I have more than 7 years of experience in server side software development. During this time I understood that there is no single "silver bullet" to implement everything and it's not a good approach to select one or two programming languages and try to use it for every type of task. Because one language is faster, other language is safer, third language has better ecosystem and ready to use libraries and frameworks for concrete tasks. The better option is to select best tool for each task, depending on top priorities of a project. That is why, I can develop and support backend software using the following programming languages: * Go I can support existing code which built on a framework, based on specified programming language or I can rewrite code from one language to another, if for example need to move backend from PHP to Node.js, or from Node.js to Java, or from Java to Go. Also I can mix different technologies together and integrate them in a single project to implement different sub-tasks and get the most profit from each of them. As a fond of classic software development books of Robert C. Martin, like "Clean Code" and "Clean Architecture" I am very careful about usage of third party frameworks and libraries, because third party framework is something that does not depend on me and any framework is a subject of change without respect to my plans. That is why I always try to stick to standard libraries of language and import as less third party code as possible. However, I developed and supported the projects, which based on or used the following frameworks and libraries (and many more smaller ones, not mentioned in the following list). * BeeGo, Revel I used the following hosting and cloud solutions: * Google Cloud Platform Also I can install and support applications on physical servers in data centers. I am a Linux Professional Institute GNU/Linux certified professional. For front end work I use React.js with Redux and JQuery. My Github profile and project portfolio below is showing a part of a projects in which I participated as a frontend, backend and full-stack developer.