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.