Executive Assistant & Board Coordinator

One Together Solutions (OTS) is a majority Native‑owned healthcare Managed Services Organization headquartered in Boulder, Colorado. We partner with federally recognized tribes to operate opioid treatment programs across California and Washington State by delivering life‑saving care rooted in community trust, cultural humility, and operational excellence. As we scale, we are building a team that reflects our mission and matches the ambition of the communities we serve.

The Executive Assistant & Board Coordinator is a high‑trust, high‑impact role supporting the Chief Executive Officer and serving as the operational backbone of the executive office and board function. This individual will be a proactive partner to the CEO by anticipating needs before they arise, managing competing priorities with precision, and protecting the CEO's time and focus so that it is deployed against the highest‑value opportunities.

This role also provides targeted support to other members of the executive team in select operational areas and serves as a key point of contact for external partners, vendors, and stakeholders on behalf of the executive office.

This role requires exceptional judgment, a commitment to confidentiality, and the polish to represent the CEO and OTS with professionalism across internal and external stakeholders including tribal partners, board members, government contacts, and clinical leaders.

• 5+ years of experience supporting a C‑suite executive, preferably in healthcare, nonprofit, or mission‑driven organizations.
• Demonstrated experience managing board operations and governance documentation.
• Exceptional calendar management skills with a track record of managing complex, multi‑stakeholder scheduling.
• Proficiency in expense management tools and travel booking platforms.
• Advanced PowerPoint skills, with a portfolio of executive‑ and board‑ready presentations that demonstrate design sensibility and the ability to simplify complex content.
• Experience building and maintaining digital document management systems, including folder architecture, version control, and records retention.
• Proficiency maintaining organizational charts and managing updates across a growing, multi‑site organization.
• Experience coordinating company events and procuring branded merchandise, gifts, and recognition items.
• Strong written and verbal communication skills; able to draft polished correspondence and engage external stakeholders independently and professionally.
• High proficiency in Microsoft Office Suite (Word, Excel, PowerPoint, Outlook) and virtual collaboration tools (Zoom, Teams, SharePoint).
• Proven ability to maintain strict confidentiality with sensitive organizational, personnel, and strategic information.
• Self‑starter who anticipates needs, flags issues early, and follows through without prompting.
• Comfortable managing relationships with senior external stakeholders — including executives, government officials, and tribal leaders — with poise and cultural competence.

• Experience supporting executives in tribal health, federally qualified health centers, or healthcare environments.
• Familiarity with board governance platforms (e.g., Board Effect, Boardable, Diligent).
• Experience with document management platforms (e.g., SharePoint, Notion, Google Workspace).
• Experience in a multi‑site or multi‑state organization.

• Manage the CEO's complex and dynamic calendar, including scheduling across multiple time zones, resolving conflicts, and adequate preparation time before high‑stakes meetings.
• Draft, proofread, and prepare executive correspondence, briefings, presentations, and reports on behalf of the CEO.
• Develop and design polished ensuring PowerPoint presentations for executive and board audiences, translating complex information into clear, visually compelling narratives.
• Coordinate travel including flights, lodging, ground transportation, and detailed itineraries with contingency planning built in.
• Process and reconcile expense reports, credit card statements, and reimbursements in a timely and accurate manner for the CEO, and provide expense…