Kostiantyn

From Ukraine (GMT+3)

Full-stack Web DeveloperSenior

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19 years of commercial experience

Advertising

Automotive

Business intelligence

Cryptocurrency

Data analytics

Gambling

Job and career services

Recruiting

Dev tools

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Kostiantyn is looking for the first project with us, but we have verified and summarised the previous experience for you

Skills and seniority verified on Oct 12, 2021

Kostiantyn – Laravel, React, PHP

Kostiantyn is a highly experienced PHP developer with over 13 years of experience, starting from PHP 4 to the latest 7.4, and is knowledgeable about PHP 8. He has worked on gaming platforms, a job-hunting marketplace, and a multi-cloud platform. He is passionate about using updated language features.

Main technologies

Laravel

4.5 years

React

4 years

PHP

16 years

Additional skills

Ionic

Docker

Git

Nginx

PostgreSQL

Redis

Node.js

SQL

HTML

Tailwind CSS

Linux

Angular JS

AWS

REST API

Python

Symfony

CSS

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Potentially possible

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Experience Highlights

Senior Full-Stack Developer

Dec 2021 - Jun 20225 months

Project Overview

The Ultimate Data ToolKit for Data Collection. The proxy provider for web scraping and monitoring.

Skeleton

Responsibilities:

Implemented new features;
Optimized the slow code and queries where possible;
Cleaned up the codebase;
Removed useless dependencies;
Designed several new Rest-API;
Revised and improved security.

Project Tech stack:

PHP

Laravel

Docker

MySQL

openresty

Full-Stack Developer / Architect / DevOps

Mar 2019 - Dec 20201 year 9 months

Project Overview

The project is a legal online poker.

Skeleton

Responsibilities:

Communicated with the client to discuss requirements and provided estimates;
Created the templates according to the given design;
Customized template handling for marketing, copywriters, and SEO;
Managed GTM;
Designed the database structure to manage players and protect from fraud using phone/email validation;
Integrated with the game server using SOAP;
Added integration with the services to send/validate SMS/emails;
Created required plugins and jobs for the project;
Optimized performance on both front-end and backend;
Deployed to the cloud using custom images.

Project Tech stack:

PHP 7.4

OctoberCMS

Laravel

Redis

Openresty

Docker

Jelastic

PostgreSQL

Full-Stack Developer / Team Lead

Nov 2016 - Nov 20182 years

Project Overview

A marketplace for customers and employees to find a matching person/job, sign contracts, manage and report billable hours and send/receive payments using cryptocurrency.

Skeleton

Responsibilities:

Communicated with the client to negotiate requirements;
Provided estimates and reported the progress;
Managed a team of 3 developers and 1 QA;
Selected tech stack;
Researched and designed the architecture;
Developed the components;
Optimized performance;
Developed features: API and middlewares, JWT auth, custom components, live updates using websocket (Pusher), and multilingual support without page reloading.

Project Tech stack:

PHP 7.1

Laravel 5.5

React

PostgreSQL

Redis

Node.js

Nginx

Docker

Support Team Lead

Sep 2013 - May 20151 year 8 months

Project Overview

A cloud platform that facilitates developer's life while deploying.

Skeleton

Responsibilities:

Managed and taught a team of 3 support engineers;
Switched to 24/7 schedule;
Classified and reported major issues if they cannot be addressed by the support team;
Arranged training for new clients.

Project Tech stack:

Linux

Openvz

Networks

Keep in mind, the experience summary might exclude non-relevant projects

Education

1997

Automation and Management

not graduated

Languages

English

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