Hire the Best User Acceptance Testing Specialists

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

Chennai, India

$15/hr
5.0
43 jobs

✍🏻 Are you in search of a highly skilled Software QA Engineer with expertise in Performance testing, Performance engineering, Automation testing, Load testing, and Security testing? Look no further! With over 15+ years of experience in the QA industry, I have a proven track record of delivering exceptional software quality solutions to clients. My specialization lies in Performance testing, where I ensure that applications perform optimally, handle high loads, and deliver seamless user experiences. ⭐QA Services ⭐ ✅ Performance Testing ✅ Automation Testing ✅ Security/Penetration Testing ✅ Functional Testing/Regression/Acceptance Testing ✅ Usability Testing ✅ Mobile App Testing (IOS / Android) ✅ Strong knowledge of HTML, CSS and SQL, Python, and Java programming ✅ User Acceptance Testing ✅ API Testing ✅ Experience in SOAP API / REST API/ GraphQL 🛠️ Tools Expertise : ✅ ️Performance testing: JMeter, LoadRunner, Neoload, Gatling, Blaze Meter and K6 ✅ ️Web Automation : Selenium WebDriver, WebDriver.IO, ✅ Defect Tracking Tool: JIRA, Bugzilla, Test Rail ✅ ️Mobile testing: Appium ✅ Monitoring Tools: Dynatrace, AppDynamics, DxApm, Introscope, and Net Diagnostics ✅ Cloud Server Monitoring: AWS Could watch, Open Shift Container, GCP ✅ Data visualization: Splunk, Kibana ✅ Load Generator : Redline13, Balzemeter, LR ✅ ️API testing: Postman, Swagger, Insomnia, Fiddler ✅ ️Cross-browser testing: Browser Stack, Sauce Labs ✅ ️Version Control: Git, Github, GitLab, Bitbucket, Perforce ✅ ️Databases: MongoDB, SQL, MYSQL, Oracle ✅ ️CI/CD: Jenkins, Azure DevOps, Bamboo ✅ ️Build Management: Ant, Maven, Gradle ✅ ️Frameworks: Cucumber, TestNG, JUnit, Mocha, Jasmine ✅ ️Programming knowledge: Java, HTML, JavaScript, Python ➰ Performance Testing Framework ➰ ✅ ️JMeter + Perfmon+ Jenkins ✅ ️JMeter + Jenkins + Grafana ✅ ️JMeter + InfluxDB ✅ ️JMeter + RedLine13/BlazeMeter ⭐ Domain Knowledge ⭐ 📌 E-commerce and retail 📌 Healthcare and medical devices 📌 Finance and banking 📌 Gaming and entertainment 📌 Education and e-learning

  • User Acceptance Testing
  • Software Testing
  • Software QA
  • Performance Testing
  • Load Testing
  • Apache JMeter
  • QA Testing
  • Selenium
  • Selenium WebDriver
  • API Testing
  • QA Engineering
  • Stress Testing
  • QA Software & Testing Tools
  • Automated Testing
  • Manual Testing
Tinatin A.

East Brunswick, New Jersey

$25/hr
5.0
13 jobs

Bugs found before launch save thousands in fixes after. I help startups and product teams ship cleaner software by catching critical issues early — before real users do. What I deliver: → Detailed bug reports with clear reproduction steps → Structured test cases for web & mobile apps → Fast turnaround with clear communication Tools: Jira, Trello, TestRail | Certified in Software Quality Engineering Ready to test your product? Let’s talk

  • Testing
  • Software QA
  • QA Testing
  • QA Software & Testing Tools
  • Mobile QA
  • Test Report
  • Test Script
  • Manual Testing
  • UserTesting
  • User Experience
Haley C.

Uxbridge, Canada

$40/hr
5.0
10 jobs

I will test your website or app and find critical bugs + UX issues before your users do Description:
 Launching or updating your website or app? I help you catch the issues that frustrate users and hurt conversions before they cost you customers. I provide a detailed QA + usability review focused on real user experience, not just technical bugs. What you’ll get: * Clear list of bugs (with screenshots) * Step-by-step reproduction instructions * UX/usability issues that may reduce conversions * Mobile + desktop testing * Prioritized report (so you know what to fix first) Perfect for: * Small business websites * Shopify stores * SaaS dashboards * Landing pages before launch Why work with me:
I focus on how real users interact with your product not just whether buttons “work.” That means you get insights that actually improve your results.

  • Software Testing
  • Product Backlog
  • Product Management
  • Quality Assurance
  • Internal Communications
  • Visualization Concept
  • Bug Reports
  • QA Testing
  • Product Testing
  • Usability Testing
  • Web Testing
Asmara S.

Fremont, California

$25/hr
5.0
5 jobs

Hey, I am a Software QA Engineer with 5+ years of hands-on experience testing web and mobile applications across multiple domains. I have worked across the full software testing life cycle from analyzing requirements and writing detailed test plans to executing test cases, managing defects, and supporting production releases. Whether I am testing a complex end-to-end business workflow, validating API responses, or performing cross-browser and mobile compatibility checks, I bring a structured and detail-oriented approach to every project. What I can help you with: -Test planning and QA documentation -Functional, regression, smoke, and exploratory testing -API testing using Postman and Swagger -Mobile testing on Android and iOS (real devices and simulators) -UI/UX and cross-browser validation -SQL-based backend data verification -Defect tracking and reporting using JIRA -End-to-end business workflow testing -UAT support and production release validation Why work with me: -Full STLC ownership — from requirement review and test design through UAT support and go-live validation -Cross-functional collaborator — experienced working alongside developers, product managers, and UX designers in Agile/Scrum teams -Web and mobile covered — tested on real Android and iOS devices as well as simulators -Thorough documentation — every test case, defect report, and QA process clearly written for full traceability -Fast onboarding — I adapt quickly to new systems, workflows, and project environments If you need a reliable QA professional who communicates clearly, documents thoroughly, and takes quality seriously from day one, let's talk. I am ready to help you reduce release risk and ship software your users can trust.

  • Software Testing
  • Software QA
  • Manual Testing
  • Functional Testing
  • Web Testing
  • Mobile App Testing
  • API Testing
  • Regression Testing
  • Smoke Testing
  • Postman
  • Swagger
  • Jira
  • Test Case Design
  • Bug Tracking & Reports
  • Quality Assurance
Ivan V.

Lviv, Ukraine

$20/hr
5.0
90 jobs

⭐️ Highly skilled QA Engineer with over 9 years of experience in various types of testing, including web, mobile, and desktop platforms. Proficient in creating test documentation, working with Agile methodologies, and utilizing a wide range of testing tools and frameworks. ⭐️Top Rated Plus freelancer⭐️ 100% Job Success 📌Summary of Skills: * Manual Testing Mobile Applications (Android & IOS with Testflight installed) * Manual Testing of Desktop Software and Web-based Software * Excellent bug finder with a good eye for details, receiving awards and bonuses * Document creation (Test plan, test case, test script, test scenario, user's manual) * Report Bugging Documentation * Project Handover Documentation * Worked on Agile Methodologies 📌Scope of Testing: * Manual Testing (Functional testing such as smoke and sanity testing, regression, usability, alpha-beta, positive and negative, GUI, exploratory, API, and end-to-end testing) * Mobile Apps Testing * Game app testing(mobile/desktop) * Cross-browser Testing * UI/UX Testing/Feature suggestion * Test media platforms such as Roku, Visio, Tizen, Apple TV, Fire TV, and Android TV - 5 years of experience 📌Technical Experience: * Platforms: Windows XP, Windows 7, Windows 10 * Database: MySQL * Remote Applications: TeamViewer, Remote Desktop Application * Defect Tracking and Management Tools: JIRA, Trello, X-Ray, Excel, Youtrack, Zephir, Mantis * Other software/tools: Browserstack, Google Apps, Dropbox, Postman, Slack, Microsoft Teams * Microsoft Applications and documentation tools 📌Devices: * Android - Xiaomi mi 9t PRO * iPhone XR, iPhone 12 plus, iPhone 13 (TestFlight ready) * Tablet - iPad 8 gen * Apple TV * Google Chromecast ⭐️ Why you should choose me over another freelancer ⭐️ - I provide high-quality and professional work so that the customer has a positive experience of working with me, is satisfied with the result, and wants to come back to me next time with a new job offer. - I believe that my passion for testing and ability to learn, adapt to new challenges, and grow make me a strong competitor. Have any questions or want to discuss your projects? Please do not hesitate to contact me. Let’s get started! Cheers! ------------------------------------------------------------------------------------------------ Keywords: Quality Control, Manual Testing, Quality Assurance, QA Testing, Web Testing, Bug Reports, GUI Testing, UI Testing, Software QA, QA Engineering, Desktop Application Testing, Functional Testing, Non-functional, Software Testing, Web App Tester, Usability Testing, User Acceptance Testing, Defect Tracking, Test Reporting, Test Plan, Test Case, Data Testing, Website Testing, User Story, Beta Tester, Stability/Reliability testing, Compatibility testing, Black box Testing, Cross-Browser Testing, Cross-Device Compatibility, Retesting, Front End Testing, Accessibility testing, Web Content Accessibility Guidelines (WCAG).

  • Testing
  • Software QA
  • Beta Testing
  • Web Testing
  • Functional Testing
  • Test Design
  • Game Testing
  • Requirement Analysis
  • TestFlight
  • GUI Testing
  • iOS
  • Manual Testing
  • Android
  • QA Testing
  • QA Software & Testing Tools
  • Test Plan
  • Mobile QA
  • QA Engineering
  • Test Case Design
Ayesha Z.

Lahore, Pakistan

$7/hr
4.8
77 jobs

I’m a passionate QA tester who loves breaking applications (only to make them stronger and better). I focus on exploring apps the way real users do, finding bugs, usability issues, and performance gaps before they reach production. With 7+ years of strong experience in Manual plus Auomaion testing and quality assurance for web and mobile applications. I focus on identifying real user issues, validating complex workflows, and ensuring applications are stable, user-friendly, and production-ready. I have worked with SaaS platforms, business applications, and customer-facing systems where accuracy, usability, and reliability directly impact business success. My strength lies in detailed exploratory testing and end-to-end workflow validation that helps uncover hidden defects before release. ------------------------------------------------------------------------------------------------ I Can Help You With ✅ Web Application Testing ✅ Mobile Application Testing ✅ SaaS Platform Testing ✅ Business Workflow Validation ✅ Dashboard & Admin Panel Testing Manual Testing Expertise ✅ Functional Testing ✅ Regression Testing ✅ Smoke & Sanity Testing ✅ Exploratory Testing ✅ UI/UX & Usability Testing ✅ Black Box & Grey Box Testing ✅ Integration & System Testing ✅ End-to-End Workflow Validation ✅ Compatibility & Cross-Browser Testing ✅ User Acceptance Testing (UAT) ✅ Backend & Database Validation ✅ Security & Negative Testing Automation & API Testing (Supporting Skill) ✅ Automation using Cypress, Playwright & Selenium ✅ API testing using Postman ✅ Automation support for regression and critical flows Core Strengths ✅ Strong attention to detail and defect identification ✅ Deep understanding of user behavior and workflow testing ✅ Clear and structured bug reporting with screenshots and recordings ✅ Strong experience working in Agile and Scrum environments ✅ Ability to quickly understand business requirements and convert them into test scenarios ------------------------------------------------------------------------------------------------ 🌟 Why Clients Choose Me ⭐ Detail-Oriented Testing Approach I focus heavily on real-world usage testing to ensure software works smoothly for end users. ⭐ Clear Communication & Reporting I provide detailed, easy-to-understand bug reports that help development teams resolve issues faster. ⭐ Reliable & Deadline Focused I consistently meet testing deadlines while maintaining high testing standards. ⭐ Flexible Across Industries Experienced in testing SaaS platforms, dashboards, and business workflow applications. 𝐈’𝐦 𝐧𝐨𝐭 𝐣𝐮𝐬𝐭 𝐚 𝐐𝐀 𝐭𝐞𝐬𝐭𝐞𝐫 — I’m a quality advocate, problem-solver, and product perfectionist who treats every application as if it were my own. My mission isn’t just to find bugs — it’s to build confidence in your product and deliver excellence in your brand. ------------------------------------------------------------------------------------------------ Ket experties: Manual Testing, Software Testing, Quality Assurance, QA Engineer, Functional Testing, Regression Testing, Exploratory Testing, Smoke Testing, Sanity Testing, UAT Testing, Web Application Testing, Mobile Application Testing, SaaS Testing, Cross Browser Testing Responsive Testing, UI Testing, UX Testing, Usability Testing, Compatibility Testing, Integration Testing, System Testing, End-to-End Testing, Database Testing; SQL Validation, Bug Reporting, Test Case Writing, Test Scenario Design, Agile QA, Scrum Testing, Backend Testing, Frontend Testing, Security Testing, Negative Testing, Black Box Testing, Grey Box Testing

  • User Acceptance Testing
  • Software Testing
  • Software QA
  • Integration Testing
  • Usability Testing
  • API Testing
  • Bug Tracking & Reports
  • Performance Testing
  • Web Testing
  • Functional Testing
  • Regression Testing
  • Mobile App Testing
  • Quality Control
  • Manual Testing
  • Quality Assurance

How it works

Post a job for free Post 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 User Acceptance Testing Specialist on Upwork?

You can hire a User Acceptance Testing Specialist on Upwork in four simple steps:

  • Create a job post tailored to your User Acceptance Testing Specialist project scope. We’ll walk you through the process step by step.
  • Browse top User Acceptance Testing Specialist talent on Upwork and invite them to your project.
  • Once the proposals start flowing in, create a shortlist of top User Acceptance Testing Specialist profiles and interview.
  • Hire the right User Acceptance 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 User Acceptance Testing Specialist?

Rates charged by User Acceptance 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 User Acceptance Testing Specialist on Upwork?

As the world’s work marketplace, we connect highly-skilled freelance User Acceptance 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 User Acceptance Testing Specialist team you need to succeed.

Can I hire a User Acceptance Testing Specialist 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 User Acceptance Testing Specialist proposals within 24 hours of posting a job description.