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Radiant

Portable nuclear microreactors replacing diesel generators

Media Relations Director

PR & CommunicationsConfirmed live in the last 24 hours
Full-timeEl Segundo, CA, USA

About the Job

Requirements

  • At least 8 years of experience in media relations, communications, or public relations.
  • Demonstrated success booking executives on broadcast and top-tier podcasts and securing feature coverage from top-tier publications.
  • Existing relationships with journalists, podcasters, or media gatekeepers, or a proven ability to build them.
  • Experience preparing spokespeople for high-stakes media appearances.
  • Understanding of the new media landscape, including podcasts, newsletters, and social platforms, and how influence flows through and across these channels.
  • Ability to work across time zones and accommodate media schedules.
  • Must be willing to work extended hours and weekends as necessary.
  • Must work 100% onsite at El Segundo headquarters.

Responsibilities

  • Drive media coverage for Radiant, targeting top-tier outlets, podcasts, shows, and newsletters covering defense, technology, business, government, and energy.
  • Build and maintain relationships with reporters at relevant publications.
  • Cultivate relationships with new media outlets, newsletters, and online publications that reach Radiant’s audiences.
  • Coordinate investor amplification during milestone announcements by pre-briefing investors with draft posts and embargo timing to maximize reach.
  • Support executive communications by developing talking points, preparing executives for interviews, and ensuring spokespeople are deployed to appropriate audiences.
  • Monitor the media landscape, competitors, and the industry.
  • Manage crisis communications when Radiant or the nuclear industry faces negative coverage.
  • Track and report media metrics, including coverage volume, sentiment, share of voice versus competitors, and amplification reach.

Desired Qualifications

  • Ideally have experience in technology, energy, aerospace, or defense.
  • Existing relationships with business, defense, energy, or technology podcasters and media creators.
  • Experience with nuclear energy communications and the unique sensitivities involved.
  • Prior work with defense technology companies.

About the Company

Radiant

Portable nuclear microreactors replacing diesel generators

Radiant designs and manufactures portable, factory-built nuclear microreactors for off-grid power. Its Kaleidos unit is a 1 MWe high-temperature gas-cooled reactor that uses TRISO fuel and a helium coolant, packaged in a container-sized module that can be transported by truck, ship, or air for rapid deployment to remote sites. The reactor runs for up to five years between refueling as part of a 20-year lifecycle and operates without water cooling, enabling flexible siting. Radiant differentiates itself through factory production of certified HTGR-based microreactors with an ambitious R-50 factory to enable mass production and fast deployment for energy resilience, military, data centers, and critical infrastructure. The company aims to provide reliable, emissions-free power that replaces diesel and supports resilient energy infrastructure at remote or critical locations.

Company size
501-1,000
Company stage
Series D
Total funding
$622M
Headquarters
El Segundo, CA
Founded
2019

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