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Office Manager
Koloma
Operations
Denver, CO, USA
Posted on Sep 12, 2025
Koloma is a cutting-edge hydrogen start up, backed by some of the top climate tech investors on the planet. Our team, led by seasoned energy executives and world-renowned technical thought leaders, is developing technologies that will enable the production of low cost, reliable, carbon-free hydrogen.
Role
We are looking for a highly organized and proactive Executive Administrator and Office Manager to support our dynamic company. This position requires a dynamic professional who can efficiently manage office operations while providing high-level administrative support to executives. The ideal candidate will have exceptional ability to work on various projects, strong communication skills, and keen attention to detail to ensure seamless daily operations and administrative support with a high degree of discretion.
Candidate Requirements
- Bachelor’s degree in Business Administration, Management, or a related field preferred.
- 5+ years of experience as an Office Manager, Executive Assistant, or similar role in a corporate atmosphere.
- Exceptional organizational and time-management skills, with the ability to multitask in a dynamic environment.
- Excellent written and verbal communication skills, with a professional and discreet demeanor.
- Proficiency in Microsoft Office Suite (Outlook, Word, Excel, PowerPoint) and collaboration tools (Teams, SharePoint).
- Experience managing confidential and sensitive information with discretion.
- Strong problem-solving skills and ability to anticipate upcoming office and administrative needs.
- Ability to work independently and collaboratively with all levels within the organization and external stakeholders.
Job Responsibilities
- Oversee daily office operations, ensuring a well-organized and efficient work environment.
- Manage office supplies, subscriptions, vendor relationships and facility maintenance.
- Manage facility-related invoicing (parking, cable etc.) and maintenance issues.
- Plan and coordinate office events, team meetings, and employee engagement activities.
- Act as a point of contact for office-related inquiries and external stakeholders.
- Provide high-level administrative support to C-suite executives, including managing schedules making travel arrangements as needed, expense reimbursements, etc.
- Assist in coordinating meetings such as all hands, board meetings, investor meetings, etc.
- Set-up of virtual offices, mail management and office equipment.
- Act as a liaison between executives and internal/external stakeholders, ensuring smooth communication and follow-up.
- Assist with onboarding of new hires, managing office space, and logistics (IT set up, stationary, swag etc.).
- Support special projects, corporate initiatives, and cross-functional team collaborations.
- Assist in coordinating team events, conferences, and industry engagements.
Onboarding Notes
- Koloma provides exceptional benefits including healthcare, vision, and dental and a 401k plan.
- This is an in-office role in Denver, Colorado. Koloma supports flexible schedules and remote work where practical, but maintaining our strong culture, focus, and momentum requires team members to be in-office for up to 80% of working hours.
- Occasional travel and evenings may be required in this role.
- Industry-competitive compensation with significant stock option upside.
- Ideal Start Date: ASAP