> Markdown version of [/jobs/ext/1851544-principal-systems-engineer-avionics-development-and-integration-onsite](https://www.wearedevelopers.com/jobs/ext/1851544-principal-systems-engineer-avionics-development-and-integration-onsite). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Systems Engineer - Avionics Development and Integration (ONSITE) - **Company:** RTX - **Location:** Cedar Rapids, IA, United States - **Experience:** Expert - **Salary:** $107,500.0 - $204,500.0 - **Contract:** Permanent contract - **Skills:** Systems Engineering, Python (Programming Language), MATLAB, Software Tools, Subsystems, Test Scripts, DO-178B - **Published:** July 10, 2026 - **Apply:** https://globalhr.wd5.myworkdayjobs.com/REC_RTX_Ext_Gateway/job/US-IA-CEDAR-RAPIDS-105--400-Collins-Rd-NE--BLDG-105/Principal-Systems-Engineer---Avionics-Development-and-Integration--ONSITE-_01858140 ## About the Role The company will offer immigration sponsorship for this position, if needed. The company will seek an export authorization for this role, if required. RTX must be able to obtain and maintain the U.S. export authorization., * 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 * Hands-on experience with Integrated Modular Avionics (IMA) at the system level is required * Strong understanding of Avionics, aircraft Systems, and Subsystems. * Demonstrated ability to work effectively in a collaborative team environment. * Previous experience taking ownership of assigned work, following through on commitments, and delivering quality results. Qualifications we prefer: * Knowledge across multiple Avionics functional areas. * Prior experience with full development cycles, Avionics certification, and a strong understanding of lifecycle activities and deliverables for Avionics programs. * Experience working within regulatory environments, including DO-254, DO-160, DO-178B/C, DO-297, ARP4754A, and FAA/TCCA/EASA standards. * Proficiency in supporting testing activities, including operating rig facilities and troubleshooting during testing phases. * Ability to execute flight test scenarios by leveraging a solid understanding of aircraft operational fundamentals to validate system performance. * Experience with one or more of the following tools/languages is a plus: Python, MATLAB/Simulink, Cameo, or similar engineering tools. * Strong written and verbal communication skills, with the ability to clearly explain technical ideas, assumptions, and issues. * Strong problem-solving skills ## Description We are seeking a highly skilled professional with a strong technical background in Avionics Systems Engineering. The ideal candidate will have prior experience in the development and integration of ARP4754A/DO-297 Integrated Modular Avionics (IMA) Systems, proficient in multiple aircraft subsystems. This is a hands-on position supporting requirements development, requirements-based testing execution, test script development, execution of scenario-based, robustness, and unintended function/behavior testing in a lab environment. Flexibility is necessary to maximize test assets utilization. This is an onsite position in Cedar Rapids, Iowa. What you will do: * Complete assignments involving Design and Requirement Developments activities * On-site execution of requirements-based testing, robustness, and Ad-Hoc testing in a lab environment (schedule flexibility is necessary during formal test phases) * Be responsible for the troubleshooting and reporting of issues resulting from development cycles; the candidate will be capable of providing internal status as well as directly reporting to the OEMs as necessary. * Independently operate the rig facilities during testing phases of the program and during troubleshooting activities. A solid understanding of aircraft operational fundamentals is necessary, as the candidate will be required to execute flight test scenarios to validate system functionality and performance. * Test script development and execution * Produce PDR/CDR packages on aircraft features and presenting them to OEMs * Produce system certification level documentation * Integrate and own SW/HW Work Packages and Avionics features coordinating across multiple subsystem functional areas. * Estimate and bid engineering efforts * Provide regular updates on program status to key stakeholders. * Ensure traceability and compliance across all phases of the development lifecycle, adhering to industry standards and regulatory requirements. * Collaborate effectively with engineers across multiple organizations, fostering a positive and productive team environment. ## Related Videos - [Crew Management System for Airlines: Plan duties for pilots & flight attendants worldwide](https://www.wearedevelopers.com/videos/1444-crew-management-system-for-airlines-plan-duties-for-pilots-flight-attendants-worldwide) - [10M Data Records Lost, Underwater Computing, and Psychedelic Fish - Matthias Geniar](https://www.wearedevelopers.com/videos/1908-10m-data-records-lost-underwater-computing-and-psychedelic-fish-matthias-geniar) - [Leveraging Large Language Models for Legacy Code Translation: Challenges and Solutions](https://www.wearedevelopers.com/videos/1157-leveraging-large-language-models-for-legacy-code-translation-challenges-and-solutions) - [Building a hypercar from scratch](https://www.wearedevelopers.com/videos/607-building-a-hypercar-from-scratch) - [Software stack under and over the hood of the fastest accelerating car in the world](https://www.wearedevelopers.com/videos/221-software-stack-under-and-over-the-hood-of-the-fastest-accelerating-car-in-the-world) - [Agile work at CARIAD – Creating a customer web application for controlling the vehicle ](https://www.wearedevelopers.com/videos/200-agile-work-at-cariad-creating-a-customer-web-application-for-controlling-the-vehicle) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [How to land a developer job in Amsterdam](https://www.wearedevelopers.com/magazine/36-how-to-land-a-developer-job-in-amsterdam) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)