Head of Marketing & Communications

Los Angeles, CA (On-site)

$150K/yr – $220K/yrSenior Level10+ years expFull time

Posted 1 day ago

Job Summary

Own and execute Antares' global communications and marketing strategy, leading events, executive positioning, internal and external communications, and team leadership to drive growth across defense, energy, and government markets.

  • Define integrated strategy aligned to business verticals and company goals
  • Lead crisis management and executive communications to protect and advance reputation

Job Description

Responsibilities

  • Translate the company’s business objectives into a clear communications and marketing strategy and execution plan, with priorities and goals aligned to the needs of Antares’ business verticals and the company as a whole.
  • Own the events and conference program as a strategic business development channel, including the annual calendar, venue selection, executive speaking, physical presence and demonstrations, hosted meetings and side events, and the follow-through needed to convert each appearance into pipeline, partnerships, and policy progress.
  • Build the marketing function around the buyer, including positioning and materials for government, commercial, and international customers, web and digital presence, brand system, and programs that directly support customer engagement and business development.
  • Run stakeholder communications across the full ecosystem, including military services and program offices, DOE and the national laboratories, NRC and state regulators, Congress, host communities and local stakeholders where Antares is deploying, suppliers, investors, customers, and commercial partners, in close coordination with corporate strategy and policy.
  • Build and run internal communications as a core operating discipline, including all-hands, leadership updates, milestone communications, and site-to-site connective tissue that keeps the entire Antares team aligned on company priorities and public-facing messaging.
  • Give the CEO and leadership team a clear, consistent voice inside and outside the company, and own their preparation for testimony, media interviews, television appearances, podcasts, keynotes, conference panels, public events, and other high-profile engagements.
  • Own crisis and issues management, including developing response playbooks, preparing leadership, and conducting regular exercises to build organizational readiness for high-stakes situations.
  • Lead and develop the communications and marketing team, including the Communications Manager and Creative Lead, and oversee external partners and the resources required to execute the function effectively.
  • Provide timely, clear reporting to leadership on communications and marketing priorities, progress, deliverables, and outcomes.
  • Represent Antares at customer meetings, site visits, conferences, and other external engagements.

Requirements

  • Bachelor’s degree required.
  • At least 10 years of experience in communications and marketing, including significant experience leading communications and marketing teams and functions.
  • Experience helping a high-growth startup scale through multiple stages of growth, including evolving the communications and marketing function as the company raises capital, enters new markets, and reaches major commercial and organizational milestones.
  • Demonstrated ability to build and execute integrated, multi-stakeholder communications strategies tied to measurable business objectives, with results to show for it.
  • Experience building an internal communications program at a company growing quickly across multiple sites.
  • Experience in defense, energy, aerospace, or another regulated, hardware-driven industry serving government, commercial, and international customers.
  • Experience leading crisis and issues management at the executive level.
  • Experience building and managing a team and budget.
  • Exceptional writing and editing, with strong editorial judgment and the ability to identify and develop compelling content, quickly become fluent in complex technical subject matter, and translate technical and regulatory topics into clear, compelling communications for non-expert audiences.

Preferred

  • Experience taking a company through a defining public moment, such as a first-of-a-kind demonstration, major government award, late-stage financing round, or IPO.
  • Ability to foster existing relationships and build new ones with national defense, energy, business, and technology press, as well as Congressional, Executive Branch, and agency stakeholders.
  • Investor relations or public-company communications experience.
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Antares

Energy abundance unlocks progress. It powers missions, grows economies, strengthens national security, and expands what’s possible on Earth and beyond. But in the places where power is most critical, it’s often the hardest to deliver. That’s the problem we’re solving. At Antares, we’re building compact nuclear microreactors to deliver reliable, mobile energy where it’s needed most: remote military bases, austere industrial sites, and, one day, deep space and underwater missions. The U.S. nuclear industry hasn’t seen true momentum in decades. We’re moving it forward with urgency, humility, and a commitment to building what’s needed now. Our team includes engineers and operators from SpaceX, Relativity Space, Ursa Major, the White House, MIT, Rigetti Computing, and the U.S. Air Force. Backed by over $130M from top-tier investors, we’re focused on shipping hardware not hypotheticals.

Founded in 2023
Torrance, California, USA
121 employees (2 in marketing)

Salaries

Posted range

$150K/yr – $220K/yr

Taken straight from the job posting.

See all Antares salaries

Marketing Team

Median Tenure
5.3 years
Marketing Roles Posted (Last 30 Days)
1

Funding

Total Funding
$126M
Last Raise
$71M
Series B, 8 months ago

Funding History

  • Dec 2025
    Series B • $71M
  • Dec 2025
    Debt Financing • $25M
  • Oct 2024
    Series A • $30M

Traffic Signals

Monthly Visitors
24.1K
Traffic Source Mix
Search
64.8%
Direct
23.9%
Referral
7.9%
Social
0.6%

Headcount Trend

Current headcount: ~121

Recent News

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Head of Marketing & Communications

Antares · Los Angeles, CA · On-site