Work Experience
Senior Ruby on Rails Engineer / Team Lead, Platform to provide telemedicine
Duration: 2 years 3 months
Summary: One of the biggest telemedicine providers. Healthcare project that allows users to get doctor appointments, consultations, and medicine receipts. It was built as a multiplatform solution to cover requirements of clients in the US, Canada, and Europe, using feature toggles for easy customization.
Responsibilities:
- Architecture and design;
- Knowledge sharing and coaching;
- Maintaining optimal workflow and team load;
- Requirements analysis and clarification;
- Estimation, prioritization, and distribution of tasks, iteration planning;
- Code development and unit testing;
- Product support and documentation maintenance.
Technologies: Ruby on Rails, React JS, REST, GraphQL, MySQL, Confluence, Scrum, Elasticsearch, Logstash, Kibana.
Senior Ruby on Rails Engineer, Platform provides law services
Duration: 6 months
Summary: Online platform for legal services in tenancy law, labor law, and telecommunications law. The platform facilitates enforcing legal claims conveniently and without financial risk for users
Responsibilities:
- Architecture and design;
- Knowledge sharing and coaching;
- Requirements analysis and clarification;
- Estimation, prioritization, and distribution of tasks;
- Code development and unit testing;
- Product support and documentation maintenance;
Technologies: Ruby on Rails, MongoDB, Confluence, Scrum.
Senior Ruby on Rails Engineer, DooMoo
Duration: 2 months
Summary: Customized CRM implemented using Ruby on Rails without any CRM gem. It allows customers to easily create content for baby products with structures supporting proper product selection
Responsibilities:
- Architecture and design;
- Requirements analysis and clarification;
- Estimation, prioritization, and distribution of tasks;
- Code development and unit testing;
- Product support and documentation maintenance.
Technologies: Ruby on Rails, JavaScript, RSpec.
Senior Ruby on Rails Engineer, On Running
Duration: 1 month
Summary: On Running is a company based in the Swiss Alps focused on revolutionizing running sensations with innovative shoes. The company sells products in over 50 countries and has multiple international offices.
Responsibilities:
- Architecture and design;
- Requirements analysis and clarification;
- Estimation, prioritization, and distribution of tasks;
- Code development and unit testing.
Technologies: Ruby on Rails.
Senior Ruby on Rails Engineer, Platform for rental deals
Duration: 7 months
Summary: A tool that facilitates rental deals by allowing users to sign documents remotely and make payments through various methods.
Responsibilities:
- Architecture and design;
- Requirements analysis and clarification;
- Estimation, prioritization, and distribution of tasks;
- Code development and unit testing;
- Product support and documentation maintenance.
Technologies: Ruby on Rails.
Middle Ruby on Rails Engineer, Crypto strategy analyzer platform
Duration: 7 months
Summary: Platform that allows users to make investments and earn profits using cryptocurrency by applying different investment strategies.
Responsibilities:
- Architecture and design;
- Requirements analysis and clarification;
- Estimation, prioritization, and distribution of tasks;
- Code development and unit testing;
- Product support and documentation maintenance.
Technologies: Ruby on Rails, Angular JS.
Middle Ruby on Rails Engineer, Charity online platform
Duration: 5 months
Summary: Platform supporting churches, schools, and nonprofit organizations by enabling fundraising campaigns, ticket sales for charity events, volunteer alignment, and donor communication with built-in engagement tools.
Responsibilities:
- Architecture and design;
- Requirements analysis and clarification;
- Estimation, prioritization, and distribution of tasks;
- Code development and unit testing;
- API documentation support.
Technologies: Ruby on Rails, React JS.
Middle Ruby on Rails Engineer, Online product building platform
Duration: 4 months
Summary: Tool that helps users build their own mobile business apps using ready-made business industry templates covering most business app needs, including secure cloud hosting, licenses, and system upgrades without requiring specialist hardware or software.
Responsibilities:
- Code development and unit testing;
- Product support and documentation maintenance.
Technologies: Ruby on Rails.
Middle Ruby on Rails Engineer, Rental search and analyzer project
Duration: 1 year 4 months
Summary: The world’s largest online search engine for rentals, allowing users to compare properties from top rental sites worldwide, covering over 10 million rentals in 150,000 destinations.
Responsibilities:
- Knowledge sharing and coaching;
- Requirements analysis and clarification;
- Estimation of tasks;
- Code development and unit testing.
Technologies: Ruby on Rails, React JS, Sidekiq (Pro, Enterprise), AWS services, Elasticsearch, DataDog.
Junior Ruby on Rails Engineer, VoIP service and smart security systems provider
Duration: 1 year 4 months
Summary: Product offering consumer and business products providing free and low-cost US and Canadian telephone calling and advanced cloud-based telephony services globally.
Responsibilities:
- Code development and unit testing;
- Product support and documentation maintenance.
Technologies: Ruby on Rails, React JS, HTML, CSS, Airbrake.
Education
- Master’s Degree in Computer Science and System Analytics
The Bohdan Khmelnytsky National University
Graduated in 2008.
Upstaffer since March, 2026
