App Designers

Stefan Kovalev

Bulgaria

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Hi all! I am a Full Stack developer with 8 years of experience in Analyzing, Designing, Developing and Integrating Front-End & Back-End based applications.Used various ideas from distributed computing, large-scale design, real-time data processing, data storage, ML, and AI to solve challenging dataset problems. I have developed app integration with REST / SOAP and other APIs for Google Maps, social media logins, payment processors, and other services. Developed membership, event, and legal platform technology solutions, and automated internal processes. I have devised various custom responsive WordPress sites from design comps that included advanced WordPress features, such as Custom Post Types, Advanced Custom Fields, and WordPress Customize API. My skills are HTML5, CSS3, Javascript, Java, JQuery, XML, Python, C++, XPath, Microsoft Office Suite, PHP, SVN, Linux, Android, Windows, DNS, MySQL, Visual Studio, SQL, Wordpress, Bootstrap, Node.js, C#, MongoDB, Oracle, PostgreSQL, Perl, Scala, Figma, Canva, React, TypeScript, Django, Golang, Jquery, Vue JS. I will accept useful and diverting cooperations with great pleasure Best regards Stefan

• Hourly Rate$30 / Hr
• Total Earned$22645
• Experience8 Years

Alex Fernandez

Spain

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Hello, I’m a Full Stack Web Developer. I studied Information Technology at university, and since that time I have worked in a variety of web designing roles. I have worked for a variety of clients on several different types of projects. I can develop database and user compulsive web interfaces and templates, external web portals, creation of company intranet, and improving existing web applications and internal systems. My technical proficiencies include demonstrated expertise in HTML/HTML5, CSS/CSS3, PHP, Flash, SQL Server and a profound knowledge of JavaScript and C++. I also have a solid foundation in Express, AngularJS, and Node.JS. I am seeking opportunities to build websites from the ground up for you or your business.I also have some experience in the following areas: EDI, VBA, SQL, OOP, and software design and testing. Skills: Java 5/6/7 (JSE, Swing, CORBA, Web Services, etc.) - JEE5/6 (EJB3, JSF, Hibernate, etc.) - GWT, Spring, Struts, etc. - And other JSE/JEE-related frameworks - GlassFish, Tomcat, JBoss, Jetty, etc. - JME (CLDC 1.1, MIDP 2.0) and Android - Maven, Ant, etc. - Oracle, MySQL, PostgreSQL

• Hourly Rate$33 / Hr
• Total Earned$4830
• Experience9 Years

Mia Anderson

United Kingdom

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I am a highly qualified Full Stack Back and FrontEnd Expert with 10+ years of experience in web and application development using different databases (MySQL, PostreSQL, SQL Server). I have developed projects for many companies worldwide and local, both independently and in teams, cooperating with other developers and designers.

• Hourly Rate$30 / Hr
• Total Earned$0
• Experience10 Years

Sofia Raymond

Sweden

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Hi, I am Sofia, I'm a QA with 9+ years of experience in the testing of web and mobile software. Attentive to the details, and good at such testing approaches, and methodologies, as functional, non-functional, regression, black, grey box, UI, API, acceptance testing, and several others. I have identified and documented thousands of bug defects, designed test Suites, created and executed thousands of test cases. Skills: • Agile • Microsoft applications (Teams, Azure, Excel, Word, Outlook) • Azure • Scrum • CSS • HTML5 • JavaScript I am a Full Stack developer with nearly 10 years of experience. During my career, I have developed and designed hundreds of different projects. As a Full Stack developer focused on customer satisfaction, I manage all aspects of development from concept to requirements definition, design, launch, maintenance, and user support. I am highly skilled in designing, testing, and developing software. Languages: C/C++, Java, C#, .Net, SQL, HTML, CSS, PHP, Javascript, Java, jQuery, Angular, React, Bootstrap, HTML, CSS Applications: MS Visual Studio, Visual Code, Eclipse Database systems: MariaDB, MySQL, SQL, SQL Server, MongoDB, ExpressDB, Ingres Operating systems: Windows, macOS, Unix, Linux

• Hourly Rate$20 / Hr
• Total Earned$14289
• Experience10 Years

Küllo Smirnov

Estonia

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I have done Integration with 3rd party APIs across applications. I have created and maintained android service using Kotlin As a professional I have done Bug tracking with Kibana tools and Elastic Search. I have built a customer segmentation product using React, Redux, Spring Boot, and Spark which allows engineers to write Presto/SparkSQL queries to send messages to customer. I have created the Messaging Partner program to support technical and non-technical teams from across the organization in carrying out Messaging feature requests As a Full Stack Developer I have built and maintained WhatsApp Enterprise projects backend infrastructure to send and receive WhatsApp messages to engage customers in developing markets, also built an interactive SMS chatbot using Amazon Lex for Hack Day which can respond to questions with personalized recommendations. Skills include JavaScript, CSS, HTML, React, Redux, Mongo, Drupal, Spring, C++, C#, Angular, HTML5, CSS3, Bootstrap, JavaScript, jQuery, AngularJS, ReactJS, JSON, Node, PHP, Ruby on Rails, and Normalize.css ; MongoDB, SQL, and PostgreSQL, , Java, Jira, Drupal

• Hourly Rate$28 / Hr
• Total Earned$21908
• Experience8 Years

Dario Petrovic

Serbia

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For the past 8 years, I've worked as a full stack developer, having substantial expertise in both front-end and back-end development. From modest personal initiatives to huge business systems, I've worked on a variety of projects. My background has allowed me to deal with a wide range of technologies, including C#, Java, JavaScript, HTML5, CSS3, ASP.NET MVC, ASP.NET Web API, SQL Server, Entity Framework, jQuery, Bootstrap, AngularJS, Node.js, and others. My capacity to learn fast and my attention to detail are two of my greatest assets. I take pleasure in my ability to swiftly and effectively learn new technology. I'm also proud of my ability to build well-organized code that's simple to understand and maintain. Here are my skills : Programming Languages: HTML5, CSS3, Bootstrap, JavaScript, jQuery, AngularJS, TypeScript, ReactJS, JSON, Node, PHP, Ruby on Rails, Python, C#, Golang, Scala, Django CMS: WordPress, Drupal, Joomla, Magento, WooCommerce, OpenCart, Kentico, DPM, Perl, JSP Frameworks: Laravel, Ruby, Django, Spring, Express, Angular, React Databases: MongoDB, MySQL, PostgreSQL, Oracle, Microsoft SQL, MariaDB

• Hourly Rate$30 / Hr
• Total Earned$29300
• Experience8 Years