John Realini

CIO / CTO | Enterprise Transformation | Cloud & Infrastructure Strategy | M&A Integration | Healthcare | AI-Ready Platforms | $100M+ P&L | Builder of High-Performance Tech Organizations

Greater Milwaukee

About

Enterprise CIO/CTO with 20+ years leading enterprise IT strategy, digital transformation, and large-scale infrastructure modernization across healthcare, private equity, and manufacturing. I build organizations that deliver measurable results — faster, leaner, smarter. Currently leading IT Architecture and Network/Telecom for Froedtert ThedaCare Health, a $6.5B academic health system (20 hospitals, hundreds of clinics). I manage a $200M+ technology portfolio spanning hybrid cloud (Azure, AWS), data center consolidation, cybersecurity, and large-scale M&A integration. My teams design and operate mission-critical infrastructure for clinical systems (Epic, AGFA, Citrix), ensuring high availability, security, and compliance. I lead with Speed, Execution, and Accountability (SEA Framework) — a culture and operating model proven to drive transformation in complex enterprises. Previously, I served as CIO/CTO for multiple private equity portfolio companies, delivering double-digit EBITDA growth through ERP consolidation, automation, and data-driven operating models. I’ve executed 15+ global acquisitions and built shared-services IT organizations supporting APAC, EMEA, and North America. I lead from the intersection of strategy, architecture, and execution — equally comfortable in the boardroom, the data center, or the M&A war room. Core Competencies: CIO / CTO Leadership • Enterprise IT Strategy • Cloud Architecture (Azure, AWS, GCP) • Infrastructure Modernization • Data Center Consolidation • Cybersecurity • M&A Integration • AI & Data Strategy • IT Governance • Agile Transformation • Leadership Development • Healthcare IT keywords: CIO | Chief Information Officer | CTO | Chief Technology Officer | IT Executive | Technology Strategy | Enterprise Architecture | Cloud Strategy | Cloud Transformation | Digital Transformation | Infrastructure Modernization | Data Center | Hybrid Cloud | Azure | AWS | GCP | Cybersecurity | Zero Trust | Network Architecture | Cisco ACI | ExpressRoute | SD-WAN | Epic Infrastructure | Healthcare IT | Hospital Systems | M&A Integration | IT Governance | IT Leadership | Agile | IT Operating Model | SEA Framework | Leadership Development | Executive IT Management | IT Director | IT Architecture | Enterprise Technology | Private Equity | EBITDA Growth | AI Strategy | Data Platform | Operational Excellence | Infrastructure Automation | IT Financial Management

Experience

  • Froedtert Health (Full-time · 4 yrs 2 mos)
    • Executive Director Enterprise Architecture and Integration
      Mar 2026 - Present · 4 mos

      In this system-level role, I lead enterprise architecture strategy and the execution of major infrastructure integration initiatives across a multi-region health system following merger activities. Operating within a Plan / Build / Run model, my team is accountable for enterprise planning and large-scale build execution, including data center consolidation, network modernization, cloud enablement, and core platform integration, while partnering closely with operations leaders responsible for run. Focused on increasing decision velocity, enforcing architectural discipline, and delivering measurable integration outcomes at scale.

    • Director IT Architecture, Interim Director Network Engineering and Telecom
      Sep 2024 - Mar 2026 · 1 yr 7 mos

    • Director of IT Architecture and strategy
      May 2022 - Oct 2024 · 2 yrs 6 mos

      Pioneering the adoption of emerging technologies, focusing on streamlining technology for scalability and security to enhance clinical, operational, and financial outcomes.

  • Chief Information Officer (CIO) at Primex Family of Companies
    Jun 2013 - May 2022 · 9 yrs

    Recruited to drive enterprise-wide technology transformation, to modernize legacy technology stack and to spearhead transition to a Cloud / DevOps / DevSecOps mindset. Guiding strategic vision and long-term strategy. Leading digital transformation across the organization: - Strategic leadership of technology delivery program supporting 3 global business units - Strategic program management and delivery of multi-million dollar investments in technology - Global Netsuite ERP and CRM implementation for 3 business divisions - Modernizing Analytics across the organization - Snowflake, Tableau - Process engineering and automation - Cloud migrations to Azure and AWS - Leading the Cybersecurity and regulatory compliance practices - Customer Experience (CX) process leader - Implemented Agile software development framework across the enterprise - Lead E-commerce technology practice (Magento Enterprise)

  • Director Of Information Technology at Chaney Instrument Co.
    Oct 2004 - Jun 2013 · 8 yrs 9 mos

    Created multi-year technology strategy and implemented new organization model and leadership team. • ERP Consolidation: Consolidated 4 ERP systems into a single global instance. Drove business process re-design across the enterprise to deliver consistency, predictability and operational efficiency. • Global Data Network: Designed and Built global MPLS data network met 98% uptime SLA • Global VoIP Network: Designed Cisco VoIP network globally (250K calls/yr.) • Demand Planning Automation: Integrated Material Resource Planning (MRP) with Business Intelligence (BI) and CRM to automate demand planning. • Cyber Security Program: Implemented PCI-DSS compliance, intrusion detection/prevention systems (IDPS), integrity monitoring/management systems and event aggregation and analytics. • Data Center Consolidation: Consolidated 3 global data centers into single, newly constructed complex reducing regional support headcount by 60% and associated hardware and software maintenance costs. Virtualized server infrastructure to reduce footprint by 50%. Mergers & Acquisitions (M&A): Merged 2 acquisitions into enterprise; Modeled conversion plans, created Special Action Teams, migrated data, and successfully integrated acquired systems with no disruptions.

  • Manager, Global Network Services at Scholle Corporation
    Dec 2000 - Sep 2004 · 3 yrs 10 mos

    Global Manufacturing Transformation: Architected 4 year global infrastructure replacement to drive manufacturing supply chain efficiency.