Lead Systems Engineer - Mission Protection (On-Site)

Jobtome; Springfield (IL); On-site; USD 128,000 - 237,000; Full time

Job summary

L3Harris Technologies is seeking a Lead Systems Engineer for Mission Protection to direct a high-priority national security program. You will lead a contractor Mission Protection team, apply OPSEC and cyber defense principles, and ensure survivability of U.S.

assets in contested environments. The role requires strong leadership and deep threat-informed engineering expertise to integrate protection requirements into architecture, lifecycle activities, and operational planning.

Qualifications

• Bachelor's degree or higher with relevant experience.
• Active Top Secret/SCI with CI Poly clearance required.
• 5 years of threat modeling, vulnerability analysis, and risk management experience.
• 5 years of experience supporting a Weapons and Tactics team and integrating protection strategies.

Responsibilities

• Conduct mission protection assessments across space, cyber, and ground architectures.
• Collaborate with mission planners and operators to embed protection throughout the system lifecycle.
• Develop and implement mitigation plans and countermeasures aligned with mission assurance priorities.
• Coordinate with DoW and IC stakeholders to align with national guidance and classification policies.
• Lead threat modeling, CONOPS, and risk management activities for the program.
• Lead the Mission Protection contracting team in red/blue team exercises and program reviews.
• Prepare briefings for senior leadership on threats and mitigation outcomes.

Skills

Leadership

Threat modeling

Vulnerability analysis

Risk management

Communication

Education

Bachelor's degree

Graduate degree

Tools

STK Level 2/3 Certification

ODTK

Job description

L3Harris Technologies is seeking a Lead Systems Engineer for Mission Protection to direct a high-priority national security program. You will lead a contractor Mission Protection team, apply OPSEC and cyber defense principles, and ensure survivability of U.S.

assets in contested environments. The role requires strong leadership and deep threat-informed engineering expertise to integrate protection requirements into architecture, lifecycle activities, and operational planning.