Senior Principal Software Engineer; ONSITE

Position Overview

Sr Principal Software Engineer – Onsite

Date Posted:

Location:

US-TX-RICHARDSON-461 – 3200 E Renner Rd, Renner Building 461, Richardson, TX

Security Clearance:
DoD Secret – Active and existing clearance required after day 1. U.S. citizenship required.

Employer:

Collins Aerospace, an RTX company.

• Apply expert technical knowledge to solve highly complex challenges and deliver innovative software solutions that support customer and business objectives.
• Lead software engineering activities throughout the software lifecycle, including development, integration, testing, deployment, modernization, and sustainment efforts.
• Develop, implement, and enhance software solutions, technical approaches, processes, and standards across a variety of technologies, products, and mission areas.
• Partner with multidisciplinary teams, customers, and stakeholders to solve complex technical challenges and deliver mission‑critical capabilities.
• Drive technical solutions supporting secure communications, mission systems, cybersecurity, autonomous systems, embedded software, and software modernization.
• Influence technical direction, engineering strategies, and program outcomes through the application of deep domain expertise.
• Communicate technical concepts, recommendations, and program status to audiences ranging from engineering teams to customers and executive leadership.
• Serve as a subject matter expert and technical authority within the discipline.

• Experience developing software applications, systems, or solutions using programming languages such as C/C++, Java, or similar languages.
• The ability to obtain and maintain a U.S. government‑issued security clearance is required. U.S. citizenship is required.
• Typically requires a STEM degree and a minimum of 10 years of prior relevant experience, or an advanced degree in a related field and a minimum of 7 years of experience.

• Active and transferable Secret or Top Secret U.S. government‑issued security clearance.
• Experience working within the software development lifecycle, including design, development, integration, testing, and maintenance.
• Experience with embedded software, real‑time operating systems (RTOS), Linux, Dev Sec Ops , CI/CD pipelines, automated testing frameworks, or related development environments.
• Knowledge of cybersecurity principles, secure software development practices, or software assurance methodologies.
• Experience supporting technical domains such as mission systems, communications systems, cybersecurity, autonomous systems, or related domains.

• Medical, dental, and vision insurance
• Three weeks of vacation for newly hired employees
• Generous 401(k) plan with employer matching and lifetime income strategy option
• Tuition reimbursement program
• Student loan repayment program
• Life and disability insurance
• Optional pet, home, and auto insurance, additional life and accident insurance, critical illness insurance, group legal,  protection
• Birth, adoption, and parental leave benefits
• Ovia Health, fertility, and family planning resources
• Adoption assistance and autism benefit
• Employee assistance program with up to 10 free counseling sessions
• Healthy You incentives and wellness rewards program
• Doctor on Demand and virtual doctor visits
• Bright Horizons child and elder care services
• Teladoc Medical Experts second opinion program
• Relocation assistance available

Salary range: $132,400 – $251,600 USD.

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, 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 applicable law.