Yevhenii Karpenko

Senior Software Engineer

United States13 yrs 1 mo experience

Most Likely To SwitchHighly Stable

Key Highlights

Expert in Ruby on Rails with extensive API integration experience.
Proven track record of improving application performance.
Strong background in managing remote teams and projects.

Stackforce AI infers this person is a Backend-focused developer with expertise in Fintech and SaaS industries.

Contact

Skills

Core Skills

Ruby On RailsApi IntegrationMarket ResearchServer ManagementMeteor Js

Other Skills

CSSCapybaraCode RefactoringCommand PromptContinuous IntegrationContract ManagementData EntryGitGreat communications skillsJIRAJSONJavaScriptPerformance OptimizationPostgreSQLProofreading

Experience

13 yrs 1 mo

Total Experience

2 yrs 3 mos

Average Tenure

3 yrs 9 mos

Current Experience

Guidewire software

2 roles

Senior Software Engineer

Jul 2025 – Present · 11 mos · Remote

Senior Software Engineer

Sep 2022 – Jul 2025 · 2 yrs 10 mos · Remote

Hazardhub (we're hiring!)

Senior Ruby on Rails Developer

May 2018 – Sep 2022 · 4 yrs 4 mos · Madison, Wisconsin, United States · Remote

A project devoted to calculating risks for insurance companies. https://hazardhub.com , https://freehomerisk.com/
Wrote the integration with external service provider's API
Speeded up the average response timing for API from 2.6sec to 0.3sec
Wrote a lot of tests, since the project had only few.
Finished the custom websites for customers which used our services via API.
Most of the time – the only developer on the project

Ruby on RailsAPI IntegrationTestingPerformance Optimization

Defog (defog.io)

Meteor Developer

Oct 2016 – Feb 2017 · 4 mos · San Francisco, CA · Remote

Worked in a small (3 persons) team on the creating of the stackoverflow analog using meteor js

Meteor JSTeam Collaboration

Fasterthanlight

Ruby on Rails Developer

Jun 2016 – Sep 2016 · 3 mos · Kyiv, Ukraine · Remote

A project with Rails api + web interface.
An application for ordering the services in Honk Kong using mobile app and website.

Ruby on RailsWeb Interface Development

Elegant solutions

Director

Apr 2015 – Dec 2018 · 3 yrs 8 mos · Chernihiv, Ukraine · On-site

Digital ticketing industry. Organization the workflow of the company: * Researching the market of internet providers
Selecting best options for the company.
Preparing and signing the contracts for services
Controlling the linux-based servers workload and stability

Market ResearchContract ManagementServer Management

7pikes

Ruby on Rails Developer

Nov 2013 – Sep 2015 · 1 yr 10 mos · Moscow, Russia · Remote

Pharmacy oriented project.
About 2000 chef nodes (clients) with multiple rails servers (db/db-replica/web-interface)
Worked in a team containing ~15 developers, dba, support, qa...
At first worked on problematic pharmacies (bad deployment process, problems with syncing documents etc).
Improved the parsing and syncing services.
Wrote a lot of tests using Rspec

Ruby on RailsTesting

Mediacatalog

Ruby on Rails Developer

Apr 2013 – Nov 2013 · 7 mos · Moscow, Russia · Remote

Mostly in charge of data-entry workload.
Working on XLS feeds reading to DB, crawlers, etc.
Refactored some legacy code.

Data EntryCode Refactoring

Seatquest

Chief Data Manager

Jan 2009 – Sep 2012 · 3 yrs 8 mos · Chicago, Illinois, United States · Remote

In charge of proofreading/editing all published web content
Developed test script for in-house website testing
Served as the interconnect between software engineers and data entry team
Developed, trained, supervised and directed an outsourcing data entry team (up to 7 people)
Worked directly with the customers

ProofreadingTesting