Application Guide
How to Apply for Junior Software Engineer
at Oklo
🏢 About Oklo
Oklo is pioneering next-generation fast fission technology to recycle nuclear waste into clean, reliable energy, making it uniquely positioned at the intersection of advanced nuclear innovation and sustainability. Working here means contributing directly to solving climate change through cutting-edge nuclear technology, not just software development.
About This Role
This Junior Software Engineer role focuses on building tools and pipelines that enable reactor engineers to design, analyze, and optimize nuclear reactors through software. You'll directly impact Oklo's mission by creating systems that transform reactor data, integrate physics simulations, and improve design efficiency—bridging software engineering with nuclear physics.
💡 A Day in the Life
A typical day might involve collaborating with reactor engineers to understand their data visualization needs, writing Python scripts to transform simulation outputs, and configuring CI/CD pipelines to automate multiphysics analyses. You could also spend time optimizing physics kernels for performance or brainstorming software solutions to improve reactor design workflows.
🚀 Application Tools
🎯 Who Oklo Is Looking For
- A recent graduate or early-career engineer with hands-on Python projects (especially in data transformation or visualization) and Git proficiency, even from internships or academic work.
- Someone genuinely curious about nuclear energy, fuel cycles, and sustainability, who can articulate why they're drawn to Oklo's specific mission.
- A problem-solver eager to learn multiphysics, CI/CD pipelines, or simulation tools, with a knack for identifying process inefficiencies software can address.
- A collaborative builder who enjoys creating tools for engineers (like visualization or analysis pipelines) and optimizing complex systems.
📝 Tips for Applying to Oklo
Highlight any Python projects where you transformed, visualized, or optimized data—especially if related to engineering, physics, or simulations—even from coursework or personal projects.
Explicitly mention your interest in nuclear energy, recycling nuclear waste, or sustainable power in your resume or cover letter to show mission alignment.
If you have CI/CD experience, describe a pipeline you built or contributed to; if not, express eagerness to learn it for multiphysics analyses.
Include links to Git repositories (GitHub/GitLab) with clean, documented code samples, even from internships or school projects.
Tailor your resume to use keywords from the job description: 'reactor data,' 'multiphysics analyses,' 'visualization tools,' 'process inefficiencies,' and 'optimization schemes.'
✉️ What to Emphasize in Your Cover Letter
["Explain why you're passionate about Oklo's mission to recycle nuclear waste and provide clean energy—connect it to personal or academic interests.", 'Describe a specific project where you used Python and Git to build, optimize, or visualize something (e.g., a data tool, simulation, or pipeline).', "Highlight how you've identified and improved inefficiencies in a process using software, even in a non-professional setting.", 'Express curiosity about learning nuclear physics, reactor design, or CI/CD pipelines to support engineering teams.']
Generate Cover Letter →🔍 Research Before Applying
To stand out, make sure you've researched:
- → Oklo's Aurora reactor design and how it uses fast fission to recycle nuclear waste.
- → The company's recent regulatory milestones or partnerships (e.g., with the DOE or nuclear labs).
- → Challenges in nuclear energy, like fuel cycle closure or advanced reactor design, to discuss knowledgeably.
- → Multiphysics analysis in nuclear engineering (e.g., coupling thermal, fluid, and neutronics simulations).
💬 Prepare for These Interview Topics
Based on this role, you may be asked about:
⚠️ Common Mistakes to Avoid
- Submitting a generic software engineer application without mentioning nuclear energy, sustainability, or Oklo's mission.
- Overstating experience with CI/CD or multiphysics—instead, show eagerness to learn and relate it to past projects.
- Focusing only on coding skills without examples of building tools for engineers or optimizing processes.
📅 Application Timeline
This position is open until filled. However, we recommend applying as soon as possible as roles at mission-driven organizations tend to fill quickly.
Typical hiring timeline:
Application Review
1-2 weeks
Initial Screening
Phone call or written assessment
Interviews
1-2 rounds, usually virtual
Offer
Congratulations!