George Duff
Developer Lead at Zen Internet
Leeds, England, United Kingdom
Summary
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SeniorGeorge Duff is a results-driven Developer Lead with over a decade of hands-on experience building and managing high-performing engineering, DevOps, and support teams across SaaS and cloud-hosted platforms. He has repeatedly aligned technology strategy with business goals—delivering rapid launches, tightening SLAs from 70% to 95%+, and driving cost and performance improvements across large estates. Comfortable across the stack, he has overseen Ruby on Rails, React, GraphQL and SQL projects, led cloud operations on GCP and Azure, and architected automation tools using PowerShell, Node.js and React. His background includes running 24/7 mission-critical services for thousands of users with proven disaster recovery and uptime discipline (claims of six-nines availability at scale). Beyond delivery metrics, George is skilled at reorganising teams, mentoring talent into leadership, and embedding ISO and audit-ready processes. Based in Leeds, he brings a pragmatic blend of engineering, service management and operational leadership that turns complex requirements into reliable, auditable systems.
10 years of coding experience
6 years of employment as a software developer
Polish
Github Skills (9)
phantomjs7
chrome6
browser5
javascript4
electron4
automation3
selenium3
webdriver3
browser-automation2
Programming languages (1)
Github contributions (5)
TheTechy/jslists
Apr 2016 - Sep 2018
A small javascript library for creating and managing dynamic collapsible lists
Contributions:31 commits, 1 PR, 31 pushes in 2 years 4 months
TheTechy/ultree
Sep 2018 - Feb 2020
Contributions:1 release, 25 commits, 19 pushes in 1 year 5 months
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