Summer 2026 Internship - Software Engineering at Radiant

El Segundo, California, United States

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Not SpecifiedCompensation

InternshipExperience Level

InternshipJob Type

UnknownVisa

Nuclear EnergyIndustries

Requirements

Currently pursuing a degree in computer science, physics, or a related technical discipline
Familiarity with Python, C++, C#, or similar object-oriented programming languages
Basic knowledge of software development practices and version control tools such as Git

Responsibilities

Assist in creating tooling to support a variety of simulation software packages
Contribute to internal software products that support simulation and analysis of simulation results

Skills

Key technologies and capabilities for this role

PythonC++C#Git

Questions & Answers

Common questions about this position

Is this internship remote or onsite?

This internship requires working onsite at Radiant's El Segundo HQ.

What are the required qualifications for this software engineering internship?

Candidates must be currently pursuing a degree in computer science, physics, or a related technical discipline, have familiarity with Python, C++, C#, or similar object-oriented programming languages, and basic knowledge of software development practices and version control tools such as Git.

What benefits are offered for this internship?

Radiant's compensation package includes base salary, substantial equity grants, and comprehensive benefits such as a substantial incentive stock plan, 100% coverage up to base silver level medical plan for the employee plus 50% for dependents, and sponsored One Medical memberships.

What is the compensation for this internship?

Compensation includes base salary and substantial equity grants, determined through a holistic evaluation of interview performance, experience, education, and qualifications. A specific salary range is not provided.

What makes a strong candidate for this internship?

Strong candidates are self-motivated, able to collaborate in a team, have interest in simulation tools or software testing, familiarity with distributed software development and design patterns, and a passion for physics, hardware, or electrical engineering.

Radiant

Develops compact nuclear microreactors for energy

About Radiant

Radiant Nuclear develops compact nuclear microreactors aimed at providing reliable and sustainable energy solutions, especially for remote locations and military applications. Their main product, the Kaleidos microreactor, utilizes a CO2 cycle for energy production, allowing for a smaller and more portable reactor that can be deployed in challenging environments. Radiant differentiates itself from competitors by leveraging expertise from veterans of SpaceX and other high-tech industries, focusing on advanced technology in the nuclear energy market. The company's goal is to transform the nuclear energy sector by commercializing its microreactor technology and securing government contracts, such as those with the Department of Defense, while also seeking partnerships with private sector companies to enhance growth.

El Segundo, CaliforniaHeadquarters

2019Year Founded

$151.5MTotal Funding

SERIES_CCompany Stage

Government & Public Sector, EnergyIndustries

51-200Employees

Benefits

Health Insurance

Dental Insurance

Vision Insurance

Stock Options

Unlimited Paid Time Off

One Medical

Risks

Public opposition to nuclear energy may hinder Radiant's market acceptance.

Regulatory delays from the Nuclear Regulatory Commission could impact Radiant's timelines.

Competition from cheaper solar and wind technologies may affect Radiant's market share.

Differentiation

Radiant's Kaleidos microreactor offers zero-emissions power for remote and critical applications.

The company leverages expertise from SpaceX veterans for advanced nuclear technology development.

Radiant's CO2 cycle technology enables compact, efficient, and portable nuclear power solutions.

Upsides

Radiant raised $100M in Series C funding to develop commercial microreactors.

The U.S. Department of Defense awarded Radiant $3.8M for turbomachinery development.

Growing demand for sustainable energy in data centers boosts Radiant's market potential.

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