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 (32)
javascript10
build-configuration10
css10
switch9
typescript9
commonjs9
html9
compiler9
versioning8
nvm8
zero-configuration8
nodejs7
management7
whitespace6
xml6
Programming languages (5)
Github contributions (5)
markafitzgerald1/cribbage-trainer
Aug 2022 - Mar 2025
Two-player cribbage discard and play improvement tool.
Contributions:4 reviews, 225 PRs, 469 pushes in 2 years 7 months
markafitzgerald1/simulate-cribbage-games
Jul 2020 - Dec 2024
Simulate and analyze cribbage games between two players.
Contributions:466 pushes, 4 branches in 4 years 5 months
playersgamescribbageanalyzesimulate
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