Executive Business Assistant

About the role

RADICL is seeking a highly organized, detail-oriented Executive Business Assistant (EBA) to support the CEO and executive leadership team. This role is a critical execution partner within the executive office, helping ensure priorities, logistics, and administrative workflows run smoothly and reliably. 

The Executive Business Assistant works closely with the Chief of Staff to support executive functions including calendar management, communications, scheduling, travel, and administrative operations. This is a high trust, hands-on role for someone who thrives in a fast-paced environment and takes pride in bringing structure, clarity, and follow through to complex executive operations. As an early team member, you will work closely alongside an experienced founding team and have a meaningful impact on the efficiency and effectiveness of company leadership. 

If the above excites you, RADICL Defense is seeking high performing, motivated individuals to join our mission!

About You

You thrive in fast paced environments and bring a calm, proactive, and execution focused mindset. You value precision, organization, and follow-through, while remaining flexible as priorities evolve. You communicate clearly, handle sensitive information with discretion, and take pride in being a trusted partner who helps leaders operate at their best. You want your work to matter and to be part of building something great. 

As a RADICL Executive Business Assistant, you will:

• Partner with the Chief of Staff to support and execute CEO calendar management, ensuring strong prioritization, time protection, and scheduling logic  

• Execute scheduling updates, meeting coordination, and logistical adjustments aligned to CEO priorities  

• Coordinate meetings end-to-end, including agendas, preparation materials, logistics, and follow-ups 

• Triage and route executive communications including email; draft light correspondence where appropriate  

• Plan and manage detailed travel logistics and complete itineraries  

• Maintain executive operating cadence through reminders, routines, and structured weekly workflows  

• Provide personal administrative support as needed (appointments, logistics, errands) 
  
  

Founder & Executive Team Support 

• Schedule and coordinate meetings for the founding team, ensuring smooth execution, logistics, and preparation  

• Schedule and coordinate cross functional meetings for the broader executive team, supporting alignment and efficient collaboration  

• Provide administrative and logistical support that improves executive workflow and efficiency 

 
Operational & Administrative Support 

• Prepare and process executive expenses, reimbursements, receipts, and documentation  

• Support internal meeting operations, including scheduling, room coordination, and materials logistics  

• Provide logistical support for company meetings and events (materials preparation, scheduling, coordination, and onsite execution support — not content creation)  

• Handle ad hoc administrative needs that keep the executive office running smoothly 
  
  

Your skillset/experience should include:

• 3–7 years of Executive Assistant or senior administrative support experience, ideally supporting C-suite leaders  

• Strong calendar execution, communication handling, and logistical coordination skills  

• Exceptional organizational skills, attention to detail, and follow-through  

• Professional maturity and comfort handling confidential information  

• Strong written and verbal communication skills  

• Proficiency with Microsoft Office, and modern productivity tools  

• Comfortable navigating ambiguity and frequent context switching  

• Proactive mindset with the ability to anticipate needs and close gaps before they escalate [Add Desired
  
  

About the Workplace

At RADICL, we prioritize our culture and believe the strongest teams are built through daily, side-by-side collaboration and experiential sharing. We also value individual freedom and flexibility. For this reason, we have a hybrid work model. As a team, we are in office M/W/Th with work-from-home on Tuesdays and Fridays. For remote positions, periodic travel to Boulder will be expected to participate in company events and meaningful side-by-side collaboration opportunities.

RADICL offices are in downtown Boulder, Colorado with easy-to-access employee parking provided by the company. We offer comprehensive, competitive benefits including health, dental, and vision as well as 401K and a responsible PTO plan.

We encourage motivated, talented, mission-oriented, and fun people to apply. Let’s do this!