Senior/Principal R&D Computer Science - Full-Stack Java/C# Developer

About the role

The Component, Science, Engineering, and Production (CSEP) Information Systems and Operational Technology Solutions department (Org 7577) is seeking an experienced full‑stack Java developer to join our collaborative team supporting IT solutions across Sandia's discrete manufacturing and lot‑based production center. This role is ideal for a versatile, self‑motivated developer who thrives on solving diverse, high‑impact technical challenges. The successful candidate will design, implement, integrate, upgrade, optimize, and extend both custom‑built and commercial off‑the‑shelf (COTS) systems that enable critical manufacturing operations, including tester applications, waveform analysis tools, and manufacturing execution solutions. The position offers the opportunity to work across the full software stack, contribute to modernization initiatives, and deliver robust, reliable capabilities that directly support national security missions.

Responsibilities

• Design, develop, deploy, and maintain full‑stack software solutions, primarily using Java, but also C#/.NET and Python to support mission critical manufacturing operations
• Contribute to the design, implementation, and sustainment of tester and waveform analysis applications and associated analytical tools
• Demonstrated cyber security awareness by writing secure code
• Develop and evaluate integration approaches connecting Oracle ERP, Solumina MES, and both Smart Manufacturing COTS and custom applications—ensuring reliable, secure, and scalable system interoperability
• Advance digital engineering and digital thread initiatives by applying model‑based practices that strengthen traceability and manufacturing quality
• Research, explore, and apply AI‑enabled methods to enhance productivity, increase workflow efficiency, and support the department's modernization strategies
• Collaborate closely with cybersecurity professionals to deliver secure and compliant solutions using graded, risk‑informed decision making
• Build and sustain effective relationships with manufacturing/engineering partners, CIO collaborators, and stakeholders across Sandia—ensuring strong communication, alignment, and customer support

Requirements

• 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 security clearance.

Qualifications

• 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.

Skills

• Demonstrated intermediate‑to‑expert proficiency in Java (Java 21+), evidenced by delivery of production‑quality code (design, implementation, testing, debugging)
• Proficiency with SQL, including schema design, indexing strategies, and query performance tuning
• Demonstrated ability and interest to integrate AI into all aspects of their work for the purposes of accelerating technical growth and proficiency
• Proficiency with Python 3.x and/or C#/.NET
• Networking fundamentals and troubleshooting experience
• Working knowledge of DevOps practices and tooling (e.g., Git, CI/CD pipeline development and management)
• Active DOE Q clearance (desired)

Benefits

• 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

Pay

Salary Range $117,500 - $235,700

Schedule

On‑site work is preferred, but hybrid/remote may be considered with occasional travel to a Sandia location, as needed, to support project deliverables.