Cybersecurity Engineer

Systems and Network Administrator Basic

Job Qualifications:

Education:

Bachelor’s degree in Computer Science, Information Technology, or a related field (or equivalent practical experience).

Certifications like CompTIA Network+, Microsoft Certified:
Windows Server Fundamentals, or RHCSA (Red Hat Certified System Administrator).

Experience administering RHEL-based systems (e.g., RHEL 8/9, Fedora).

Command-line proficiency in Bash scripting and using tools like YUM/DNF for package management.

Configuration and management of RHEL services (e.g., Systemd, Apache, Nginx, Postgre

SQL, MySQL, LDAP).

Knowledge of SELinux, firewalld, and security management.

Experience administering Windows Server environments (e.g., Windows Server 2022).

Active Directory (AD) management, Group Policy, DNS, DHCP, and IIS (Internet Information Services).

Familiarity with Power Shell scripting for automation.

Experience with Windows file systems, backups, and restoration.

Understanding of IP addressing, subnetting, VLANs, VRFs, routing, and switching.

Configuration of network devices like routers, switches, firewalls, and VPNs.

Experience with TCP/IP, DNS, DHCP, and NTP protocols.

Basic knowledge of network monitoring tools (e.g., ping, trace route, netstat, Wireshark).

Experience configuring network interfaces, firewalls, and routing tables on both RHEL and Windows environments.

Experience with virtualization technologies (e.g., VMware vSphere, Hyper‑V, or KVM).

Familiarity with containerization technologies like Docker and Kubernetes for Linux‑based environments.

Experience with XFS, Network Attached Storage (NAS) configuration and maintenance (e.g. TrueNAS).

Experience with administering a NAS in a Virtualized environment.

Knowledge of basic network and system security practices (e.g., firewalls, VPNs, user authentication).

Familiarity with securing systems using firewalld (RHEL) or Windows Firewall.

Understanding of user and group management and access controls (e.g., LDAP, Kerberos, Active Directory).

Understanding of securing remote access using SSH for Linux and RDP/WinRM for Windows.

Experience with PKI management.

Strong troubleshooting skills for both Linux and Windows environments, diagnosing network issues, hardware failures, and service outages.

Ability to analyze and resolve connectivity issues in a multi‑platform environment (Linux + Windows).

Proven ability to identify the appropriate method and conduct testing to ensure complex technical solutions will work as expected in production.

Experience writing basic Bash, Power Shell or Python scripts to automate routine tasks.

Basic understanding of automation tools like Ansible, Packer and Terraform.

Excellent communication skills for documenting network and system configurations, troubleshooting guides, and policies.

Ability to collaborate effectively with different teams (Software Factory, Information Assurance, Development Teams, etc.).

Ability to mentor junior system/network administrators and provide technical leadership.

Ability to help manage tasks and priorities for a small team.

8-10 years of hands‑on experience with system and network administration.

Advanced experience with system performance tuning, service optimization, and high availability setups.

Expertise in configuring and managing systemd for service management and LVM (Logical Volume Management).

Familiarity with containerization technologies like Docker and Kubernetes for Linux‑based environments.

Expertise in advanced Active Directory features like Group Policy Objects (GPO), Domain Controllers, Forest/Domain functional levels, and Trusts.

Experience with Windows systems imaging, configuration management, and associated tooling (e.g., MDT, SCCM, Power Shell DSC, etc).

Experience with deploying, administering, and maintaining Kubernetes…