Principal Systems Engineer (ONSITE)

Collins Aerospace; Hartford (CT); On-site; USD 120,000 - 180,000; Full time

Job summary

Collins Aerospace, within RTX, seeks a Principal Systems Engineer to lead full lifecycle efforts from CONOPS to validation across ground and airborne systems. You will act as a disciplined SME, supervise lab activities, and ensure hardware/software interfaces are scalable and well-documented.

The role requires an active SECRET clearance, U.S. citizenship, and a STEM degree with substantial relevant experience. About onsite work in a defense-focused environment with cross-disciplinary teams.

Qualifications

• Oversee/test procedures development and execution.
• Knowledge of EVMS and its application in programs.
• Proficient with common industry tools (Jira, EWM, MS Office).
• Active and transferable SECRET clearance is required before start date.
• U.S. citizenship is required for security clearance eligibility.
• Typically requires STEM degree and 8+ years of relevant experience or an advanced degree with 5+ years.

Responsibilities

• Oversee full lifecycle development from CONOPS to validation.
• Act as subject matter expert within discipline with advanced knowledge.
• Lead lab activities including setup, configuration mgmt and testing.
• Ensure interfaces use a scalable ontology across models, hardware, and software.
• Support integration of solutions in target environment and manage design reviews.

Skills

Integration testing

Test automation

Security clearance knowledge

Education

STEM degree

Advanced degree

Tools

Jira

IBM EWM

Microsoft Office

Job description

Date Posted: 2026-10-21

Country: United States of America

Location: US-MA-MARLBOROUGH-MA2 ~ 1001 Boston Post Rd ~ BLDG 2

Position Role Type: Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Security Clearance Type: Secret - Current

Security Clearance Status: Active and existing security clearance required on day 1

Raytheon Company, Managed by Collins Aerospace

Collins Aerospace, an RTX company, is a leader in technologically advanced and intelligent solutions for the global aerospace and defense industry. Collins Aerospace has the capabilities, comprehensive portfolio, and expertise to solve customers’ toughest challenges and to meet the demands of a rapidly evolving global market. The Strategic Communications team is seeking an experienced Principal Systems Engineers in a role committed to creating creative and cost-effective solutions for our ground and airborne systems.

As part of Collins Aerospace, Mission Systems organization, we specialize in developing advanced communication systems, ground and flight computers, sensors, cyber and software solutions, as well as providing integration of Mission Systems. As part of the Strategic Communications Department, the Systems Engineering department supports a variety of communications systems including SATCOM (including AEHF, EHF, X-Band, Ka-Band, Ku-Band, C-Band, and PTW), Line-of-Site (LOS) Radio Terminals and Secure Switching Networks.

What You Will Do

• Oversee the development of full lifecycle solutions from CONOPS to Validation
• Act as a Subject Matter Expert within discipline with advanced to expert knowledge of work area
• Oversee and perform lab activities including definition, setup, configuration management, and testing
• Ensure Modeling, Hardware, and Software Interfaces utilize a scalable ontology
• Oversee and support the Integration of Solutions within their target environment
• Coach, review, and delegate work of lower-level professional
• Contribute to the development of goals of the discipline and planning efforts (Cost and Schedule)
• Influence others regarding policies, practices, and procedures
• Manage moderately sized projects or processes
• Manage the entrance and exit criteria of Design Reviews, Integration, Dry Run, and Formal Qualification Testing
• Review, moderate and document major changes in systems or processes to solve difficult and often complex problems
• Analyze and document system behaviors
• Support system trade studies, requirements analysis, allocation to subsystems

Qualifications You Must Have

• Strong integration and test experience including test procedure development, test execution, test reporting, and test automation
• Knowledge of or application of Earned Value Management System (EVMS)
• Proficient in tooling to include Microsoft products, or tasking boards (Jira, IBM EWM, etc.)
• Active and transferable U.S. government issued SECRET security clearance is required prior to start date
• U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
• 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 in Communication Radio and Systems: SATCOM, LOS/BLOS, AEHF, PTW, or V/UHF
• Experience in Environmental Qualification Testing (EQT)