Mark Fitzgerald
Lead (Staff) Engineer, Acting Team Lead, Acting Product Lead at Xero
Old Toronto, Ontario, Canada
Summary
👤
Senior🎓
Top SchoolMark Fitzgerald is a seasoned lead/staff software engineer with 10+ years of experience delivering large-scale, production-critical systems across fintech, SaaS and e-commerce. Currently acting as Team and Product Lead at Xero/Hubdoc, he blends hands-on architecture and coding with roadmap planning, stakeholder negotiation and cross-team technical due diligence. His career spans deep backend work (data extraction pipelines, Kafka, Elasticsearch, Redis), front-end and mobile product stewardship, and cloud-native deployments on Kubernetes and AWS. Notable impacts include automating document data extraction into accounting workflows, cutting RDS costs by two-thirds through query optimization, and migrating session storage to Redis to enable higher velocity shipping. He’s equally comfortable prototyping integrations and running rigorous test strategies to support continuous deployment, and has a background in academic-grade computational research (M.Math, University of Waterloo) that informs his system-level thinking. Based in Toronto, he pairs pragmatic engineering with a long track record of guiding teams through complex migrations and acquisitions.
10 years of coding experience
22 years of employment as a software developer
Bachelor of Engineering Electrical Engineering, Bachelor of Engineering Electrical Engineering at Memorial University, Newfoundland and LabradorMaster of Mathematics (M.Math) Computer Science, Master of Mathematics (M.Math) Computer Science at University of Waterloo
French
Stackoverflow
1,249reputation
464kreached
53answers
0questions
Github Skills (25)
javascript10
css10
html10
commonjs9
compiler9
zero-configuration8
nodejs7
whitespace6
xml6
oracle6
oracle-sql-developer6
foreign-keys6
sql6
windows6
python6
Programming languages (5)
Github contributions (5)
markafitzgerald1/simulate-cribbage-games
Jul 2020 - Jul 2026
Simulate and analyze cribbage games between two players.
Contributions:12 reviews, 13 PRs, 552 pushes in 6 years 1 month
playersgamescribbageanalyzesimulate
markafitzgerald1/cribbage-trainer
Aug 2022 - Jul 2026
Two-player cribbage discard and play improvement tool.
Contributions:34 reviews, 334 PRs, 733 pushes in 3 years 11 months
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