Principal Software Engineer - Military Flight Plan Server (Onsite)

Date Posted: 2026-08-24 Country: United States of America Location: US-IA-CEDAR RAPIDS-182 ~ 1100 Cimmie Ave Ne ~ BLDG 182 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract. Security Clearance Type: None/Not Required Security Clearance Status: Not Required At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense. Collins Aerospace is currently seeking a Principal Software enginee r to join our Flight Plan Server   (FPS)   team with   our Military Avionics Flight Management Applications department   located   in Cedar Rapids, Iowa. The engineer that fills this role will   work alongside a team of   around six FPS subject matter experts that   support fixed and rotary wing platforms   across the entire department .   Product Summary:   CAAS/Flight 2 Flight Management Solutions - Our signature products for Military Avionics and Helicopters as part of the Collins Integrated Avionics Systems, fielded on thousands of   aircraft   today, at this moment. Specific capabilities include FMS (Flight Management Systems), Performance Application, System Manager, and Flight Plan Server (FPS). Please see the following links for more details:       https://www.rockwellcollins.com/Products-and-Services/Defense/Avionics/Integrated-Cockpit-Solutions…     https://www.rockwellcollins.com/Products-and-Services/Defense/Avionics/Integrated-Cockpit-Solutions…     What You Will Do:   You will develop software for our fixed and rotary winged platforms as a member of the   Graphical   Flight   Plan Server   engineering team.   You will provide mentorship and guidance to other members of the development team in software development best practices and how to solve our hardest technical challenges.   You will implement and verify updates to the flight management software for fixed and rotary wing platforms.   You will implement and verify updates to the graphical flight planning and display software for fixed and rotary wing platforms.   You will communicate plans and status on your assigned stories to your agile team members, internal stakeholders, and external customers.   You will coordinate with the platform engineering team and other software domain teams to   identify   and track dependencies for shared features.   You will champion knowledge sharing, elevating department   expertise   through both formal training and informal mentoring.    What You Will Learn:   You will take program s   through the full software development cycle, starting with   proposal inputs   and ending with black label production delivery.   You will deepen your   expertise   in   cutting-edge   avionic s   systems, positioning you as a subject matter expert in military software applications.   You will expand your impact on the field of avionics, contributing to software solutions that increase the operational capabilities of   aircraft   worldwide.   Qualifications You Must Have:   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.   Experience in the design and development of deliverable software (production or consumer facing)   Experience with embedded software development   Experience with   Ada or C/C++    Python scripting experience   Qualifications We Prefer:   Defense or Aerospace industry experience   DO-178 or similar certification-based development experience   Familiarity with ARINC 429 and 661 communication    Familiarity with Ethernet protocols (UDP, TCP,   etc )    Experience with Graphical Flight Planning and/or Flight Display software    Experience with agile software development       Excellent communication (written, verbal, and interpersonal).       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 disability coverage    Optional coverages you can buy 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     And more!    This role may be eligible for relocation. Learn More & Apply Now! Collins Aerospace makes modern flight possible. Of course, that wouldn’t be possible without the capabilities and technologies of our organization,