Senior​/Principal Software Engineer - Special Programs, CA Onsite

Senior/Principal Software Engineer - Special Programs, CA Onsite

Join to apply for the Senior/Principal Software Engineer - Special Programs, CA Onsite role at Sandia National Laboratories
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Sandia National Laboratories is the nation’s premier science and engineering lab for national security and technology innovation, with teams of specialists focused on cutting-edge work in a broad array of areas. Some of the main reasons we love our jobs:

• Challenging work with amazing impact that contributes to security, peace, and freedom worldwide
• Extraordinary co‑workers
• Some of the best tools, equipment, and research facilities in the world
• Career advancement and enrichment opportunities
• Flexible work arrangements for many positions include 9/80 (work 80 hours every two weeks, with every other Friday off) and 4/10 (work 4 ten‑hour days each week) compressed workweeks, part‑time work, and telecommuting (a mix of onsite work and working from home)
• Generous vacation, strong medical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance

Are you passionate about solving complex problems and applying your expertise to develop innovative solutions? Join our dynamic team and help solve critical challenges to enhance our nation’s security!

• Lead and collaborate with technical design teams and subject matter experts to create innovative solutions that meet mission requirements and address end‑user needs.
• Utilize your skillset in software system architecture, software system implementation, technical documentation, reliability and performance assessment, and/or systematic technology insertion to enhance mission capabilities utilizing code bases ranging from 0.5 to 1.0+ million lines of code.
• Collaborate with Software Engineers, System Engineers, Information Technology staff, management, and customers to implement solutions that address requirements. Architect software systems, develop code, write unit tests, and create software tools to support the mission.
• Develop and execute test plans/procedures, create reports, and write software documentation.
• Perform system integration and unit testing.
• Apply system design principles to architect scalable, reliable, and secure solutions for critical missions.
• Incorporate software design methodologies to proactively address computer security considerations throughout the software development lifecycle.
• Develop and refine system CONOPS (Concept of Operations) to ensure technical solutions address operational needs.
• Provide 24/7/365 on‑call support for software discrepancy resolution.

$135,700 - $270,900

• A Bachelor's degree in a relevant discipline and five (5) years of directly relevant experience, or an equivalent combination of directly relevant education and engineering or scientific experience that demonstrates the knowledge, skills, and ability to perform independent research and development.
• Ability to obtain and maintain a DOE Q‑level and SCI‑level security clearance, which may require a polygraph test.

• Graduate degree in Computer Science or a highly related field where an independent research project was a graduation requirement (e.g., independent project, thesis, or dissertation).
• Demonstrated software development skills and familiarity with modern software development practices and tools (e.g., Agile).
• Strong verbal and written communication skills, ability to work effectively in multidisciplinary teams, and a passion to improve and expand technical skills.

• 10+ years experience in front‑end, back‑end, or full stack development for code bases with 0.5 to 1.0+ million lines of code.
• Expertise in front‑end or full‑stack development, proficiency in JavaScript, Type Script, Angular, jQuery, and HTML5/CSS.
• Expertise in back‑end web application development using frameworks and tools such as Spring MVC, Tomcat, Jetty and coding with languages such as Java, Python, C++, JavaScript.
• Experience with mapping libraries such as Leaflet, Google Maps, Esri ArcGIS.
• Hands‑on experience with Relational Databases…