[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All RTX jobs](https://jobs.opennash.com/companies/rtx/) · [Search jobs](/search/) RTX · CEDAR RAPIDS, IA, US # Software Engineer I (Onsite) CEDAR RAPIDS, IA, US On-site Full-time Software Engineering Listed on RTX’s official careers site. Posted October 11, 2026. Check that it is still open and apply there. [Apply on RTX’s careers site →](https://globalhr.wd5.myworkdayjobs.com/REC_RTX_Ext_Gateway/job/US-IA-CEDAR-RAPIDS-182--1100-Cimmie-Ave-Ne--BLDG-182/XMLNAME-2026-Collins-Full-Time---System-Integration-Software-Engineer-I---Cedar-Rapids--IA--Onsite-_01850421) [OpenNash Jobs](https://jobs.opennash.com/) / [RTX](https://jobs.opennash.com/companies/rtx/) / Software Engineer I (Onsite) ## Job description ### Date Posted 2026-10-09 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 Are you ready to explore the world of aerospace and defense? Do you want to learn from and collaborate with some of the greatest minds in the industry? At RTX, our internships, co-ops, and full-time careers provide an exceptional foundation to work on complex problems, advance your skills and create a safer, more connected world. Discover opportunities to make a difference at RTX. ### What You Will Do Do you want to build integrated systems on world-class Collins platforms? Do you enjoy pulling together a system to create a bigger picture? Do you enjoy networks and watching data flow through a system? As a system integration software engineer, you will provide the operating environment for our application teams and support them with tools and troubleshooting for integration points between applications. Our Military Avionics Central System Integration team works across engineering disciplines to deliver world-class avionics systems to warfighters on tankers, helicopter, and cargo aircraft. You will create and maintain system configuration files, including configuration of operating systems, network interfaces, and ARINC-429 and MIL-STD-1553 bus I/O. You will assist our Collins and third-party teams with lab systems, manage the software configuration on lab assets, and support hardware/software troubleshooting in our system integration facilities. You will support the systems engineering teams with measurement of system technical performance measures, including CPU throughput, RAM utilization, and network and bus utilization. You will create the Collins Avionics system field-loadable mediasets and manage the customer release of top-level Collins software products. What You Will Learn You will learn the artifacts for system configuration for Collins avionics hardware. You will learn about the protocols used on the networks and buses between systems and subsystems in our avionics solutions. You will learn the key software integration points for multiple avionics subsystems, including OS configurations, device drivers, network I/O, memory access, and avionics bus data access. ### Qualifications You Must Have Bachelor’s degree in Science, Technology, Engineering or Mathematics (STEM), such as Computer Science, obtained prior to start Experience with C/C++/Java programming languages Experience with Python scripting Experience may be obtained through on‑the‑job experience, research, coursework, or projects. We Prefer Experience in aerospace and defense ### What We Offer Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. ### At RTX, we value Safety, Trust, Respect, Accountability, Collaboration, and Innovation. Relocation, if eligible Learn More & Apply Now! Please consider the following role type definition as you apply for this role. ### Onsite Employees who are working in onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products. As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote. The salary range for this role is 57,200 USD - 108,800 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills. Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement. Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance. This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply. RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window. 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. ### Privacy Policy and Terms Click on this link to read the Policy and Terms ## At a glance - Posted by the employer: Oct 11, 2026 - First seen by OpenNash: Oct 13, 2026 - Last checked: Oct 13, 2026 - Listed for: 2 days - Location: CEDAR RAPIDS, IA, US - Work arrangement: On-site - Employment type: Full-time[Apply on RTX’s careers site →](https://globalhr.wd5.myworkdayjobs.com/REC_RTX_Ext_Gateway/job/US-IA-CEDAR-RAPIDS-182--1100-Cimmie-Ave-Ne--BLDG-182/XMLNAME-2026-Collins-Full-Time---System-Integration-Software-Engineer-I---Cedar-Rapids--IA--Onsite-_01850421) ## More jobs at RTX ### [Principal Software Engineer - Military Flight Plan Server (Onsite)](https://jobs.opennash.com/companies/rtx/jobs/af2ea0ca1de17676cf44/) CEDAR RAPIDS, IA, US ### [Senior Principal Software Engineer - Avionics Simulation (Onsite)](https://jobs.opennash.com/companies/rtx/jobs/ea11a00797b5852c4047/) CEDAR RAPIDS, IA, US ### [Senior Software Engineer - Avionics Military FMS (Onsite)](https://jobs.opennash.com/companies/rtx/jobs/cf2b9960dce3a814d4d6/) CEDAR RAPIDS, IA, US ### [Senior Software Engineer - Military Flight Management Product Owner / Technical Lead (Onsite)](https://jobs.opennash.com/companies/rtx/jobs/d569c186f0d9c957d8f1/) CEDAR RAPIDS, IA, US ### [Software Engineer Co-op (Summer/Fall 2027) - Onsite](https://jobs.opennash.com/companies/rtx/jobs/fa89d5dd7ff64dc134af/) CEDAR RAPIDS, IA, US ## Similar jobs at other companies ### [Software Developer Intern III, Summer 2027 (Onsite)](https://jobs.opennash.com/companies/bae-systems/jobs/361ef757168c34137532/) BAE Systems · Rome, New York, United States ### [Software Engineering Intern II, Summer 2027 (Onsite)](https://jobs.opennash.com/companies/bae-systems/jobs/f224d88e3c1b8d9dd7d9/) BAE Systems · Totowa, New Jersey, United States ### [Entry Level & Senior Software Engineer, AI Software Platform (Onsite)](https://jobs.opennash.com/companies/qualcomm/jobs/cf3ad2fb979fd0b78b2c/) Qualcomm · San Diego, California, United States of America ### [Entry level & Senior Software Engineer, Core AI Software (Onsite)](https://jobs.opennash.com/companies/qualcomm/jobs/7d3fea713642238fd5b2/) Qualcomm · San Diego, California, United States of America ### [Onsite Wireless Installation Engineer](https://jobs.opennash.com/companies/general-dynamics/jobs/212842d3cec5c07af38f/) General Dynamics · Fairbanks, AK, US [Software Engineering jobs](/functions/software-engineering/) OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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