Executive Assistant & Office Manager

Ossium Health•Indianapolis, IN

4d•Onsite

About The Position

Ossium’s mission is to improve the health, vitality, and longevity of human beings through bioengineering. We develop, manufacture, and bank cell therapy products that apply the power of stem cell science to revolutionize treatment for patients with blood, immune, and orthopedic diseases. At Ossium, we empower our employees, maintain the highest standards of operational excellence, and are a force for good. We’re hiring an experienced, exceptionally organized, and positive Executive Assistant/Office Manager to support our Chief Science Officer (CSO) and the needs of the Indianapolis office. In this role, you will serve as a trusted partner and organizational anchor—someone who thrives on making things run smoothly, anticipates needs before they arise, and brings a friendly, can-do attitude to every interaction. You’ll manage complex scheduling, communications, travel, and office coordination while supporting team operations in a fast-paced, mission-driven environment. This is a great opportunity if you love creating order out of chaos, enjoy helping others succeed, and take pride in being the “go-to” person who makes things happen.

Requirements

3+ years of experience as an Executive Assistant or in a similar high-level administrative role, ideally supporting C-level executives
Excellent written and oral communication skills
Proven ability to stay organized and maintain exceptional attention to detail in a dynamic, fast-paced environment
Strong time management skills and ability to juggle multiple priorities gracefully
High degree of professionalism, discretion, and judgment when handling sensitive information
Positive, friendly, and proactive attitude—you take ownership and get things done
Proficiency with Microsoft Office Suite and Google Workspace (Docs, Drive, Gmail, Calendar)
This position is based on-site full time (Monday - Friday) in our Indianapolis office

Nice To Haves

Previous experience working in a startup or entrepreneurial setting
Experience as an office manager
Familiarity with HR systems, travel coordination, and interview scheduling tools (e.g., Rippling, Zoom, Google Drive)

Responsibilities

Manage a complex executive calendar, anticipating conflicts, reviewing and resolving double-bookings, and ensuring seamless scheduling
Coordinate Tier meetings and other leadership meetings, including scheduling, agenda preparation, materials, and clear communication of schedules and expectations
Book and manage all travel arrangements, ensuring efficiency, cost-effectiveness, and a smooth experience
Track and support the CSO’s continuing education requirements, deadlines, and related logistics
Prepare, edit, and maintain high-quality PowerPoint presentations for internal and external meetings
Capture meeting notes, ensure consistency in documentation, and follow through on action items
Support recognition efforts, including reminders, coordination, and execution of acknowledgments and milestones
Handle communications with professionalism, discretion, and positivity on behalf of the CSO
Process expenses, manage invoices, and maintain organized, accessible documentation
Take on new challenges with enthusiasm—no task too big or too small—while continuously looking for ways to improve efficiency and consistency
Represent Ossium with warmth and professionalism in all internal and external interactions
Support onboarding for new hires and coordinate candidate interviews to ensure a positive, organized experience
Manage day-to-day operations of the Indianapolis office, including office supplies, catering, events, and vendor relationships
Greet visitors and ensure proper sign-in and escort procedures
Partner with the People Team to plan company events, celebrations, and recognition moments
Designing and owning a streamlined internal communications rhythm, including a monthly newsletter and consistent weekly digital site updates to keep teams informed and connected
Establishing and maintaining clear, consistent meeting documentation, presentation standards, and executive workflows
Supporting a smooth and scalable onboarding experience as Ossium continues to grow
Partnering with leaders and the People Team to support culture-improvement ideas and initiatives for 2026