Executive Assistant

Osanni Bio; San Francisco (CA); On-site; USD 135,000 - 162,000; Full time

Job summary

Osanni Bio seeks a senior Executive Assistant to partner with the CEO, CBO, CFO, and VP Legal, delivering sophisticated administrative and strategic support. You will own multi-executive calendars, travel and expenses, and board communications, acting as a trusted contact for leadership and external stakeholders.

The role requires discretion, emotional intelligence, and the ability to anticipate needs amidst shifting priorities.

Qualifications

• 8+ years of experience as a senior-level Executive Assistant supporting CEO and other C-suite executives.

Responsibilities

• Own multi-executive calendar management and prioritization across competing demands.
• Coordinate domestic and international travel arrangements, itineraries, and expenses.
• Manage Board communications and materials, including scheduling and follow-up for meetings.

Skills

Calendar management

Executive partnerships

Discretion & trust

Communication

Education

Bachelor's degree preferred

Tools

Microsoft Office

Google Workspace

Zoom

Slack

DocuSign

Job description

The Executive Assistant is a senior, highly trusted partner to Osanni's CEO, CBO, CFO, and VP Legal. They will be responsible for providing sophisticated administrative and strategic support that keeps this part of the executive office running smoothly.

This Executive Assistant owns multi-executive calendaring, travel, expenses, and Board communications, serving as a trusted point of contact for leadership, employees, and external stakeholders. The role requires deep familiarity with each executive's priorities and working style, plus the judgment to make prioritization calls on their behalf. The ideal candidate combines exceptional organization with discretion and emotional intelligence, anticipating needs, communicating clearly at all levels, and thriving amid shifting priorities. As Osanni grows, this role is essential to keeping leadership focused on our mission.

• Serve as a true partner to the CEO, CBO, CFO, and VP Legal, owning complex, multi-executive calendar management and making real prioritization calls across competing demands, informed by each executive's priorities (professional and personal), familiarity with the broader leadership team, and the needs of the business
• Build each calendar around the executive's preferred meeting formats and rhythms, including whether a request warrants 30, 45, or 60 minutes; a call versus video versus in-person; and when travel or commute schedules can or cannot accommodate calls
• Anticipate executive needs, proactively resolve scheduling conflicts, and remove administrative roadblocks so leaders can focus on high-priority work
• Help executives stay ahead of meaningful dates, both business milestones and personal ones for them and their teams, flagging them with enough lead time to plan a thoughtful, timely acknowledgment

Travel & Expenses

• Coordinate domestic and international travel arrangements, itineraries, and logistics, and prepare and submit expense reports in a timely manner

Board & Stakeholder Communications

• In partnership with the Chief Business Officer (CBO), manage Board communications and materials, including scheduling, agenda distribution, meeting space and catering logistics, and follow-up for Board of Directors and committee meetings
• Schedule investor and business development meetings, coordinating across time zones and with external parties to ensure seamless preparation and follow-through
• Serve as a professional point of contact between the executive team and internal employees as well as external stakeholders

Document & Administrative Support

• Prepare, proofread, and format correspondence, presentations, and documents, ensuring accuracy and polish
• Support the VP Legal with document management, signature routing, and tracking of contracts and corporate records

Events & Culture

• In partnership with the Culture Team, may help organize company events, offsites, and other team gatherings

Confidentiality & Ways of Working

• Handle highly confidential corporate, financial, legal, and personnel information with discretion and sound judgment
• Manage multiple priorities in a fast-paced, evolving environment, ensuring deliverables are completed accurately and on time, while performing other related duties as required

What You Bring:

• Bachelor's degree preferred, or equivalent combination of education and experience
• 8+ years of experience as a senior-level Executive Assistant supporting CEO and other C-suite executives, including experience supporting multiple executives simultaneously in a fast-paced, high-growth environment
• Experience coordinating Board of Directors meetings and interacting with board members, investors, and outside counsel
• High emotional intelligence and strong relationship-building instincts, with a demonstrated ability to earn executives' trust, understand their priorities, and act as a calm, professional “gatekeeper”
• Advanced proficiency with Microsoft Office and collaboration tools such as Google Workspace, Zoom, Slack, and DocuSign
• Exceptional organizational skills and attention to detail, with the ability to manage complex calendars and competing priorities
• Excellent written and verbal communication skills, with a professional and approachable presence at all levels
• Proven discretion and sound judgment in handling highly confidential corporate, financial, legal, and personnel information
• Proactive, resourceful, service-oriented working style, with the flexibility to adapt as priorities shift
• Experience in biotech, pharmaceutical, or life sciences companies strongly preferred
• Experience in a venture-backed startup or similarly fast-paced environment a plus

The expected base pay range for this position is $135,000 - $162,000 plus bonus and comprehensive benefits. The base pay range reflects the target range for this position, but individual pay will be determined by additional factors such as job-related skills, experience and relevant education or training.

We are committed to creating a diverse environment and are proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

We will provide an intellectually stimulating, collegial and fast-paced environment. If you are ready to be a part of building the future of transformative medicines, then we are excited to hear from you!