Systems Administrator

Key Responsibilities

• Manage and maintain production server environments, ensuring maximum uptime and performance

• Administer Microsoft Entra  (Azure Active Directory) including user provisioning, group policies, and conditional access policies

• Configure and manage Gusto/Entra n for automated employee onboarding and off-boarding workflows

• Administer on-premises Active Directory Domain Services (AD DS) infrastructure, including domain controllers, Group Policy, and DNS

• Design, implement, and maintain PKI infrastructure using Step CA or similar certificate authority solutions

• Support and troubleshoot Windows Server and Linux systems across physical and virtual environments

• Manage virtualization platforms including Proxmox, VMware vSphere, Hyper‑V, or similar technologies

• Administer and maintain TrueNAS storage systems, including configuration, performance optimization, and capacity planning

• Deploy, configure, and manage Manage Engine solutions for IT operations, asset management, and service desk functions

• Implement and maintain comprehensive backup and disaster recovery solutions with documented procedures and regular testing

• Monitor system performance and respond to alerts and incidents

• Automate routine tasks using Power Shell, Bash, and Python scripting

• Working knowledge of AWS cloud infrastructure including EC2, S3, VPC, IAM, and other core services

• Collaborate with development and operations teams to support application deployments

• Maintain comprehensive documentation of systems, processes, and procedures

• Implement and maintain security controls in accordance with NIST 800‑171, CMMC, and other relevant compliance frameworks

• Ensure systems meet government security requirements and support audit activities

• Provide technical guidance and support to junior team members

Must‑Have

Skills:

• Production Server
  
  Experience:
  
  Proven track record managing mission‑critical production environments with high availability requirements

• Entra :
  Hands‑on experience with Microsoft Entra  (Azure AD) administration, including identity governance, conditional access, and hybrid identity scenarios

• Active Directory Domain Services (AD DS):
  Extensive experience deploying and managing AD DS, including forest/domain design, Group Policy management, and integration with cloud identity services

• Windows/Linux Expertise:
  Advanced proficiency in both Windows Server (2016/2019/2022) and Linux distributions (RHEL, Ubuntu, CentOS)

• Scripting & Automation:
  Demonstrated experience with Power Shell and Bash scripting for automation and system management

• Virtual Machine
  
  Experience:
  
  Solid experience with virtualization technologies such as Proxmox, VMware vSphere, Hyper‑V, or AWS EC2

• Storage Administration:
  Experience managing enterprise storage solutions such as TrueNAS or similar NAS/SAN platforms

• Security & Compliance:
  Understanding of security best practices and experience implementing controls for regulated environments

Additional Requirements:

• Bachelor's degree in computer science, Information Technology, or equivalent experience

• 5+ years of systems administration experience, preferably in regulated industries (aerospace, defense, or government contracting)

• Strong understanding of networking concepts (TCP/IP, DNS, DHCP, VPN, VLANs)

• Experience with monitoring and alerting tools

• Excellent problem‑solving and analytical skills

• Strong communication skills and ability to work in a team environment

• Ability to work in a fast‑paced environment and manage multiple priorities

• Commitment to maintaining confidentiality and handling sensitive information

• Active or ability to obtain security clearance

• Experience with NIST 800‑171, CMMC (Cybersecurity Maturity Model Certification), or ITAR compliance

• PKI infrastructure experience, particularly with Step CA or similar modern certificate authority platforms

• Experience implementing automated onboarding/off‑boarding workflows (Gusto integration preferred)

• Manage Engine platform administration and configuration experience

• Relevant certifications such as Microsoft Certified:
  Azure Administrator, AWS Certified Sys Ops Administrator, RHCE, or MCSE

• Security certifications such as Security+, CISSP,…