TITLE: Senior Software Developer LOCATION: Bellevue, WA TerraPower is a nuclear technology company based in Bellevue, Washington. At its core, the company is working to raise living standards globally through a more affordable, secure and environmentally friendly form of nuclear energy along with innovations in medical isotopes to improve human health. In 2006, TerraPower originated with Bill Gates and a group of like-minded visionaries who evaluated the fundamental challenges to raising living standards around the world. They recognized energy access was crucial to the health and economic well-being of communities and decided that the private sector needed to take action and create energy sources that would advance global energy deployment. TerraPower's mission is to be a world leader in new nuclear technologies, while developing innovators and future leaders in the nuclear field. As a result, the company's activities in the fields of nuclear energy and related sciences are yielding significant innovations in the safety and economics of nuclear power, hybrid energy and medical applications - all for significant human health benefits. TerraPower is seeking to hire highly motivated and forward-thinking professionals who are interested in focusing on advanced nuclear reactor research and development and influencing change within the nuclear power landscape and bringing forward the critical production of medical isotopes. Senior Software Developer TerraPower is seeking to hire a highly skilled full stack developer to help build and maintain of our primary data management application, called Atom. This tool is a key part of our plan to improve the world's ability to deliver data-heavy nuclear power construction projects on time and budget. It contains a nuclear reactor project-specific data model linking the plant safety functions, requirements, scientific analyses, documentation, tests, and more. It acts as a single source of truth across the project to help coordinate design and construction efforts. It facilitates workflows that satisfy project procedures. This role will work closely with engineering management, QA, and the internal user base to continue to build and refine the tool's capabilities, improve the quality pedigree, monitor and improve performance as needed, and to fix bugs as they are identified. The tool is a Python/Django/DRF backend running on Linux servers with a JavaScript/Vue3/Quasar frontend SPA user interface. The developer team is relatively small: only 5 people. We're looking for someone who takes pride in the craft of software development, is willing to learn and understand our somewhat obscure use case and needs, and is highly focused and self-motivated. TerraPower is an equal opportunity employer. Responsibilities: Design, implement, document, and test software based on formally defined requirements and bug reports from the in-house user base, Design and implement refactorizations and maintenance to maximize near- and long-term productivity of users and developers, Identify and prioritize tasks without them being explicitly assigned to you, Support verification and validation efforts to prove that the codes meet specifications and are correct, Systematically identify performance or productivity bottlenecks; design and implement solutions to eliminate them, Perform administrative data management operations on the backend based on user and management needs, Understand and translate new feature requests into formal software requirements, Train and support reactor designers to use the software system, Provide mentoring to other developers, Support software build and testing systems (like our Jenkins instance and related dashboards), Support server configuration and maintenance needs, Facilitate design reviews for ongoing developments to keep review/approval process as productive as possible, Review proposed cod