Performance tester Work, Jobs in Windsor, Brk (with Salaries)

Senior Performance Tester
IT VALLEY (LONDON) LIMITED —Egham
- £40,000 - £52,000 a year
- Full-time
- Hybrid work
- Software troubleshooting
- Business development
- Scripting
Quick apply
Functional Tester
Code First Girls —London
- Full-time
- Remote
- Writing skills
- Communication skills
Quick apply
Senior Performance Tester (SC Eligible/ Cleared)
Scrumconnect Consulting —Staines-upon-Thames
- £50,000 a year
- Full-time
- Agile
Non-Functional Tester (Performance & Accessibility)
Cognizant —London
- Full-time
- Hybrid work
- Analytics
Quality Assurance Lead
Dreams —High Wycombe
- Full-time
- Hybrid work
- Leadership
- Communication skills
- SDLC
- Free parking
- Employee discount
5d
Senior Accessibility Tester
Atos —London
- Mentoring
- Communication skills
- Annual leave
Freelance Senior QA Tester (Mobile, Web & Kids Games)
Teach Your Monster —London
- Remote
- Agile
Quick apply
3d
Test Manager - Lead Consultant
Scale Factory —London
- Hybrid work
- Team management
- Agile
- Leadership
- Annual leave
HRIS Test Lead (12 month FTC)
Withersworldwide —London
- Full-time
- Hybrid work
- Communication skills
- Employee discount
Salesforce Test Manager
Sopra Steria —London
- £51,399 - £64,248 a year
- Hybrid work
- Salesforce
- Agile
- Leadership
- Annual leave
1d
Test Engineer (Java/.Net)
Solirius Reply —London
- £50,000 - £80,000 a year
- Full-time
- Hybrid work
- Analysis skills
- Communication skills
- Annual leave
- Employee assistance programme
Quick apply
10d
Software Developer in Test - C3
Scale Factory —London
- Hybrid work
- Communication skills
- Annual leave
Principal Automation Test Consultant
Scale Factory —London
- Hybrid work
- Team management
- AI
- Leadership
- Annual leave
Lead Software Developer In Test - Lead Consultant
Scale Factory —London
- Hybrid work
- Mentoring
- Training & development
- Leadership
- Annual leave
Senior Professional Tester, Actuarial Systems
Pacific Life Re Services Limited —London
- Microsoft Word
- Analysis skills
- Continuous improvement
- Annual leave
- Employee assistance programme
Quick apply

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Part-Time QA Tester – Mobile & Web Applications
Retronics Market Place Limited —London
This is a hands-on testing role suitable for someone who enjoys finding problems before customers do and can clearly explain what went wrong, how to reproduce…
£25,000 - £30,000 a year
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Functional Tester
Code First Girls —London
Innovation & Inclusive products: by building products with DE&I at the core, you will further harness additional techniques in the software development process…
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Senior Performance Tester

IT VALLEY (LONDON) LIMITED
Egham

Quick apply

Job details

Permanent | Full-time
£40,000 - £52,000 a year

Qualifications

Technical troubleshooting
Conduct risk analysis
Software troubleshooting
Mobile applications
Test automation
Selenium
Performance testing
Business development
CI/CD pipelines
Scripting
Scrum
Jenkins
Communication skills

Full job description

Job ID: ITV/JUNE2026/01

Number of positions: 01

IT Valley (London) Limited is looking for a motivated and enthusiastic Senior Performance Tester to join our growing team. The ideal candidate will be responsible for identifying new business opportunities, building client relationships, and supporting the company’s sales growth. This role requires good communication skills, confidence in dealing with customers, and the ability to achieve sales targets.

Duties and Responsibilities:

· Design and manage the overall performance testing strategy for web and mobile applications, ensuring alignment with business and technical objectives.

· Define measurable performance benchmarks, SLAs, and success criteria in collaboration.

· Conduct load, stress, endurance, and scalability testing to evaluate application behavior under normal and peak traffic conditions.

· Validate application responsiveness, stability, and reliability to ensure optimal end-user experience.

· Prepare and present performance test results, risk assessments, and release readiness reports to leadership and clients.

· Plan and coordinate performance testing activities across sprint cycles and release schedules.

· Work closely with developers, architects, and business analysts to integrate performance requirements early in the development lifecycle.

· Analyze system architecture, infrastructure limitations, and integration dependencies to identify performance risks and capacity issues.

· Investigate bottlenecks related to application code, APIs, databases, network latency, or infrastructure constraints.

· Provide technical leadership to testing teams by reviewing deliverables, setting standards, and driving process improvements.

Act as the primary escalation point for critical performance-related concerns and support release decisions.
Promote continuous improvement by enhancing testing frameworks, methodologies, and automation practices.

Skills & Experience

· Extensive hands-on experience in performance testing of large-scale enterprise applications.

· Strong knowledge of performance engineering concepts including load testing, capacity planning, stress testing, and bottleneck analysis.

· Experience with automation frameworks and testing tools such as Appium, Selenium, Cypress, Espresso, XCUITest, or similar platforms.

· Strong programming/scripting skills in Java, Python, JavaScript, or C# for test automation and framework development.

· Experience integrating automated testing into CI/CD pipelines using tools such as Jenkins, GitLab CI, Azure DevOps, or equivalent.

· Solid understanding of distributed application architecture, APIs, databases, and system integrations.

· Hands-on experience with APM and monitoring tools such as Dynatrace, AppDynamics, Datadog, or similar solutions.

· Strong experience working within Agile/Scrum environments.

· Excellent analytical, troubleshooting, and problem-solving skills.

· Proven ability to mentor junior testers or lead performance testing teams.

Pay: £40,000.00-£52,000.00 per year

Work Location: Hybrid remote in Egham TW20 8HE

Quick apply

Refine Your Search

performance tester jobs in windsor, brk

Senior Performance Tester

Functional Tester

Senior Performance Tester (SC Eligible/ Cleared)

Non-Functional Tester (Performance & Accessibility)

Quality Assurance Lead

Senior Accessibility Tester

Freelance Senior QA Tester (Mobile, Web & Kids Games)

Test Manager - Lead Consultant

HRIS Test Lead (12 month FTC)

Salesforce Test Manager

Test Engineer (Java/.Net)

Software Developer in Test - C3

Principal Automation Test Consultant

Lead Software Developer In Test - Lead Consultant

Senior Professional Tester, Actuarial Systems

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