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Top freelance Testing developers available to hire
Seasoned Web Developer and Blockchain enthusiast with a proven track record in the IT and services industry. Expertise in Research, PHP, HTML, JavaScript, and Blockchain development, including Smart Contracts. Skilled in automation, application testing, and cybersecurity analysis for web and mobile apps.
I have a great passion for solving problems and can help people with various programming languages, databases, information systems, software related projects.
I’m Michael Ayoub, a Solution Architect and Innovation Leader with over 15 years of experience delivering complex, scalable, and secure technology solutions across fintech, banking, aviation, and enterprise platforms. I specialize in digital transformation, payment systems, enterprise architecture (TOGAF), and product development, with hands-on leadership across B2B, B2C, and microfinance ecosystems. Having held senior roles in companies like Sharjah Airport, Banque Misr, Fawry, and CashCall, I bridge business goals with cutting-edge technology, driving innovation, operational efficiency, and regulatory compliance. Passionate about aligning IT strategy with business value, I thrive in dynamic, cross-functional environments and continuously explore emerging tech to fuel growth and competitive advantage.
Currently working as Software Engineer 3 in **Google Deepmind**.
I have extensive experience in integrating AI on mobile via Gemini at Google with over 3 years.
Biggest challenge on mobile is the scalability and sustainability of the approaches that you should follow while working on any feature.
Apart from my dev experience, I am also a geek for competitive programming and have a very good grasp of *Algorithms and Data Structures*.
In addition, in my free time, I actively help students clearing their doubts on basics of Android, iOS, ObjC, Swift, C++, Java, DSA.
I have experience in Python for more than 10+ years. I have been using Python in Embedded systems. I have experience in Making Test setup for various Embedded device for automation testing.
I'm a senior fullstack JS developer. I am a team player and I love to learn new things and share my experience.
I have been working as a developer since 2009, mostly as a front-end.
Some of the things that I've made:
* Static webpages (freelance).
* Working as a support and developer engineer working closely with Customer Support team.
* Developing a new CRM to replace Salesforce in MercadoLibre (biggest e-commerce latam company)
* Developing a new UI Library in Wenance to share components between company apps.
I have +10 years of experience in HTML/CSS, Js, React and nodeJS
I am an adept **Full Stack Software Engineer and Architect** and with a wealth of experience in frontend, backend, and Data Structures and Algorithms (DSA) solution development. My expertise spans **clean architecture, TDD(test driven development), code reviews, debugging, and profiling**, enabling the delivery of high-quality solutions within constrained short timeframes.
I have worked and collaborated with numerous prominent global blue chip corporations, startups, and international clients. Additionally, have made substantial contributions to Pluralsight and Stack Overflow, boasting a reputation exceeding 37k+ and ranking within the top 0.30% of users on the latter platform.
Motto: Full refund in case of no help.
Discounts:
- Student discount is applied automatically.
• Senior software engineer, have worked as a Subject Matter Expert and lead with the primary role to develop features, solve complex bugs, architecture refinements, feature integration, and development.
• I intent to deliver a top-quality experience by delivering the most optimal solutions and guidance to enlighten the learners.
• I have helped many developers to fix critical bugs and implement complex features on the Codementor platform.
• Teaching is one of passing and I have helped numerous mentees on their journey to become successful developers in various fields such as web, native mobile, and big data.
• I have expertise in curating and simplifying the content to deliver the best experience with different analogies.
• I am deft at feature implementation, debugging, and refactoring.
If you have any questions, Feel free to reach out, looking forward to meeting you.
Hello! If you need help with game development, I'm here to help you find (and learn) effective techniques and solutions for your projects.
As a mentor, I can help you with **Technical Guidance** (assistance with coding, debugging, optimization), **Design Insights** (feedback on mechanics, level design, UI), **Asset Advice** (guidance on using time-saving assets/tools), and **QA** (thorough testing and bug tracking), among other topics.
I can answer questions on topics such as **Development Challenges** ("How can I optimize my game for better performance?"), **Design Decisions** ("How to improve the game UX?", "What mechanics can make my gameplay more engaging?"), and **Troubleshooting** ("Why is my game crashing on startup?", "Why is my game build failing?", "How do I fix this bug in my C# code?"), among other topics.
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Game and Software developer since 2010. I have 10+ years of experience with Unity, C#, and Game Design. I also have experience with Unreal Engine, Level Design, 3D Modeling, and Mobile Development.
I developed games for PC and Android. My background includes working on:
● SAK'D (2D metroidvania game, demo released on Steam)
● NekoSuki! ~ Kitty Love Adventure (action-adventure game, in development)
● Time Master (puzzle-platformer game, released on Steam)
● Baneville (an educational game for Brazilian schools)
I have knowledge and experience with:
● Unity, C#, async-await (UniTask), advanced programming concepts
● Unreal Engine 5, Blueprints, C++
● Godot Engine, RPG Maker, GameMaker, Ren'Py
● Game Design, Level Design, UI Programming, Game Optimization, QA
● Unity Addressables, Timeline
● Third-party assets and plugins: Platformer Project, Corgi Engine, ORK RPG Framework, Game Kit Controller, World Streamer 2, DoozyUI, RealtimeCSG, Rewired, Animancer, RealToon, Dialogue System for Unity, MicroSplat, MicroVerse, etc.
● Blender, VRoid Studio (3D Modeling, Rigging, Skinning, Animation)
● Photoshop, Krita, GIMP (Texturing, Image editing)
● Wwise Audio Middleware
● Generative AI: Stable Diffusion, ComfyUI, SwarmUI, NovelAI
● Mobile Development: Android (native), iOS (native), Flutter, Xamarin, Xamarin.Forms
● Kotlin, Swift, Dart, Java, Python
Results-oriented Senior Software Architect and Data Engineer with over 15 years of experience delivering scalable, production-grade data pipelines and high-performance solutions for Tier-1 financial institutions and startups. Expert in Python and cloud-native architectures, with a proven track record of optimizing ETL workflows, reducing system latency by up to 50%, and leading distributed engineering teams.
**Technical Skills**
* **Languages:** Python (Expert), SQL(Expert), KDB(Expert), K, TypeScript, Java, JavaScript, Golang, Erlang (Expert), C(Expert), C++, C#, Perl, Ruby.
* **Data & Cloud:** AWS, Terraform, Docker, Kubernetes, S3, SNS, Postgres, MySQL, MongoDB, Sybase.
* **Frameworks:** Django, Flask, FastAPI, React, Celery, BDD (Behave/Pytest-BDD), Pytest, Spring, RoR.
* **Methodologies:** DevOps, CI/CD, TDD, Agile, Observability.
Experienced Web Developer adept in all stages of advanced web development. Knowledgeable in user interface, testing, and debugging processes. Bringing forth expertise in design, installation, testing and maintenance of web systems. Equipped with a diverse and promising skill-set. Proficient in an assortment of technologies, including Javascript, ReactJS, NodeJS, HTML5 and CSS. Able to effectively self-manage during independent projects, as well as collaborate in a team setting.
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STEP 2
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STEP 3
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Frequently asked questions
How long do Testing 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 Testing 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 Testing request on Codementor, check out our article.
How much does it cost to hire a freelance Testing developer?
We don’t charge anything when you post a freelance hiring request for Testing 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 Testing developers different?
We do a comprehensive technical and communications screen of all Testing 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 Testing 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 Testing 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.