Pavel Volyntsev

My main language is PHP. I have been using it in my work since 2002. I know and can explain functional programming, object-oriented programming, design patterns, testing, and client-server technologies.

It's my everyday work. I can find solutions for you and explain you everything about your tasks in backend development.

I understand and I can explain those unclear examples of the JavaScript code that your found in books and in practice. Straight. To the letter. I can explain how to implement the necessary algorithms. I'll help set up the development and production environment. I'll help debug bad bits of code. I can help to create, debug, change the application on AngularJS, VuuJs, MeteorJS, jQuery and so on. The most important thing for you is that I can explain everything you need. Why this or that. A deeper knowledge of the architecture of the javascript applications you have to study, try, reserch on your own.

My passion is the application programming interfaces and data exchange. Ever since I learned about the possibility to combine several services together for a quick implementation of powerful solutions, I can not imagine how we can do without it. I have designed several SOA-based projects, both consumer and producer services. My latest work is the backend part of service https://icons8.com/ It has multi-layered RIA architecture and uses XML/JSON REST/RPC services https://api.icons8.com/ alongside with 12 other online services through HTTP: payment systems, analytics systems, online storages, media processing and other. In my practice I encountered great difficulties in using a variety of third-party producer services, which arise from the fact that services may become unstable and slow or even fail. I solve them all using polling and pushing, multi layer cache, queues, repeating retries, and other techniques.

My passion is the application programming interfaces and data exchange. Ever since I learned about the possibility to combine several services together for a quick implementation of powerful solutions, I can not imagine how we can do without it. I have designed several SOA-based projects, both consumer and producer services. My latest work is the backend part of service https://icons8.com/ It has multi-layered RIA architecture and uses XML/JSON-RPC services https://api.icons8.com/ alongside with 12 other online services through HTTP: payment systems, analytics systems, online storages, media processing and other. In my practice I encountered great difficulties in using a variety of third-party producer services, which arise from the fact that services may become unstable and slow or even fail. I solve them all using polling and pushing, multi layer cache, queues, repeating retries, and other techniques.

I have been using nginx for the last six years. I have created very sophisticated configurations for caching, proxying, load-balancing, rewriting, SSL and other issues. We'll study your nginx configuration to make clear how it works. I help you to create nginx configuration for your task.

It's my everyday work. I can find solutions for you and explain you everything about your DevOps tasks.