Aidan Casey
@aidancasey
Vice President of Engineering driving reliable, secure, and scalable global SaaS platforms.
IrelandWhat I'm looking for
I am an engineering leader with 15+ years building and scaling global SaaS organisations, accountable for product, platform, SRE, and security engineering across Ireland, EU, and the US. I have led organisations of up to 130 engineers and presented regularly to boards on platform modernisation and technology risk.
As an executive owner, I have sustained 99.99% uptime for large multi-tenant SaaS environments (~400,000 MAU), embedded secure SDLC and shift-left security practices, led incident response as incident commander, and governed annual engineering spend of $15M+ while reducing cloud costs by 25%.
I excel at delivering predictable roadmap execution, modernising platforms (EC2 to Kubernetes, monolith to microservices), driving FinOps improvements, and aligning engineering strategy with product and commercial objectives to accelerate delivery and maintain strong security and compliance postures.
Experience
Work history, roles, and key accomplishments
Head of Engineering
Teamwork.com
Jan 2020 - Present (6 years 2 months)
Executive owner of Product, Platform, SRE, and Security engineering for a global B2B SaaS platform; led 80–130 engineers and sustained 99.99% uptime for ~400,000 MAU while reducing cloud spend by 25% and governing $3–5M hosting and $10–15M payroll.
Built and led a greenfield R&D engineering organisation (40+ engineers) to deliver cloud-native enterprise SaaS products, launching two products and implementing secure SDLC and reliability controls for high-volume telemetry analytics.
Chief Technology Officer
Wavebreak Media
Jan 2016 - Jan 2018 (2 years)
Technology lead during transition to SaaS; delivered a SaaS platform to market in under nine months and re-architected core systems to double throughput and reduce delivery time by 60%.
Head of Engineering
MYOB
Jan 2012 - Jan 2016 (4 years)
Owned platform strategy and architecture for multi-product SaaS serving 1.2M+ businesses; led migration from legacy desktop to multi-tenant cloud, modernised systems for high availability, and supported IPO operational readiness.
Education
Degrees, certifications, and relevant coursework
Trinity College Dublin
Bachelor of Arts (Hons), Mathematics
Completed a Bachelor with Honours in Mathematics at Trinity College Dublin.
Trinity College Dublin
Bachelor of Arts (Hons), Mechanical Engineering
Completed a Bachelor with Honours in Mechanical Engineering at Trinity College Dublin.
Tech stack
Software and tools used professionally
Availability
Location
IrelandAuthorized to work in
Job categories
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