Principal Software Engineer
RTX
marlborough, MA · Posted October 27, 2026
Just laid off? Start here: a plan for the first weeks
More in Massachusetts job market · All Principal Software Engineer jobs (356) · Aerospace & Defense · Engineering jobs
More roles at RTX
- AN/TPY-2 AC/DC Converter Product Sub-Integrated Product Team Lead - Principal Engineer · tewksbury, MA
- Senior Principal Software Engineer and Certification Focal - Display Products (Onsite) · cedar rapids, IA
- Principal Software Engineer - Embedded Linux (Onsite) · fort wayne, IN
- Principal Engineer, Data Analytics and Machine Learning (Hybrid - Aguadilla, PR) · aguadilla, PR
- CSE Structures Principal Engineer (Onsite) · middletown, CT
- Principal Software Engineer - Streaming Insights (Remote) · phoenix, AZ
Similar jobs
- Principal - Forward Deployed Engineer · GSK · Cambridge, MA
- Senior Principal Software Development Engineer, Consumer AI Architect · CarGurus · Boston, MA
- Senior Principal Software Engineer, Cloud Architecture · CarGurus · Boston, MA
- Principal Software Architect – AI-Enabled Silicon Development · Advanced Micro Devices · Boxborough, MA
- Sr. Director, Enterprise Business Applications · Scholar Rock Holding · Cambridge, MA
- Principal Software Applications Engineer Onsite in Burlington MA · GLAUKOS · Burlington, MA
Where marlborough, MA ranks
Where marlborough, MA placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #5Best cities for software and engineering jobs in New England95 openings · of 24
- #8Best cities for mid-career professionals in New England52% · of 28
- #9Best cities for junior jobs in Massachusetts22% · of 20
- #12Best cities for software and engineering jobs in the Northeast95 openings · of 52
- #15Cities with the most hybrid jobs in New England10% · of 27
- #17Best cities for junior jobs in New England22% · of 28
Rankings about engineering jobs
- Best cities for software and engineering jobs #1 San Francisco (3,412 openings)
- Best cities for engineering pay after cost of living #1 San Mateo ($216k)
- Most requested AI skills in engineering jobs #1 AI tools in daily work (6.1%)
- AI tools named most often in engineering jobs #1 Claude (1.7%)
- Employers with the most engineering jobs #1 Amazon (2,992 roles)
Pay compared with the market
This listing does not state pay. Across 91 open principal software engineer listings that state pay, the middle half runs $208,500 to $320,000 and the median is $275,000.
Listed pay is what employers advertise, not what people are paid.
Principal Software Engineer salaries by state · Check your own pay
How AI is used in this kind of work
Among software developers, AI is already used for some of the tasks. Measured exposure for software developers: 29% (some).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
RTX has filed 6 layoff notices in the last twelve months, covering 25 workers, most recently October 2026. These are public filings with state labor departments, and an open role can sit alongside them. See the filings
About the job
Date Posted. 2026-10-27Country. United States of America Location. US-MA-MARLBOROUGH-MA4 ~ 1001 Boston Post Rd ~ BLDG 4 Position Role Type. Onsite. U.S. Citizen, U.S. Person, or Immigration Status Req...