Need to launch your software without embarrassing bugs? I am a Certified QA Engineer specializing in end-to-end manual and automation testing for web, mobile, and desktop apps. With 2+ years of experience, I ensure your product is flawless, secure, and ready for your users.
I’m skilled in both manual and exploratory testing and have a strong understanding of the Software Development Life Cycle (SDLC) and Software Testing Life Cycle (STLC).
My goal is to help teams launch reliable, user-friendly products through detailed test planning, execution, and reporting.
Additional Skills:
▪️ Test documentation & reporting
▪️ Cross-browser & cross-platform testing
▪️ API & UI testing (utilising tools such as Postman & Jira)
▪️ Regression, Smoke, and UAT Testing
💡 I also bring complementary skills in digital advertising, data entry, and content creation, making me adaptable to cross-functional projects.
Let’s collaborate to deliver a smooth, bug-free experience for your users 🚀
Functional Testing
QA Automation
QA Testing
Regression Testing
Test Execution
Mobile App Testing
Manual Testing
Bug Tracking & Reports
Secure SDLC
Tammarie D.
London, United Kingdom
$20/hr
5.0
14 jobs
I help startups and businesses launch bug-free web and mobile applications through thorough manual QA testing, usability testing, API testing, and detailed bug reporting.
I am a Certified QA Engineer specializing in end-to-end manual and automation testing for web, mobile, and desktop applications. With 2+ years of experience, I help ensure your product is reliable, secure, and ready for your users.
I’m skilled in both manual and exploratory testing and have a strong understanding of the Software Development Life Cycle (SDLC) and Software Testing Life Cycle (STLC).
Throughout my projects, I have:
▪️ Conducted manual, exploratory, regression, smoke, and user acceptance (UAT) testing
▪️ Identified functional, usability, and compatibility issues before product release
▪️ Created clear, detailed bug reports with reproducible steps to help development teams resolve issues efficiently
▪️ Performed cross-browser and cross-platform testing to ensure a consistent user experience
▪️ Worked with tools such as Jira and Postman for defect tracking and API testing
My goal is to help teams launch reliable, user-friendly products through detailed test planning, execution, and reporting.
Additional Skills:
▪️ Test documentation & reporting
▪️ Cross-browser & cross-platform testing
▪️ API & UI testing (utilising tools such as Postman & Jira)
▪️ Regression, Smoke, and UAT Testing
Let’s collaborate to deliver a smooth, bug-free experience for your users. 🚀
Functional Testing
Software QA
QA Testing
Regression Testing
Bug Tracking & Reports
Secure SDLC
Jira
Test Execution
Mobile App Testing
Manual Testing
Ryan W.
Huntingdon, United Kingdom
$20/hr
5.0
30 jobs
Website & App Tester | Voice Artist | UX & QA Specialist
I help businesses improve their platforms through detailed testing, clear feedback, and professional voiceover work that brings projects to life. I’ve worked with clients across a wide range of industries globally, delivering reliable results and strong communication every time.
---
## **🎤 Voiceover Services**
I don’t just provide a voice — I help bring your project to life with tone, clarity, and purpose.
**Services include:**
* Commercials
* Corporate narration
* E-learning
* Animation
**Voice styles:**
* Friendly & conversational
* Genuine & believable
* High-energy & dynamic
* Cool & modern
**What you can expect:**
* Fast turnaround (often within 1–4 hours)
* Studio-quality audio
* Background music options (royalty-free library available)
* Live direction via Zoom or your preferred platform
🧪 Website & App Testing (QA / UX)
I provide detailed testing and feedback to ensure your website or app runs smoothly, looks professional, and delivers a great user experience.
Testing expertise:
* Functional Testing
* Manual Testing
* Website & Mobile App Testing
* Usability / UX Testing
* Regression Testing
* Cross-browser & device testing
* Payment flow testing
What I deliver:
* Clear, structured bug reports with evidence
* Test case creation and execution
* UX-focused feedback to improve conversions
* Identification of edge cases and critical issues
**💡 Why Clients Choose Me**
* Proven experience working with clients worldwide
* Strong attention to detail and usability
* Clear communication and actionable feedback
* Flexible and reliable with deadlines
* Focused on helping your product succeed, not just testing it
🔧 Skills
Manual QA Testing • UI/UX Evaluation • Cross-Browser Testing • Mobile App Testing
Test Case Design • Bug Reporting • Payment Testing • Visual QA
Regression Testing • Exploratory Testing • Agile & Waterfall
---
⭐ Let’s Work Together
Send me a message or invite me to your project — I’m happy to jump in, provide value quickly, and help you get the results you’re looking for.
SEO
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Construction
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SEO Content
SEO Strategy
Video Editing
Video Editing Software
Ajesh Kumar N.
Nottingham, United Kingdom
$19/hr
5.0
4 jobs
Shipping fast is easy. Shipping fast without breaking things? That's where we come in.
I'm Ajesh, co-founder of CalibreCode - a specialist QA and software testing agency with 14,000+ hours logged on Upwork, a 100% Job Success Score, and Top Rated Plus status. We've helped startups, scaleups, and enterprises across the UK, US, and India launch faster, reduce production bugs, and build release confidence.
What we do:
Manual & Automated Testing - thorough coverage across web, mobile, and enterprise platforms
Test Automation - Selenium, Cypress, Playwright, and CI/CD integration to catch issues before they reach users
Performance & Load Testing - validating that your app scales under real-world demand
End-to-End QA Consulting - embedded QA strategy from sprint planning to release sign-off
Clients don't just hire us to find bugs. They hire us because they want a QA partner who understands their product, integrates with their team, and takes ownership of quality, not just a checklist.
We've worked across SaaS, HR Tech, RegTech, EdTech, AR/VR, and event platforms. Whether you need a dedicated QA resource, a rapid audit before launch, or a long-term testing partner, we can be up and running within days.
Let's make sure your users never find the bugs we already caught.
Functional Testing
Software QA
Web Testing
Mobile App Testing
QA Engineering
Automated Testing
Selenium
QA Management
WebdriverIO
Manual Testing
Ben L.
North Shields, United Kingdom
$27/hr
5.0
34 jobs
ISEB and Microsoft qualified software consultant with 14+ years experience in the industry. Background in C# for automation, building frameworks using Selenium Web Driver and SpecFlow. Have worked within different industries, across the likes of e-commerce, finance, cloud data, utilities, digital identity, education, gaming & healthcare.
Throughout my Upwork career, I have worked on projects that cover UI & device user testing, localisation testing, automation and mentoring, API testing and UX testing
From my well established QA career, a summary of my skills would be;
- Very flexible to client needs regarding working days/hours
- Highly motivated and comfortable working individually or within a team
- Experienced testing applications built with a .Net framework
- Experienced testing front end applications
- Experienced testing APIs using Postman & ReadyAPI
- Experience using Azure & Jira for for test case and defect management
- UI and app testing on web and mobile
- Localisation testing
- Performance/Load testing with JMeter
- Test Strategy/Plan building
- Defect and test case management using Jira & Azure
- Building automation frameworks using C# & Selenium or Playwright & Typescript
- Creating CI/CD pipelines using Azure Dev Ops and GitHub Actions
- Integration testing
Software Testing
Testing
Software QA
Selenium WebDriver
Web Testing
Database Testing
Test Automation Framework
API Testing
Automated Testing
Selenium
C#
Manual Testing
Azure DevOps
QA Testing
Mark C.
Sunderland, United Kingdom
$25/hr
4.9
50 jobs
I’m a detail-driven QA Software Tester and Business Systems Analyst with professional experience across software testing, systems support, and business process improvement in both freelance and organisational environments.
I bring the rare combination of hands-on testing expertise and real-world systems analysis experience, meaning I don’t just find bugs - I understand how systems, users, and business processes connect.
🔍 What I Do Best
Manual testing for web, mobile, and desktop applications
Writing clear, reproducible bug reports with logs, screenshots, and step-by-step evidence
Usability & UX feedback from a real end-user and business perspective
Functional, regression, happy/sad path and exploratory testing
Reviewing user journeys and identifying friction points
Supporting teams with UAT, requirements validation, and system improvements
🧠 Professional Systems & Business Experience
Alongside freelance QA work, I work professionally in systems and programme environments, where I:
Support and improve business systems used by large organisations
Work with stakeholders to understand requirements and translate them into system solutions
Investigate system issues and identify root causes
Contribute to process improvements and system change initiatives
Bridge the gap between technical teams and non-technical users
This means I naturally test software with a business analyst mindset - thinking about real users, real workflows, and real operational impact.
🛠 Tools & Platforms
Jira • Figma • Android Studio • TestRail-style reporting • Slack • API & integration testing exposure
Experience with structured testing approaches from platforms including uTest, UserTesting, Tester Work, and Userlytics.
📱 Test Devices
Huawei P30 Pro
Huawei P20 Pro
iPhone XR
Windows 10 Desktop
🤝 What Clients Like About Working With Me
✔ Clear communication
✔ Thorough, structured feedback
✔ Reliable turnaround
✔ Strong attention to detail
✔ Ability to think like both a tester and a business user
If you need someone who can test properly, think critically, and communicate clearly with your team, I’m ready to help.
Software QA
Bug Reports
User Flow
Customer Service
Usability Testing
Bug Tracking & Reports
User Experience
Review Website
QA Software & Testing Tools
Quality Assurance
API Testing
Manual Testing
Data Entry
Microsoft Word
Jira
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