Senior Principal Software Engineer – Secret Clearance

Collins Aerospace; Sterling (VA); On-site; USD 146,000 - 277,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

401(k) match

Tuition reimbursement

Relocation assistance

Job summary

Collins Aerospace, part of RTX, is seeking a Senior Principal Software Engineer in Sterling, VA, to design and develop software models for a Mission Crew Trainer device within the SDS portfolio. You will contribute to high-fidelity simulation and training solutions for armed forces missions.

The role requires deep experience with software lifecycles, C++ and Python, and a Secret clearance. You will mentor engineers, work in an Agile environment, and help drive software maturity across teams.

Qualifications

• Experience with software lifecycle processes (requirements, design, development, integration, test, planning).
• Active/transferable Secret U.S. government clearance is required before start date.
• DoD program experience and collaboration in large teams are expected.

Responsibilities

• Serve as a Senior Principal Software Engineer on a simulation team for a Mission Crew Trainer device.
• Lead design, development, integration, test, and validation to meet performance requirements.
• Mentor junior/mid engineers and provide technical coaching for growth.
• Work in an Agile program environment with planning, backlog management, and coordination.
• Identify risks and dependencies and report status to leadership.

Skills

C++

Python

Mentoring

Security clearance

DoD experience

Education

STEM degree

Advanced degree (MS/PhD)

Job description

Collins Aerospace, part of RTX, is seeking a Senior Principal Software Engineer in Sterling, VA, to design and develop software models for a Mission Crew Trainer device within the SDS portfolio. You will contribute to high-fidelity simulation and training solutions for armed forces missions.

The role requires deep experience with software lifecycles, C++ and Python, and a Secret clearance. You will mentor engineers, work in an Agile environment, and help drive software maturity across teams.