Senior Brand Content Manager

Core responsibilities:

• Draft social media content for executives and the Radiant brand account, maintaining consistent presence across channels
• Create press materials including press releases, fact sheets, executive bios, FAQ documents, and backgrounders
• Develop milestone content packages for major announcements including visual assets, draft posts for investors, and media talking points
• Maintain brand consistency across all touchpoints—website, social, presentations, events, investor materials
• Write messaging frameworks for 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 calendar, coordinating timing across announcements, events, and evergreen content
• Support executive thought leadership, ghostwriting op-eds, blog posts, and long-form content

This role creates positive change by telling Radiant's story across every channel, reframing the conversation around nuclear microreactors as small, safe, portable, and fundamentally different from legacy plants, helping advance clean energy technology that can replace diesel generators and provide critical power for hospitals, data centers, remote sites, and military bases.

Required qualifications:

• 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 sensibility—you can brief designers and provide useful feedback on creative
• Familiarity with social media best practices across major platforms
• Portfolio demonstrating range—from punchy social posts to polished long-form content
• Ability to work quickly and manage multiple projects with competing deadlines

Total compensation package includes base salary, substantial equity grants, and comprehensive health benefits:

• Annual salary range: $150,000—$190,000 USD
• 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
• 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
• 8-weeks of paid parental leave for all parents
• Daily catered lunch, free snacks and drinks
• Flexible PTO policy, remote workday allocation
• Company and team-bonding events
• Beautiful El Segundo headquarters close to the Pacific Ocean

Radiant is building the world's first mass-produced, portable nuclear microreactors. Their 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 refueling, providing clean energy to replace diesel generators for hospitals, data centers, remote sites, and military bases.