Senior Software Engineer

Oklo·Santa Clara, CA or Remote·Posted today

Nuclear industryUS only

About this role

Senior Software Engineer at Oklo, a fast-moving advanced fission startup. You'll lead the design of software systems for reactor simulation, data management, and physics analysis—working directly with nuclear engineers on next-generation reactor technology. No nuclear background required, but strong software fundamentals and genuine interest in nuclear energy are essential.

Responsibilities

—Lead the design of systems for storing and retrieving reactor data and physics results at scale
—Architect and own CI/CD pipelines for multiphysics analyses, ensuring reliability, observability, and reproducibility of complex simulations
—Develop tools and platforms that enable reactor engineers to visualize, compare, and evaluate reactor designs
—Develop physics kernels to solve unanswered problems or improve performance of existing models
—Develop reactor optimization schemes and statistical experiments to inform design changes
—Mentor other engineers, set technical direction, and contribute to building a strong engineering culture

Qualifications

—Bachelor's degree in computer science, computer engineering, or equivalent work experience
—8+ years of professional software engineering experience
—Fluency in Python
—Strong proficiency with Git
—Experience designing, implementing, and maintaining CI/CD pipelines
—Demonstrated ability to own projects end-to-end: requirements gathering, architecture, implementation, testing, deployment, and iteration
—Strong communication skills and experience collaborating with cross-functional partners (scientists, analysts, domain experts)
—Curiosity and passion for nuclear power and sustainable energy generation

Desired

—Proficiency in Rust
—Proficiency in Typescript/Javascript (especially Svelte)
—Experience growing and mentoring small software teams
—Experience designing and operating large data collection or analysis pipelines
—Experience with optimization, statistics, and design of experiments
—Knowledge of GitLab CI/CD
—Prior work developing and implementing software quality assurance programs, especially in quality- or safety-focused industries
—Experience working in regulated environments (energy, aerospace, medical, automotive)