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Brisbane, Australia
Justin Kilimnik is an Associate Partner in the global EY organization’s Digital Engineering service, where he leads large‑scale transformation programs typically focused on Defense & National Security solutions. He currently serves as Lead Architect for one of the largest and most complex IT modernisation efforts in Australia.
He previously ran the Solution Architecture service at EY and led the Digital Solution Review process across Asia-Pacific handling all major digital deals. Justin has designed high‑security, mission‑critical systems for defense, border protection, emergency services, energy, aviation and social services. Prior roles include senior technical leadership positions across enterprise architecture, software engineering and cloud modernization.
In 2026, he was recognized as a Distinguished Technologist by the global EY organization.
How Justin is shaping the future with confidence
Justin shapes the future with confidence by architecting secure, scalable and intuitive technology environments that protect national interests and help enable critical public‑sector missions. His work on defense system modernization, cross‑border trade transformation, high‑security gateways and next‑generation applications helps governments adopt advanced technology with clarity and resilience.
He is equally committed to elevating technical community at EY. Through mentorship, solution reviews and hands‑on technical leadership, he helps emerging architects build the confidence and capability to lead complex programs. By bringing together cloud knowledge, security engineering and modern integration services, he supports organizations to strengthen mission readiness and equips EY teams to provide technology that endures.
