Freelance QA Engineers

Freelance QA EngineersFreelance QA Engineers

Projects People

maxDnipro, 49000

Software Architect | From Idea to Production | 140+ Projects

$100k+: Earned

5x: Hired

5.0: Rating

108: Followers

Software Architect | From Idea to Production | 140+ Projects

Cover image for Qt/C++ Software Performance Optimization

Qt/C++ Software Performance Optimization

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26

Cover image for Making Mobile Chat Feel Instant & Native

Making Mobile Chat Feel Instant & Native

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32

Cover image for DAO app for personal growth across every life area

DAO app for personal growth across every life area

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14

Cover image for Zoom SDK Integration for macOS Capture App

Zoom SDK Integration for macOS Capture App

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13

Adrian Rodriguez

Frontend engineering

$25k+: Earned

1x: Hired

5.0: Rating

1: Followers

Frontend engineering

Cover image for SparkMotion

$16K+ earned

1

10

Cover image for Ottasee
A multimedia social application to

Ottasee A multimedia social application to share your mixed lists of Music,Movies, Books and more!

0

87

Cover image for $25k this year is about

$25k this year is about getting my money up AND MY FUNNY UP. I’d like to thank my days ones Kubernetes, Redis and Cloudflare. I’d also like to give a special shout out to my opps… they keep designing bad architecture and I just get to clean it up.

0

91

Cover image for Sugar Shark, a AI powered

Sugar Shark, a AI powered GI tracker that analyzes and provides informed ingredient GI scores .

1

0

111

proBangkok, Thailand

Full-Stack Developer | Web Apps, Integrations & WordPress

5.0: Rating

10: Followers

Full-Stack Developer | Web Apps, Integrations & WordPress

Cover image for Fixing a Chromium Process Leak in a Rust Ingestion Service

Fixing a Chromium Process Leak in a Rust Ingestion Service

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3

Cover image for WordPress/WooCommerce Crawler 5xx Recovery

WordPress/WooCommerce Crawler 5xx Recovery

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5

Cover image for GA4 + GTM Lead Measurement and Reporting

GA4 + GTM Lead Measurement and Reporting

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8

Cover image for WordPress Technical SEO Implementation + Live QA

WordPress Technical SEO Implementation + Live QA

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10

ISTQB-Certified QA Engineer | Web, Mobile & API Testing

1x: Hired

23: Followers

ISTQB-Certified QA Engineer | Web, Mobile & API Testing

Cover image for Mobile Game QA – Art Heist Puzzle (iOS & Android)

Mobile Game QA – Art Heist Puzzle (iOS & Android)

1

178

Cover image for Virtusa | Digital Innovation Engineering

Virtusa | Digital Innovation Engineering

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23

Cover image for Unicorn Solutions | Credit Management

Unicorn Solutions | Credit Management

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32

Cover image for MetroQuest | Public Engagement

MetroQuest | Public Engagement

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41

AI & QA Automation Engineer | AI Bias Audit& Web/App Testing

13: Followers

AI & QA Automation Engineer | AI Bias Audit& Web/App Testing

Cover image for Enterprise SaaS QA Automation: AI-Powered

Enterprise SaaS QA Automation: AI-Powered Testing & CI/CD My role : Senior QA Automation Engineer Project description: Architected and implemented comprehensive test automation framework for enterprise SaaS platform, achieving 92% API and 85% UI test coverage. Developed 230+ automated tests using Pytest and Selenium with Page Object Model design pattern. Integrated AI-powered test prioritization and flaky test detection achieving 95% accuracy. Implemented GitHub Actions CI/CD pipeline reducing regression testing from 2 days to 6 hours (75% reduction). Enabled daily releases while improving production defect detection by 82%. Technologies: Python, Pytest, Selenium WebDriver, GitHub Actions, Docker, Scikit-learn

2

88

Cover image for Professional Telegram Bot Testing Framework

Professional Telegram Bot Testing Framework with AI-Powered Reports My role : Senior QA Automation Engineer & Test Framework Architect Project description: Developed a comprehensive automated testing framework for Telegram bots featuring multi-layered testing strategies (API, UI, integration), real-time screenshot capture, and AI-enhanced HTML reporting. The framework includes security validation, performance benchmarking, concurrent user simulation, and professional dashboards with interactive metrics. Built with Python/pytest, it supports CI/CD integration, generates beautiful visual reports, and handles edge cases like multilingual input, injection attacks, and stress testing. Perfect for enterprise bot validation and quality assurance.

2

98

Cover image for AI Bias Detection & Mitigation

AI Bias Detection & Mitigation Tool for Hiring Models My role: AI/ML Engineer & Fairness Auditor Project description: AI Bias Detection and Mitigation Framework for Recruitment Systems. Built a complete, production-ready tool that: Detects gender, race, and age bias in hiring ML models Uses industry-standard fairness metrics (Disparate Impact, Demographic Parity, Equal Opportunity) Applies Reweighing mitigation (AIF360) → improves fairness while keeping accuracy loss < 2% Includes interactive Gradio demo for live testing Full business impact section + compliance notes (EEOC 4/5th rule, GDPR, EU AI Act)

1

165

Cover image for E-commerce Automation Framework
My role :

E-commerce Automation Framework My role : Test Automation Engineer (UI & API) Project description: Designed and developed a comprehensive automated testing framework for an e-commerce website. The framework covers UI automation using Selenium WebDriver and Pytest, alongside robust API testing to ensure backend reliability. It enables fast, repeatable test execution with detailed reporting to quickly identify issues.

2

135

A Full Stack QA[6+ YOE] to perform End to End testing.

New to Contra

A Full Stack QA[6+ YOE] to perform End to End testing.

Cover image for Professional End-to-End Test Automation Framework

Professional End-to-End Test Automation Framework for SauceDemo A production-ready Playwright test automation suite built with TypeScript, demonstrating industry best practices for modern QA automation. 🎯 KEY FEATURES: ✅ Page Object Model (POM) architecture for maintainable test code ✅ Comprehensive test coverage including: • User login flows (valid/invalid credentials, locked accounts, performance users) • Complete e-commerce purchase workflows • Multiple user personas & edge cases ✅ TypeScript for type-safe, scalable test development ✅ Data-driven testing with JSON test data management ✅ Playwright test runner with HTML reporting ✅ Cross-browser test capability configuration 📂 PROJECT STRUCTURE: • Page Objects (web/pages/) - LoginPage, BuyProductPage • Test Cases (web/testcases/) - Login tests, Purchase flow tests • Test Data (dataObjects/testData/) - User credentials & scenarios • Configuration files (playwright.config.ts, tsconfig.json) 🔧 TECHNOLOGIES: • Playwright 1.61.0 • TypeScript • Node.js • HTML Test Reports

1

0

200

Cover image for Built a Selenium Automation Framework

Built a Selenium Automation Framework using Java and TestNG for automated web application testing. Implemented Page Object Model (POM), DataProvider-based parallel execution, reusable utility classes, cross-browser support, and automated validations for multiple application modules. Integrated assertions, browser management, and scalable framework design to improve test execution efficiency and maintainability. github - https://github.com/mrmanojrana431/saucedemo-selenium-java-automation-test

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86

Cover image for Designed and executed an end-to-end

Designed and executed an end-to-end performance test scenario for flight booking workflow on BlazeDemo. Created JMeter scripts covering: ->Launch Application ->Select Departure & Destination ->Choose Flight ->Complete Flight Booking ->Booking Confirmation Implemented dynamic correlation using XPath Extractors and Regular Expression Extractors. Added Assertions for response validation. Configured Think Time to simulate realistic user behavior. Executed load test with 10 concurrent virtual users. Analyzed performance metrics using Aggregate Report. Maintained test scripts in Git repository with version control. Tools & Technologies: Apache JMeter 5.6 XPath Extractor Regular Expression Extractor HTTP Cookie Manager Git & GitHub Deliverables: JMeter Test Plan (.jmx) Execution Video Recording Test Results & Aggregate Report Source Code Repository Github - https://github.com/mrmanojrana431/jmeter_blazedemo

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82

Cover image for A good QA is not

A good QA is not someone who just validates Figma vs. UI. A good QA is someone who asks questions. Do we really need this? Why are we building it this way? Can we simplify it? Can we add this as well? Can we solve this in another way? What happens in this edge case? How will this impact the user? QA should not just find bugs after the feature is built. A strong QA challenges the requirements, thinks about the user, identifies gaps, and helps the team build a better product, not just a bug-free one. Testing is not just validation. Testing is questioning. 👏 #QualityAssurance #SoftwareTesting #QA #SoftwareQuality #Testing

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77

proSt Paul, USA

AI Evaluation Engineer · Benchmarks · Agent Testing

AI Evaluation Engineer · Benchmarks · Agent Testing

Cover image for Merged C99 Regression Tests & Download Integrity

Merged C99 Regression Tests & Download Integrity

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1

Cover image for Coding-Agent Verification: Idempotent Retry

Coding-Agent Verification: Idempotent Retry

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1

Cover image for Agent Flight Recorder

Agent Flight Recorder

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1

Cover image for I built LocalParse to make

I built LocalParse to make structured data easier to inspect directly in the browser. Its dark interface combines an expandable tree with clear file-format information and JSON/JSONL export controls. I also completed a focused reliability pass: preserving JSONL labels during expansion, clearing stale export data, surfacing malformed input, and safely displaying object keys. The fixes are backed by 29 regression tests. Screenshots use synthetic sample data. Roles: Frontend Engineer, QA Engineer Tools: JavaScript, HTML5, CSS3, GitHub Live demo: https://localparse-review.oloioiolo.chatgpt.site/ (https://localparse-review.oloioiolo.chatgpt.site/)Source: https://github.com/cwwjacobs/LocalParse

0

23

Multan, Pakistan

Software QA | Manual, Automation & Performance Testing

New to Contra

Software QA | Manual, Automation & Performance Testing

Cover image for Selenium E2E Test Automation Framework with Java

Selenium E2E Test Automation Framework with Java

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1

Cover image for REST Assured API Automation Framework Development

REST Assured API Automation Framework Development

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0

Cover image for REST API Performance Testing & Optimization

REST API Performance Testing & Optimization

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0

Cover image for Playwright E2E Test Automation Framework with TypeScript

Playwright E2E Test Automation Framework with TypeScript

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0