Senior Brand Content Manager

Radiant is an El Segundo CA-based startup building the worlds first mass-produced portable nuclear microreactors. The companys first reactor Kaleidos is a 1-megawatt failsafe microreactor that can be transported anywhere power is needed and run for up to five years without the need to refuel. Portable nuclear power with rapid deploy capability can replace similar-sized diesel generators and provide critical asset support for hospitals data centers remote sites and military bases. Radiants unique practical approach to nuclear development utilizes modern software engineering to rapidly achieve safe factory-built microreactors that leverage existing well-qualified materials. Founded in 2020 Radiant is on track to test its first reactor next year at the Idaho National Laboratory with initial customer deliveries beginning in 2028.

Were looking for a Senior Brand Content Manager to tell Radiants story across every channel. Youll draft social media posts for the company and executives create presentation materials manage development of visual assets and build the content packages that accompany every milestone. This is a high-output role: youll be writing and managing content for four distinct executive voices while maintaining consistency across the Radiant brand.

The ideal candidate combines strong writing skills with visual sensibility and the ability to translate complex technical concepts into compelling narratives. You understand that nuclear can come with baggage and you know how to reframe the conversation around what microreactors actually are: small safe portable and fundamentally different from the legacy plants people fear.

What Youll Do

• Draft social media contentfor executives and the Radiant brand account maintaining consistent presence across channels
• Create press materialsincluding press releases fact sheets executive bios FAQ documents and backgrounders
• Develop milestone content packagesfor major announcements including visual assets draft posts for investors and media talking points
• Maintain brand consistencyacross all touchpointswebsite social presentations events investor materials
• Write messaging frameworksfor different audiences (defense investors policy general public) and ensure all content aligns
• Manage external creative vendors(design renderings video) to produce high-quality visual assets
• Maintain the content calendarcoordinating timing across announcements events and evergreen content
• Support executive thought leadershipghostwriting op-eds blog posts and long-form content

What You Bring

• 6 years of experience in content marketing brand communications or corporate communications
• Exceptional writing skills with the ability to adapt voice for different executives and audiences
• Experience translating complex technical concepts into accessible compelling narratives
• Strong visual sensibilityyou can brief designers and provide useful feedback on creative
• Familiarity with social media best practices across major platforms
• Portfolio demonstrating rangefrom punchy social posts to polished long-form content
• Ability to work quickly and manage multiple projects with competing deadlines

Bonus Points

• Experience in energy aerospace defense tech or other hard tech sectors
• Background in journalism or editorial work
• Experience ghostwriting for executives
• Design skills (Figma Canva) and basic photo and video editing capability

Key Deliverables

• Consistent social media presence across brand and executive accounts
• Content packages for every major milestone
• Updated messaging frameworks for each target audience

Total Compensation and Benefits
Radiant compensates people for impact and invests in those who continue to raise the bar. Radiants new hire compensation package includes base salary substantial equity grants and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance experience education and qualifications and are designed to support continued growth as scope responsibility and impact expand at Radiant.

The best of todays advanced reactor builders dont wait for job postings. They join the winning team. If thats you contact us directly for immediate opportunities: .

Benefits and Perks for Eligible Employees:

• Stock: Substantial incentive stock plan for all full-time employees.
• Medical: 100% premium coverage for base Silver level plan for employee 50% premium coverage for dependents. Platinum plans available.
• One Medical: Sponsored memberships for eligible employees and their dependents.
• Vision: 100% premium coverage for top tier plan 50% for dependents.
• Dental: 100% premium coverage for top tier plan (including orthodontia) 50% for dependents.
• Voluntary life accident hospital critical illness commuter and FSA/HSA are offered as employee contributed benefits.
• 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees.
• Daily catered lunch. Free snacks and drinks.
• Flexible PTO policy. Remote workday allocation.
• Company and team-bonding events happy hours and in-person camaraderie.
• Beautiful El Segundo headquarters close to the Pacific Ocean.
• Burgeoning satellite offices in Oak Ridge TN and Washington D.C. near Capitol Hill.

We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race color religion sex sexual orientation gender identity or expression pregnancy age national origin disability status genetic information protected veteran status or any other characteristic protected by law.

Unfortunately we are unable to provide visa sponsorship at this time.

This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicants capacity to serve in compliance with U.S. export controls.