Senior Software Engineer - Core Systems & Libraries (Onsite)

Prattwhitney; Huntsville (AL); On-site; USD 86,800 - 165,200; Full time

Benefits offered by this job

Medical insurance

401(k) match

Flexible schedules

Paid time off

Job summary

Collins Aerospace in Huntsville, Alabama, is seeking a Senior Software Engineer to architect and deliver core software for avionics platforms. You will build libraries and tools, ensuring DO-178 compliance and safety-critical standards.

The role emphasizes leadership, cross-functional collaboration, and engagement with customers and regulators, with travel <10% domestically and internationally.

Qualifications

• Requires STEM degree and 5+ years experience, or an advanced degree with 3+ years.
• Experience designing software architecture in aerospace or safety-critical environments.
• Demonstrated ability to lead technical execution and customer engagements.

Responsibilities

• Architect and develop core software components, libraries, and tools for avionics platforms.
• Drive technical direction across development and verification for safety-critical software (DO-178).
• Develop software requirements, decomposition, and traceability for complex systems.
• Develop and verify software using modern C++ and OO design principles.
• Create DO-178 certification artifacts, including DAL-A deliverables.
• Engage with customers and regulatory authorities during certification efforts.
• Collaborate cross-functionally with engineering, program leadership, and customers.

Skills

Software architecture

C++

DO-178

Safety-critical software

Leadership

Education

STEM degree

Advanced degree

Tools

VxWorks

Git

JIRA

Job description

Overview

Join the Collins Aerospace Core Systems & Libraries team and help build the software backbone that powers modern aircraft. We are looking for a Senior Software Engineer who enjoys solving complex problems and delivering high‑impact solutions in safety‑critical environments. In this role, you will architect and develop core software components, libraries, and tools that enable scalable, certifiable avionics platforms.

Responsibilities

• Develop the architecture and design of core software components, libraries, and tooling aligned to 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.
• Develop and verify software using modern C++ and object‑oriented design principles.
• Develop DO‑178 certification artifacts, including DAL‑A deliverables.
• Perform certification efforts, including engagement 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.
• Willing and able to travel as required (domestic and international <10%).

What You Will Learn

Gain hands‑on experience with cutting‑edge and emerging technologies that are 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.

Qualifications

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of five years prior relevant experience, or an advanced degree in a related field and a minimum of three years of experience.
• U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract.
• Proven experience designing and developing software architecture, libraries, or platform‑level components within an aerospace or safety‑critical environment.
• Demonstrated ability to lead technical execution of tasks, including customer engagement and presenting stakeholders.
• Hands‑on experience supporting safety‑critical airborne software development and certification activities (e.g., requirements, verification, or certification artifacts).

Preferred Qualifications

• Hands‑on experience supporting DO‑178 software development and certification activities (e.g., 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 – DAL A 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).

Benefits

Salary range: $86,800 - $165,200 USD.

• Medical, dental, and vision insurance.
• Life insurance and short‑term/disability/long‑term disability coverage.
• 401(k) match.
• Flexible spending accounts.
• Flexible work schedules.
• Employee assistance program.
• Employee Scholar Program.
• Parental leave, paid time off, and holidays.
• Annual short‑term and/or long‑term incentive compensation programs (subject to business performance).

Equal Opportunity Employer

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 Section503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.