Posted June 27, 2026
Executive Assistant to the CEO & Chief of Staff - 890
Quantinuum
Broomfield, Colorado, United States 80020
Full Time
Reference: 285506097
Executive Assistant to the CEO & Chief of Staff - 890
We are seeking an Executive Assistant to the CEO & Chief of Staff for our Broomfield, CO location.
Quantinuum believes that employees work better, more efficiently, and more collaboratively in close proximity to other employees, where ideas can be exchanged readily, and decisions can be made more quickly for the benefit of the Company and our customers. All employees should work at their assigned location; however, this role may offer the opportunity to work remotely up to 2 days per week, with approvals.
We are a newly public, high-growth deep technology company entering an exciting new phase of scale and market leadership. Following a successful IPO, we are rapidly expanding our global workforce, operational footprint, and customer engagements while building the infrastructure and processes required to support long-term growth.
The Executive Assistant to support our CEO and Chief of Staff will serve as the leader of the Executive Assistant function across the company. This is a highly visible role for a seasoned professional who thrives in fast-paced, dynamic environments and can operate with discretion, judgment, and confidence at the highest levels of an organization.
The successful candidate will be a strategic business partner to the CEO's office, capable of managing complex priorities, coordinating global activities, supporting Board interactions, and driving operational excellence across executive support functions.
Key Responsibilities:
Executive Support
- Provide comprehensive support to the CEO and Chief of Staff, managing highly complex calendars, competing priorities, and strategic scheduling decisions.
- Coordinate extensive domestic and international travel, often on short notice, including detailed itineraries, logistics, briefing materials, and contingency planning.
- Prepare and manage executive meeting agendas, briefing documents, presentations, and follow-up actions.
- Serve as a trusted gatekeeper and advisor, ensuring the CEO's time is allocated effectively against strategic priorities.
- Anticipate issues before they arise and proactively develop solutions in a rapidly evolving environment.
Leadership of Executive Assistant Function
- Lead and coordinate the company's Executive Assistant team, establishing best practices, processes, and standards across executive support activities.
- Mentor and develop EA staff while fostering a culture of collaboration, responsiveness, and professionalism.
- Drive consistency and operational excellence in executive support across the organization.
- Partner with senior leaders to continuously improve executive operations as the company scales.
Board of Directors Support
- Support the CEO, Chief of Staff, and Corporate Secretary in planning and executing Board and committee meetings.
- Coordinate logistics, materials, communications, and meeting preparation for the company's independent Board of Directors.
- Maintain confidentiality and professionalism when interacting with Board members and senior advisors.
- Assist with Board-related travel, meeting scheduling, and follow-up activities.
Executive and External Engagement
- Act as a primary point of contact for internal and external stakeholders on behalf of the CEO's office.
- Build effective relationships with executive offices across customers, partners, investors, government organizations, and peer companies.
- Interface confidently and professionally with fellow CEOs, Board members, investors, and senior executives.
- Support executive events, leadership offsites, customer engagements, and strategic company initiatives.
Operational Excellence
- Drive special projects and cross-functional initiatives on behalf of the CEO and Chief of Staff.
- Manage sensitive and confidential information with the highest level of discretion.
- Create structure and organization amid ambiguity while maintaining exceptional attention to detail.
- Help scale executive office processes to support the company's rapid growth trajectory.
YOU MUST HAVE:
- Bachelor’s Degree minimum
- 10+ years of experience supporting C-level executives, including significant experience supporting a CEO or equivalent senior executive.
- Experience working within a publicly traded company, preferably during periods of rapid growth, transformation, or post-IPO scaling.
- Demonstrated experience supporting Board of Directors activities and executive governance processes.
- Proven success managing complex domestic and international travel schedules.
- Experience leading or coordinating executive support teams.
- Exceptional organizational, communication, and project management skills.
- Strong executive presence, judgment, and interpersonal skills.
- Ability to operate effectively under pressure and adapt quickly to changing priorities.
- Absolute discretion and integrity in handling highly confidential information.
- Advanced proficiency with Microsoft Office, Outlook, PowerPoint, Teams, and modern collaboration tools.
- Due to Contractual requirements, must be a U.S. Person defined as, U.S. citizen permanent resident or green card holder, workers granted asylum or refugee status.
WE VALUE:
- Experience in a technology, deep technology, engineering, semiconductor, AI, quantum computing, aerospace, advanced manufacturing, or similar innovation-driven environment.
- Experience supporting executive interactions with investors, analysts, and public company stakeholders.
- Experience working with globally distributed leadership teams.
Non-Incentive Eligible
Compensation & Benefits:
The pay range for this role is $80,000 – $120,000 annually. Actual compensation within this range may vary based on the candidate’s skills, educational background, professional experience, and unique qualifications for the role.
Quantinuum is the world leader in quantum computing. The company’s quantum systems deliver the highest performance across all industry benchmarks. Quantinuum’s over 650 employees, including 400+ scientists and engineers, across the US, UK, Germany, and Japan, are driving the quantum computing revolution.
By uniting best-in-class software with high-fidelity hardware, our integrated full-stack approach is accelerating the path to practical quantum computing and scaling its impact across multiple industries.
By joining Quantinuum, you’ll be at the forefront of this transformative revolution, shaping the future of quantum computing, pushing the limits of technology, and making the impossible possible.
What’s in it for you?
A competitive salary and innovative, game-changing work
Flexible work schedule
Employer subsidized health, dental, and vision insurance
401(k) match for student loan repayment benefit
Equity, 401k retirement savings plan + 12 Paid holidays and generous vacation + sick time
Paid parental leave
Employee discounts
Quantinuum is an equal opportunity employer. You will be considered without regard to age, race, creed, color, national origin, ancestry, marital status, affectional or sexual orientation, gender identity or expression, disability, nationality, sex, or veteran status. Know Your Rights: Workplace discrimination is illegal
Applications will be accepted on an ongoing basis, there is no application deadline for this position.
$80,000 - $120,000 a year
Equal employment opportunity, including veterans and individuals with disabilities.
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