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Sierra Space Logo

Software Test Engineer III (Clearance Required)

Sierra Space

$126,610 - $174,089
Dec 4, 2025
Centennial, CO, US
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Sierra Space is looking to solve the problem of ensuring the functionality, performance, and reliability of aerospace software systems used in space vehicles and other aerospace applications.

Requirements

  • Expertise in one to multiple programming languages
  • Advanced understanding of software development principles
  • Experience with different software development methodologies such as Agile and Scrum/Kanban
  • Proficiency with Linux-based and Windows-based software development environments
  • Experience with automated testing tools and frameworks
  • Knowledge of software testing methodologies and best practices
  • Familiarity with continuous integration and continuous deployment (CI/CD) processes

Responsibilities

  • Developing and executing test plans, cases, and procedures to ensure software functionality, performance, and reliability
  • Creating and reviewing automated test scripts
  • Collaborating with developers to design effective test strategies
  • Managing the defect lifecycle from discovery to resolution
  • Optimizing testing processes
  • Performing regression testing
  • Maintaining test documentation

Other

  • Requires bachelor's degree in a related field (or equivalent work experience in lieu of degree or master's +3 yrs experience)
  • Typically, 5+ years of related experience
  • An active Top Secret U.S. Security Clearance is required
  • U.S. Citizenship status is required as this position needs an active U.S. Security Clearance for employment
  • Strong communication and interpersonal skills, with the ability to effectively convey complex technical concepts to both technical and non-technical stakeholders