Andrew Tierney
Chief Executive Officer at CastleSoft
Greater Newcastle Area United Kingdom
Summary
👤
Senior🎓
Top SchoolAndrew Tierney is the founder, CEO and CTO of CastleSoft with over three decades of software and leadership experience and a decade explicitly noted as senior-level experience. He has led delivery of high-impact enterprise solutions—from a BI reporting platform and a real-time database replication system to a migration to SAP—that generated measurable business outcomes such as an additional $250M in superannuation income for a client. Comfortable toggling between strategy, governance and hands-on engineering, Andrew has run cost-accountable development teams, automated complex integrations via C# and Microsoft Graph, and implemented large-scale data migrations and security-conscious systems for education and defence customers. He champions equality and pragmatic quality standards at CastleSoft, refusing to “ship junk” while keeping solutions affordable. Notably, his work has produced exceptionally compact, maintainable codebases (one project reduced by 90%) and includes automation of school IT processes at scale, moving millions of records through API-driven pipelines. Based in the Greater Newcastle Area (UK), he blends deep technical craft with corporate governance and procurement experience to deliver auditable, production-ready systems.
10 years of coding experience
22 years of employment as a software developer
Fujitsu UTS/M Administration and UNIX Network Administration & Relational Database Oracle TrainingBachelor of Mathematics with Computer Science, Bachelor of Mathematics with Computer Science at University of NewcastleBywater Quality Systems and Procedures Writing Course.Cost Account Management and Managing High Performance Training.Management for Information System/Technology Professionals (The University of New South Wales)
Github Skills (111)
firemonkey10
jwt-authentication10
scheduled-tasks10
jsonwebtoken10
pascal10
delphi10
chronometer10
asp-net-core-mvc10
automapper10
pattern9
jwt9
yaml9
rest9
visual-studio-extension9
api9
Programming languages (5)
Github contributions (5)
CastleSoft/uiXtra
Dec 2018 - Apr 2019
uiXtra and Bearer Authenticator REST
Contributions:9 commits, 2 PRs, 10 pushes in 4 months
authenticatorrestbearer
CastleSoft/fpspreadsheet
Apr 2020 - Apr 2020
Contributions:2 pushes, 1 branch in 1 day
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