Senior Platform Engineer, Platform Engineering, Windows Active Directory, AD Engineering, PKI Engineer, Certificate Services, Identity and Access Management, IAM Engineer, PowerShell Automation, Infrastructure Engineer, Authentication Services, Enterprise IT, Windows Systems Engineer, Directory Services, GPO Management, Platform Reliability, Systems Automation, IT Security Engineering, Cloud‑Adjacent Infrastructure, Enterprise Operation. Piper Companies is seeking a Platform Engineer to support a company focused on modernizing enterprise infrastructure and strengthening identity, authentication, and certificate‑based security.