Lorcan O'Neill
I design systems for a future where humans and AI build software together. I've spent 15+ years building distributed systems, cloud platforms, and large-scale software. Right now, the problems that interest me most sit at the intersection of software architecture and AI — how agentic systems change the way we build software, how engineering teams evolve, and what good architecture looks like when AI becomes another participant in the system.
Based in Dublin. Currently a Staff Engineer at Ahoy.
Experience
Ahoy
Staff EngineerEarly engineer at an AI-native CRM startup. Building agentic systems that observe deals, draft follow-ups, and prepare pipeline updates autonomously.
HubSpot
Staff Software EngineerWorked on HubSpot's global search — the universal search bar that lets customers find results across the entire platform.
Thrive Global
Principal EngineerHubSpot
Software Engineer → Staff EngineerEight years across reliability, reporting, ServiceHub, Academy, and partner tools. Built large-scale ingestion and query systems, led teams, and helped shape engineering culture. Started as a software engineer, ended as staff.
SkillPages
Software DeveloperBuilt email and correspondence systems and backend services on AWS. Worked across C# and Python on both Windows and Unix platforms.
Education
University College Dublin
2022 - 2024MSc Advanced Software Engineering · First Class Honours
University of Limerick
2006 - 2011BEng Computer Engineering