Overview:
System One is seeking an entry-level Nuclear Methods Software Engineer to support development on the ARMI framework—an advanced Python codebase used for nuclear reactor design and analysis across multiple next-generation reactor programs. This role involves daily Python development, code reviews, software testing, documentation, and contributions to mission-critical nuclear analysis tools.
• Design and develop Python software for the ARMI framework and related tools
• Participate in code reviews (reviewing and being reviewed)
• Write and audit tests within large Python codebases
• Develop and maintain documentation for nuclear methods software
• Support CI/CD activities for reactor design and analysis software
• Apply and promote software engineering best practices
• Collaborate with a diverse team of engineers and contribute to continuous improvement
• B.S. in Nuclear Engineering or B.S. in a STEM field with 3+ years’ experience in nuclear methods
• Proficiency in Python programming
• Strong communication skills
• High integrity, openness, respect, and a team-oriented mindset
• Interest in software testing, quality, and documentation
• Experience working in a nuclear quality environment (NQA-1 or ISO 9001)
• Desire to build a career at the intersection of nuclear engineering and software engineering
• Experience with unit testing in Python
• Experience writing/maintaining software documentation
• Familiarity with software quality best practices
• Experience with CI/CD concepts and tools
• Understanding of fast reactors or advanced reactor systems
• Experience with digital twin modeling or real-time data pipelines
• Graduate degree in Nuclear Engineering
• 3+ years professional programming experience
• Sitting/standing for extended periods; bending/stooping; fine motor control
• Ability to safely lift up to 25 lbs
• Prolonged repetitive work
• Visual and auditory concentration required
• Standard office/computer work environment (>8 hrs/day)
• Light travel: 0–5%
System One, and its subsidiaries including Joulé, ALTA IT Services, TeamPeople, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.
System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.
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