Senior Mission Protection Systems Engineer

L3Harris Technologies; Springfield (VA); On-site; USD 128,000 - 237,000; Full time

Benefits offered by this job

Health insurance

401(k) match

Flexible spending accounts

Employee Assistance Program (EAP)

Job summary

L3Harris Technologies is seeking a Lead Systems Engineer – Mission Protection to join a high-visibility national security program in Springfield, VA. You will lead a team focused on protecting space, cyber, and ground assets, applying OPSEC, counterintelligence, and threat analysis to ensure survivability in contested environments.

The role demands strong leadership, deep threat-informed engineering skills, and the ability to integrate protection requirements into system life cycles and

Qualifications

• Bachelor’s degree with 9+ years of relevant experience; graduate degree with 7+ years of experience.
• In lieu of a degree, 13+ years of related experience.

Responsibilities

• Conduct mission protection assessments across space, cyber, and ground architectures.
• Collaborate with mission planners, operators, and partners to integrate protection strategies.
• Lead development of mitigation plans and implement countermeasures aligned with mission priorities.
• Coordinate with DoW and IC stakeholders to align with national guidance and policies.
• Develop threat models, CONOPS, and risk management frameworks for the program.
• Lead the Mission Protection contracting team for red/blue team assessments and security reviews.
• Prepare senior leadership briefings on threat assessments and mitigation outcomes.
• Work independently in classified operations centers to support 24/7 mission requirements.
• Communicate findings clearly to senior stakeholders.

Skills

Threat modeling

Vulnerability analysis

Risk management

Leadership

Communication

Top Secret/SCI clearance

Education

Bachelor’s Degree + 9+ years

Graduate degree + 7+ years

13+ years experience in lieu of degree

Tools

STK Level 2/3 Certification

ODTK

Job description

L3Harris Technologies is seeking a Lead Systems Engineer – Mission Protection to join a high-visibility national security program in Springfield, VA. You will lead a team focused on protecting space, cyber, and ground assets, applying OPSEC, counterintelligence, and threat analysis to ensure survivability in contested environments.

The role demands strong leadership, deep threat-informed engineering skills, and the ability to integrate protection requirements into system life cycles and