Principal Software Engineer - Onsite
Company: Raytheon
Location: Portsmouth
Posted on: March 17, 2026
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Job Description:
Date Posted: 2026-03-05 Country: United States of America
Location: US-RI-PORTSMOUTH-PS1 ~ 1847 W Main Rd ~ NIMITZ BLDG
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: DoD
Clearance: Secret Security Clearance Status: Active and existing
security clearance required on day 1 We are seeking a skilled
Principal Software Engineer to join our Radar Digital Product Line
team. The ideal candidate will have a passion for creating
high-performance applications and will be involved in all stages of
the software development lifecycle. You will work onsite in
Portsmouth, Rhode Island. What You Will Do: Develop robust and
scalable software in C++ running on Linux or UNIX operating systems
using Agile development methods Design, implement, test, and
maintain radar software applications, while ensuring system
integration and scalability. Create/update MATLAB scripts for use
in verifying software requirements Tackle difficult problems and
successfully deliver results on schedule Participate in
design/code/test reviews and ensure adherence to coding standards
and best practices. Stay current with industry trends and
advancements in C/C++ technologies, especially in relation to
complex systems and continuous delivery. Qualifications You Must
Have: Typically requires a bachelor’s in Science, Technology,
Engineering, or Mathematics (STEM) and a minimum of 8 years of
experience. 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. Experience in software design, integration and
test utilizing C / C++ in a Real-time, multi-threaded software
development environment. Experience in a Unix/Linux operating
system Qualifications We Prefer Experience with multithreading,
memory management, or performance optimization in complex
environments. Experience with data structures, algorithms, and
software design principles, particularly in high-concurrency and
distributed systems. Familiarity with software development
methodologies (Agile, Scrum, etc.). Software development experience
in a DoD environment Experience with Network Communication
Protocols, Shell Scripting (ksh, csh, bash, Perl), software
development tools like Git/Clearcase, software debuggers (GDB),
LINUX/UNIX text editors (vi/Gvim/Emacs), and MATLAB Experience
leading small projects/efforts. Experience providing technical
guidance/mentorship to junior engineers What We Offer: Our values
drive our actions, behaviors, and performance with a vision for a
safer, more connected world. At RTX we value: Safety, Trust,
Respect, Accountability, Collaboration, and Innovation. Learn More
& Apply Now! Onsite: Employees who are working in Onsite roles will
work primarily onsite. This includes all production and maintenance
employees, as they are essential to the development of our
products. This position requires a security clearance. DCSA
Consolidated Adjudication Services (DCSA), an agency of the
Department of Defense, handles and adjudicates the security
clearance process. More information about Security Clearances can
be found on the US Department of State government website here:
https://www.state.gov/m/ds/clearances/c10978.htm As part of our
commitment to maintaining a secure hiring process, candidates may
be asked to attend select steps of the interview process in-person
at one of our office locations, regardless of whether the role is
designated as on-site, hybrid or remote. The salary range for this
role is 107,500 USD - 204,500 USD. The salary range provided is a
good faith estimate representative of all experience levels. RTX
considers several factors when extending an offer, including but
not limited to, the role, function and associated responsibilities,
a candidate’s work experience, location, education/training, and
key skills.Hired applicants may be eligible for benefits, including
but not limited to, medical, dental, vision, life insurance,
short-term disability, long-term disability, 401(k) match, flexible
spending accounts, flexible work schedules, employee assistance
program, Employee Scholar Program, parental leave, paid time off,
and holidays. Specific benefits are dependent upon the specific
business unit as well as whether or not the position is covered by
a collective-bargaining agreement.Hired applicants may be eligible
for annual short-term and/or long-term incentive compensation
programs depending on the level of the position and whether or not
it is covered by a collective-bargaining agreement. Payments under
these annual programs are not guaranteed and are dependent upon a
variety of factors including, but not limited to, individual
performance, business unit performance, and/or the company’s
performance.This role is a U.S.-based role. If the successful
candidate resides in a U.S. territory, the appropriate pay
structure and benefits will apply.RTX anticipates the application
window closing approximately 40 days from the date the notice was
posted. However, factors such as candidate flow and business
necessity may require RTX to shorten or extend the application
window. RTX is an Equal Opportunity Employer. All qualified
applicants will receive consideration for employment without regard
to race, color, religion, sex, sexual orientation, gender identity,
national origin, age, disability or veteran status, or any other
applicable state or federal protected class. RTX provides
affirmative action in employment for qualified Individuals with a
Disability and Protected Veterans in compliance with Section 503 of
the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment
Assistance Act. Privacy Policy and Terms: Click on this link to
read the Policy and Terms
Keywords: Raytheon, Fall River , Principal Software Engineer - Onsite, IT / Software / Systems , Portsmouth, Massachusetts
