Senior Software Engineer (Onsite)

RTX; Middletown (RI); On-site; USD 87,000 - 165,000; Full time

Benefits offered by this job

Medical

Dental

Vision

401(k) match

Flexible schedules

Educational assistance

Parental leave

Job summary

RTX BBN Technologies in Middletown, RI seeks a Senior Software Engineer with real-time embedded C development experience to join our doD-focused team. Responsibilities include building high-performance embedded software, integrating with hardware, and supporting multi-threaded platforms on RTOS.

Candidates should have 8+ years of software experience and a strong systems background. The role requires an active Secret clearance on day one, familiarity with RTOS like VxWorks, Green Hills, or

Qualifications

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience or in absence of a degree, 9 years of relevant 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.

Responsibilities

• Design, develop, implement, test, debug and integrate high performance embedded real-time software within heterogeneous systems.
• 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.
• Ability to travel up to 15%.

Skills

Embedded C/C++

RTOS knowledge

Systems integration

Ada programming

C/C++ proficiency

Signal processing

Education

STEM degree

Advanced degree

Tools

Green Hills

Integrity

Wind River VxWorks

Linux

Job description

US-RI-MIDDLETOWN-201 ~ 127 John Clarke Rd ~ BBN MIDDLETOWN, Ste 3

2026-09-16

United States of America

Onsite

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

DoD Clearance: Secret

Active and existing security clearance required on day 1

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Join us and help shape the future of aerospace and defense.

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 Senior 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.
• Ability to travel up to 15%

What You Will Learn

• Become involved 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.
• Gain 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 minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience or in absence of a degree, 9 years of relevant 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

• compensation
• healthcare
• wellness
• retirement
• work/life benefits
• career development
• recognition programs
• parental (including paternal) leave
• flexible work schedules
• achievement awards
• educational assistance
• child/adult backup care

Location

• This position is onsite at our Middletown, RI. headquarters
• Relocation assistance available

To help you achieve your goals, BBN will provide:

• A strong leadership team well-versed in government R&D.
• A collaborative and collegial environment to push state-of-the-art research.
• A technically competent pool of research scientists who are willing to mentor, listen, and help you refine your research vision and goals.
• Business development, programmatic, contracting, finance, and HR support.
• Access, through RTX, to opportunities that help transition your research and ultimately see it fielded.

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 86,800 USD - 165,200 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 applicant benefits

• 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
• holidays

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.