Cyber Research Software Engineer II

Role Overview

RTX BBN Technologies is looking for a Cyber Research Software Engineer to develop systems and software to deter and defeat our Nation’s adversaries.

• Perform advanced software development in C, with an emphasis on low‑level operations.
• Implement software and systems across a variety of architectures and operating systems.
• Analyze systems to understand how they work and what happens when they break.
• Develop unique networking protocols and communication schemes.
• Operationalize our code by thoroughly testing, documenting, and integrating with sponsor systems.
• Travel up to 15%.

• Bachelor’s Degree in Computer Science, Computer Engineering, Electrical Engineering, Mathematics, or Physics and a minimum of 2 years of prior relevant experience, or an advanced degree in a related field.
• Coursework and/or experience designing, developing, modifying, and debugging software or hardware systems or prototypes, with concrete examples of coding projects.
• Programming skills in one or more of: C, C++, Rust, Java, or Python.
• Active and transferable Secret U.S. Government Security Clearance required on day one.

• Experience with system architecture design, prototyping, and technical project leadership.
• Experience with assembly language (x86/64, ARM, PPC, MIPS, etc.).
• Understanding of network protocols (TCP/IP stacks, wire‑level protocols, RF communications, BGP, etc.).
• Familiarity with security concepts (confidentiality/integrity/availability, authentication/authorization, etc.).
• Reverse engineering skills using tools such as IDA, Ghidra, and Binary Ninja.
• Capture the Flag (CTF) experience.
• Strong verbal and written communication skills in relevant technology topics.

• Robust total rewards package with compensation, healthcare, wellness, retirement, and work/life benefits.
• Salary range: $68,900 – $131,100 USD.
• Career development and recognition programs.
• Parental leave (including paternal) and flexible work schedules.
• Achievement awards, educational assistance, and child/adult backup care.
• Relocation assistance available.
• Onsite at our Cambridge, Massachusetts headquarters.

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.