Hire the Best QA Engineers
in the United States

SAVE 20% OF YOUR BUDGET & TIME! Note that I will waive the 1:1 consultation fee after a contract is signed. AUTHORIZED TO WORK IN THE EU & USA I can provide a cost-effective, comprehensive solution for your testing needs within a 48-hour turnaround time, including an 18-hour end-to-end test cycle of your website or mobile app, the complete list of issues found in order of severity, and a report summarizing the issues and suggested UX improvements from the test cycle. For repeat clients, I can help with test case management, building automation, and, with my graphic design background, I can come up with UX designs and mock-ups. Areas of Expertise: • Automated Testing Software: Phantom JS, Selenium WebDriver, Appium • Language Experience: coding in PHP & Java, some familiarity with JavaScript/Node.js, CSS, SCSS, HTML, Python • Database Experience: MySQL • Dependency Managers: Composer, NPM, Gradle • Related Software Experience: Linux, Charles, PHPStorm, Swagger, Gitlab, Jira, Confluence, Jenkins An award-winning, results-oriented Quality Assurance Engineer looking to connect a strong background in mentorship, teaching, and team-building with current skills in developing, design, and maintaining automated test plans for web and mobile software. Proficient in analyzing test results, dissecting potential defects, performing root cause analysis, and creating clear documentation for developer followthrough. Adept at collaborating with Product Owners and Developers to facilitate problem resolution and translating business plans and requirements into test plans. Excellent communicator and great energy, with a high capacity for learning and the innate ability to manage multiple projects under pressure. Adjectives that describe me as a human being: meticulous, diligent, focused, thoughtful, driven, energetic, persistent, calm, empathetic, attentive, creative, athletic, cooperative, passionate, dedicated, tenacious, humorous Industry Expertise: Test Planning & Execution, Leadership & Team Building, Bug Reporting & Tracking, Web & Mobile Automation Skills: TestRail, JIRA, Charles, ADB, PHP, Python, Git, SOTI, Postman, Selenium, Appium, Swagger, SQL Achievements: Built a successful QA shop from zero -In addition to finding critical issues, I developed efficient processes for ongoing testing and created and trained a great team of new and remote testers Helped clients achieve their goals in as little as 18 hours -I have and end-to-end testing method that has helped me identify issues major and minor in a cost-effective 18-hour cycle Professional Experience: Quality Assurance Manager, TRIPP, Inc., Los Angeles, CA (7/2018 – 12/2019) TRIPP “Mood on Demand” VR Wellness • Built company QA department and TestRail procedures from scratch • Mentored and trained new remote and on-site testers in QA procedures, bug reports, adb commands and other relevant topics • Pushed for progress towards automated testing where possible, including logging data and creating Python scripts to parse the logs Quality Assurance Engineer, CrowdRise/GoFundMe, Los Angeles, CA (2/2016 – 2/2018) Online Fundraising & Crowdfunding • Manual and automated testing on the front- and back-end (API) of the web app • Praised for thorough testing and catching bugs before key software releases; noted for working extra hours to get the job done • Tasked with completing manual testing, committing and code-reviewing related test automation updates and maintaining local test environment under hands-off style management • Rapidly transitioned from a primarily black/gray box test background to white box test shop; learned PHP • Self-sufficiently managed an increased heavy workload under increasingly aggressive deadlines from Product team • Sole QA support for a team’s workload during a period before the merger; successfully delivered key releases despite increased pressure and challenges • Responsible for vetting & escalating bugs reported by happiness team/clients/partners • Approached for assistance and mentorship by newer employees Quality Assurance Tester-turned-Engineer, textPlus, Marina del Rey, CA (9/2013 – 2/2016) Free SMS Text + Calls • Promoted from temporary position as Customer Service Agent to current position during a department restructuring and downsizing due to exceptional performance as a Customer Service Agent. • Recognized as a department asset after quick acclimation with minimal training. • Quality Assurance Engineer responsible for writing Java test scripts and performing application functionality tests for a variety of users. • Monitor tickets filed for code production and deployment of new server and client builds. • Collaborate with Product Owners and Developers to resolve issues and bugs discovered during testing.

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.

Hi, I’m Mark. I'm a QA Engineer focused on website and application testing. I help businesses ensure their websites and applications work smoothly by identifying bugs, validating user flows, and providing clear, actionable feedback. I have hands-on experience testing real-world systems and understand how to approach testing from both a user and technical perspective. What I can help you with: Website and web application testing Identifying and documenting bugs (clear steps to reproduce, expected vs. actual results) Testing user flows (sign-up, login, checkout, forms, etc.) Basic data validation and backend checks (SQL exposure) Cross-browser and usability testing My background: QA experience testing applications and reviewing logs Experience working with backend systems and troubleshooting issues Professional experience in test automation (Python/pytest), which helps me think systematically and catch edge cases I focus on being detail-oriented, reliable, and easy to work with. My goal is to help you catch issues early and improve the overall quality of your product. If you’re looking for someone to thoroughly test your website or app and provide clear, professional feedback, I’d be happy to help.

Career Highlights * ISTQB Certified Tester. * Proficient in Automation and Manual testing. * Played QA lead role. * ITIL Certified. * Awarded with Smart Value award by SYNTEL LTDfor performing efficiently & smartly. * Awarded with Client Focus award by ADP Pvt Ltd for delivering client requirements on time with quality, also received multiple awards for extraordinary performance. * Received Service Excellence and Results Driven spotlight awards.

✔️ Automation Testing ✔️ Playwright ✔️ AI-Assisted testing ✔️ Functional QA ✔️ Website testing ✔️ Manual QA ✔️ Bug report✔️ Usability testing & App reviews✔️ iOS and Android app testing ✔️ Regression Testing✔️ Selenium WebDriver ✔️ Cypress ✔️ End-to-end testing ✔️ UI & UX testing ✔️ ChatGPT ✔️ Gemini ✔️ Copilot ✔️ Claud Are you looking to launch a flawless web or mobile app, scale your release velocity, or get deep, critical insights into why your users might be dropping off? As a Senior QA Automation & Manual Testing Engineer with over 11 years of experience across US-based enterprise platforms and high-growth startups, I don't just find bug. I protect your product’s reputation and user experience. I bridge the gap between heavy-duty engineering (building scalable automation pipelines) and high-empathy user advocacy (usability reviews, deep exploratory sessions, and UX feedback). 🚀 High-Demand QA Services I Offer: 1. Premium US-Based Web & Mobile App Reviews & Feedback Real-Device USA Reviews: Testing on actual, physical iOS and Android devices to replicate authentic US user environments, carrier networks, and localized workflows. UX & Usability Audits: Deep-dive reviews looking at user friction points, layout inconsistencies, navigation logic, and accessibility (WCAG). You receive a structured video walk-through or a comprehensive report. Exploratory & Ad-Hoc Testing: Going off-script to mimic unpredictable real-world user behavior, finding edge-case crashes before your customers do. 2. Enterprise-Grade Test Automation Frameworks: Web Automation: Architecting lightning-fast, zero-flakiness End-to-End (E2E) automation frameworks from scratch using Playwright (TypeScript/JavaScript), Cypress, and Selenium (Java).Mobile Automation: Native and cross-platform app test frameworks using Appium.CI/CD Integration: Sharding and parallelizing tests inside GitHub Actions or Jenkins so your dev team gets quality feedback in under 5 minutes on every commit. 3. Functional, Manual, & API Testing Comprehensive test plan/test case design in Jira, TestRail, or Azure DevOps. Robust REST API testing and automation utilizing Postman. Regression and Smoke testing cycles to protect critical business logic during fast-paced sprints. 🛠️ Core Technical & QA Stack: Languages: TypeScript, JavaScript, Java, Python, SQLAutomation: Playwright, Selenium WebDriver, Cypress, AppiumMobile Testing: Physical iOS (iPhones) & Android devices, BrowserStack, Firebase Test LabAPI & Backend: Postman, REST Assured Management & CI/CD: Jira, TestRail, GitHub Actions, Jenkins, Docker 💼 What You Get in Every Deliverable: Clear, Reproducible Bug Reports: Ticket-ready bug descriptions with steps to reproduce, clear environmental context, and attached screen recordings/logs. Actionable UX Feedback: Strategic product reviews detailing why a feature feels clunky and how to optimize it for higher conversion rates. Clean, Maintainable Code: Automation repositories built using the Page Object Model (POM), fully commented and ready for your developers to maintain. Whether you need a quick, meticulous usability review before a major app store launch, or a strategic partner to build an automation testing pipeline from scratch—let's chat. Click the "Invite" button on the top right, and let’s discuss how we can secure your app's quality.

As a Senior Lead Engineer with 15 years of experience in Automation, Performance QA, and enterprise software quality, I specialize in testing AI-powered, SaaS, web, mobile, and financial platforms for reliability, accuracy, scalability, and user experience. I have built and led high-performing QA teams, designed scalable automation frameworks using Selenium, Playwright, Cypress, and API testing tools, and implemented shift-left QA strategies that reduced defect leakage to under 5%. My expertise now extends into AI product quality, including AI chatbot testing, prompt validation, AI output evaluation, hallucination checks, transcription workflow testing, generated-content validation, API testing, regression testing, and end-to-end validation of AI-enabled user flows. I focus on testing not only whether the software works, but whether the AI behavior is accurate, consistent, explainable, and useful for real users. I bring strong experience in functional, API, integration, performance, and regression testing, along with CI/CD pipeline integration and structured defect reporting. If your AI product needs a QA professional who can combine traditional software testing discipline with AI-focused validation, I can help improve release confidence, reduce risk, and deliver a more reliable user experience. Let’s discuss how I can help elevate the quality of your AI-powered product.