Principal Software Engineer (Onsite)
$107.5k - $204.5kRaytheon Co
Principal Software Engineer
RTX Corporation is an Aerospace and Defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 185,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, VA.
RTX BBN Technologies is an organization which values work/life balance and encourages lifelong learning of new technologies. For over 70 years, scientists and engineers in diverse disciplines at RTX BBN Technologies have collaborated to solve real-world problems through research, exploration, development and prototyping. We challenge the status quo, pioneer new technologies, and create transformative solutions.
We are seeking a Principal Software Engineer with experience in real-time embedded C language system development to join our Physical Sciences & Systems business unit located a stone's throw from seaside Newport, Rhode Island. Responsibilities will include but are not limited to: Linux and VxWorks real-time software development on a wide range of embedded multi-threaded platforms, integrating with custom hardware, implementation of high-performance embedded solutions, middleware, and implementing control, detection, and tracking algorithms developed by the systems engineering team.
The ideal candidate enjoys working in a multi-disciplinary role and is comfortable adapting to and identifying new technologies as needed. This candidate would have eight or more years of experience in implementing and maintaining high performance software, as well as a solid understanding of computer architectures, networking, device drivers, analog and digital interfaces, with experience across multiple real-time operating systems (RTOS). A strong background in signal processing and performance optimization would also be highly sought after.
What You Will Do
- Design, develop, implement, test, debug and integrate high performance embedded real-time software within heterogenous systems composed of multiple processor types and FPGAs, with external sensor and control interfaces for deployed DoD real-time software systems hosted on embedded hardware.
- Collaborate with a cross-functional team testing your contributions and analyzing performance.
- Integrate components you develop into a larger system in preparation for real world testing and deployment.
- Teaching, coaching, and mentoring less experienced staff.
- Contributing to proposals as well as preliminary and critical design reviews.
- Travel required up to 15%
What You Will Learn
- Involvement in the technical components of solving our customer's most complex problems.
- Work with world-class researchers and engineers who embrace innovation and challenge the status quo.
- Experience in a highly visible software development team, exposure to the Navy acquisition process, and opportunity to learn new technologies and gain new embedded development experiences.
Qualifications You Must Have
- Typically requires a degree in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 8 years of prior experience.
- Active and transferable Secret U.S. Government Security Clearance is required on day one.
- Experience including at least two of the following: Embedded C/C++ Software, High Performance Computer Systems, Embedded Real-Time Sensors and Control Applications, Software Architecture Design and Implementation.
- Experience using embedded Real Time Operating Systems (RTOS) (e.g., Green Hills, Integrity, Wind River VxWorks, Linux, etc.)
- Experience developing complex systems involving the integration of hardware, firmware, and software.
Qualifications We Prefer
- Ada programming language.
- Proficiency using C/C++.
- Familiarity with digital signal processing algorithms and software.
- Knowledge of linear algebra concepts.
- Experience using the VSIPL high performance vector library or another vector processing library.
- Proficiency in MATLAB and/or optimizing algorithms in C/C++.
- Experience with real-time processing optimization.
What We Offer
Whether you're just starting out on your career journey or are an experienced professional, we offer a robust total rewards package with compensation; healthcare, wellness, retirement, and work/life benefits; career development and recognition programs. Some of the benefits we offer include parental (including paternal) leave, flexible work schedules, achievement awards, educational assistance and child/adult backup care.
Location:
- This position is onsite at our Middletown, RI. headquarters
- Relocation assistance available
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.
$107.5k - $204.5k
...MIDDLETOWN, Ste 3 Position Role Type:Onsite U.S. Citizen, U.S. Person, or Immigration... .... For over 70 years, scientists and engineers in diverse disciplines at RTX BBN Technologies... ...solutions.We are seeking a Principal Software Engineer with experience in real-time embedded...SuggestedTemporary workWork experience placementWork at officeRemote workWorldwideFlexible hours$68.9k - $131.1k
...Main Rd ~ NIMITZ BLDG Position Role Type:Onsite U.S. Citizen, U.S. Person, or... ...RTX.What You Will DoThe mission of the software team in Portsmouth, RI is to provide world... ...customers. We are looking to add software engineers to our development team for a wide array...SuggestedFull timeTemporary workWork experience placementInterim roleInternshipWork at officeRemote workRelocationFlexible hours$86.8k - $165.2k
...BBN MIDDLETOWN, Ste 3 Position Role Type:Onsite U.S. Citizen, U.S. Person, or... ...technologies. For over 70 years, scientists and engineers in diverse disciplines at RTX BBN Technologies... ...solutions.We are seeking a Senior Software Engineer with experience in real-time embedded...SuggestedTemporary workWork experience placementWork at officeRemote workFlexible hours$90.83k - $100.77k
...Software Engineer Position We are hiring a Software Engineer. Help make the technologies, products and services that make a difference.... ...for-us/benefits Workplace Options: This position is fully onsite in Middletown, RI. Salary Note This estimate represents...SuggestedFlexible hours$77.84k - $86.36k
...Software Engineer Position We are hiring a Software Engineer. Help make the technologies, products and services that make a difference.... ...for-us/benefits Workplace Options: This position is fully onsite in Middletown, RI. Salary Note: This estimate represents the...SuggestedFlexible hours$86.8k - $165.2k
...Aircraft Rd ~ BLDG 220A Position Role Type:Onsite U.S. Citizen, U.S. Person, or... ...design, manufacture and service of aircraft engines and auxiliary power systems and has been... ...machine tools, controls and programming software.Candidate must have demonstrated experience...Contract workTemporary workWork experience placementWork at officeRemote workFlexible hoursShift workNight shiftWeekend workAfternoon shift$95.37k - $105.81k
...DevSecOps Engineer We are looking for a DevSecOps Engineer to join our Middletown, RI team. What You'll Experience: Build and maintain... ...-for-us/benefits Workplace Options: This position is fully onsite in Middletown, RI. Salary Note: This estimate represents the...Flexible hours$86.8k - $165.2k
...implemented. Today, BBN's scientists and engineers are working to advance the state-of-the-... ..., and communication. We are looking for software developers and AI enthusiasts to join us... ...Hybrid roles will work regularly both onsite and offsite. Ratio of time working onsite...Temporary workWork experience placementWork at officeRemote workRelocation packageFlexible hours$154k - $184k
...Senior Software Engineer We are seeking a Senior Software Engineer to join our Navy Programs team. In this role, you will provide hands-on technical leadership for the design, development, integration, and fielding of mission-critical software systems supporting U.S...Full timeRelocation packageFlexible hours$85k - $105k
...Software Engineer We are seeking a Software Engineer to join our Navy Programs team. In this role, you will support the development, integration, testing, and maintenance of mission-critical software systems supporting U.S. Navy submarines, aircraft carriers, and shore...Full timeRelocation packageFlexible hours- ...Software Engineer II SEACORP is seeking a well-qualified Software Engineer II. Primary Duties and Responsibilities: Job Summary: SEACORP's Combat Systems Business Area is seeking an experienced, highly motivated and detail-oriented Software Engineer to join our...Temporary workWork at officeLocal area
$22 - $28 per hour
...Java, React, CSS, Python, etc. Understand, create, and modify software and/or test documentation Support development, evaluation,... ...within an Agile Scrum environment following software engineering standards and applying common tools Qualifications HS 5-...Hourly payContract workTemporary workFor contractorsWork experience placementRemote work- ...Software Developer Company Overview: KMS Solutions, LLC is a technical management... .../ solutions company that specializes in engineering, analysis, and cyber security. Founded in... .... Work hours must align with NUWC's onsite access schedule, MSMT team collaboration...Full timeContract workTemporary workWork at officeLocal areaRemote workFlexible hoursDay shift
- ...work arrangement with a combination of onsite and remote support. Occasional travel... ...develop, maintain, and enhance complex software applications and systems supporting mission... ...supporting government, defense, engineering, logistics, or enterprise technology environments...Full timeContract workTemporary workPart timeRemote work
$138.9k - $180.6k
...Description: Saab Inc.'s Autonomous and Undersea Systems (AUS) division is seeking an innovative and experienced Senior Software Engineer to participate on technical teams defining, architecting, implementing, integrating, verifying, delivering, and maintaining software...Temporary workFor contractorsWork experience placementCasual workLocal areaRemote work- ...Software Developer PURVIS Systems is a technology solutions partner that develops, implements and maintains mission-critical solutions... ...responsibilities of this role will include: Application Engineering - Design, maintain, and modernize Java/JavaFX tools and...Full timeWork experience placementLocal areaRemote work
- ...requirements. We have undersea operations experience, combined with engineering and specific subject matter expertise, that provides an in-... ...systems engineering, modeling, simulation, data analysis, and software development to implement state-of-the-art capabilities....Local areaRemote workFlexible hours
- ...your background aligns with future opportunities, we’ll reach out directly when formal applications become available. About Software Engineering Roles at Danaher Are you passionate about building real-world applications, writing clean code, and solving meaningful...Remote jobInternship
$50 per hour
...Operations. In addition to hands‑on development, you will drive stakeholder conversations, define solution roadmaps, and mentor junior engineers to elevate the overall capability of the SCI-Helix team.Key ResponsibilitiesYou will lead the end‑to‑end creation of autonomous...Full timeContract workTemporary workWork experience placementCasual workFlexible hours- ...providers, applying principles and techniques of computer science, engineering, and mathematical analysis. - Plan and conduct technical... .... - Consult with engineering staff to support hardware, software, operational and performance requirements of overall cloud technology...Minimum wageContract workTemporary workWork experience placement
- ...requirements. We have undersea operations experience, combined with engineering and specific subject matter expertise, that provides an in-... ...solutions that exceed customer expectations. Senior Software Engineer Full Software Development Lifecycle | Agile Scrum...Local areaFlexible hours
- ...FPGA/Firmware Engineer (Rhode Island) **Senior FPGA Engineer - Torpedo Systems Group*... ...programs. * Visibility and trust: Act as the onsite frontline engineering representative for... ...engineering - Expert knowledge of Software Source Control tools and concepts (Git...Temporary workFor contractors
$110k - $165k
...Island / Jacksonville, Florida / Petaluma, CaliforniaStructural /Full Time Exempt /RemoteFoth is a 100% member-owned science and engineering consulting firm headquartered in Wisconsin, with over 85 years of success. Our 750 members across 33 locations are dedicated to solving...Full timePart timeRemote workFlexible hours$128.19k - $184.01k
.... About the Team and Role: We are seeking a talented iOS Engineer to join us in building Poe, an innovative platform that brings... ...engineers to enhance the overall user experience Own the entire software development process from timeline estimation to coding, testing...Remote jobFull time$103.71k - $138.28k
...Required Qualifications: ~ Major/Degree: Computer Science, Engineering, or similar technical degree. ~8+ years of experience with Microsoft... ...Platform Solution Architect Expert. Working knowledge of software development methodologies, standards, and coding best...Full timeTemporary workRemote work$95k - $105k
...Description Job Description Description: We are seeking a Systems Engineer to join our Navy Programs team. In this role, you will support... ...how complex systems fit together, and works well with software engineers, product leads, and testers in an agile team. The work...Full timeInternshipRelocation packageFlexible hours$132.23k - $176.31k
...performance, security, and scalability across the organization. The position requires working with cross-functional teams, mentoring junior engineers, and developing innovative solutions for complex networking challenges while maintaining high availability and security standards....Full timeTemporary workLocal areaRemote work- ...Responsibilities for this Position Payload Control System - Software/Systems Engineering Intern (Summer 2027) ID: 2026-74848 US-VA-Manassas US-RI-Middletown Required Clearance: Secret Posted Date: 9/9/2026 Category: Engineering-Software Employment Type: Intern...Summer workInternshipFlexible hours
$20.91 - $45.04 per hour
At TE, you will unleash your potential working with people from diverse backgrounds and industries to create a safer, sustainable and more connected world. Job Description : Connections matter. Make yours here. TE Connectivity is a global industrial technology leader...Remote jobWork experience placementSummer workInternshipLocal area$35 per hour
...take you? Transform the everyday with us! Our Siemens Grid Software team works to accelerate and secure the energy transition. We... ...Basic Qualifications: Pursuing a master’s degree Electrical Engineering, Power Systems Engineering, or related field. Ability to...Hourly payPermanent employmentFull timeInternshipWork at officeLocal areaImmediate startRemote work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Principal Software Engineer (Onsite). Be the first to apply!
- ultimate software Middletown, RI
- embedded software Middletown, RI
- entry level software sales Middletown, RI
- software technology Middletown, RI
- software implementation project manager Middletown, RI
- software support Middletown, RI
- government software Middletown, RI
- software Middletown, RI
- id software Middletown, RI
- remote software sales Middletown, RI






