Principal Software Test Engineer; Onsite

Principal Software Test Engineer (Onsite)

We’re looking for a Principal Software Test Engineer to join our team in Cedar Rapids, IA, and take a leading role in shaping the future of military communications.

In this role, you’ll lead the testing and validation of next-generation systems powering UAVs, fighter jets, aircraft carriers, and ground vehicles. From advanced satellite communications and cryptography to cutting-edge embedded computing architectures, you’ll ensure our solutions meet the highest standards for speed, security, and resilience.

What You Will Do:

• Design, create, and integrate the software components of hardware test stations for factory and engineering labs.
• Work hands on, with test hardware equipment to develop software which tests military communication hardware products during the build and manufacturing process.
• Analyze and understand requirements to ensure testability.
• Develop clear and concise test objectives that guide the testing process and ensure comprehensive coverage.
• Write software for both manual and automated test cases, with an objective to detect manufacturing defects, improve product quality and increase manufacturing yields.
• Analyze test results for failures and discrepancies.
• Work closely with other test engineers and product developers to verify product hardware is built correctly.
• Coordinate and collaborate with Systems, Electrical and Mechanical engineering disciplines.
• Help manage work across multiple programs.
• Mentor, lead, and review work for lower-level engineers.

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.
• 3+ years experience programming in C# and Python languages.
• 3+ years Experience with manual use or automation of test equipment such as oscilloscopes, network analyzers, digital multimeters, and other equipment.
• 3+ years Experience in validation, verification, testing, and requirements analysis.
• Prior experience leading and managing projects.

Qualifications We Prefer:

• Active Secret security clearance.
• Strong communication, analytical, and problem-solving skills.
• Experience with SCPI commands, bug tracking, and test management tools.
• Knowledge of software testing methods (functional, integration, regression, performance).
• Proficiency with Git/Subversion, Atlassian tools, and Agile (SAFe) environments.
• Background in networking (TCP, UDP, Telnet) and embedded protocols (I2C, SPI, UART).
• Experience with Linux development and multi-threaded applications in C, C++, or Java.
• High attention to detail with a track record of delivering quality results.

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,  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!

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.