Internal Communications Specialist - Contract

About Commonwealth Fusion Systems: 

Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy.

Combining decades of research, top talent, and new technologies, we’re designing and building commercially viable fusion power plants. And we're working with policymakers, suppliers, and many others to build the energy industry of the future.

We’re in the best position to make it happen. Since 2018, we’ve raised $4 billion of capital, making us the largest and leading fusion company in the world.

Now we’re looking for more thinkers, doers, builders, and makers to join us. People who’ll bring new perspectives, solve tough problems, and thrive as part of a team. 

If that’s you and this role fits, we want to hear from you.

Join the power movement as a Contract Internal Communications Specialist

We are seeking a collaborative, highly organized Internal Communications Specialist to join our team on a 6-month contract basis (mid-October through mid-April, 2026) to support day-to-day internal communications during a team member's leave. Reporting to the Head of Internal Communications, you will serve as the hands-on operational hub for internal messaging, slide deck creation, channel management, and company meeting execution. You will work closely with cross-functional teams to help draft clear messages, maintain internal publishing schedules, and keep employees informed and connected.

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What you'll do:

• Multi-Channel Writing: Draft, edit, and publish concise, brand-aligned messaging, including emails, Slack updates, Confluence, and digital signage
• Inbound Request Management: Act as the primary coordinator for internal communication submissions, working with cross-functional leads (Safety, Facilities, IT, People Operations) to advise on content, review and schedule their communications
• Speaker Support: Work with presenters to organize, reformat, and refine presentation slide decks to align with company branding and formatting standards
• All-Hands Meetings: Coordinate meeting logistics, presenter schedules, slide decks, and audience Q&A tools for company All-Hands meeting
• On-Site Event Support: Assist with live meeting setup in Devens—working with AV/IT teams, managing Q&A platform, and drafting post-meeting recap emails and summaries
• Recognition Programs: Administer the logistics and communications for employee recognition programs, including nomination reviews, slide updates, manager notifications, and award delivery
• Calendar Management: Maintain the internal communications editorial calendar to keep coordination and scheduling on track
• Targeted Campaign Rollouts: Project manage the execution of internal comms projects and messaging

What we're looking for:

• 2–3+ years of hands-on experience in internal communications, corporate communications, employee engagement, or marketing operations
• Ability to work in person at our Devens, MA campus to support hands-on meeting execution and cross-functional team coordination
• Strong writing, proofreading, and line-editing skills with an ability to turn raw information into clear, easy-to-read employee communications
• Strong visual eye for presentation design, layout formatting, and brand consistency (Google Slides)
• Comfortable using generative AI tools as an efficiency multiplier in daily workflows
• Ability to take direction from the Head of Internal Communications, manage tight daily deadlines, and work effectively with cross-functional partners across the company

Must-have requirements:

• Perform extended activities such as stooping, climbing, typing, standing, sitting, etc.
• Willingness to travel or work required nights/weekends/on-call regularly
• Dedication to safety to mitigate hazards that may include heat, cold, noise, fumes, strong magnets, lead, high voltage, and cryogenics

\n$40 - $50 an hourThis is a contract position\n

#LI-Hybrid

At CFS, we excel in fast-paced environments, driven by our values of integrity, execution, impact, and self-critique. As we grow, we’re eager to bring on mission-driven folks who offer diverse perspectives and fresh ways to tackle challenges.

We value diversity deeply and are proud to be an equal opportunity employer by choice. We consider all qualified applicants equally, regardless of race, color, national origin, ancestry, citizenship status, protected veteran status, religion, physical or mental disability, marital status, sex, sexual orientation, gender identity or expression, age, or any other basis protected by law.

This role requires compliance with U.S. laws concerning the export of controlled or protected technologies or information (collectively, “Export Control Laws"). Any offer of employment will be contingent on the need for compliance with such Export Control Laws.