Senior Software Engineer - Core Systems & Libraries; Onsite

Senior Software Engineer

Location:

Onsite, Cedar Rapids, Iowa. U.S. citizenship required.

• Develop the architecture and design of core software components, libraries, and tooling aligned with avionics system requirements.
• Drive technical direction and execution across development and verification activities for safety‑critical software (DO‑178).
• Develop software requirements, decomposition, and traceability across complex systems.
• Create and verify software using modern C++ and object‑oriented design principles.
• Produce DO‑178 certification artifacts, including DAL‑A deliverables.
• Lead certification efforts, engaging with customers and regulatory authorities.
• Conduct and contribute to peer reviews to ensure quality, consistency, and compliance across the lifecycle.
• Collaborate cross‑functionally with engineering, program leadership, and customers to align technical solutions with program objectives.
• Travel domestically and internationally as required (under 10%).

• Gain hands‑on experience with cutting‑edge technologies shaping the future of avionics and aerospace systems.
• Build end‑to‑end expertise across the full product lifecycle, from requirements and design through verification and delivery of safety‑critical systems.
• Develop a deep understanding of software certification (DO‑178) and how world‑class avionics products meet rigorous regulatory standards.
• Learn how to design, scale, and sustain software product lines that support a wide range of platforms and global customers.

• STEM degree and minimum 5years of relevant experience, or an advanced degree and minimum 3years of experience.
• U.S. citizenship.
• Proven experience designing and developing software architecture, libraries, or platform‑level components in an aerospace or safety‑critical environment.
• Demonstrated ability to lead technical execution of tasks, including customer engagement and stakeholder presentations.
• Hands‑on experience supporting DO‑178 software development and certification activities (requirements, verification, or certification artifacts).

• Experience with C++ and VxWorks.
• Experience writing high‑level and low‑level requirements.
• Experience writing test cases and automated test procedures.
• Experience with civil certification DO‑178–DALA preferred.
• Experience with design and development of flight management systems, software, aircraft applications, or middleware.
• Familiarity with revision control concepts and tools (e.g., GIT, Subversion, JIRA).

• Medical, dental, and vision insurance.
• Three weeks of vacation for newly hired employees.
• Generous 401(k) plan with employer matching and separate 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,  protection.
• Birth, adoption, and parental leave benefits.
• Ovia Health, fertility, and family planning.
• Adoption assistance.
• Autism benefit.
• Employee assistance plan with 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.

$86,800 – $165,200 USD per year.

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.