LOUGHLIN McSWEENEY · DUBLIN · IRELAND
I'm a systems thinker who turns complex commerce problems into architecture that scales.
Former Senior Solutions Engineer at Shopify, with 15+ years in code and an M.Sc. in Digital Forensics. Now moving deeper into systems design and architecture.
01 / ABOUT
As a former Senior Solutions Engineer at Shopify, I advised mid-market and enterprise merchants and their technical leaders on commerce architecture, integrations and Stripe-powered payments. I also led the merchant AI Advisory programme for Shopify's Professional Services team.
Before Shopify, I spent six years leading engineering at Milk Bottle Labs, Ireland's first Shopify Plus agency. I built custom apps for Shopify using its GraphQL and REST APIs, optimised checkout and inventory management for high-volume mid-market and enterprise merchants, and integrated stores with Shopify Payments and Stripe, as well as ERP systems and marketing tools.
In 2019, I completed an M.Sc. (Hons) in Digital Forensics at University College Dublin which shapes how I think about compliance, data protection and security systems.
02 / EXPERIENCE
- 2025 — 2026
Senior Solutions Engineer
Shopify
Lead solution architect for mid-market and enterprise merchants across ERP, payments, billing and tax. Developed and led the merchant AI Advisory programme, helping merchants put AI to work in their day-to-day store operations.
- 2018 — 2025
Lead Full Stack Engineer
Milk Bottle Labs
Led the team building custom Shopify apps, checkout and inventory systems for high-volume merchants, integrated with Stripe, ERPs and marketing tools.
- 2015 — 2018
Full Stack Engineer
The Impart Lab
Developed a ticketing platform that processed over €2.5M through Stripe, and led internal CSR and payments projects for Bank of Ireland and Warner Records (Ireland).
- 2011 — 2015
Senior Developer
practice&Theory
Lead developer on Ireland's first crowdfunding website, Fundit.ie, which raised over €4M online for arts projects in Ireland. Design and development services for Yahoo! UK & Ireland, Heineken and Live Nation.
- 2005 — 2011
Developer
ChoiceCuts
03 / TECHNOLOGIES
- Languages
Ruby, Python, PHP, JavaScript
15+ years building production software across back end and front end, from web applications and integrations to checkout and payments systems.
- Frameworks & Libraries
Ruby on Rails, Laravel, React
Full stack web applications, APIs and interactive front ends, from first prototype through to high-volume production.
- Front End
CSS, Liquid, Figma
Strong command of vanilla CSS (Grid and Flexbox layouts, responsive design, custom properties) alongside utility frameworks like Tailwind. Liquid for Shopify templated storefronts. 4+ years of Figma for prototyping and design.
- Containers
Docker, Kubernetes
Containerised applications and orchestration, from local development environments through to production clusters.
- Hosting & Cloud
AWS, Azure, Google Cloud, Heroku, DigitalOcean
Managed platforms and cloud infrastructure, choosing the right level of control for each project.
- Deployment
CI/CD pipeline design & implementation
End-to-end pipelines covering automated testing, builds and releases.
- Architecture
Systems & integration design
ERP, payments, billing and tax integrations, designed for reliability and scale. Informed by a forensics background in security, compliance and data protection.
04 / EDUCATION
- 2017 — 2019
M.Sc. (Hons) Digital Investigation & Forensic Computing
University College Dublin
- 1999 — 2003
B.Sc. Information Technology
Technological University Dublin
05 / CONTACT