

Alpha Front Office Test Lead, Assistant Vice President

Professional Tester, Actuarial Systems

Test Automation Engineer

Digital Test Manager

Alpha Implementation Test Lead, Vice President

Senior Professional Tester, Actuarial Systems

HRIS Test Lead (12 month FTC)

Senior Test Analyst - Brno

Programme Test Manager - Principal Consultant

Lead Software Developer In Test - Lead Consultant

Principal Automation Test Consultant

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