Sean O'hara
Senior Software Engineer at Circle Medical
Montreal, Quebec, Canada
Summary
👤
Senior🎓
Top SchoolSean O'hara is a Senior Software Engineer based in Montreal with over 16 years of hands-on experience building full-stack web applications across React/TypeScript/Next.js and legacy frameworks like Ember.js and Ruby on Rails. He has led front-end efforts for consumer finance and publishing platforms, designing JavaScript SDKs and API-first solutions while shipping production-grade Next.js applications. As a consultant and technical lead he balances pragmatic system design with mentorship, helping teams adopt testing and upgrade strategies at scale. His open-source contributions to the Spree e-commerce platform show deep Rails backend know-how, particularly around migrations, API auth, and order/stock workflows. Comfortable operating as a long-term remote team member, he pairs entrepreneurial instincts (co-running a record label and building custom e-commerce stacks) with disciplined, TDD-influenced engineering.
16 years of coding experience
26 years of employment as a software developer
Bachelor of Arts - BA, Philosophy, Bachelor of Arts - BA, Philosophy at Concordia University
Github Skills (15)
database-migrations10
spreed10
activerecord10
ruby-rails10
spree10
database-migration10
rails10
api10
sql10
apidoc10
ecommerce10
migration10
ruby10
commerce9
testing9
Programming languages (6)
Github contributions (5)
spree/spree
Mar 2013 - Dec 2013
An open source eCommerce platform giving you full control and customizability. Modular and API-first. Multi-vendor, multi-tenant, multi-store, multi-currency, multi-language. Built using Ruby on Rails. Developed by @vendo-dev
Role in this project:
Backend Developer
Backend DeveloperContributions:24 commits in 8 months
Contributions summary:Sean primarily contributed to the backend of the Spree e-commerce platform. They addressed various bug fixes related to migrations, API authentication, and stock management. Their changes included improving cart page rendering, modifying state handling, and enhancing order-related functionalities. The contributions demonstrate an understanding of Ruby on Rails and its associated database interactions.
multi-sourceecommercemulti-languagespreecommerceshopware
sohara/sohara.com
Jan 2019 - Jan 2024
Personal static site based on Gatsby.js
Contributions:5 PRs, 20 pushes, 4 branches in 5 years
gatsbyreactstatic-sitegatsbyjsnetlify
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