User Acceptance Testing Specialists

Colleen Brown

Czech Republic

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Versatile full-stack conjurer fluent in HTML, CSS, JavaScript, React, Node.js, and the symphony of database orchestration. I craft digital experiences that transcend the mundane, merging art and technology seamlessly. As a dedicated full-time freelancer, I'm prepared to breathe life into your concepts, transforming them into captivating online narratives. Let's collaborate to construct a virtual journey that captivates users and stands as a testament to innovation in the digital realm.

• Hourly Rate$25 / Hr
• Total Earned$11360
• Experience8 Years

Zoe Galatas

Greece

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Hello, I’m an Innovative and result-oriented professional, having 8 years of experience in Solid Principles of OOP, Hybrid Application Development, and Web Application Development. Have experience with JavaScript, Typescript, Node.js, React.js, GraphQL, HTML, CSS, etc. Able to communicate effectively with both technical and non-technical project stakeholders. I have done work for businesses in various sectors including healthcare, finance, real estate, ecommerce, precious metals, and even cryptocurrency. I work closely with my clients to understand and meet my clients needs and believe in long-term partnerships with them.

• Hourly Rate$25 / Hr
• Total Earned$9323
• Experience8 Years

Jonas Bathelt

Austria

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Hi! I am a highly experienced full-stack developer with 8+ years of experience in building and deploying web applications. My skills include. ✅ Proficient in JavaScript, TypeScript, Node.js, NestJs, ExpressJs, PostgreSQL, React, and MongoDB ✅ Strong understanding of web design and user experience ✅ Experience with responsive design and cross-browser compatibility ✅ Strong experience with Git and other development tools ✅ Strong understanding of web architecture and performance optimization ✅ Proven ability to work in a collaborative and Agile environment ✅ Experience with AWS, Azure, or other cloud services for hosting and deployment ✅ Familiarity with GraphQL and REST API ✅ Experience with various front-end libraries and frameworks (e.g. Material-UI, Bootstrap, etc) ✅ Strong debugging and troubleshooting skills. If you want someone who is passionate and honest to work on your project, don’t hesitate to contact me.

• Hourly Rate$30 / Hr
• Total Earned$24525
• Experience8 Years

Marco Sowers

Lithuania

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I am Marco, a Full Stack developer. I have huge experience in web and mobile development. I love my work and the chellanges it brings. I am always ready for more possibilities to learn new things and work with creative people. I am qualifed and skilled in many developing tools, languages, frameworks such as: JavaScript/ Java Python, React, Laravel, PHP WordPress,Woocommerce Shopify, BigCommerce etc. Looking forward to meeting amazing minds here!

• Hourly Rate$30 / Hr
• Total Earned$69750
• Experience9 Years

Sara Becker

Netherlands

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Hi there! My name is Sara Becker. I am a professional web developer with more than 7 years of experience. I developed many web applications for different companies/clients. I do everything that is possible to write code clear which is easy to customize. I will do full stack custom as well as dynamic web development. My expertise: #Frontend:HTML,CSS,Javascript,React,Vue,TypeScript,Elm,JQuery,Angular,Swift,Bootstrap,HTML5,Balma #Backend:Javascript,PHP,Ruby,Python,Java,Rust,Solidity,Go,Kotlin,Node JS • Robust and effective communication • Results better than expectations • Work delivered on time. • Flexible work timings that suit my clients.

• Hourly Rate$25 / Hr
• Total Earned$12891
• Experience8 Years

Eric Celiker

Germany

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I am Eric. Full-Stack Developer with 8+ years of experience & expertise in high-quality, complex WordPress development, from custom theme designs to e-commerce and custom plugin development. I like doing complex high-quality websites. I can help you transform your personal or business concept into a successful website. I can be your one-stop contractor for all things related to developing a WordPress, Joomla, Magento site. From front-end designs that get noticed to unique widgets and plugins that get the job done, I can handle any challenge you throw my way. For the past few years, I’ve been involved with all sorts of clients, from personal bloggers to Professional Athletes, Universities, etc. I am always trying to find the best solution for clients about price and quality. Feel free to contact me using one of the buttons at the top of the page, and I'll do my best to get back to you ASAP. My best skills: ✅ Page Speed Optimization, I do easy 100 points on Google PSI for mobile ✅ High-quality frontend development ✅ Deep WordPress knowledge (plugins and themes creation or customization) ✅ High Javascript / jQuery (top 10% on Upwork) skill tests ✅ Ability to make complex and big systems ✅ Pixel-perfect PSD to HTML or WordPress slicing ✅ Good sense of design ✅ WordPress, Theme, Plugin development & customization ✅ Headless WordPress (WooCommerce) websites ✅ PSD to WordPress conversion ✅ Landing pages, B2B solutions on WordPress ✅ eCommerce (WordPress, Magento, WooCommerce) ✅ WordPress websites support and maintenance ✅ Server configurations and WordPress websites migration ✅ Fixing bugs, adding new options, functionality, redesign ✅ Website transfer , Webhosting , DNS, CDN, Server ✅ Website security and cleaning websites after hacking ✅ Gravity Forms, ACF, etc ✅ API integration with 3rd party ✅ Responsive Web Pages ( desktops / mobiles / tablets ) ✅ Cross-browser compatibility / W3C valid and semantic code and testing ✅ Twitter Bootstrap, HTML5 boilerplate, Media queries ✅ Domain and hosting management (Linux, Windows) ✅ Project management suites (Zoho, Teambox, Teambox, Trello, BaseCamp, etc) ✅ Version control (Git, SVN) ✅ A/B testing ✅ SEO ▶ Front-End: HTML, CSS, LESS/SCSS; JavaScript / jQuery / AJAX; CSS Framework Bootstrap, Tailwind, React.js, Next.js, Gulp,js / WebPack / Grunt ▶ Back-End: PHP / Python, SQL (MySQL, PDO, MySQLi, MongoDB); CMS (WordPress / Joomla), MVC PHP, PHP composer, xDebug ▶ Misc: Git / Bitbucket / GitLab, Photoshop / Adobe XD / Illustrator / Invision / Sketch, Nginx / Apache / Litespeed, Docker, Python, Node.js

• Hourly Rate$25 / Hr
• Total Earned$11396
• Experience8 Years