Principal Embedded Software Engineer (Onsite)

Principal Engineer – Strategic Nuclear Deterrence

Location: Richardson, Texas (US-TX-RICHARDSON). Onsite.

What You Will Do

• You will provide direct support to stakeholders to answer questions and solve technical issues.
• You will develop design and implement software that satisfies customer and certification needs.
• You will produce high-quality software builds in an integrated test environment.
• You will derive software requirements, create UML design diagrams, and code solutions from UML design diagrams.
• You will communicate and collaborate with other Senior and Principal level Software Engineers, mentoring junior engineers/interns.
• You will assist in the software requirements verification and test phases.

What You Will Learn

• You will have opportunity to learn and grow knowledge within the Strategic Nuclear Deterrence domain.
• You will gain valuable experience & an opportunity to lead, including roles such as Scrum Master, Product Owner, Cost Account Manager, and Software Lead.
• You will become a subject matter expert and leader in communication technologies with exposure to the variety of business and products in an ever-evolving field.

Qualifications You Must Have

• Minimum 5 years of professional experience in embedded software development with real time operating systems (RTOS).
• Experience in Agile development methods, including Scrum, automated testing, and continuous integration.
• Familiarity with Model-Based Systems Engineering (MBSE).
• Active and transferable Secret U.S. government issued security clearance is required prior to start date.
• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience.

Qualifications We Prefer

• Exposure to Earned Value Management (EVM) and understanding of how test progress integrates into broader program performance metrics.
• Background in hardware-software integration, hardware-in-the-loop (HIL) testing, or working within real-time embedded environments.
• Familiarity with test automation frameworks, test management suites, defect tracking tools, and requirements management platforms.
• Foundational understanding of Model-Based Systems Engineering (MBSE) practices and tools, including exposure to architecture models and interface control documents.

What We Offer

• Medical, dental, and vision insurance
• Three weeks of vacation for newly hired employees
• Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
• Tuition reimbursement program
• Student Loan Repayment Program
• Life insurance and disability coverage
• Optional coverages: pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection
• Birth, adoption, parental leave benefits
• Ovia Health: fertility, and family planning
• Adoption Assistance
• Autism Benefit
• Employee Assistance Plan, including up to 10 free counseling sessions
• Healthy You Incentives, wellness rewards program
• Doctor on Demand: virtual doctor visits
• Bright Horizons: child and elder care services
• Teladoc Medical Experts: second opinion program
• Maybe eligible for relocation
• Sign On Bonus Eligible.
• And more!

Other Information

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.

EEO Statement

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.