About the role#
Radiant is looking for a Marketing & Communications Intern to join our team in El Segundo for the summer of 2027. You will help share our work on portable nuclear microreactors with a broader audience. This is a full-time, paid, on-site position.
What you'll do#
- Draft social media content for our brand account to keep a consistent presence.
- Create press materials like releases, fact sheets, executive bios, and FAQ documents.
- Develop content packages for major announcements, including visual assets, investor posts, and media talking points.
- Ensure brand consistency across our website, social media, events, and investor materials.
- Manage external creative vendors to produce high-quality design, video, and rendering assets.
What you'll need#
- Current enrollment in a BS or MS program for Marketing, Communications, Branding, or a related field.
- Prior experience in content marketing or corporate communications.
- Strong writing skills and the ability to adjust your voice for different audiences.
- A good eye for visual design.
- Familiarity with social media best practices.
- The ability to manage multiple projects and meet deadlines.
Location & details#
- This role is based on-site at our headquarters in El Segundo, California.
- This position requires access to technology subject to U.S. export controls. Any offer is contingent on your ability to comply with these regulations.
About Radiant
Radiant produces portable nuclear microreactors. The company is based in El Segundo, California and employs between 51 and 200 people. It was founded in 2020. The firm is currently developing a 1 MW failsafe microreactor known as Kaleidos.
How to get in at Radiant
Applying early to Radiant gives you a clear advantage because recruiters review applications as they arrive. Intern Insider sends an instant alert the moment a role is published, so you can apply among the first before the pile grows. You should aim to reach out to the recruiters behind these roles directly to ask about the position or a referral, as this approach often improves response rates. Intern Insider surfaces these specific contacts for you, helping you move past the standard queue.



