Senior Principal Software Engineer
RTXAbout the role
Date Posted:
2026-08-19Country:
United States of AmericaLocation:
US-MN-ST LOUIS PARK-5775 ~ 5775 Wayzata Blvd ~ WAYZATA, Ste 630Position Role Type:
HybridU.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 clearanceSecurity Clearance Type:
DoD Clearance: Top SecretSecurity Clearance Status:
Active and existing security clearance required on day 1For over 70 years, RTX BBN Technologies (BBN) has solved challenging problems through research, exploration, development, and prototyping. Our Intelligent Software & Systems department is seeking qualified applicants to work on forward looking and projects in the areas of distributed systems, artificial intelligence, cyber security, information management, and virtual technologies.
Role Overview
We are looking for experienced, creative, and highly motivated Sr. Principal Software Engineer who can hit the ground running with development tasks, interact with current customers, contribute to one or more project teams, and contribute to BBN’s growth of current and new research areas. As senior member of the team, responsibilities will also include development and presentation of reports documenting design, test and evaluation and technical results.
What You Will Do
Develop and test software using Java and Python.
Lead complex software development efforts and technical solutions.
Collaborate with engineers, scientists, customers, and cross-functional teams.
Support customer engagements, demonstrations, and technical evaluations.
Develop technical documentation and present project results.
Estimate development tasks and support long-term project planning.
Contribute to new and emerging BBN research areas.
Qualifications You Must Have
Typically requires a Bachelor’s in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 10 years of prior software development experience or an Advanced Degree in a related field and minimum 7 years experience.
10+ years of Java development
10+ years of Python experience
Experience interacting with customers, suppliers, and/or other organizations / disciplines.
An active and transferable U.S. government issued security clearance is required prior to start date.
Qualifications We Prefer
Ability to lead complex development efforts
Experience with estimating software tasks for extended periods of time (i.e. longer than 12 months).
Android development experience a plus
Network programming (e.g., sockets) or computer networking experience a plus
JavaScript experience a plus
Experience with the Team Awareness Kit (TAK) is a plus
AI/ML development skills are a plus
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.
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 diverse and 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
Learn More & Apply Now!
Hybrid assignment: On-Site work at custome
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