Oleksandr P — Senior Architect Full-Stack RoR Engineer

Expertise in Full Stack Web.

Last verified on March, 2026

Core Skills

Bio Summary

8 years of professional expertise in IT industry;
8+ years using Ruby on Rails framework and Rails ecosystem;
5+ years using JavaScript; (Angular JS, React JS)
Experience in databases: PostgreSQL, Mongo DB;

Technical Skills

Programming Languages	Kotlin
Android Libraries and Tools	Android Studio, Kotlin
JavaScript Frameworks	AngularJS, React
Ruby Libraries and Tools	RubyMine
Ruby Frameworks	Ruby on Rails
Java Frameworks	Spring
Databases & Management Systems / ORM	MongoDB, MySQL, PostgreSQL, Query, SQL
UI Frameworks, Libraries, and Browsers	Bootstrap, CSS, HAML, HTML
Third Party Tools / IDEs / SDK / Services	Android Studio, IntelliJ IDEA, RubyMine, Sublime Text, WebStorm
Version Control	BitBucket, Git
Operating Systems	Debian, Ubuntu
Other Technical Skills	IDE, OS X

GoldAvenueJuly 2019 - Now

Create and implement features, services for web application.

Technologies: Ruby, Rails 5, PostgreSQL, HTML, CSS, JS, AWS, Onfido Social project

GeekhubAug 2019 - Now

Mentoring, lecturer Ruby on Rails.

OngosaDec 2018 - June 2019

Create and implement features for web application.

Technologies: Ruby, Rails 5, PostgreSQL, HTML, Slim, CSS, JS

Mill Oct 2018 - Dec 2018

Develop API

Technologies: Ruby, Rails 5, PostgreSQL

StentCare Oct 2018 - Dec 2018

Create Social Network application.

Technologies: Ruby, Rails 5, JS, ReactJS, HTML, HAML, CSS, PostgreSQL

Razborki Aug 2018 - Oct 2018

Develop API (Ruby on Rails).

Create Android mobile application from scratch.

Technologies: Ruby, Kotlin

Feb 2018 - Jan 2019

Develop API (on Spring Framework), front-end (on Vue.js), android mobile application. Technologies: Java, Kotlin, JS, Vue.js, HTML, CSS

Oct 2017 – Feb 2018

Implement web part of a React-Native application.

Technologies: JS, ReactJS, HTML, CSS, Bootstrap.

500FriendsApril 2015 – Nov 2017

Create and implement features for web application front-end, back-end, API. Implement translations.

Technologies: Ruby, Ruby on Rails (3.2.x), HTML, HAML, CSS, JS, JQuery, AJAX, SQL, MySQL.

BestBuy July 2017 – Oct 2017

Create and implement features for web application front-end, back-end, API. Technologies: Ruby, Ruby on Rails (4.0.x/5.1.x), HTML, HAML, CSS, JS, JQuery, AJAX, SQL, MySQL.

Gwap Mobile, Feb 2015 – April 2015

Create and implement features for web application front-end.

Technologies: AngularJS, HTML, JS, JQuery.

Timesheets, Jan 2015 – April 2015

Create web application front-end and back-end.

Technologies: Ruby, Ruby on Rails (4.2.x), HTML, HAML, CSS, JS, JQuery, AJAX, SQL.

OSMP, Jan 2015 – April 2015

Create web application front-end and back-end.

Technologies: Ruby, Ruby on Rails (4.1.x), HTML, HAML, CSS, JS, JQuery, AJAX, CoffeeScript, SQL.

Compono, Oct 2014 – 2015

Create and implement features for web application back-end. Build API. Technologies: Ruby, Ruby on Rails (4.0.x), HTML, HAML, CSS, JS, JQuery, AJAX,

CoffeeScript.

SCA-Central, July 2014 – Feb 2015

Create web application front-end and back-end. Build API.

Technologies: Ruby, Ruby on Rails (4.0.x), HTML, HAML, CSS, JS, JQuery, AJAX, SQL, Google Chart.

Tame The Time, Jun – Dec 2014

Create web application front-end and back-end.

Technologies: Ruby, Ruby on Rails (4.1.x), HTML, CSS, Bootstrap, JS, JQuery, AJAX.

State License, Jun 2014

Create and implement features for web application back-end.

Technologies: Ruby, Ruby on Rails (3.2.x).

WP-Farm, May - Jun 2014

Helped to create web application front-end and back-end.

Technologies: Ruby, Ruby on Rails (4.1.x), HTML, CSS, Bootstrap.

How to hire with Upstaff

1

Talk to Our Talent Expert

Our journey starts with a 30-min discovery call to explore your project challenges, technical needs and team diversity.

2

Meet Carefully Matched Talents

Within 1-3 days, we’ll share profiles and connect you with the right talents for your project. Schedule a call to meet engineers in person.

3

Validate Your Choice

Bring new talent on board with a trial period to confirm you hire the right one. There are no termination fees or hidden costs.

Why Upstaff

Upstaff is a technology partner with expertise in AI, Web3, Software, and Data. We help businesses gain competitive edge by optimizing existing systems and utilizing modern technology to fuel business growth.

Real-time project team launch

<24h

Interview First Engineers

Upstaff's network enables clients to access specialists within hours & days, streamlining the hiring process to 24-48 hours, start ASAP.

x10

Faster Talent Acquisition

Upstaff's network & platform enables clients to scale up and down blazing fast. Every hire typically is 10x faster comparing to regular recruitement workflow.

Vetted and Trusted Engineers

100%

Security And Vetting-First

AI tools and expert human reviewers in the vetting process is combined with track record & historically collected feedbacks from clients and teammates.

~50h

Save Time For Deep Vetting

In average, we save over 50 hours of client team to interview candidates for each job position. We are fueled by a passion for tech expertise, drawn from our deep understanding of the industry.

Flexible Engagement Models

Custom Engagement Models

Flexible staffing solutions, accommodating both short-term projects and longer-term engagements, full-time & part-time

Unique Talent Ecosystem

Candidate Staffing Platform stores data about past and present candidates, enables fast work and scalability, providing clients with valuable insights into their talent pipeline.

Transparent

$0

No Hidden Costs

Price quoted is the total price to you. No hidden or unexpected cost for for candidate placement.

x1

One Consolidated Invoice

No matter how many engineers you employ, there is only one monthly consolidated invoice.

Ready to hire Oleksandr P
or someone with similar Skills?

Book a call with Oleksandr P

Start Hiring