08/24/2026 updated
Premium member
100 % availableIT infrastructure/Datacenter/Enterprise Architect/Cloud/DevOps
Tiflis, Georgia
Only remote
tbdAbout me
Over 20 years of experience in IT infrastructure and security, ranging from small businesses to large enterprises. Extensive background in system integration, hosting, and Active Directory environments. Implementing and securing complex Windows-based environments for international clients.
Active DirectoryMicrosoft AzureData CentersDevOpsHyper-VMicrosoft ServersWindows ServersScrum MethodologyAzure Active DirectoryServer AdministrationVirtualizationVMware VSphereAzure AutomationInfrastructure as Code (IaC)Backend
Enterprise Architect | Senior Software Engineer | Infrastructure Specialist
Personal Information
- Name: Heiko Unger
- Nationality: German
- Location: Georgia (GMT+4) / Available for Remote Work Globally
- Languages: German (Native), English (Fluent)
- Availability: US East Coast hours / European hours
Executive Summary
Enterprise Architect with over 20 years of expertise in Microsoft infrastructure and enterprise IT in Europe. Specialized in on-premise, cloud, and hybrid architectures with deep experience in Active Directory, Exchange, SQL Server, and Windows Server environments. Unique combination of comprehensive infrastructure knowledge and advanced software engineering capabilities. Developer of enterprise tools for security, automation, and infrastructure management.
Core Competencies
Infrastructure & Operations (20+ Years)
- Microsoft Ecosystem: Windows Server (2003-2025), Active Directory, Exchange, SQL Server
- Virtualization: Hyper-V (including Clustering), VMware vSphere, Storage Virtualization
- Backup & Disaster Recovery: Veeam, DPM, Azure Backup, Business Continuity Planning
- Enterprise Services: PKI, WSUS, SCCM, SCOM, Terminal Services/RDS
- Network & Security: Firewall Management, VPN, DNS/DHCP, Group Policies
Hybrid & Cloud Infrastructure
- Azure Services: IaaS, PaaS, Azure AD, Hybrid Scenarios
- Migration: On-Premise to Cloud, Exchange to O365, AD to Azure AD
- Hybrid Architecture: Azure Arc, Site-to-Site VPN, ExpressRoute
- Automation: PowerShell DSC, ARM Templates, Azure Automation
Software Development & Engineering
- Backend Development: Python (FastAPI, Flask), Node.js, .NET/C#
- PowerShell: Advanced Scripting, Module Development, DSC, Automation
- Databases: SQL Server (Administration, Always-On, Clustering), PostgreSQL
- API Development: RESTful Services, Integration, Microservices
- Security Tools: Threat Detection, SIEM Integration, Compliance Automation
Programming Languages & Frameworks
- Python: FastAPI, SQLAlchemy, pandas, asyncio, PyTorch/scikit-learn
- PowerShell: Advanced Automation, System Integration, Azure Management
- Node.js/TypeScript: Express, React, API Development, System Tools
- C#/.NET: ASP.NET Core, Windows Services, System Integration
- SQL: T-SQL, PL/pgSQL, Complex queries, Performance optimization
Infrastructure & Platform
- On-Premise: Windows Server, Active Directory, Exchange, SQL Server, DNS, DHCP
- Virtualization: Hyper-V Clustering, VMware
Security Implementations
- SIEM Rollouts and SOC integration
- AD Hardening following BSI and Microsoft best practices
- Zero-Trust Architectures in hybrid environments
- Incident Response and forensics support
Methodology & Work Approach
- Infrastructure as Code: Reproducible, versioned infrastructures
- Automation First: PowerShell, Python, API integration
- Security by Design: Threat modeling, least privilege, defense in depth
- Agile Infrastructure: SCRUM adaptation for infrastructure projects
- Documentation: Technical documentation, runbooks, knowledge transfer
Experience
Professional experience10+ years
Freelancer since2013
Languages
GermanNative speakerEnglishFluent
Project history
Über 20 Jahre in der IT Infrastruktur, in voller Auslastung tätig. Von der Planung über die Implementierung und Absicherung mit Back-up und recovery Konzepten, bis hin zur Migration und dem Betrieb bzw. Übergabe in Operations. Hybrid oder onPrem, Koordination und Projektmanagement. Eine Projektliste und Profil gibt es auf Anfrage.
System Management, Migration, Implementierung, Planung, Beratung
Azure
O365
Windows Server
Active Directory
Datenbanken
Security (Realtime Analyse, SIEM)
System Management, Migration, Implementierung, Planung, Beratung
Azure
O365
Windows Server
Active Directory
Datenbanken
Security (Realtime Analyse, SIEM)