Sr. IT Systems Engineer- Palmdale, CA- Secret Required

Posted Yesterday
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Palmdale, CA, USA
In-Office
96K-178K Annually
Senior level
Aerospace • Security • Cybersecurity • Industrial
The Role
Designs, deploys, optimizes, and supports complex enterprise IT systems, including Windows and Linux infrastructure, servers, storage, virtualization, Active Directory, DNS, DHCP, PKI, and monitoring tools. Applies security hardening and compliance standards, performs vulnerability remediation, creates technical documentation, automates administration, and modernizes legacy platforms. Requires extensive enterprise infrastructure experience, Security+ or equivalent DoD certification, and an active Secret clearance with the ability to obtain Top Secret.
Summary Generated by Built In
Standard Job Description

The System Engineer (Level 3) is a senior technical individual contributor responsible for the design, implementation, optimization, and support of complex enterprise‑wide IT systems. This role provides technical experience across multiple platforms, ensures high availability, performance, and security of critical services.

Key Responsibilities

  • Domain Administration – Operate, configure, and maintain servers, storage, and virtualization infrastructure.
  • Linux Administration - Familiarization with Linux security, ansible, bash, STIGs, and configuration mangement. 
  • Enterprise Services – Manage Active Directory, DNS, DHCP, PKI, and enterprise monitoring tools as well as various other servers.
  • Security & Compliance Apply hardening standards (e.g., CIS Benchmarks, DISA STIGs) and ensure compliance with internal policies and regulatory requirements (e.g., NIST, ISO 27001). Participate in vulnerability assessments and implement remediation strategies.
  • Documentation & Best Practices Create and maintain detailed design documents, runbooks, SOPs, and change‑management records. Contribute to the development and continuous improvement of IT standards and best‑practice libraries.
  • Continuous Improvement – Identify opportunities to modernize legacy systems and consolidate platforms that reduce operational overhead.
Basic Qualifications
  • Bachelor’s degree in Computer Science, Information Technology,  a related field or equivalent work experience
  • Must possess DoD 8570 IAT Level II or III certification (i.e. Security+)
  • Active Secret Clearance; Ability and willingness to obtain Top Secret Clearance
  • 5+ years of hands‑on experience designing, deploying, and supporting enterprise infrastructure
  • Strong analytical and problem‑solving abilities; excellent communication (technical & non‑technical)
  • In-Depth knoweldge of Windows and RHEL system administration
Desired Skills
  • Certification in RHEL systems (RHCSA, RHCE)
  • Microsoft Certified: Windows Server Hybrid Administrator Associate
  • Experienced in Hybervisor technologies (Vmware, Nutanix) as well as HCI. 
  • Proven understanding of cyberscurity threat models, attack surfaces, and risk management principals
  • Ability to create automated solutions using standard practices and tools (Gitlab, Ansible, PowerShell, etc)
  • Expertise in Linux imaging using kickstart processes and PXE.

Pay Information

Full-Time Salary Range: $95900.00 - $178100.00

At Lockheed Martin, we know mission success starts with taking care of our people. Our Total Rewards program is designed to attract top talent, support your well-being, and help you grow—both professionally and personally.

The salary range for this position is as listed on the requisition. Please note that the salary information listed is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market(work location) and business considerations when extending an offer.  

Benefits offered: Medical, Dental, Vision, Flexible work arrangements and schedules (e.g., 4x10), 401(k) match, Paid time off, Holidays, Parental Leave, EAP, Flexible Spending Accounts, Education Assistance, Life Insurance, Short-Term Disability, and Long-Term Disability.

  • Annual short-term and/or long-term incentive compensation programs may be offered depending on the position. Payments under these annual programs are not guaranteed and can vary from year to year and are tied to a range of performance metrics.
  • For (Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.

Skills Required

  • Bachelor's degree in Computer Science, Information Technology, a related field, or equivalent work experience
  • DoD 8570 IAT Level II or III certification, such as Security+
  • Active Secret clearance
  • Ability and willingness to obtain Top Secret clearance
  • At least 5 years of hands-on experience designing, deploying, and supporting enterprise infrastructure
  • Strong analytical and problem-solving abilities
  • Excellent technical and non-technical communication skills
  • In-depth knowledge of Windows and RHEL system administration
  • RHEL certification, such as RHCSA or RHCE
  • Microsoft Certified Windows Server Hybrid Administrator Associate certification
  • Experience with VMware, Nutanix, hypervisor technologies, and HCI
  • Understanding of cybersecurity threat models, attack surfaces, and risk management principles
  • Ability to create automated solutions using GitLab, Ansible, PowerShell, and similar tools
  • Expertise in Linux imaging using Kickstart and PXE

Lockheed Martin Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Lockheed Martin and has not been reviewed or approved by Lockheed Martin.

  • Retirement Support — Retirement benefits are described as a standout element, with a strong 401(k) program and options like an employee stock purchase plan. Feedback suggests these features meaningfully enhance total compensation and long‑term financial security.
  • Healthcare Strength — Healthcare coverage is portrayed as comprehensive from day one, with multiple plan options, mental health resources, and virtual care. Wellness supports such as on‑site services and preventive programs are also highlighted.
  • Flexible Benefits — Work arrangements often include compressed schedules and telework, contributing to a favorable work‑life balance. Feedback suggests this flexibility is a key reason many view the overall package positively.

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The Company
HQ: Bethesda, MD
108,588 Employees
Year Founded: 1912

What We Do

Customer Focus, Innovation and Purpose are Built Into Everything We Do. Lockheed Martin. Your Mission is Ours ™. Headquartered in Bethesda, Maryland, Lockheed Martin is a global security and aerospace company principally engaged in the research, design, development, manufacture, integration and sustainment of advanced technology systems, products and services.

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