Hire the Best Functional Testing Specialists
in the United Kingdom

More than 3,000 reviews on G2
Rating is 4.5 out of 5.
4.5/5
of Upwork by G2 peer reviewers
Tahir S.

Brighton, United Kingdom

$10/hr
5.0
18 jobs

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 Artist British Audiobook Narrator Audiobook Narrator English Audiobook Narrator British Voice Over Artist English Voice Actor UK Voice Actor British Voice Actor Male Voice Actor British Male Voiceover British Male Voice Talent UK Male Voiceover English Male Voice Actor British Voiceover British Narrator UK Voice Over Artist British Male Narrator Voice Over Voiceover UK Voice Actor English Voice Talent website tester, app tester, mobile app tester, web app tester, manual tester, QA tester, software tester, usability tester, UX tester, UI tester, QA specialist, UX specialist, QA analyst, freelance tester, remote tester, beta tester, user testing, product tester, digital tester, cross browser testing, cross platform testing, responsive testing, bug tester, bug reporting, QA testing services, usability analysis, UX audit, UI review, heuristic evaluation, accessibility testing, functional testing, regression testing, smoke testing, sanity testing, performance testing, load testing basics, test case writing, test plan creation, QA documentation, bug tracking, Jira QA, Trello QA, test reporting, QA automation basics, Selenium basics, mobile usability testing, Android app tester, iOS app tester, SaaS tester, website QA, landing page testing, ecommerce testing, Shopify testing, WordPress testing, UX feedback, UI feedback, app usability review, website usability review, QA review expert, UX research assistant, user journey testing, customer experience testing, conversion testing, CRO feedback, A/B testing support, UX improvement suggestions, UI improvement suggestions, design feedback, prototype testing, Figma testing, Adobe XD testing, wireframe testing, product feedback specialist, usability insights, QA consultant, QA freelancer, UX freelancer, usability consultant, digital product tester, interface testing, interaction testing, frontend testing, backend QA basics, API testing basics, Postman testing, QA tools expert, testing documentation, QA workflow, defect tracking, QA lifecycle, Agile QA, Scrum QA, sprint testing, QA reporting, QA metrics, QA review, QA checklist, QA validation, QA verification, QA support, QA debugging, QA issue tracking, QA bug fixing support, QA evaluation, QA feedback, QA testing expert, QA specialist freelance, QA engineer freelance, usability testing expert, UX audit expert, UX review expert, UX testing freelance, UX consultant freelance, usability tester freelance, app QA expert, website QA expert, product UGC Creator, UGC Content Creator, User Generated Content, Product Reviews, Brand Collaborations, TikTok UGC, Instagram Reels Creator, Video Testimonials, Lifestyle Content Creator, Voiceover Artist, Website Tester, App Tester, UX Tester, QA Specialist, Mobile App Reviews, Unboxing Videos, Product Demonstrations, Social Media Content, Short Form Video Creator, Authentic Brand Content, Digital Creator, Content

  • Construction
  • Virtual Assistance
  • 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

How it works

Post a job for freePost a job

Tell us what you need. Create your own job post or generate one with AI then filter talent matches.

Hire top talent fast

Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.

Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

Payment simplified

Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.

Don't just take our word for it

How do I hire a Functional Testing Specialist in the United Kingdom on Upwork?

You can hire a Functional Testing Specialist in the United Kingdom on Upwork in four simple steps:

  • Create a job post tailored to your Functional Testing Specialist project scope. We'll walk you through the process step by step.
  • Browse top Functional Testing Specialist talent on Upwork and invite them to your project.
  • Once the proposals start flowing in, create a shortlist of top Functional Testing Specialist profiles and interview.
  • Hire the right Functional Testing Specialist for your project from Upwork, the world's largest work marketplace.

At Upwork, we believe talent staffing should be easy.

How much does it cost to hire a Functional Testing Specialist?

Rates charged by Functional Testing Specialists on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.

Why hire a Functional Testing Specialist in the United Kingdom on Upwork?

As the world's work marketplace, we connect highly-skilled freelance Functional Testing Specialists and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream Functional Testing Specialist team you need to succeed.

Can I hire a Functional Testing Specialist in the United Kingdom within 24 hours on Upwork?

Depending on availability and the quality of your job post, it's entirely possible to sign up for Upwork and receive Functional Testing Specialist proposals within 24 hours of posting a job description.