Manager, Social Media & Strategic Communications

District of Columbia, USA (On-site)

Salary Not AvailableManager4+ years expFull time

Posted 2 months ago

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Job Summary

Own Castelion’s social and strategic communications program, translating defense and technology narratives into credible public content while guiding leadership visibility across platforms.

  • Editorial, channel, and content strategy: Own the social plan across X, LinkedIn, YouTube, and priority channels; shape executive voice and key narratives.
  • Campaigns and cross-functional storytelling: Build social-first campaigns around major announcements, product milestones, events, and recruiting priorities with assets from design, video, and recruiting teams.
  • Monitoring, briefs, and performance: Produce a daily executive media brief, track engagement and sentiment, and translate insights into improved content strategy and rapid-response decisions.

Job Description

Responsibilities

  • Develop and execute Castelion's social media and owned-channel strategy across social channels, including X, LinkedIn, YouTube, and other priority platforms.
  • Own the editorial calendar for company channels, including announcements, milestones, recruiting content, executive perspective, industry commentary, event coverage, and evergreen brand storytelling.
  • Draft, edit, schedule, and publish social content that is technically accurate, visually compelling, and appropriate for defense, policy, customer, investor, and talent audiences.
  • Build social-first campaigns around major company announcements, product milestones, test activity, launch activity, executive appearances, industry events, and recruiting priorities.
  • Partner with creative, design, video, engineering, and recruiting teams to develop visual assets, short-form video concepts, carousels, explainers, and behind-the-scenes content.
  • Support executive social presence, including drafting posts, shaping point of view, identifying timely moments, and translating leadership perspective into credible public commentary.
  • Monitor defense, aerospace, technology, policy, competitor, and geopolitical conversations to identify relevant moments for Castelion to engage or avoid.
  • Produce a concise daily executive media and social brief summarizing relevant coverage, industry developments, competitor activity, social conversation, geopolitical events, and emerging narratives.
  • Track channel performance, audience growth, engagement, sentiment, and campaign results, then use those insights to improve content strategy.
  • Manage community engagement, comment monitoring, inbound message routing, and escalation workflows.
  • Support media strategy for announcements and high-visibility moments, including drafting press materials, talking points, briefing notes, media pitches, and social amplification plans.
  • Help identify high-quality podcasts, interviews, conferences, speaking opportunities, and other visibility moments for company leadership.
  • Support rapid-response communications and issue management with discretion, accuracy, and sound judgment.
  • Maintain consistency of Castelion's external voice, messaging, terminology, and narrative across social, press, web, recruiting, and executive channels.
  • Coordinate with legal, security, engineering, and business stakeholders to ensure communications meet OPSEC, export-control, customer-sensitivity, and technical-accuracy standards.
Castelion Corporation logo

Castelion Corporation

Forging the future of hypersonic strike weapons through Modern Defense Production

Founded in 2022
Torrance, California, USA
156 employees (5 in marketing)

Traffic Signals

Monthly Visitors
32.1K
Traffic Source Mix
Search
37.6%
Direct
46%
Referral
4.3%
Social
10.6%
Paid
1.3%

Headcount Trend

Current headcount: ~156

Marketing Team

Marketing Team Size
3 (2% of company)

Funding

Total Funding
$469.6M
Last Raise
$350M
Series B, 3 months ago

Funding History

  • Dec 2025
    Series B • $350M
  • Jan 2025
    Debt Financing • $30M
  • Jan 2025
    Series A • $70M

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