Software Engineer II

RTX (Raytheon); Cambridge (MA); On-site; USD 69,000 - 131,000; Full time

Job summary

RTX BBN Technologies in Cambridge, MA seeks new or recent graduates to join the Physical Sciences and Systems group. You will work on embedding software generation, testing, and research, focusing on C++, C, and Linux to design and prototype multi-domain system architectures.

You will contribute to projects that apply advanced algorithms for detection, classification, localization, and tracking, and you will help evaluate designs in realistic mission scenarios, working with government clients

Qualifications

• Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, or related field with 2+ years of experience, or a master's degree in the disciplines.
• Ability to obtain and maintain a U.S. government security clearance; U.S. citizenship required.
• Experience in software design, simulation, analysis, and implementation.
• Experience programming in C++ or other modern OO language in the Linux development environment.

Responsibilities

• Developing and implementing sophisticated detection, classification, localization, and tracking (DCLT) algorithms against state-of-the-art threats in high-noise environments
• Designing and implementing complex software to optimize sensor system performance
• Designing and implementing software for the guidance and control of autonomous vehicles
• Supporting real time evaluation of designs in realistic mission scenarios and operational analysis
• Optimizing algorithm designs for highest performance

Skills

C++ development

Linux development

Multithreading

Software design

Real-time processing

Python

Bash

Education

Bachelor's degree in CS/CE/EE or related field

Master's degree in related disciplines

Tools

Git

Valgrind

GDB

Google FlatBuffers

Armadillo

REST API

Job description

Date Posted: 2026-09-15

Country: United States of America

Location: US-MA-CAMBRIDGE-BBN01 ~ 10 & 50 Moulton St ~ MOULTON B2

Position Role Type: Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required. 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 after day 1

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 Systems, 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 one of RTX's premier research and development centers providing advanced systems and services for commercial, military and government customers worldwide. Our diverse research portfolio combines the best technologies to deliver innovative, custom solutions with real-world benefit.

At RTX BBN Technologies, we develop new science by applying radical cross-disciplinary techniques to prototype systems in order to prove concept viability. This is especially evident in our Physical Systems and Sciences group, located in Cambridge, Massachusetts, where scientists and engineers anticipate the future in both very large and very small-scale scientific systems that often need to survive challenging operational environments.

The following position is to join our BBN Technologies team:

Role Overview:

We are seeking qualified and eager new or recent graduates to join our Physical Sciences and Systems group in Cambridge, Massachusetts. You will join a project team designing, analyzing, and prototyping innovative multi-domain system architectures. You will contribute to an environment focused on embedded software generation, testing, and research with a focus in C++, C, and Linux. Our world-class team works with a broad range of Government agencies to solve problems that are both technically challenging and have a real operational impact.

What You Will Do:

• Developing and implementing sophisticated detection, classification, localization, and tracking (DCLT) algorithms against state-of-the-art threats in high-noise environments
• Designing and implementing complex software to optimize sensor system performance
• Designing and implementing software for the guidance and control of autonomous vehicles
• Supporting real time evaluation of designs in realistic mission scenarios and operational analysis
• Optimizing algorithm designs for highest performance

Qualifications You Must Have:

• Typically requires a bachelor's degree in an applicable discipline (i.e., Computer Science, Computer Engineering, Electrical Engineering, or related field) and 2 years of relevant professional work experience or a master's degree in the disciplines above
• The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
• Prior experience in software design, simulation, analysis, and implementation
• Classroom, project, or prior work experience programming in C++ or another modern object-oriented language in the Linux development environment

Qualifications We Prefer:

• Experience with scripting languages such as Python and Bash
• Experience with Linux development tools such as git, Valgrind, and gdb
• Exposure to development libraries like Google FlatBuffers, Armadillo, and REST API
• Experience with multithreaded applications, inter-process communication, and resource sharing
• Exposure to working with systems with real-time processing requirements

Work Location : Onsite - Cambridge, MA

Please consider the following role type definition as you apply for this role:

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

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 68,900 USD - 131,100 USD. The salary range provided is a good faith estimate representative of all experience l