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Senior Ruby on Rails Developer with 14+ years of experience contributing 2,600+ commits across enterprise healthcare applications. Specialized in modern Rails 8, Hotwire (Turbo/Stimulus), ViewComponents, and React, with proven expertise in building scalable admin interfaces, AI-powered features, and real-time data visualization systems. Strong focus on code quality, test-driven development, and team collaboration, maintaining 95%+ test coverage across all projects. Experienced across end-to-end release workflows, role-based access control, background jobs, caching strategies, and high-performance PostgreSQL querying for systems serving large user bases.…Senior Ruby on Rails Developer with 14+ years of experience contributing 2,600+ commits across enterprise healthcare applications. Specialized in modern Rails 8, Hotwire (Turbo/Stimulus), ViewComponents, and React, with proven expertise in building scalable admin interfaces, AI-powered features, and real-time data visualization systems. Strong focus on code quality, test-driven development, and team collaboration, maintaining 95%+ test coverage across all projects. Experienced across end-to-end release workflows, role-based access control, background jobs, caching strategies, and high-performance PostgreSQL querying for systems serving large user bases.

Shawn Kearney

Software Engineer, Web Developer, Programmer, +2

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Senior Ruby on Rails Developer with 14+ years of experience contributing 2,600+ commits across enterprise healthcare applications. Specialized in modern Rails 8, Hotwire (Turbo/Stimulus), ViewComponents, and React, with proven expertise in building scalable admin interfaces, AI-powered features, and real-time data visualization systems. Strong focus on code quality, test-driven development, and team collaboration, maintaining 95%+ test coverage across all projects. Experienced across end-to-end release workflows, role-based access control, background jobs, caching strategies, and high-performance PostgreSQL querying for systems serving large user bases.…Senior Ruby on Rails Developer with 14+ years of experience contributing 2,600+ commits across enterprise healthcare applications. Specialized in modern Rails 8, Hotwire (Turbo/Stimulus), ViewComponents, and React, with proven expertise in building scalable admin interfaces, AI-powered features, and real-time data visualization systems. Strong focus on code quality, test-driven development, and team collaboration, maintaining 95%+ test coverage across all projects. Experienced across end-to-end release workflows, role-based access control, background jobs, caching strategies, and high-performance PostgreSQL querying for systems serving large user bases.

Available to hire

Senior Ruby on Rails Developer with 14+ years of experience contributing 2,600+ commits across enterprise healthcare applications. Specialized in modern Rails 8, Hotwire (Turbo/Stimulus), ViewComponents, and React, with proven expertise in building scalable admin interfaces, AI-powered features, and real-time data visualization systems.

Strong focus on code quality, test-driven development, and team collaboration, maintaining 95%+ test coverage across all projects. Experienced across end-to-end release workflows, role-based access control, background jobs, caching strategies, and high-performance PostgreSQL querying for systems serving large user bases.

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Work Experience

Senior Software Engineer at MCNA

January 1, 2026 - May 1, 2026

Engineered end-to-end SIU CAF (Corrective Action File) Release workflow for dental claims processing, including controller logic, model layer, service object, cron integration, views, and migrations with RSpec coverage. Built ReleaseSiuCafService to orchestrate CAF release processing with dynamic parameterized SQL (WHERE clauses, GROUP BY/HAVING, multi-table JOINs across claims/entries/CARCs), EOB generation, and payment hold management with memoized hold-date lookups at provider/facility/claim levels. Implemented release pipeline handling both CAF cpt_code and CARC 699 ineligible_code pathways with test vs production modes, Claim.transaction wrapping for recoup/release operations, projected adjustment claim ID generation with uniqueness checking, and comprehensive Rails.logger error logging. Added CSV parsing pipeline with row-level error tracking and fail-fast validation. Refactored cron execution and integrated SIU CAF task processing with advisory lock transaction behavior. Impleme

Senior Software Engineer at Andros

December 1, 2020 - January 1, 2026

Contributed across two major Rails applications in healthcare credentialing workflows, maintaining consistent code quality over a multi-year tenure. Built an AI-powered segment query builder enabling non-technical admins to generate complex database queries via Claude API integration, reducing manual SQL queries by 80%. Developed a data confidence visualization system using Highcharts with interactive dashboards and real-time updates through Turbo Streams and modular ViewComponents for 10,000+ daily active users. Created and maintained a reusable UI component library with 100+ ViewComponents and a Tailwind CSS design system to improve UI consistency across 50+ pages. Built and integrated 45+ React components into the Rails platform for dynamic multi-step provider forms and outreach/attestation workflows. Implemented Hotwire patterns for real-time experiences and streamlined interactions. Led multiple Rails upgrade initiatives (5.x to 6.0, 6.0 to 6.1, and 8.0 to 8.1), resolving deprecat

Senior Engineer at FRDM

October 1, 2019 - March 1, 2020

Built v2 of a Rails application with refactored data models using clean architecture and SOLID principles for maintainability. Created interactive analytics visualizations using Highcharts and D3.js. Implemented responsive HiFi designs using HTML/CSS/JavaScript and collaborated with the CTO on product requirements. Utilized gems including Kaminari for pagination, Ransack for search, and date grouping to enhance application performance and user experience.

Senior Software Engineer at Cingo Solutions

October 1, 2018 - April 1, 2019

Developed consumer-facing features with Ruby on Rails, JavaScript/jQuery, HTML, and CSS with a focus on user experience. Wrote comprehensive RSpec tests using TDD practices. Completed complex ActiveRecord migrations with data transformations and association updates. Integrated third-party gems for PDF generation, Elasticsearch-based search, and Devise authentication.

Software Engineer at InEpt Software

February 1, 2011 - June 1, 2017

Wrote maintainable code in a team environment, implemented responsive designs, and modified software to correct errors and improve performance. Learned AngularJS and Ruby on Rails, and consulted with customers on project status and technical issues.