Software Integration Engineer Sr

About the role

Lockheed Martin is a global leader in aerospace, defense, and technology solutions. The Manassas campus is a thriving center of engineering expertise fostering creativity, excellence, and exceptional products. The team tackles challenging engineering problems in a culture of innovation. This is an active engineering and development role focused on architectural design and system‑level mitigation, supporting Navy programs.

Responsibilities

• Design, write, test, and integrate defensive security applications and custom configurations into a Red Hat Enterprise Linux (RHEL) platform environment.
• Create new security‑focused applications.
• Modify existing platform architectures.
• Integrate robust software defenses directly into RHEL systems and custom runtime environments.
• Evaluate third‑party software for platform integration compatibility when required.

Requirements

• Minimum of 4+ years of professional experience as a Systems Engineer, Application Engineer, or Platform Developer working directly on Linux security solutions.
• Bachelor’s degree in Computer Science, Computer Engineering, Software Engineering, or equivalent practical product‑engineering experience.
• Advanced engineering experience working natively inside Red Hat Enterprise Linux (RHEL) environments to modify, configure, and build platform components.
• Proven experience designing integration pathways for software and validating platform changes using structured testing methodologies.
• Demonstrated experience writing new applications, scripts, or utilities to augment a platform environment.
• Strong proficiency with native RHEL defense components, network layers (e.g., firewalld, nftables), and application sandboxing.
• Must hold an active government Secret security clearance (position requires special facility access).

Skills

• Strong background in networking, switches, and routers.
• Strong written and verbal communication for cross‑functional team collaboration.
• Desire to lead and a track record of mentoring junior engineers or leading security‑focused design reviews.
• Desire to integrate and troubleshoot complex software systems.

Benefits

• Medical, Dental, Vision coverage.
• Flexible work arrangements and schedules (e.g., 4x10).
• 401(k) match.
• Paid time off, Holidays, Parental Leave.
• Employee Assistance Program (EAP).
• Flexible Spending Accounts.
• Education Assistance.
• Life Insurance.
• Short‑Term and Long‑Term Disability.
• Annual short‑term and/or long‑term incentive compensation programs (performance‑based, not guaranteed).
• For Washington state applicants: specific PTO and holiday accrual details (non‑represented: ≥10 hours PTO/month, ≥90 hours holidays; represented: 6.67 hours vacation/month, up to 52 hours sick leave/year, ≥96 hours holidays).

Pay

Full‑Time Salary Range: $110,300.00 – $204,900.00 (guideline; actual offer based on scope, experience, education, skills, market and business considerations).