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Top freelance QA developers available to hire

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Freelance QA Developer5.0 (215 reviews)

I am a Business Intelligence Consultant and Coach with over 20 years of experience in managing operations and implementing data-driven projects across multiple industries. My expertise spans Power BI, Tableau, Looker, business intelligence, project management, data analytics, and process optimization, ensuring organizations can leverage data for smarter decision-making. ➡️ CERTIFICATIONS: ♦ Microsoft Certified: Power BI Data Analyst ♦ Project Management Professional (PMP) ♦ Six Sigma Green Belt ♦ Scrum Master ♦ Scrum Product Owner ➡️ EXPERTISE IN: ♦ Power BI – Integrating, preparing, modeling, visualizing, analyzing, securing, and distributing data ♦ Business Intelligence – Data-driven insights, reporting, and automation ♦ Project Management – Waterfall & Agile methodologies ♦ Lean Six Sigma – Process optimization and efficiency improvements ♦ Data Mining – Extracting, transforming, and analyzing large datasets ♦ Dashboard Design – Creating interactive, real-time analytics solutions ➡️ TOOLS & TECHNOLOGIES: ♦ Power BI Desktop, Power BI Service, Power BI Report Server ♦ Microsoft Excel & Power Query ♦ SQL Server – Data connections & queries ♦ DAX for Big Data – Advanced calculations & analytics ♦ R Script & RStudio – Statistical analysis & predictive modeling ♦ RapidMiner – Machine learning & data mining ♦ Data Integration – Connecting, extracting, cleaning, and organizing data from various sources, including Google ♦ Automation – Streamlining workflows with Power BI dashboards and reporting solutions Power BI Portfolio & Blog 🔹 Power BI Samples: https://links.edds.com.pk/powerbi-samples 🔹 Power BI Blog Posts: https://www.edds.com.pk/category/blog/bi/microsoft-power-bi/ 📌 Long-Term Engagement Terms: https://1drv.ms/b/s!AkmOjWjLHddxhKVBJj0rfUcTPGZ2gw?e=11z3SG

Freelance QA Developer - Siva sambatur
Freelance QA Developer

Experience in embedded systems(Automotive, Avionics, Rail and medical domain ) as developer/Testing, Programming Languages - c, c++, python Tools/ software packages - GTest/Gmock, RTRT, LDRA, Unit testing, Integration Testing, MS office, static code analysis, QAC, lint, polyspace, MISRA 2012 c/c++ standards, project planning

Freelance QA Developer - Gene Zeiniss
Freelance QA Developer5.0 (4 reviews)

With 13+ years in the HighTech industry, including 9 years in FinTech, I specialize in building scalable, high-performance backend systems for eCommerce and financial platforms. My expertise lies in Java, Spring Boot, Microservices, Domain-Driven Design (DDD), and Relational Databases, ensuring businesses have reliable, efficient, and secure infrastructures. Beyond my technical role, I am passionate about mentorship and community impact. I led a Backend Guild, fostering knowledge sharing and best practices across engineering teams. I also co-managed the Tech-Blogging Program at Baot, helping women in tech publish their first technical articles, and served as an Intuit Women’s Network ERG Leader, advocating for career growth and inclusion in tech. Over the years, I played a pivotal role in architectural transformations and financial integrations, including: ✅**Hybrid SDK for Sensitive Data Detection (Intuit)** – Designed a Hybrid SDK that enabled dynamic configuration updates without requiring SDK version upgrades. Extracted validation logic from the SDK and represented it as mathematical expressions. This approach was secured through a patented method: Secure, Dynamically Loaded Input Validation Using Mathematical Expressions. ✅ **Monolith to Microservices Transition (Behalf)** – Led the company’s first microservice transition, mentored other teams, and introduced an Anti-Corruption Layer (ACL) to bridge legacy dependencies and ensure a smooth migration. ✅ **Wells Fargo Integration** – Engineered a seamless connection to enhance payment processing. ✅ **Cross River Bank & PPP Integration** – Led the integration efforts during the pandemic, enabling SMBs to access critical funding through the Paycheck Protection Program (PPP). Now, as a freelance backend engineer, consultant, and mentor, I help businesses architect scalable eCommerce platforms, optimize payment flows, and build robust backend infrastructures tailored to their needs. 💡 What I Offer:🔹 **Backend Development** – Scalable, high-performance Java & Spring Boot applications. 🔹 **Consulting & Mentorship** – Guiding teams on architecture, best practices, and code quality. 🔹 **Code Reviews** – Ensuring clean, efficient, and maintainable codebases. 🔹 **Public Speaking & Thought Leadership** – Sharing insights on backend development, FinTech, and eCommerce. Let’s connect! Whether you need backend expertise, consulting, or mentorship, I’m happy to help. 🚀

Freelance QA Developer - Nicolas Pohle
Freelance QA Developer5.0 (10 reviews)

As a Sr. Test Automation Engineer and Technical Lead with about 10 years of experience in the IT scene, I have a deep understanding of Quality Assurance, Back-End Programming, and Continuous Testing. With my expertise in designing and implementing sophisticated testing frameworks, I am skilled in both manual and automated testing and have a keen eye for identifying areas for improvement and optimization. Above all, I am passionate about empowering individuals to succeed and creating a culture of excellence and innovation, where Continuous Testing is integrated into every stage of the agile software development lifecycle. I've been lucky enough to work for several enterprise-level clients in a wide diversity of domains, including entertainment, banking, finance, and e-commerce. Top quality is always expected, and keeping up with trends is a must.

Freelance QA Developer - Justin Trantham
Freelance QA Developer

Innovative, entrepreneurial, resourceful and driven software engineer focused in the iOS development space with around *10 years* of experience. Love architecting, building applications & SDKs from the ground up, mentoring and troubleshooting issues! I have always had a knack for tinkering and fixing things so troubleshooting comes naturally. Find pleasure in helping others, fixing or creating new things! Experienced with mobile, back-end, IAM, mobile security, CI/CD. My ultimate goal is to ensure you're *completely satisfied*. If you're not happy with our session(s) then a refund will be issued back to you. * Design, architecting and implementing new application * Here to help with a quick question or problem * Mentoring once or multiple sessions until your fully satisfied

Freelance QA Developer - Jiří Čarek
Freelance QA Developer5.0 (2 reviews)

I like to make life easier. If there is something possible to automate, I love to find the most efficient algorithm and to automate it. I do have 6 years experience of automated testing on different projects. I like the added value of tester. It just works for the users after all defects are resolved.

Freelance QA Developer - Ramya Raman
Freelance QA Developer

\- Expertise in developing and leading end-to-end documentation projects from scratch. \- Adaptive learner with strong communication skills. \- Experience in end-to-end QA Testing activities (Manual and Automation) and Agile Scrum. \- Leading abilities in working with the Onsite (Product owner) and Offshore (Developers) team. \- Consistently been recognized for excellent delivery and product quality. \- Expertise in Product Management.

Freelance QA Developer - Yomara Mora
Freelance QA Developer

I am a QA Automation engineer with more than 10 years of experience in testing. I have been automating for more than 7 years. I have built testing frameworks from scratch using Cypress, Selenium Webdiver + Javascript, Cypress, and Nightwatch JS. I have worked with Java + TestNg stack, protractor + typescript, and so on. I enjoy helping, teaching and learning. I am a Udemy instructor as well: https://www.udemy.com/course/bootcamp-cypress-como-crear-un-framework-desde-cero/?referralCode=BEDB10553FD6E5551978 https://www.udemy.com/course/como-integrar-cypress-con-testrail/?referralCode=61FACB853DCAF2C55E65

Freelance QA Developer - Bogdan Branescu
Freelance QA Developer

Getting things done while everyone is evolving professionally is what I call a win-win situation. I deliver a high level of performance and demand that from my teams. I thrive in an environment where I have to make decisions and deliver results. Having a higher emotional intelligence I find it easy to collaborate and communicate. I take the lead and build inter team competence by demanding respect and trust. These standards are non-negotiable for me. I work smart and provide reliable management so I will let you know if something is unrealistic, not based on data or simply not right. I do my best work in managing expectations, especially in crises. Going back in time in my over 15 years of experience I am truly grateful for the generous portfolio of successfully delivered projects that enlarged my IT landscape knowledge base. Starting with navigation software, going through media, smart home, financial services and even air transport, I can now say that I am at a real level of seniority in terms of IT management. If you have your own IT team or product and you demand high standards, please do contact me.

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Frequently asked questions

How long do QA projects normally take?

The length of a project depends on many factors, including the scope of your project and the technical complexity of it. When you post a freelance QA project request on Codementor, you’ll have the option to indicate when you’d expect the project to be completed. We suggest chatting with the interested developers to ensure both sides are on the same page. For more information on how to post a freelance QA request on Codementor, check out our article.

How much does it cost to hire a freelance QA developer?

We don’t charge anything when you post a freelance hiring request for QA developers! You’ll have the chance to determine what the budget for your project is when you post the request. You’ll only need to pay the developer if you’re 100% satisfied with their work. Please know that Codementor charges a small service fee when a developer completes the job.

What makes Codementor QA developers different?

We do a comprehensive technical and communications screen of all QA developers at Codementor. Our network includes book authors, popular open source contributors, top Stack Overflow users and engineers at top tech companies. In addition, to continually ensure the quality of our freelancers, we regularly check in on existing QA developers’ user satisfaction rates.

What happens if I’m not happy with the freelancer’s work?

As a platform, we strive to ensure you’re always happy with your QA project’s results. If you’re unsatisfied with the results, you can choose to get a refund for the project. Additionally, you can contact our support team should you need any further assistance with your project.

For more answers to frequently asked questions, see here.

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