Senior System Administrator, Windows/Linux

$92,290 - $156,860/Yr

Disability Solutions - Manchester, NH

Part-time - Mid Level

Manchester, NH

10,001+ employees

Administrative and Support Services

About the position

The Senior Systems Administrator role at BAE Systems involves supporting internal customers by designing, implementing, and managing lab infrastructure. This position focuses on building, configuring, administering, and troubleshooting Windows and Linux servers, as well as user workstation hardware and software. The role requires collaboration with security staff to ensure compliance with standards for classified systems, and it emphasizes proactive maintenance and development of Linux infrastructure technology to ensure continuous uptime.

Responsibilities

• Design, implement, and manage lab infrastructure to meet customer requirements.
• Build, configure, administer, and troubleshoot Windows and Linux servers.
• Design and implement workgroup-scale networks.
• Manage authentication, file-share, and collaboration servers for heterogeneous client systems.
• Develop and apply hardening steps for classified systems in compliance with NISPOM and JAFAN standards.
• Document system configurations for new and existing systems.
• Maintain Linux infrastructure technology for 24x7x365 uptime service.
• Monitor system performance and capacity planning.
• Manage software upgrades, patches, and hot fixes on servers and workstations.
• Create and modify scripts or applications to automate tasks.
• Collaborate with teams to develop automation strategies and deployment processes.

Requirements

• Bachelor's Degree in Computer Science, Information Systems, or a related field.
• 5 years of experience as a Linux Administrator.
• In-depth knowledge of Windows Server and Linux distributions (RedHat, CentOS, Debian).
• Hands-on experience with MySQL and/or MariaDB.
• Familiarity with VMWare and SAN management concepts.
• Expertise in Shell, Perl, and/or Python scripting.
• Solid knowledge of protocols such as DNS, HTTP, LDAP, SMTP, and SNMP.
• Additional Linux certifications (RHCT, RHCE, LPIC) are advantageous.
• Strong problem-solving and communication skills.

Nice-to-haves

• CompTIA Security+ certification.
• Experience with monitoring solutions applications (Zabbix).
• Experience with Ansible, Docker, and Kubernetes.
• Experience with Active Directory.

Benefits

• Health, dental, and vision insurance.
• Health savings accounts.
• 401(k) savings plan.
• Disability coverage.
• Life and accident insurance.
• Employee assistance program.
• Legal plan.
• Discounts on home, auto, and pet insurance.
• Paid time off and paid holidays.
• Paid parental leave, military leave, and bereavement leave.