Senior Software Engineer (Hybrid)

RTX (Raytheon); Illinois; Hybrid; USD 120,000 - 160,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Three weeks of vacation

Generous 401(k) plan with matching

Job summary

Collins Aerospace in Rockford, IL is seeking a Senior Software Engineer to develop embedded flight software for electric power distribution and conversion systems. This role covers the full software life cycle—from requirements through certification support.

Work with cross‑functional, geographically distributed teams on safety‑critical software in C, adhering to DO-178B/C and Design Assurance Levels A–C. You will perform timing, memory, and stack analyses, participate in software reviews and

Qualifications

• STEM degree or advanced degree with relevant experience.
• Minimum 5 years in software development or 3 years with advanced degree.
• Experience in safety-critical aerospace software is preferred.

Responsibilities

• Develop embedded flight software for electric power distribution and conversion systems.
• Cover requirements, architecture, design, implementation, integration, testing, verification, and certification support.
• Work with cross-functional, distributed teams to assure DO-178B/C compliance.
• Perform timing, memory, and stack-usage analyses and participate in reviews and SOI audits.
• Drive process improvements and assist with software configuration standards.

Skills

Embedded software

C programming

DO-178B/C knowledge

Safety-critical software

Cross-functional teamwork

Independent work

Requirements analysis

Education

STEM degree

Tools

Polarion

SVN

Telelogic Synergy

Telelogic DOORS

MATLAB

Job description

Date Posted: 2026-09-17

Country: United States of America

Location: US-IL-ROCKFORD-P6 ~ 4747 Harrison Ave ~ 4747 HARRISON AVE-P6

Position Role Type: Hybrid

U.S. Person, U.S. Person, or Immigration Status Requirements:

This job requires a U.S. Person. A U.S. Person is a lawful permanent resident as defined in 8 U.S.C. 1101(a)(20) or who is a protected individual as defined by 8 U.S.C. 1324b(a)(3). U.S. citizens, U.S. nationals, U.S. permanent residents, or individuals granted refugee or asylee status in the U.S. are considered U.S. persons. For a complete definition of "U.S. Person" go here: https://www.ecfr.gov/current/title-22/chapter-I/subchapter-M/part-120/subpart-C/section-120.62

Security Clearance Type:

None/Not Required

Security Clearance Status:

Not Required

Collins Aerospace is seeking a Senior Software Engineer to support the development of embedded flight software for electric power distribution and conversion systems. This role is responsible for the full software development life cycle, including requirements, architecture and design, implementation, integration, testing, verification, and certification support.

The position involves working closely with cross-functional and geographically distributed teams to develop safety-critical aerospace software, primarily in C, while supporting compliance with DO-178B/C and Design Assurance Levels A-C. The engineer will also contribute to software reviews, certification activities, SOI audits, process improvement, and technical analysis involving timing, memory, and stack usage.

The ideal candidate is a strong communicator who can work independently and collaboratively, document technical work clearly, troubleshoot complex software issues, and communicate effectively during internal and external technical reviews.

What You Will Do

Work in a team environment, including with remote team members, engaging in full life-cycle development (planning, requirements, design, verification, and certification/qualification) of electric power distribution and conversion systems, typically developed in C and certified to aerospace standards such as DO-178B/C and Design Assurance Levels A through C.

Participate in the Software Discipline Council to improve and adapt standard work and department practices.

Participate in and/or assist the Software Lead with Stage of Involvement (SOI) audits.

Measure and analyze software designs for equipment and products to ensure current and future business needs are met.

Build and implement procedures that support hardware and software product development and functions.

Operate equipment and computer systems for testing and software design purposes to facilitate operations and ensure established objectives are achieved.

Design, develop, document, test, and debug control and diagnostic systems that incorporate logical and mathematical solutions.

Work with the Software Lead to conduct multidisciplinary research and collaborate with equipment designers in the planning, design, development, and utilization of electronic data processing systems for product and commercial software.

Perform timing, memory, and stack-usage analyses.

Determine end-user needs by analyzing system capabilities and resolving issues related to program intent, output requirements, and input data acquisition.

Ensure hardware and software standards are met.

Design and implement procedures that support hardware and software product development and use.

May develop software configuration standards for company-wide use.

Qualifications You Must Have

Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) unless prohibited by local laws/regulations and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience or in absence of a degree, 9 years of relevant experience

Qualifications We Prefer

Full life-cycle software development experience, from requirements analysis through hardware/software integration and testing.

Knowledge of software development processes.

Knowledge of Collins secondary power distribution products.

Knowledge of Collins products and suppliers is a plus.

Experience with Polarion , SVN, Telelogic Synergy, Telelogic Rational DOORS, and MATLAB.

Ability to work independently with minimal supervision.

Strong presentation and communication skills, with experience delivering information to leadership and cross-functional teams.

Demonstrated ability to work independently and manage priorities in a fast-paced, dynamic environment.

What We Offer

Benefits

Some of our competitive benefits package includes:

• 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 disabil