Principle Software Engineer - Test Engineering (Onsite)

RTX (Raytheon); Cedar Rapids (IA); On-site; USD 120,000 - 180,000; Full time

Job summary

RTX Collins Aerospace is seeking a software test engineer to design, develop, and integrate software for hardware test stations used in factory and lab environments. You will work hands-on with test hardware to create software that tests military communication hardware during manufacturing, ensuring testability and comprehensive coverage.

The role requires strong C# and Python skills, experience with automated tests, and a track record in validation and verification activities.

Qualifications

• Active and transferable DoD Secret clearance required before start.
• Degree in STEM and 8+ years of experience, or an advanced degree with 5+ years.
• Experience programming in C# and Python.
• Experience with manual or automated test equipment.
• Experience in validation, verification, testing and requirements analysis.
• Experience leading and managing projects.

Responsibilities

• Design, create, and integrate software components of hardware test stations.
• Develop software for tests of military communication hardware during build/manufacturing.
• Analyze requirements to ensure testability and define test objectives.
• Write software for manual and automated test cases to detect defects and improve yields.
• Analyze test results for failures and discrepancies.
• Collaborate with Systems, Electrical and Mechanical engineering disciplines.
• Mentor, lead, and review work for lower-level engineers.

Skills

C# programming

Python programming

Test automation

Leadership

Test engineering

Education

Bachelor's degree in STEM

Advanced degree in related field

Tools

Oscilloscopes

Network analyzers

Digital multimeters

Git

SVN

Linux

Atlassian tools

Job description

Date Posted:2026-09-15Country:United States of AmericaLocation:US-IA-CEDAR RAPIDS-106 ~ 400 Collins Rd NE ~ BLDG 106Position Role Type:OnsiteU.S. Citizen, U.S. Person, or Immigration Status Requirements:Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearanceSecurity Clearance Type:DoD Clearance: SecretSecurity Clearance Status:Active and existing security clearance required on 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.

What You Will Do:

• Design, create, and integrate the software components of hardware test stations for factory and engineering labs which include:
• 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:

• Active and transferable Secret U.S. government issued security clearance is required prior to start date.
• 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 programming in C# and Python languages
• Experience with manual use or automation of test equipment such as oscilloscopes, network analyzers, digital multimeters, and other equipment
• Experience in validation, verification, testing, and requirements analysis
• Experience leading and managing projects

Qualifications We Prefer:

• Knowledge of software testing methodologies (functional, integration, regression, performance, etc.) and best practices
• Experience with bug tracking and test management tools.
• Experience with configuration management tools such as GIT or SubVersion (SVN)
• Experience in networking fundamentals (TCP, UDP, Telnet, etc...)
• Experience in embedded communication protocols (I2C, SPI, UART, etc...)
• Work in an agile environment (SAFe)
• Experience with Atlassian tools suite
• Knowledge and\or experience in multi-threaded embedded application software engineering development and integration
• Comfortable working with languages such as C, C++, and Java
• Experience working in a Linux development environment
• Attention to detail to identify and document any anomalies or inconsistencies in software performance.
• Strive t