Senior Identity & Messaging Engineer

Cloud Infrastructure Engineer Planet Technologies, the Nation's leading Microsoft services provider to the public sector, is looking for a highly motivated individual to join our growing team as Cloud Infrastructure Engineer. In this role, you will be supporting impactful projects that make a difference for our country. The Senior Identity and Messaging Engineer is responsible for supporting, maintaining, securing, and enhancing enterprise identity and messaging services across on-premises and Microsoft cloud environments. This hands-on role administers and engineers Microsoft Active Directory, Microsoft Entra ID, Exchange Server, Exchange Online, and the hybrid services that connect them in a complex federal environment.

Qualification includes: Bachelor's degree in Information Technology, Computer Science, Cybersecurity, Engineering, or related field with 7 or more years of experience administering Active Directory in enterprise environments, including multi-domain or multi-forest architectures.5 or more years of experience administering Exchange Server, including hands-on responsibility for at least one Exchange hybrid deployment, and three or more years supporting Microsoft 365, Microsoft Entra ID, and Exchange Online. Experience supporting enterprise environments with 5,000+ users preferred. Senior-level experience supporting federal government customers onsite, with a demonstrated record of working effectively with government program managers, CIO staff, security officers, and contractors in professional, multi-vendor environments. Demonstrated knowledge of TCP/IP, routing, subnetting, Network Address Translation, VLANs, firewalls, DNS, PKI and certificates, SMTP, Kerberos, and LDAP. Proven ability to diagnose network-related authentication, directory synchronization, and mail flow failures using packet capture, port testing, and log analysis in environments with strict change control. PowerShell scripting and automation Microsoft 365 Administration Identity and Access Management (IAM) Certificate Services (PKI) Active Directory Federation Services (ADFS) Windows Server Administration Infrastructure: Windows Server (2003-2025), Active Directory / GPO, Hyper-V & VMware, DHCP / DNS / NPSSecurity & Compliance: DISA STIGs, Trellix EPO / HIPS, Vulnerability Scanners, (ACAS / Nessus) Systems Management: MECM / SCCM, Exchange Server (2003-2019), Microsoft Active Directory, Entra ID and Azure AD Connect, Domain Services (AD DS), Red Hat / Linux+, Orchestrator / PowerShellPreferred Qualifications Experience implementing Exchange Hybrid environments. Experience with Microsoft Defender, Microsoft Purview, and Microsoft Sentinel. Experience with CyberArk, Beyond Trust, or other Privileged Access Management (PAM) solutions. Experience supporting Zero Trust initiatives. Familiarity with virtualization technologies such as VMware or Hyper-V.Experience administering Microsoft 365 in GCC, GCC High, or DoD tenants, including government-specific endpoints, security controls, service limitations, and hybrid connectivity requirements. Experience with PIV/CAC authentication, federal Identity, Credential, and Access Management requirements, administrative forest or ESAE/Red Forest architectures, one-way trusts, shadow principals, bastion forests, or Microsoft Identity Manager Privileged Access Management. Familiarity with Active Directory consolidation, domain migrations, tenant-to-tenant migrations, Azure networking, TIC 3.0, Zero Trust network architecture, and cross-domain solutions.