We are an Engineering and IT staffing agency in search of an experience System Administrator for a client. Our client is an advanced technology solutions provider focused on full-spectrum wireless communications system development. Serving clients in cybersecurity, defense, aerospace, healthcare, and enterprise IT transformation, they specialize in end-to-end services—from analysis and simulation to RF design, embedded development, and prototyping. With a multidisciplinary team of engineers and systems experts, they support critical infrastructure and research programs for commercial and government applications alike.
As their technical environment continues to evolve to meet high-availability, secure, and scalable demands, the System Administration team plays a pivotal role in keeping the infrastructure optimized for real-time data flow, secure communications, and performance engineering.
Typical Duties and Responsibilities
We are seeking a System Administrator with deep technical experience and a proactive mindset to support diverse environments consisting of Linux, Windows, and cloud-based systems. This individual will maintain, monitor, and enhance the IT infrastructure that supports engineering development, communications prototyping, and secure data processing.
Responsibilities include:
- Manage and maintain Windows and Linux-based servers used for simulation, software development, and secure communications environments
- Install, configure, and troubleshoot network services (e.g., DHCP, DNS, LDAP, NTP, SMTP, SMB, RADIUS)
- Support hybrid environments, including on-premise systems, private clouds, and public cloud platforms like AWS and Azure
- Deploy, patch, and secure operating systems, middleware, and services according to NIST 800-53, DISA STIG, and CIS benchmarks
- Set up and manage virtualization platforms (e.g., VMware vSphere, Hyper-V, Proxmox, or KVM)
- Collaborate with DevOps and engineering teams to ensure systems support real-time communications, RF testing platforms, and software-defined radios (SDRs)
- Implement centralized logging, backup, and disaster recovery systems using tools like Veeam, Commvault, ELK Stack, or Graylog
- Manage user accounts, permissions, and group policies using Active Directory, GPO, and Azure AD
- Monitor system performance, availability, and capacity using tools such as Nagios, Zabbix, PRTG, or SolarWinds
- Support endpoint management for engineering workstations, lab systems, and field-deployable communication devices
- Maintain documentation including network diagrams, change logs, SOPs, and incident response protocols
Education
- Bachelor’s degree in Information Technology, Computer Science, Systems Engineering, or a related technical field
- Equivalent experience or military background in information systems and secure communications may also be considered
Required Skills and Experience
- 5+ years of experience as a System Administrator, IT Systems Engineer, or equivalent technical role
- Proficiency in Linux (Ubuntu, RHEL, CentOS) and Windows Server (2016/2019/2022) environments
- Experience configuring and managing virtualization platforms like VMware ESXi, KVM, or Hyper-V
- Strong understanding of TCP/IP, routing and switching, VLANs, VPN, and firewall rules
- Familiarity with scripting for automation (e.g., PowerShell, Bash, Python)
- Hands-on experience with Active Directory, DNS, GPO, and remote access tools
- Experience supporting secure or air-gapped environments in compliance with FISMA, ITAR, or NIST standards
- Solid understanding of data backup, disaster recovery, and business continuity best practices
Preferred Qualifications
- Certifications such as:
- CompTIA Security+, Linux+, or Server+
- Microsoft Certified: Windows Server Hybrid Administrator Associate
- VMware Certified Professional (VCP)
- AWS SysOps Administrator or Azure Administrator Associate
- Familiarity with containerization (e.g., Docker) and orchestration tools (e.g., Kubernetes, Rancher)
- Experience supporting wireless communications systems, including software-defined radio (SDR) development or RF testing environments
- Background in DoD, defense contracting, or aerospace IT infrastructure
- Exposure to software tools commonly used in RF and embedded development such as MATLAB, LabVIEW, or GNURadio
- Understanding of Zero Trust security architectures and endpoint detection & response (EDR) solutions like CrowdStrike, SentinelOne, or Trellix
