Resident Engineer

Job Title: Resident Engineer (Microsoft, AD & Infoblox DNS)

Location: Egypt – CFC

Employment Type: Full-Time

Job Description

We are seeking an experienced Core Infrastructure Engineer with strong hands-on expertise in on-premises Microsoft technologies. The role focuses on designing, operating, optimizing, and securing enterprise infrastructure services including Active Directory, Exchange Server (On-Prem), SCCM, DPM/Backup solutions, and Infoblox DNS. The ideal candidate will play a key role in ensuring high availability, security compliance, automation, and disaster recovery readiness for mission-critical services.

Key Responsibilities

Active Directory & Identity Services

• Perform daily operations and health monitoring for Microsoft Active Directory to ensure stability, performance, and security.
• Design, implement, and optimize Active Directory architecture in enterprise environments.
• Manage updates, upgrades, and patching of Domain Controllers and related AD components.
• Monitor and troubleshoot AD replication, DNS integration, authentication, and Group Policy issues.
• Enforce security policies using Group Policy Objects (GPOs), access controls, auditing, and logging.
• Apply CIS (Center for Internet Security) benchmarks and hardening standards to enhance AD security posture.
• Integrate Active Directory with other enterprise systems to ensure seamless identity synchronization and authentication.
• Develop and maintain PowerShell automation scripts for user provisioning, group management, and access control.
  
  

Microsoft Core Infrastructure

• Architect and manage on-prem Microsoft infrastructure solutions aligned with Microsoft best practices.
• Administer and support Exchange Server (On-Prem), including configuration, maintenance, and troubleshooting.
• Manage Microsoft Endpoint Configuration Manager (SCCM) for OS deployment, patching, and application delivery.
• Support system backup and recovery solutions such as DPM or equivalent enterprise backup platforms.
• Perform infrastructure health checks, performance tuning, and security hardening.
• Provide advanced (L3) support and troubleshooting for complex infrastructure issues.
  
  

Disaster Recovery & Business Continuity

• Design, maintain, and support Disaster Recovery (DR) and High Availability (HA) strategies for core infrastructure services.
• Perform regular DR testing and coordinate with headquarters to ensure failover readiness.
• Ensure backup, restore, and recovery procedures are documented, tested, and validated.
  
  

Infoblox DNS Administration

• Administer and maintain Infoblox DNS/DDI infrastructure ensuring high availability, performance, and security.
• Manage DNS records, zones, and subdomains across internal and external environments.
• Conduct regular health checks and performance monitoring using Infoblox dashboards and reporting tools.
• Implement DNS security features such as DNSSEC, RPZ (Response Policy Zones), and threat intelligence feeds.
• Troubleshoot DNS resolution issues, latency, and propagation delays across distributed environments.
• Monitor DNS query traffic and analyze logs to detect anomalies, misconfigurations, or potential threats.
• Support DNS backup, restore, and disaster recovery planning and validate failover scenarios.
• Coordinate with network and security teams to align DNS architecture with enterprise standards.
  
  

Documentation & Collaboration

• Develop and maintain technical documentation, architecture diagrams, and operational runbooks.
• Collaborate with internal IT, network, and security teams to align infrastructure operations with organizational standards.
• Contribute to infrastructure roadmaps, audits, and continuous improvement initiatives.
  
  

Requirements

• 5+ years of hands-on experience with Microsoft infrastructure technologies in enterprise environments.
• Strong expertise in Active Directory, Group Policy, DNS, DHCP, and Windows Server administration.
• Deep understanding of Exchange Server (On-Prem) architecture and operations.
• Proven experience with SCCM / Microsoft Endpoint Configuration Manager.
• Solid understanding of networking fundamentals and infrastructure security.
• Experience with high availability, disaster recovery planning, and enterprise backup solutions.
• Strong problem-solving, analytical, and documentation skills.
  
  

Preferred Qualifications

• Microsoft certifications such as Windows Server Hybrid Administrator Associate, MCSA, or MCSE.
• Hands-on experience with Infoblox DDI platforms.
• Strong PowerShell scripting and automation skills.
• Experience with virtualization platforms (VMware, Hyper-V).
• Exposure to hybrid identity and infrastructure scenarios (Azure AD Connect, Azure Arc).
• Strong communication skills and ability to work effectively in cross-functional teams.
  
  

Location: Cairo - NQEGY, Cairo, Cairo, Egypt