Sr Software Engineer - Tactical Communications (Onsite)

Date Posted:

2026-09-01

 Country:

United States of America

 Location:

US-IA-CEDAR RAPIDS-137 ~ 855 35Th St NE ~ BLDG 137

 Position Role Type:

Onsite

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

The ability to obtain and maintain a U.S. government issued security clearance is required.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

 Security Clearance Type:

DoD Clearance: Secret

 Security Clearance Status:

Active and existing security clearance required after day 1

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.

At Collins Aerospace, we don’t just build technology—we engineer mission success. Our Resilient Connectivity Products software teams are on the front lines of innovation, designing and delivering cutting-edge embedded communication solutions that keep military forces around the world safe, connected, and informed—no matter the environment.

We’re looking for a Senior Software Engineer who’s ready to make an impact. In this role, you won’t just write code, you’ll help shape the future of secure communications. From software-defined radios and advanced networking to state-of-the-art cryptographic systems, your work will drive critical real-time communications that enable pilots and soldiers to securely share voice, video, and data when it matters most.

Here, you’ll collaborate with top-tier engineers and industry experts, leveraging advanced technologies to push the boundaries of what’s possible. Whether you're building trusted systems or breaking ground on new innovations, your contributions will directly support mission-critical operations across the globe.

If you're passionate about solving complex challenges, excited by the idea of working on systems that truly matter and driven to grow alongside some of the brightest minds in the field—we want you on our team.

Join Collins Aerospace Mission Systems and help us connect the battlespace of tomorrow!

What You Will Do

YOU will design and develop cutting-edge embedded software, networking and communication products in C/C++ and Rust

YOU will drive project success by directly contributing to requirements, implementation, test development, and certification

YOU will lead initiatives and small teams

YOU will guide your team: supporting cost, schedule and technical performance

What You Will Learn

YOU will gain technical leadership experience and mentorship opportunities to develop talent for yourself and your peers

YOU will collaborate with experts in the software discipline, obtaining hands-on experience with new and innovative technologies

YOU will engage with a multidisciplinary team to develop a cross-functional skillset

YOU will become a subject matter expert on your projects and programs

Qualifications You Must Have

YOU will become a subject matter expert on your projects and programs

U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Experience in the full software development lifecycle

Experience with embedded software development

Experience in Python and C/C++

Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience

Qualifications We Prefer

Active U.S. Department of Defense Clearance

Experience with Linux development environments

Experience with Git or other version control systems

Experience with networking and communications protocols

Experience with Rust programming language

Experience with multithreading and containerization

Comfortable working in Agile/Scrum environments

What We Offer:

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!

Relocation Eligibility

Eligible for relocation

Learn More & Apply Now!

Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions — whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you’ll have your own critical part to play in ensuring our customer succeeds today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today.

* Please consider the following role type definitions 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.

At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other – propel us all higher, again and again.

Apply now and be part of the team that’s redefining aerospace, every day.

Employee Referral Eligible

#MISENG

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 86,800 USD - 165,200 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 th