Astroscale U.S. Inc. is seeking a Senior Software Test Engineer to join our Denver, Colorado office. In this role, you will design and develop test plans and test cases for software and hardware systems used in our satellite mission programs, lead test campaigns spanning spacecraft flight and ground systems, and participate in design reviews to ensure software quality. You will create and execute system-level verification, validation, integration, and test plans; drive improvements to software testing tools and processes; prototype software to validate design concepts; and collaborate with internal partner organizations and third-party organizations. Qualifications include 8+ years of professional software engineering experience with 3+ years in software test development; proficiency in Python; experience with C and/or C++; familiarity with Git, Docker, cloud services, CI/CD practices, and software/hardware integration; Bash and Linux proficiency; strong verbal and written communication skills; and a Bachelor's, Master's, or PhD in computer science, computer engineering, or a related field. Salary range: USD 130,000 – USD 155,000. The application deadline is August 9, 2026. Astroscale U.S. is a U.S. Government registered, export control compliant company and an E-Verify employer; applicants should be a U.S. person or citizen.

Astroscale U.S. Inc. is seeking a Senior Software Test Engineer to join our Denver, Colorado office. In this role, you will design and develop test plans and test cases for software and hardware systems used in our satellite mission programs, lead test campaigns spanning spacecraft flight and ground systems, and participate in design reviews to ensure software quality. You will create and execute system-level verification, validation, integration, and test plans; drive improvements to software testing tools and processes; prototype software to validate design concepts; and collaborate with internal partner organizations and third-party organizations. Qualifications include 8+ years of professional software engineering experience with 3+ years in software test development; proficiency in Python; experience with C and/or C++; familiarity with Git, Docker, cloud services, CI/CD practices, and software/hardware integration; Bash and Linux proficiency; strong verbal and written communication skills; and a Bachelor's, Master's, or PhD in computer science, computer engineering, or a related field. Salary range: USD 130,000 – USD 155,000. The application deadline is August 9, 2026. Astroscale U.S. is a U.S. Government registered, export control compliant company and an E-Verify employer; applicants should be a U.S. person or citizen.