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# Principal Systems Engineer (ONSITE)

- **Company:** RTX
- **Location:** Marlborough, MA, United States
- **Experience:** Expert
- **Salary:** $107,500 - $204,500
- **Contract:** Permanent contract
- **Skills:** Systems Engineering, Microsoft Office, Software Requirements Analysis, Systems Integration, Test Execution Engine
- **Published:** November 13, 2026
- **Apply:** https://globalhr.wd5.myworkdayjobs.com/REC_RTX_Ext_Gateway/job/US-MA-MARLBOROUGH-MA3--1001-Boston-Post-Rd--BLDG-3/Principal-Systems-Engineer--ONSITE-_01886370

## About the Role

The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance, * Experience in systems integration and qualification activities, including requirements analysis, procedure and test development, test execution, and results evaluation

 * Experience with digital engineering tools such as DOORS, Cameo, and Microsoft Office Suite

 * Experience developing technical documentation and managing small projects

 * Experience working with radio, radar, or secondary radar systems

 * Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience

Qualifications We Prefer

 * Experience leading or managing technical projects

 * Experience supporting proposals or developing Bases of Estimate

 * Experience with primary and secondary radar systems

 * Active U.S. SECRET Security Clearance

 * Strong analytical, communication, and problem-solving abilities

 * Ability to perform effectively in a fast-paced environment with time-critical requirements

## Description

Collins Aerospace, an RTX company, is seeking an experienced Principal Systems Engineer to join the Multi-Domain Solutions Systems Engineering Team supporting the Air Traffic Navigation, Integration, and Coordination System (ATNAVICS) program.

The selected candidate will play a key role across multiple ATNAVICS contracts, including sustainment efforts for the U.S. military and production activities for an international customer. This role offers a unique opportunity to support the development, integration, and sustainment of mission-critical aviation navigation systems serving both domestic and international needs.

The ideal candidate is comfortable leading front- and back-end systems engineering activities, including verification planning, test development, procedure writing, test execution, documentation, and systems integration. This position requires someone who can take initiative, lead technical activities, mentor others, and work hands-on in both lab and field environments.

What You Will Do

 * Lead systems engineering tasks, including task planning, estimation, product ownership, metric collection, and cost account management

 * Define, develop, and manage system requirements, interface definitions, and verification/validation artifacts

 * Support operations concept development and procedure planning in collaboration with cross-functional teams

 * Develop and execute test plans, integration procedures, verification documentation, and test activities

 * Address customer issues by developing system- and product-level requirements to ensure compliant solutions

 * Perform sustainment activities for legacy radar systems, including troubleshooting, documentation, and testing

 * Communicate effectively with team members and the Integrated Product Team Leader (IPTL)

 * Collaborate with multidisciplinary engineering teams to ensure system functionality and integration

 * Travel up to 25% to support mission execution at RTX facilities, test ranges, vendor sites, and customer locations

 * Mentor junior engineers in systems engineering practices