Witali Jahn

Senior technology leader with 20+ years of international experience leading IT infrastructure, operations, cloud, cybersecurity, and governance in regulated and mission-critical environments. Proven track record in modernising enterprise IT landscapes, strengthening resilience, and improving service quality, operational stability, and delivery performance across complex international organisations. Experienced in leading international teams and managing multi-provider ecosystems, ensuring secure, reliable, and scalable IT operations aligned with business, compliance, and regulatory requirements. My background combines strategic leadership with strong operational execution across hybrid infrastructures (Azure, AWS, on-prem), service delivery, cybersecurity, and scalable IT operating models. Recognised for building high-performing, multicultural teams and translating business and technology requirements into resilient, secure, and effective IT environments. Core strengths: • IT Infrastructure & Operations – global IT environments, service delivery, SLA/KPI governance, operational stability • Cloud & Transformation – hybrid architectures, modernisation, automation, scalable platforms • Cybersecurity & Governance – SOC, SIEM, Zero Trust, IAM, regulatory compliance • Leadership & Delivery – international teams, vendor management, budget ownership, executive stakeholder collaboration Currently open to senior leadership opportunities across Head of IT, IT Infrastructure & Operations, Service Delivery, Cloud, Cybersecurity, Governance, Director-level roles, and selected transformation or consulting environments where I can contribute to stability, modernisation, and business-aligned execution.

Led the global IT infrastructure and security organisation across up to eight international locations, with full responsibility for strategy, operations, and an annual budget of ~€4M. Delivered a modern hybrid IT landscape (Azure, AWS, on‑prem) and introduced a SASE‑based secure access architecture, including the transition from MPLS to direct internet access (DIA) across European sites to improve performance, reduce costs, and prepare the network for Zero Trust. Successfully executed a major data centre transformation, relocating the primary DC to the DR site and building a new DR location — significantly improving availability, reducing operational costs, and strengthening resilience. Strengthened cyber resilience by implementing and operating SOC/SIEM capabilities and advanced endpoint protection. Continued and expanded the optimisation of provider and leasing contracts initiated in the previous phase, ensuring full 24/7 SLA coverage, improved vendor accountability, and uninterrupted service delivery during ongoing transformation activities. Managed and developed international teams and multi‑provider environments, ensuring reliable service delivery through SLA governance, escalation management, and ITIL‑based process optimisation. Collaborated closely with executive leadership, compliance, auditors, and ISO representatives to maintain regulatory alignment with BaFin, CSSF, CAA, and FMA requirements. Ensured operational stability and secure transitions during the company’s insolvency phase through service consolidation, provider realignment, risk mitigation, and continuity planning — maintaining uninterrupted operations throughout. KPIs: >99.9% availability, faster incident response & remediation, improved security posture, mission‑critical projects delivered on time & budget. Employment ended due to company closure following insolvency proceedings.

Led the global IT infrastructure strategy and defined the enterprise-wide IT roadmap, driving major transformation initiatives across Europe and the Middle East. Oversaw large-scale modernisation programmes including On‑Prem → VaaS migration, Modern Workplace rollout and scaling, and multiple site relocations. Initiated the optimisation of provider and leasing contracts to improve cost efficiency, strengthen vendor performance, and ensure SLA‑aligned service delivery. Defined and implemented advanced network and security strategies including SD‑WAN, SASE, Fortinet, and Checkpoint NGX. Initiated and led the design and early-stage implementation of a global SOC, integrating SentinelOne and partnering with an external SOC provider. Introduced Microsoft Entra ID as a cornerstone of the organisation’s identity and access management modernisation, enabling Zero Trust and advanced conditional access policies. Prepared the foundation for the rollout of CATO SASE and SentinelOne, progressing from initial planning to enterprise-wide deployment readiness. Directed and mentored an international team of 8+ specialists while coordinating external service providers to deliver complex, enterprise-scale infrastructure and security initiatives. KPIs: optimised service quality, stable infrastructure, consistent on-time project delivery.

Led global IT infrastructure initiatives and cloud integration programmes (Azure, AWS), driving the organisation’s transition toward modern, scalable, and secure architectures. Executed multiple data centre relocations and infrastructure modernisation projects, improving availability, performance, and operational efficiency across international sites. Implemented hybrid security architectures and conducted early SASE pilot projects, laying the groundwork for later enterprise-wide rollouts. Drove the initial implementation of Modern Workplace concepts during the proof‑of‑concept phase. Introduced and integrated modern platforms and services including Azure AD, Dell Avamar, Mimecast, SeppMail, Ivanti Pulse Secure Connect, and Thycotic SecretServer (PAM). Built and developed international teams through mentoring, coaching, and structured capability development. Provided hands‑on leadership in migrations, cloud projects, and major incident resolution. KPIs: high availability, smooth cloud migration, efficient project execution.

Built and administered global IT infrastructures, data centres, VPN/remote access environments, and high‑availability solutions across multiple international sites. Executed data centre migrations, site integrations, and infrastructure expansions, ensuring stable operations and seamless transitions during organisational growth phases. Managed heterogeneous server and virtualisation landscapes (Windows, Linux, Novell/NetWare, Solaris, VMware vSphere/ESX) and directory services (Novell, Windows AD). Implemented and operated enterprise backup and storage platforms (Veritas, NetBackup, Dell/EMC DataDomain, Tintri, NetApp) and security solutions (McAfee, TrendMicro, Cisco, WatchGuard, Checkpoint, MobileIron). Delivered secure messaging and perimeter services (GroupWise, Exchange, Postfix, Squid Proxy, TrendMicro IWSS/IMSS) and operated complex network and data centre environments (3Com, HP/Aruba, Cisco, MetroNode Storage, DR management). Provided secure remote access via WatchGuard and Juniper SSL VPN and ensured reliable monitoring and service operations using Nagios, PRTG, HP OneView, OTRS, and Matrix42. KPIs: stable systems, secure remote access, efficient backup processes, smooth site integration.