Cyber Systems Security Engineering Sr - E3

Posted Yesterday
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King of Prussia, PA, USA
In-Office
110K-205K Annually
Senior level
Aerospace • Security • Cybersecurity • Industrial
The Role
Responsible for designing, validating, and securing cyber solutions across the systems lifecycle. Conducts threat modeling, vulnerability assessments, security testing, supply chain risk management, and mitigation analysis. Develops authorization documentation, including SSPs, SCTMs, and POA&Ms, and supports RMF and JSIG Assessment and Authorization activities. Secures Linux and Windows systems, performs continuous monitoring, validates patches and STIG compliance, and coordinates with architects and developers. Requires DoD cybersecurity experience and ability to obtain and maintain a Top Secret clearance.
Summary Generated by Built In
Standard Job Description

Responsible for applying an interdisciplinary, collaborative approach to plan, design, develop, validate and verify Cyber solutions across the lifecycle. Conduct cyber risk assessment activities including threat modeling, vulnerability analysis and analysis of mitigation solutions. Coordinates and addresses Supply Chain risk management concerns. Develop, evaluate and analyze design constrains, trade-offs and detailed system and security design as they pertain to the Cyber domain. Coordinate with Cyber and system architects and developers to provide oversight in the development of solutions. Conduct cybersecurity test and evaluation of hardware and/or software designs to verify and validate compliance with defined specifications and requirements. Employs cyber security processes, methods, techniques and tools and assure their consistent application. Implements appropriate Assessment and Authorization activities as required by customers. *USE OF THIS CLASSIFICATION REQUIRES AUTHORIZATION FROM THE BUSINESS AREA CYBER DIRECTOR OR DELEGATE*

Basic Qualifications
  • Bachelor’s degree in Cybersecurity, Systems Engineering, Computer Science, Information Technology, or related STEM discipline.
  • Minimum 5+ years of experience in cybersecurity, systems engineering, information assurance or relevant experience 
  • Experience securing Linux and/or Windows operating systems in enterprise or mission environments. 
  • Extensive experience creating and updating JSIG based Body of Evidence (BoE) packages including SSPs, SCTMs, POA&Ms, etc to achieve and maintain system authorizations (ATOs, IATTs, etc.).
  • Working knowledge of cybersecurity frameworks such as the following and associated documentation:  
    • NIST SP 800-53 
    • NIST 800-171 
  • Experience with vulnerability scanning and remediation tools. 
  • Experience with scripting languages and automation tools 
  • Ability to obtain and maintain a DoD Top Secret clearance (or higher, as required). 
Desired Skills

• Deep experience with securely configuring and hardening Linux and Windows based operating systems.

• Experience with gaining Cross Domain Solution (CDS) accreditation and deploying approved CDSs as embedded systems. 

• Deep experience conducting JSIG/RMF based continuous monitoring (CONMON), system analysis and auditing, and vulnerability assessments using cyber security tools such as Splunk, Solarwinds, Tenable Nessus/ACAS, Trellix ePO, etc. 

• Highly skilled at verifying and validating patches and Security Technical Implementation Guides (STIGs) to address cyber vulnerabilities, feature changes, or obsolescence.

• Deep experience with implementation and deployment of DoD requirements, policies and processes as part of the Risk Management Framework (RMF) Assessment and Authorization (A&A) process.

• Demonstrated experience with one or more of the following standards/guides: RMF, JSIG, CNSSI-1253, Common Criteria, NSTISSIP 11, DoD8500.1, DoD8500.2, JAFAN 6/3, DITSCAP, DIACAP.

• Strong analytical and organizational skills with excellent communication skills (written and verbal communications) and the ability to work in a dynamic work environment.

Pay Information

Full-Time Salary Range: $110300.00 - $204900.00

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 Cybersecurity, Systems Engineering, Computer Science, Information Technology, or a related STEM discipline
  • At least 5 years of experience in cybersecurity, systems engineering, information assurance, or relevant experience
  • Experience securing Linux and/or Windows operating systems in enterprise or mission environments
  • Extensive experience creating and updating JSIG-based Body of Evidence packages, including SSPs, SCTMs, and POA&Ms, to achieve and maintain system authorizations such as ATOs and IATTs
  • Working knowledge of NIST SP 800-53, NIST 800-171, and associated cybersecurity documentation
  • Experience with vulnerability scanning and remediation tools
  • Experience with scripting languages and automation tools
  • Ability to obtain and maintain a DoD Top Secret clearance or higher, as required
  • Deep experience securely configuring and hardening Linux and Windows operating systems
  • Experience gaining Cross Domain Solution accreditation and deploying approved CDSs as embedded systems
  • Deep experience conducting JSIG/RMF continuous monitoring, system analysis, auditing, and vulnerability assessments using tools such as Splunk, SolarWinds, Tenable Nessus/ACAS, and Trellix ePO
  • Experience verifying and validating patches and STIGs to address vulnerabilities, feature changes, or obsolescence
  • Deep experience implementing and deploying DoD requirements, policies, and processes for RMF Assessment and Authorization
  • Experience with one or more of RMF, JSIG, CNSSI-1253, Common Criteria, NSTISSIP 11, DoD 8500.1, DoD 8500.2, JAFAN 6/3, DITSCAP, or DIACAP
  • Strong analytical, organizational, written, and verbal communication skills, with ability to work in a dynamic environment

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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