Seasoned IT leader with over 20 years of experience managing IT services in corporate, multinational environments. As founder of Exinit, I deliver strategic technology consulting to financial and retail sectors — bridging the gap between IT operations and business objectives.
I'm Sebastian Zerniak — an Australian-Polish IT professional who has spent two decades building, managing, and optimising IT services for multinational corporations. From coordinating 600+ users across EMEA and the Middle East at Ingersoll-Rand, to founding Exinit and delivering AI-driven solutions for major banks and retail chains across three continents, I bring a rare combination of hands-on technical depth and strategic business perspective.
I believe great IT service management isn't just about processes and tools — it's about people. Understanding what IT Service Owners, C-level executives, and end users truly need, then building the bridge between technology and business value. Whether it's reducing downtime by 67%, saving $4.2M through cost optimisation, or making ITIL processes that people don't hate — I deliver results that matter.
Australian & Polish
Engineer — Systems & Networks
ITIL 4, BMC Remedy, SLA
Black Belt
Deep technical knowledge combined with strategic business acumen, delivering IT services and solutions that drive measurable results.
Designing and implementing ITIL-aligned IT service management processes including Service Operation, Service Enablement, Service Level Management, Incident and Change Management for enterprise environments.
Managing SLAs, transparent KPI reporting, IT budgeting and cost optimisation across multi-regional organisations. Making numbers tell stories and budgets make sense.
Developing intelligent systems for predictive analytics, process optimisation, anomaly detection and automated decision-making in banking and retail operations.
Architecting and managing enterprise-scale cloud and on-premise infrastructure with focus on scalability, performance optimisation, and cost efficiency across global deployments.
Implementing comprehensive security frameworks, GDPR compliance strategies, and risk mitigation protocols ensuring data protection and operational resilience.
Managing complex, multi-jurisdictional technology implementations across EMEA, Australia, and APAC. Coordinating between central IT and regional operations across time zones.
Transformative technology initiatives delivering measurable business impact across enterprise IT, banking, and retail sectors.
Architected an enterprise-wide IT service monitoring solution for a national retail chain with 200+ locations. Transparent KPI reporting, proactive incident management, AI-driven anomaly detection and predictive maintenance, reducing network downtime by 67%.
Implemented AI-driven IT cost optimisation for a major financial institution. Predictive analytics for cash flow modelling, budget optimisation, and automated resource allocation. 23% efficiency improvement and $4.2M annual savings.
Led implementation of a cross-border payment settlement platform for a consortium of financial institutions. Reduced settlement time from 3-5 days to under 2 hours, 41% cost reduction, $2.8B processed in year one.
Developed an advanced ML-based fraud detection system analysing transaction patterns in real-time. 94% detection accuracy with 0.3% false positive rate, preventing $18M in annual losses.
Comprehensive analytics platform integrating physical stores, e-commerce, and mobile data. AI-driven predictive inventory, dynamic pricing, and customer behaviour analysis. 31% conversion increase and 28% inventory cost reduction.
Measurable outcomes delivered across enterprise IT services, banking, and retail sectors.
Available for strategic consulting engagements and technology leadership roles.