Senior Engineer, Scientific Software, Modeling and Simulation

Job not on LinkedIn

🔥 12 hours ago

🏄 California – Remote

🏄 California – Remote

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

🦅 H1B Visa Sponsor

This company has sponsored H1B visas in the past.

👻 Ghost score 12%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Kairos Power

WebsiteLinkedInAll Job Openings

201 - 500 employees

⚡ Energy

🔬 Science

Energy • Science • Engineering

Kairos Power is a mission-driven engineering company focused on delivering clean, affordable, and safe energy through advanced reactor technology. The company specializes in the integrated design, licensing, and demonstration of a fluoride salt-cooled high temperature reactor, known as KP-FHR, which aims to be cost-competitive with natural gas and offers a path to a clean energy system with a near zero carbon footprint. With a focus on innovative engineering and a mission to improve quality of life while protecting the environment, Kairos Power's advanced reactor technology is designed for high availability, performance, and safety, featuring accident-resistant fuel and low-pressure coolant. The technology supports grid resiliency and security by providing dispatchable power, reducing maintenance and lifecycle costs, and enhancing the integration with renewable energy sources.

📋 Description

• Design, implement, test, and maintain scientific and engineering software in Python and C++, including computational modeling methods and numerical algorithms • Own software architecture for internally developed engineering tools • Profile and optimize performance based on measurable requirements • Collaborate with nuclear and non-software engineers to define software projects • Own CI/CD with automated testing, quality gates, and controlled release • Build reproducible packaging pipelines for Python packages, Conda environments, and C++ binaries/libraries • Own artifact publication and versioning • Diagnose compilation, dependency, environment, and runtime problems • Establish and maintain Docker and Apptainer container build and runtime patterns for development and HPC • Uphold software quality assurance requirements and automate compliance in pipelines • Define reproducible artifacts, records, and gates for controlled software delivery • Support software quality audits with tooling-generated evidence • Develop and support HPC workflows using Slurm, Open OnDemand, MPI, and GPU computing • Improve engineers’ and scientists’ modeling and simulation workflows • Build self-service engineering workflows and documentation • Establish design, documentation, and maintainability standards • Conduct technical design and code reviews • Mentor engineers and transfer knowledge through documentation and shared ownership • Evaluate build-versus-buy decisions and select standard, supported tools • Participate in the engineering help queue and communicate technical resolutions • Travel as needed for workshops and project assistance

🎯 Requirements

• Bachelor’s degree in computer science, engineering, physics, mathematics, computational science, or a related technical field, or equivalent combination of education and practical experience • 5+ years of relevant software engineering experience, including scientific, engineering, computational, or technically complex software • Strong experience developing scientific or engineering software in both Python and C++ • Experience implementing computational modeling methods, numerical methods, or comparable quantitative algorithms • Demonstrated software architecture experience, including problem decomposition, interface definition, and reasoning about maintainability, performance, and long-term cost • Experience with automated unit and integration testing, such as PyTest or GoogleTest • Proficiency with Git, Linux, Bash, and SSH • Experience mentoring engineers and conducting design and code reviews • Track record of building maintainable software supported by clear documentation and knowledge transfer • Ability to work with nuclear engineers, computational scientists, and other non-software specialists • Ability to occasionally work weekends, flexible schedules, and extended hours • Ability to meet Department of Energy Part 810 export-control access requirements for the facility • Master’s or Ph.D. in a related discipline is desirable • Experience with Docker, Apptainer, Conda, CMake, GitHub Actions, performance profiling, HPC, Slurm, Open OnDemand, MPI, GPU computing, Doxygen/Sphinx, relational databases, backend APIs, AWS/Google Cloud, and infrastructure as code is desirable

🏖️ Benefits

• Competitive compensation packages • Medical, dental and vision benefits for employees and their dependents • Paid Vacation • 401(k) • Pre-tax health insurance, dependent care, and commuter benefits (FSA) • Remote work option