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Sierra Space Logo

Sr Software Engineer (Contractor, Clearance Required)

Sierra Space

$73 - $101
Nov 7, 2025
Centennial, CO, US
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Sierra Space is building a platform in space to benefit life on Earth and alter the course of humanity. The company is developing advanced mission payloads, electronic systems, integrated aircraft, and orbital and space exploration systems, requiring software engineers to define, design, develop, test, certify, and improve cutting-edge software products.

Requirements

  • Expertise in one to multiple programming languages and advanced understanding of software development principles
  • Ability to design and architect complex software systems
  • Experience with different software development methodologies such as Agile and Scrum/Kanban
  • Hands-on experience with the Open Mission Systems (OMS) and Universal Command and Control Interface (UCI) standards
  • Advanced expertise in requirements management and system modeling tools, such as No Magic Cameo
  • Proven experience in software architecture, including functional decomposition, interface definition, and software design
  • Strong understanding and practical application of software design patterns

Responsibilities

  • define, design, develop, test, certify and improve cutting-edge software products
  • perform coding, debugging, testing, and troubleshooting of systems and software throughout our development process
  • design and development of new software products throughout the product lifecycle
  • Hands-on experience with the Open Mission Systems (OMS) and Universal Command and Control Interface (UCI) standards
  • Advanced expertise in requirements management and system modeling tools, such as No Magic Cameo
  • Proven experience in software architecture, including functional decomposition, interface definition, and software design
  • Experience in creating detailed software interface control documents and algorithm description documents

Other

  • Requires bachelor's degree in a related field (or equivalent work experience in lieu of degree or master's +6 yrs experience)
  • Typically, 8+ years of related experience
  • Strong problem-solving skills
  • Ability to mentor and guide other engineers
  • An active Secret U.S. Security Clearance is required