BAE Systems

Systems Admin Sr

BAE Systems$95K — $115K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • US Citizenship with the ability to obtain a US government secret clearance.
  • CompTIA Security+ or equivalent DoD 8570 IAT Level II certification (or ability to obtain within 6 months).
  • 5-7 years of system administration experience (or 4+ years with a degree).
  • Strong experience with enterprise Windows Server environments.
  • Advanced knowledge of Active Directory, Group Policy, DNS, and DHCP.
  • Experience with VMware or Horizon virtualization technologies.
  • Strong troubleshooting and analytical skills.

Responsibilities

  • Administer and maintain Windows and Linux server environments.
  • Manage Active Directory, Group Policy, and network services.
  • Perform server installation, upgrades, and life cycle management.
  • Monitor system health and performance metrics.
  • Troubleshoot operating system and infrastructure issues.
  • Support VMware virtualization platforms and manage virtual machines.
  • Develop scripts for task automation and process improvement.

Benefits

  • Participate in after-hours maintenance and incident response.
  • Opportunity for professional development and obtaining certifications.
  • Collaborative work environment with IT and business stakeholders.
Full Job Description
Job Description

We are seeking an experienced Systems Administrator to implement, maintain, and support our enterprise IT infrastructure consisting of Windows and Linux systems. The ideal candidate will have strong experience managing servers, identity services, virtualization platforms, endpoint systems, and security controls while demonstrating the ability to troubleshoot complex technical issues and improve operational efficiency.
The Systems Administrator will play a key role in ensuring system availability, performance, security, and reliability while collaborating with IT teams, business stakeholders, and vendors to deliver effective technology solutions.

Responsibilities
Systems Administration
  • Administer and maintain Windows Server and Linux server environments.
  • Manage Active Directory, Group Policy, DNS, DHCP, file services, and authentication services.
  • Perform server installation, configuration, upgrades, migrations, and lifecycle management.
  • Monitor system health, performance, capacity, and availability.
  • Troubleshoot complex operating system, application, and infrastructure issues.
  • Maintain enterprise workstations, servers, and endpoint management solutions.
Virtualization & Infrastructure
  • Manage VMware vSphere, Horizon, or other virtualization platforms.
  • Deploy and maintain virtual machines, templates, snapshots, and resource allocation.
  • Support storage, backup, and disaster recovery solutions.
  • Perform system recovery testing and validate backup integrity.
Cloud & Enterprise Applications
  • Support Microsoft Entra ID (Azure AD), identity synchronization, and cloud-based authentication.
  • Assist with hybrid infrastructure and cloud migration initiatives.
Automation & Process Improvement
  • Develop and maintain PowerShell, Bash, or Python scripts to automate administrative tasks.
  • Improve operational efficiency through automation, documentation, and standardization.
  • Create and maintain technical documentation, procedures, and knowledge articles.
Security & Compliance
  • Implement security best practices across servers, endpoints, and applications.
  • Apply operating system patches, security updates, and vulnerability remediation.
  • Manage endpoint security tools, encryption technologies, and access controls.
  • Support audits, compliance requirements, and cybersecurity initiatives.
Support & Collaboration
  • Provide Tier 1 & 2 escalation support for complex technical issues.
  • Collaborate with network, security, and application teams.
  • Participate in after-hours maintenance activities and incident response when required.


This position will be posted for at least 5 calendar days. The posting will remain active until the position is filled, or a qualified pool of candidates is identified.

Required Skills and Education

  • US Citizenship and ability to obtain a US government secret clearance
  • CompTIA Security+ or equivalent DoD 8570 IAT Level II certification or ability to obtain within 6 months for hire
  • 5-7 years of experience (4+ years of experience with a degree) as a system administrator.
  • Strong experience supporting enterprise Windows Server environments.
  • Advanced knowledge of Active Directory, Group Policy, DNS, DHCP, and Windows troubleshooting.
  • Experience with virtualization technologies such as VMware or Horizon.
  • Strong troubleshooting, analytical, and documentation skills.


Preferred Skills and Education

  • Active U.S. Secret Security Clearance.
  • Bachelor's degree in related field
  • Experience administering Linux distributions such as Red Hat Enterprise Linux, Rocky Linux, Ubuntu, or similar platforms.
  • Experience with vulnerability management platforms.
  • Experience supporting regulated or highly available environments.

About BAE Systems

BAE Systems plc is a British multinational arms, security, and aerospace company. It is among the world's largest defense contractors, with over 85,000 employees and operations in over 40 countries. BAE Systems is involved in the design, development, and manufacture of a wide range of products and services, including military aircraft, naval ships, and land vehicles. The company also provides a range of cybersecurity and intelligence services. BAE Systems has a long history, dating back to the 19th century, and has been involved in many major defense projects. Visit baesystems.com for more information.
Learn more about BAE Systems
Size
90,500 employees
Industry
Founded
1997
NASDAQ

Similar Jobs

More Jobs at BAE Systems

  • BAE Systems
    Eng Prin - Sys
    $120K — $145K *
    Colorado Springs, CO 80918 (El Paso County)
    Aerospace & Defense
    In-Person
  • BAE Systems
    Dir II- Eng
    $170K — $200K *
    Mc Lean, VA 22102 (Fairfax County)
    Aerospace & Defense
    Hybrid
  • BAE Systems
    Eng Sr - Quality
    $95K — $115K *
    Manassas, VA 20110 (Manassas City County)
    Aerospace & Defense
    In-Person
  • BAE Systems
    Program Mgr II
    $110K — $130K *
    Broomfield, CO 80021 (Jefferson County)
    Aerospace & Defense
    In-Person
  • BAE Systems
    Eng Sr Prin - HW
    $110K — $130K *
    Endicott, NY 13760 (Broome County)
    Aerospace & Defense
    Hybrid

More Information Technology Jobs

Find similar Systems Admin Sr jobs: