Yurii Rohulia - Ruby Developer

Q: Where is Yurii based?

Yurii is based in Košice, Slovakia .

Q: What languages does Yurii speak?

Yurii speaks the following languages: English (Advanced), Ukrainian (Intermediate) .

Q: How many years of experience does Yurii have?

Yurii has at least 7 years of experience. During this time, Yurii has worked in at least 1 role and for 6 different companies . The average length of individual experience is 1 year and 3 months . Note that Yurii may not have shared all experience and actually has more experience.

Q: What is Yurii's latest experience?

Yurii's most recent position is Ruby Developer at Instaffo .

Q: What companies has Yurii worked for in recent years?

In recent years, Yurii has worked for Instaffo , Velory , BC Gateways , and Teamvoy .

Q: Which industries is Yurii most experienced in?

Yurii is most experienced in industries like Information Technology (IT) and Banking and Finance .

Q: Which business areas is Yurii most experienced in?

Yurii is most experienced in business areas like Information Technology (IT) , Product Development , and Project Management . Yurii also has some experience in Quality Assurance (QA) .

Q: Which industries has Yurii worked in recently?

Yurii has recently worked in industries like Information Technology (IT) .

Q: Which business areas has Yurii worked in recently?

Yurii has recently worked in business areas like Information Technology (IT) , Product Development , and Project Management .

Recommended expert

Košice, Slovakia

Experience

Jun 2024 - Nov 2025

1 year 6 months

Ruby Developer

Instaffo

Implementing REST API with 100% tests coverage
Code review
Integrate third party services
Implementing microservice for CV generation using LaTeX
Technologies: Ruby, Rails, Grape, RSpec, MySQL, LaTeX, Kubernetes

Jan 2023 - Jun 2024

1 year 6 months

Ruby Developer

Velory

Designing and implementing GraphQL API with 100% tests coverage
Code review
Integrate third party services
Integrate Typesense search engine
Technologies: Ruby, Rails, GraphQL, RSpec, PostgreSQL, Heroku, Circle CI, Typesense

Mar 2020 - Jan 2023

2 years 11 months

Ruby Developer

BC Gateways

Shifted the application's architecture from decentralized nodes to centralized SaaS
Changed the data model to remove data duplicates in the data exchange hub
Designing and implementing RESTful API
Lead people to reach objectives & deadlines. Experience with a whole life cycle of the software development process
Bare metal servers setup
Building PoC or standalone services
Integrate third party services
Designing and implementing project/database architecture from scratch
Code review
Technologies: Ruby, Rails, Trailblazer, RSpec, PostgreSQL, Docker, GitLab CI/CD, AWS, Hyperledger Burrow

Feb 2020 - Mar 2020

2 months

Ruby Developer

Buying Show

Feature development on legacy codebase
Team leadership & mentorship for less experienced team member
Technologies: Ruby, Rails, HTML, CSS, JavaScript, RSpec, PostgreSQL, AWS Elastic Beanstalk, GraphQL

Oct 2018 - Feb 2020

1 year 5 months

Ruby Developer

Bitspark

Bitcoin/Ethereum/Bitshares chains integration
Microservices development using Elixir
Was involved into crypto exchange, DEX bridge development
Designing and implementing RESTful API
Technologies: Ruby, Rails, HTML, CSS, JavaScript, RSpec, PostgreSQL, Docker, GitLab CI/CD, AWS, Capistrano, NGINX, Elixir, Phoenix, BitShares DEX websockets RPC, Ethereum RPC, Bitcoin RPC

Aug 2018 - Jun 2024

5 years 11 months

Ruby Developer

Teamvoy

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (7.5 years) and Banking and Finance (1.5 years).

Information Technology

Banking and Finance

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (7.5 years), Product Development (7.5 years), Project Management (3 years), and Quality Assurance (1.5 years).

Information Technology

Product Development

Project Management

Quality Assurance

Summary

I have experience across the entire software development lifecycle, including unit, functional, and integration testing. I’ve developed, maintained, and debugged Ruby- based applications and designed and implemented both RESTful and GraphQL APIs. My background also includes a variety of DevOps-related tasks such as working with Docker, setting up bare-metal servers, managing AWS infrastructure, and configuring CI. I follow established best practices and coding conventions (including security standards), yet I remain flexible and adaptable. I’m comfortable working with legacy codebases that lack tests as well as with modern stacks that have full test coverage. I actively share knowledge with my teammates and enjoy mentoring less experienced developers. I’m committed to continuously improving both my technical and soft skills.

Skills

Ruby
Ruby On Rails
Restful Apis
Graphql Apis
Postgresql
Git
Software Development
Javascript
Docker
Ci/cd
Nginx
Aws

Languages

English

Advanced

Ukrainian

Intermediate

Education

Sep 2015 - Jun 2019

Lviv Polytechnic National University

Software development · Lviv, Ukraine

Profile

Created

January 2026

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Yurii based?

Yurii is based in Košice, Slovakia.

What languages does Yurii speak?

Yurii speaks the following languages: English (Advanced), Ukrainian (Intermediate).

How many years of experience does Yurii have?

Yurii has at least 7 years of experience. During this time, Yurii has worked in at least 1 role and for 6 different companies. The average length of individual experience is 1 year and 3 months. Note that Yurii may not have shared all experience and actually has more experience.

What roles would Yurii be best suited for?

Based on recent experience, Yurii would be well-suited for roles such as: Ruby Developer.

What is Yurii's latest experience?

Yurii's most recent position is Ruby Developer at Instaffo.

What companies has Yurii worked for in recent years?

In recent years, Yurii has worked for Instaffo, Velory, BC Gateways, and Teamvoy.

Which industries is Yurii most experienced in?

Yurii is most experienced in industries like Information Technology (IT) and Banking and Finance.

Which business areas is Yurii most experienced in?

Yurii is most experienced in business areas like Information Technology (IT), Product Development, and Project Management. Yurii also has some experience in Quality Assurance (QA).

Which industries has Yurii worked in recently?

Yurii has recently worked in industries like Information Technology (IT).

Which business areas has Yurii worked in recently?

Yurii has recently worked in business areas like Information Technology (IT), Product Development, and Project Management.

What is Yurii's education?

Yurii attended Lviv Polytechnic National University for Software development.

What is the availability of Yurii?

Yurii is immediately available full-time for suitable projects.

What is the rate of Yurii?

Yurii's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.