Hugh O'brien
Software Engineer at Toast
Dublin, Ireland
Summary
👤
Senior🎓
Top SchoolHugh O'brien is a software engineer based in Dublin with 10 years of experience building full‑stack and backend systems, currently focused on payment settlements at Toast. He combines a strong academic foundation—an honors BA in Economics & Business from Trinity College and an MSc in Computer Science from UCD—with hands‑on product delivery across cloud‑native, API‑first platforms and .NET/Azure stacks. Hugh has contributed to notable open-source projects such as Overleaf’s web frontend, where he implemented publish workflows, template integrations, and build tooling, demonstrating both front‑end and backend fluency. His background includes applied research and socially minded engineering—developing a Skype bot to assist refugee education—and data work on long‑run housing studies, reflecting an ability to move between research and production contexts. Colleagues know him for autonomy, pragmatic problem solving, and shipping end‑to‑end features that bridge UX, build infrastructure, and server logic.
10 years of coding experience
4 years of employment as a software developer
Bachelor's degree, Business and Economics, 2.1, Bachelor's degree, Business and Economics, 2.1 at Trinity College DublinMaster's degree, Computer Science, GPA: 3.62, Master's degree, Computer Science, GPA: 3.62 at University College Dublin
Github Skills (19)
javascript10
webpack10
front-end-development10
webpacker10
lessc10
react10
rest-api8
html8
mongodb8
css8
mongodb-database8
nodejs8
api-rest8
restful-api8
api-design8
Programming languages (7)
Github contributions (5)
overleaf/web
Feb 2018 - Aug 2021
The web front end for Overleaf, a web-based collaborative LaTeX editor
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:146 commits, 1 PR in 3 years 6 months
Contributions summary:Hugh primarily worked on the front-end of the Overleaf web application, implementing features related to the "publish menu" and V1 template integrations. Their contributions included setting up the initial publish modal, integrating React components, styling the UI with LESS, and configuring the webpack build process. Additionally, the user modified project models and controllers to integrate V1 template functionality.
latex-editorweb-front-endweb-basedoverleaflatex
overleaf/overleaf
Jul 2017 - Nov 2021
A web-based collaborative LaTeX editor
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:158 commits in 4 years 4 months
Contributions summary:Hugh primarily focused on enhancing the Overleaf web application. Their contributions included implementing a custom error handler for the Git Bridge service, adding and renaming template ID fields in the project model. They also worked extensively on the publish menu, involving webpack configuration, styling with Less, and integrating it with the query string. Furthermore, they created endpoints for fetching export status, zips, and implemented functionalities for confirming affiliations.
latex-editorweb-basedlatexcollaborativeeditor
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