Functional tester Work, Jobs in London (with Salaries)

Non Functional Tester
Cognizant —London
- Full-time
- Hybrid work
- Azure
- AWS
- APIs
14d
Non-Functional Tester (Performance & Accessibility)
Cognizant —London
- Full-time
- Hybrid work
- Azure
- AWS
- APIs
10d
Alpha Implementation Functional Test Lead, Officer
State Street —London
- Full-time
- Analysis skills
- Project management
- Bachelor's degree
QA Automation Tester
Scrumconnect Consulting —Croydon
- £65,000 a year
- Oracle
- DevOps
- SQL
1d
Senior QA Tester (SC Cleared)
Scrumconnect Consulting —Staines-upon-Thames
- £300 - £350 a day
- Travel
- Scripting
- Agile
Quality & Test Manager
Capgemini —London
- Hybrid work
- Salesforce
- AWS
- Agile
9d
Tagetik
Middlewaretalents Ltd —London
- £400 - £500 an hour
- Hybrid work
- SQL
- Continuous improvement
- Agile
Quick apply
QA Tester ( IAM Experience)
FalconSmartIT —London
- Java
Quick apply
Alpha Front Office Test Lead, Assistant Vice President
State Street —London
- Full-time
- Analysis skills
- Project management
- Bachelor's degree
Automation Tester (C#/JavaScript & Playwright)
Cognizant —London
- Full-time
- Hybrid work
- Azure
- JavaScript
- APIs
14d
ServiceNow Tester
FalconSmartIT —London
- JavaScript
- Scripting
- Communication skills
Quick apply
Quality Engineer (Contract)
Roq —London
- Full-time
- Hybrid work
- Agile
Quick apply
Senior Automation Tester
DLA Piper —London
- Mentoring
- Scripting
- APIs
8d
SAP Ariba Tester
FalconSmartIT —London
- Full-time
- Communication skills
Quick apply
QA SDET (Python)
NTT Ltd —London
- APIs
- Communication skills
- Python
Automation Tester (C#/Javascript & Playwright & MS Dynamics)
Cognizant —London
- Full-time
- Hybrid work
- Azure
- JavaScript
- Agile
14d
Sr. Quality Assurance Engineer w/Detox Testing Experience
Concentrix —London
- Full-time
- JavaScript
- APIs
- Agile
Programme Test Manager - Principal Consultant
Scale Factory —London
- Hybrid work
- DevOps
- JavaScript
- AI
- Annual leave
6d
Polaris Product Writer
FalconSmartIT —London
Quick apply
Senior QA Engineer - fixed-term contract (maternity cover)
MPS Limited —London
- Hybrid work
- Microsoft Excel
- Computer Science
- Microsoft Office
- Annual leave
9d

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Non Functional Tester

Cognizant -
London

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Job details

Full-time
14 days ago

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).
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.

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Refine Your Search

functional tester jobs in london

Non Functional Tester

Non-Functional Tester (Performance & Accessibility)

Alpha Implementation Functional Test Lead, Officer

QA Automation Tester

Senior QA Tester (SC Cleared)

Quality & Test Manager

Tagetik

QA Tester ( IAM Experience)

Alpha Front Office Test Lead, Assistant Vice President

Automation Tester (C#/JavaScript & Playwright)

ServiceNow Tester

Quality Engineer (Contract)

Senior Automation Tester

SAP Ariba Tester

QA SDET (Python)

Automation Tester (C#/Javascript & Playwright & MS Dynamics)

Sr. Quality Assurance Engineer w/Detox Testing Experience

Programme Test Manager - Principal Consultant

Polaris Product Writer

Senior QA Engineer - fixed-term contract (maternity cover)

I want to receive the latest job alerts for functional tester in london

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