Artem Galtsev, Developer in Gatineau, QC, Canada
Artem is available for hire
Hire Artem

Artem Galtsev

Verified Expert  in Engineering

Full-stack Developer

Gatineau, QC, Canada

Toptal member since December 2, 2013

Expertise
PHPJavaScriptGitFull-stackEthereum Smart ContractMySQLUnixApacheCSSNginxJSONjQueryRedisLaravelBlockchainSymfony
Bio

Artem is a web developer and programmer with over 15 years of experience in the field. He enjoys taking part in exciting and challenging projects that enable him to apply and further his skills. Artem has been working for large companies and also as a freelance professional, and he is looking forward to taking on new projects.

Portfolio

PepsiCo
PHP, React, MySQL, Pimcore, Git, Azure
Crypto Prison Bears
Polygon, Blockchain, Ethereum, React, CSS, HTML, Node.js, MySQL, Solidity...
Youtube Music Copyright
PHP, Laravel, REST APIs, Ruby on Rails (RoR), Google APIs, Node.js

Experience

  • PHP - 10 years
  • MySQL - 9 years
  • CSS - 5 years
  • jQuery - 4 years
  • Laravel - 3 years
  • Symfony - 2 years
  • Ethereum Smart Contracts - 2 years
  • React - 1 year

Availability

Part-time

Preferred Environment

PhpStorm, MacOS

The most amazing...

...thing I've built is a website for a personal project that lets thousands of users arrange meetings for entertainment purposes.

Work Experience

Senior PHP Engineer

2023 - 2024
PepsiCo
  • Implemented and tested security fixes throughout the entire codebase. These enhancements fortified the system against vulnerabilities, ensuring a higher level of protection and compliance with security standards.
  • Assisted in decoupling the monolith architecture into separate microservices. This transformation improved system scalability, maintainability, and deployment efficiency, facilitating better resource utilization and performance.
  • Maintained and implemented additional features for the payment gateway service. These enhancements expanded the service's capabilities, improving transaction processing and user experience, and ensuring reliable and secure payment operations.
Technologies: PHP, React, MySQL, Pimcore, Git, Azure

Senior Blockchain Developer

2022 - 2022
Crypto Prison Bears
  • Developed unique smart contracts in Solidity for the Polygon (Ethereum compatible) network that implemented the actions and interfaces for NFT, staking, airdrops, market, decentralized autonomous organization (DAO), game mechanics, random number generation, etc.
  • Constructed the front end in React with Webpack and compression optimizations that resulted in quick loading of the website.
  • Implemented the project back end in Node.js that enabled to use of web3.js for server-generated scripts.
  • Helped design and shape the product in many parts of the project, such as initial ideas, code, artwork, etc.
Technologies: Polygon, Blockchain, Ethereum, React, CSS, HTML, Node.js, MySQL, Solidity, Web3.js, Random Number Generation

Senior Full-stack Developer

2020 - 2021
Youtube Music Copyright
  • Implemented features that helped improve the business model and increase the influence of the project.
  • Improved the accounting model and was responsible for monthly accounting reports.
  • Improved the architecture of the code and made it more reliable.
Technologies: PHP, Laravel, REST APIs, Ruby on Rails (RoR), Google APIs, Node.js

Senior PHP Engineer

2018 - 2021
Health Company
  • Developed and supported client websites using Symfony framework.
  • Implemented upgrades such as Flex, Webpack Encore, and higher versions of PHP and Symfony.
  • Implemented structural upgrades that improved the overall stability of the websites and made further development easier and faster.
Technologies: Unix, CSS, Full-stack, Git, JavaScript, MySQL, Twig, Symfony, PHP

Full-stack Engineer

2020 - 2020
Insurance Company (via Toptal)
  • Developed most of the front-end components for the client's new project.
  • Tracked and fixed bugs using Azure as a reporting tool.
  • Implemented back-end features in Symfony 4.3. Fixed and made improvements to the existing code.
Technologies: Amazon Web Services (AWS), Unix, CSS, Full-stack, Git, MySQL, jQuery, JavaScript, Symfony, PHP

Blockchain/Front-end Developer

2018 - 2018
VREX Lab (via Toptal)
  • Implemented DApp contracts on Ethereum blockchain. Tested contracts using Truffle and deployed to Rinkeby testnet.
  • Created a web front end for the contracts to be used in a bundle with Metamask.
  • Create a web back-end API with Lumen to be used by the web front end. Used MySQL.
Technologies: Amazon Web Services (AWS), Unix, CSS, Full-stack, Git, Ethereum Smart Contracts, MySQL, React, Lumen, PHP, Solidity

PHP Team Lead

2017 - 2017
Cryptocertified (via Toptal)
  • Managed a team of 5+ developers to create a web project for cryptocurrency traders that allows users to connect to crypto exchanges with API and apply trading strategies.
  • Implemented server and DB architecture for the project on AWS.
  • Interviewed and helped hire new developers to the team.
  • Kept track of the progress and made sure new ideas were properly introduced and integrated with the project.
Technologies: Amazon Web Services (AWS), Amazon EC2, Unix, CSS, Full-stack, Git, Cryptocurrency, Blockchain, MySQL, React, Lumen, PHP

Senior PHP Engineer

2014 - 2016
Social Network Company (via Toptal)
  • Developed and supported client websites using Laravel framework.
  • Implemented a high-load project with over 10 million emails sent daily. Developed and optimized a MySQL database structure that could easily handle such a load.
  • Created an internal inbox monitor tool using IMAP protocol that was able to track email deliverability of four different email service providers.
Technologies: Unix, CSS, Bootstrap, Symfony, Laravel, Subversion (SVN), Apache, HTML, jQuery, JavaScript, MySQL, PHP

Senior PHP Developer

2013 - 2014
Mom.com
  • Developed a service from designed layouts using a modified Yii framework.
  • Designed and optimized a MySQL database for high-load usage. To further increase productivity, I used Redis and Memcached for the most used pages and queries.
  • Perfected my skills in regular expressions by helping my colleagues solve encountered problems.
Technologies: CSS, Unix, Memcached, Redis, Subversion (SVN), Git, NGINX, Apache HTTP Server, HTML, jQuery, JavaScript, Smarty, MySQL, Yii, PHP

Senior PHP Developer

2011 - 2013
Badoo
  • Improved and supported an invitation system that was used via email.
  • Implemented and maintained the back-end of a push notification system that would deliver messages to iPhone and Android devices in high-load batches (over 30 million messages daily).
  • Implemented and maintained an SMS notification system that would deliver messages to all countries of the world with a deliverability rate of 90%.
  • Created an important testing framework for different email types.
  • Used Git to work with the code and taught my colleagues to better understand Git workflow.
Technologies: CSS, Unix, Git, NGINX, HTML, JavaScript, MySQL, PHP

Project Manager and Web Developer

2009 - 2013
Funfix
  • Created an entertainment website as a personal project allowing users to post, comment, and rate each other.
  • Implemented a notifications module allowing users to see new activity related to their content.
  • Developed a scalable events module enabling users to view the activity of other users on the site.
  • Created a friends module allowing people to create social groups within the website.
Technologies: CSS, Subversion (SVN), Apache, Redis, HTML, jQuery, JavaScript, Smarty, MySQL, PHP

Project Manager and Web Developer

2009 - 2013
Advert-control
  • Organized and developed the service that would help bloggers get paid for their posts.
  • Managed a team of three people (a designer, a front-end developer, and a back-end developer) to successfully complete the project within the allocated time frame.
  • Implemented a RRD framework that can measure and draw graphs representing various statistical variables. Used this to help identify weak links in the business model.
  • Integrated different services including Twitter, Facebook, Youtube, PayPal, etc. using their API.
Technologies: CSS, Subversion (SVN), Apache, Redis, HTML, jQuery, JavaScript, Smarty, MySQL, PHP

Web Developer

2009 - 2011
Yandex
  • Developed multi-functional reports for Yandex.Metrika service in Perl.
  • Supported and improved the RBAC system for a Yandex.Direct service using MySQL stored procedures.
  • Added language support for the entire service.
  • Used SVN to work with the code and taught my colleagues to properly create and merge branches.
Technologies: CSS, Subversion (SVN), Apache, HTML, JavaScript, MySQL, Template Toolkit, Perl

PHP Developer

2008 - 2008
XQ Studio
  • Created a registration and authorization module.
  • Tested the service for high loads.
  • Created an API for usage by other platforms.
Technologies: MySQL, PHP

Script Developer

2005 - 2006
RIM
  • Maintained an internal website for RIM employees.
  • Created a script that could easily upload necessary software to a user's mobile device.
  • Created a web application for collecting statistical data.
Technologies: MySQL, JavaScript, Perl

Experience

Hodor

This is a Russian UGC entertainment website allowing users to post, comment, and rate each other. It accumulates approximately 3000 unique views per day.

Goodpeople

A social network for artists.

Education

2002 - 2007

Bachelor's Degree in Computer Science

York University - Toronto, Canada

Skills

Libraries/APIs

jQuery, React, Facebook API, VK API, REST APIs, Google APIs, Node.js, Web3.js

Tools

Git, Subversion (SVN), NGINX, Template Toolkit, Apache, PhpStorm, Apache HTTP Server, Adobe Photoshop

Languages

SQL, JavaScript, PHP, HTML, Solidity, CSS, XML, Java, XSLT, Perl

Paradigms

Model View Controller (MVC), Object-oriented Programming (OOP), Unit Testing, Scrum, Agile Software Development

Platforms

Windows, Ethereum, Apache2, Amazon EC2, MacOS, Blockchain, Unix, Amazon Web Services (AWS), WordPress, Pimcore, Azure

Frameworks

Laravel, Symfony, Smarty, Bootstrap, Yii, Lumen, Twig, Truffle, Symfony 2, Symfony 3, Ruby on Rails (RoR)

Storage

JSON, Redis, MySQL, Memcached

Other

Back-end, Back-end Development, Full-stack, Ethereum Smart Contracts, Cryptocurrency, Bitcoin, Polygon, Random Number Generation

Collaboration That Works

How to Work with Toptal

Toptal matches you directly with global industry experts from our network in hours—not weeks or months.

1

Share your needs

Discuss your requirements and refine your scope in a call with a Toptal domain expert.
2

Choose your talent

Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.
3

Start your risk-free talent trial

Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.

Top talent is in high demand.

Start hiring