Principal Software Engineer

Company: Lockheed Martin
Location: Harmans
Posted on: January 19, 2026

Job Description:

Lockheed Martin, a leader in global aerospace, defense, security, and technologies, is seeking a seasoned Principal Software Engineer to join our dynamic IT and Cybersecurity team. In this role, you will leverage your extensive expertise to develop and maintain cutting-edge software solutions that support our mission-critical systems. You will work in a collaborative environment that values innovation, ethical standards, and inclusivity, driving projects that integrate sophisticated technology systems which contribute directly to the security and technological advancement of our products and services. Lead the design, development, and optimization of software systems for aerospace and defense applications. Collaborate with cross-functional teams to integrate, deploy, and maintain advanced technology systems. Mentor junior engineers and lead by example in terms of code quality and engineering best practices. Conduct code reviews and maintain documentation standards for system reliability and sustainability. Engage in continuous professional development to keep up with the latest industry trends and technologies. Expertise in multiple programming languages such as C++, Java, Python, or similar. Strong understanding of embedded systems and real-time software engineering. Experience with version control tools like Git, CI/CD pipelines, and automated testing frameworks. Knowledge of cybersecurity principles relevant to defense and aerospace industries. Strong problem-solving skills and ability to work in a dynamic, team-oriented environment. Medical Insurance Dental Insurance Vision Insurance Life Insurance 401k Project Management Professional (PMP) certification desirable. Certified ScrumMaster (CSM) or similar Agile certification beneficial. Relevant cybersecurity certifications (e.g., CISSP, CompTIA Security) are an advantage.

Keywords: Lockheed Martin, Franconia , Principal Software Engineer, IT / Software / Systems , Harmans, Virginia

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