Dimitrios Xafis
Senior Systems & Infrastructure Engineer (Tier 3) @HP
Signup · Get unlimited contacts
WORK HISTORY
Senior Systems & Infrastructure Engineer (Tier 3) @HP
Berkheim, DE
Managed enterprise Active Directory and Group Policies, enforcing security baselines and executing TPM firmware/OS hardening across the organization. Performed security analysis to detect bypass techniques and propose remediation measures for system vulnerabilities. Delivered Tier-3 escalation support for Windows, networking and endpoint systems across 10+ EMEA countries, resolving complex issues and ensuring SLA compliance. Maintained Azure integrations and SCCM health/repair while orchestrating cloud and on-prem installations and OS deployments, ensuring reliable software delivery and minimal downtime for production PCs and industrial IT systems. Administered IAM operations in Active Directory/Azure AD, controlling access policies and strengthening the organization’s security posture. Held EMEA hardware authority for 10 countries, approving diagnostics and replacements of critical components and leading asset investigations for global teams.
EDUCATION
Elliniko Anoikto Panepistimio
Bachelor of Science - BSc, Computer Science
IEK DELTA 360
Diploma in Software Engineering (EQF Level 5), Computer Science / Software Engineering
Training Qualifications UK (TQUK) - Manchester (UK)
Advanced Professional Diploma, RQF Level 6 / EQF Level 6, Computer Systems Technology
2nd General Lyceum of Katerini – Greece
High School Diploma, Information Technology
ABOUT DIMITRIOS XAFIS
Senior Systems & Security Engineer operating across the EMEA region, architecting defense-grade posture and high-availability infrastructure. I transition traditional IT operations into hardened environments driven by strict measurement and risk reduction for enterprises of 2,500+ users.My core expertise includes:• Enterprise hardware & infrastructure: servers, storage, networking, virtualization, high-availability systems• Cloud & hybrid platforms: Architecting and maintaining hybrid enterprise environments (Azure, VMware, Proxmox) to ensure uninterrupted, multi-country operations.• Security Engineering: Enforcing strict system hardening, endpoint protection, and vulnerability mitigation protocols across enterprise Windows/Linux fleets.• Compliance & Risk: Executing ISO 27001 alignments and standardizing enterprise-wide Incident Response workflows.• Strategic Execution: Directing hardware and cloud resource consolidation to align IT infrastructure upgrades with continuous operational stability.Operational Philosophy:My baseline is binary: Μaximize infrastructure resilience and systematically mitigate operational risk. Whether standardizing enterprise hardware, enforcing endpoint protection, or aligning infrastructure with ISO 27001, the goal is measurable stability. Open to precise collaborations in Cybersecurity, Infrastructure Engineering, and Strategic Risk Management. Let’s build secure, high-availability systems that perform at scale.
This profile is compiled from publicly available professional sources. Unifers is not affiliated with or endorsed by LinkedIn. Request removal of this profile.