Hi there. I have 4+ years of Node.js / JavaScript experience. I've been working on high-load projects last 3 years, so I do know about building Web Services, RESTful APIs, working with SQL or noSQL databases, logging, etc. I can start things from scratch using bare http(s).Server or use some cool framework like Express, Loopback, Koa, Hapi, whatever you like. I deployed Node.js apps using PM2, Forever, Puppet, Fabric. And also I'm really passionate about quality of code and API documentation, so another developer after me can get accustomed with code very fast.
P.S. I have time for part-time tasks, since my primary job allows me to participate in such projects.