Sergei is available for hire

Sergei Peshkov

Verified Expert in Engineering

Software Developer

Voronezh, Voronezh Oblast, Russia

Toptal member since February 20, 2018

Expertise

Node.js Linux Git SQL MongoDB Express.js Redis Visual Studio Development C#PostgreSQL NoSQL Elixir GraphQL Golang

Bio

Sergei has worked for more than three years as a back-end developer of web applications specializing in Node.js with MondoDB/PostgreSQL. He is also proficient with Goland and Elixir.

Portfolio

AEGEE

PostgreSQL, MongoDB, Express.js, Node.js, Vue

Inlab LLC

Express.js, MongoDB, Redis, Node.js

Railsmob LLC

PostgreSQL, GraphQL, Node.js, Ruby on Rails (RoR), Ruby

Experience

Git - 5 years
Debian - 5 years
SQL - 4 years
Node.js - 3 years
MongoDB - 3 years
Express.js - 3 years
Redis - 2 years

Availability

Part-time

Preferred Environment

Git, Visual Studio Code (VS Code), MacOS

The most amazing...

...project I've worked on was creating the service that allows two mobile operators' users to subscribe to Kaspersky antivirus and manage their subscriptions.

Work Experience

Backend/Frontend developer

2016 - PRESENT

AEGEE

Implemented the microservice for managing events and their applications.

Technologies: PostgreSQL, MongoDB, Express.js, Node.js, Vue

Back-end Developer

2017 - 2018

Inlab LLC

Improved and supported the application for sending app-push and SMS notifications using Node.js and MongoDB.
Improved and supported the platform for sending web-push notifications.
Wrote a back-end that allows two mobile operators' users to subscribe to Kaspersky antivirus and manage their subscriptions.
Developed the back-end for face detection on photos using Node.js and Facenet.
Rewrote and refactored the tool that displays a report about the delivery status and devices in database for the app-push and SMS notifications service.

Technologies: Express.js, MongoDB, Redis, Node.js

Backend Developer

2016 - 2016

Railsmob LLC

Improved and supported the Ruby on Rails application for booking the time at stadium areas.
Created the GraphQL server that fetches data from MongoDB.

Technologies: PostgreSQL, GraphQL, Node.js, Ruby on Rails (RoR), Ruby

Experience

selenium-until-extra

https://github.com/serge1peshcoff/selenium-until-extra

I've extended the Selenium binding for Node.js and added some extra conditions that can be awaited upon (see README). I've done this mostly for my testing purposes, but I suppose that this will be probably useful for others, so I've made it open-source.

selenium-go-conditions

https://github.com/serge1peshcoff/selenium-go-conditions

I've implemented the explicit wait implementation in Golang's Selenium bindings (see this PR: https://github.com/tebeka/selenium/pull/91) and created the library to be used with that.

redis-lister

https://github.com/serge1peshcoff/redis-lister

I've written a tool that allows you to display the Redis values for some keys (can be specified in settings) in Node.js. I needed that tool for work, but I've made it open-source so it can be used by others.

oms-events

https://github.com/AEGEE/oms-events

I'm a member of the youth volunteer organization called AEGEE and one of the people who is developing our new website. It is being developed with a set of microservices that run within Docker. I maintain of one of the microservices, which is called oms-events and allows users to create events and manage them. (Please keep in mind that this is still WIP and some portions don't yet work correctly).

csfo-float refactor

https://github.com/balthazar/csgo-float/pull/7

I've implemented the error checking in this library as a PR.

Education

2012 - 2016

Bachelor's Degree in Mathematics and Computer Science

Voronezh State University - Voronezh, Russia

Skills

Libraries/APIs

Node.js, Restify, Vue, Selenium WebDriver, Socket.IO

Tools

Git

Languages

C#, SQL, Ruby, Elixir, GraphQL, Go

Frameworks

Express.js, Ruby on Rails (RoR), Phoenix

Platforms

Linux, Debian, Visual Studio Code (VS Code), MacOS

Storage

MongoDB, Redis, PostgreSQL, NoSQL

Paradigms

Functional Programming

Collaboration That Works

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