Software Engineer III

Sierra Nevada Corporation is a global leader in aerospace and national security, providing technologies and solutions for critical security needs. The Software Engineer III will lead the design, development, and optimization of complex software systems and build shared developer platforms, libraries, tooling, and documentation for SNC web applications.

Responsibilities:

• Design, build, and maintain the enterprise UI component library for use across SNC web applications
• Operate the private package registry (npm, PyPI, Maven, etc.) that secures and distributes internal artifacts
• Create and maintain application templates and scaffolding tools that enable teams to bootstrap production-ready services in minutes
• Build and continuously improve the Internal Developer Portal (IDP) — a single pane of glass for service catalog, docs, templates, and platform tooling
• Develop and maintain shared SDKs and platform libraries that standardize how teams interact withSNC infrastructure
• Write and maintain developer documentation, guides, and enablement content
• Collect developer feedback and measure developer productivity metrics (DORA, SPACE) to drive improvements
• Partner with Platform Engineering and AI teams to surface platform capabilities through the IDP

Requirements:

• Bachelor's degree in Computer Science, Software Engineering, or related field
• 6+ years of experience in experience in software development
• Higher level relevant degree may substitute for experience
• Advanced proficiency in programming languages such as C++, Java, or Python
• Practical knowledge of engineering principles and practices
• Experience working in multi-disciplinary teams
• Proficiency in TypeScript/JavaScript (with React preferred) and at least one backend language (Python, Go, Java)
• Ability to work on a computer for extended periods
• Hand/finger dexterity for coding and testing
• Ability to work in a hybrid environment with occasional travel
• To conform to U.S. Government international trade regulations, applicant must be a U.S. Citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State or U.S. Department of Commerce
• Experience building component libraries, design systems, or internal developer tooling
• Familiarity with developer portal frameworks (Backstage, Port, Cortex, or equivalent)
• Experience with package registry management (Nexus, Artifactory, GitHub Packages, or equivalent)