Hello, I have over 5 years of experience in JavaScript and Node.JS. This skills allow build any type and complexity web apps from regular web sites to big services (include clustered systems). If you have some problem or some wishes with your JavaScript project I can help you implement it. Also, I have strong knowledge in computer science, which allow me write and read code in different programming languages (like C/C++, C#, PHP, +more). Sincerely, Valentin.