Post Office Jobs 2026 (Now Hiring) – Smart Auto Apply

Definium Therapeutics is a late-stage clinical biopharmaceutical company and our mission is to forge a new era of psychiatry by applying scientific rigor to psychedelics, with the goal of developing accessible treatments that unlock healing at scale.  

Our lead product candidate, lysergide tartrate (our proprietary orally disintegrating tablet form of lysergide (LSD) D-tartrate), represents a highly differentiated, potential best-in-class opportunity for patients suffering from generalized anxiety, major depressive disorder, and posttraumatic stress disorder. Our early stage pipeline includes DT402, the R-enantiomer of MDMA and is under development to target the core symptoms of autism spectrum disorder (ASD), specifically addressing social communication challenges.     

Guided by the recognition that patients deserve more than better, Definium is relentlessly advancing a new generation of therapeutics intended to address the underlying causes of psychiatric and neurological disorders. By turning evidence into impact, Definium aims to change the trajectory of today's mental health care crisis and enable a healthier future. Headquartered in New York, Definium Therapeutics trades on Nasdaq under the symbol DFTX. 

Together we are moving psychiatry forward-beyond better, into a boundless future. Join us!

The Executive Assistant, Finance & Office Manager will provide executive, administrative, and operational support to the Finance organization while serving as a key coordinator for Definium's San Diego office.

Reporting to the Chief Financial Officer (CFO), this highly visible role will provide direct support to this executive and the Finance leadership team, coordinate investor relations activities, manage office operations, and partner closely with stakeholders across the organization to ensure seamless execution of meetings, travel, conferences, events, and day-to-day operations.  Will work closely with leaders across the Finance organization, the Investor Relations team, Procurement, Enterprise Technology, Executive Leadership Team, and administrative partners throughout the company. 

Key responsibilities include but not limited to the following:

• Provide executive, administrative, and operational support to the CFO and Finance leadership team including support to broader Finance team operations and special projects as needed
• Be onsite in the San Diego office 3 days per week
• Coordinate the CFO's calendar in partnership with the CEO's Executive Assistant, including investor meetings, conferences, and key corporate activities
• Serve as the primary coordinator for Definium's San Diego office
• Manage office operations, supplies, workplace resources, facilities coordination, vendor relationships, and workplace services
• Coordinate routine employee events, celebrations, and local office activities
• Support onboarding activities for San Diego-based employees
• Partner with cross-functional teams to ensure a professional, welcoming, and productive office environment
• Act as a resource for employees and visitors regarding office-related matters
• Coordinate domestic and international travel arrangements and related logistics
• Prepare itineraries, agendas, briefing materials, and meeting logistics
• Coordinate departmental meetings, offsites, team activities, leadership events, investor relations related meetings and board and committee meetings 
• Screen and prioritize meeting requests while helping resolve scheduling conflicts
• Track action items and follow-ups from key meetings and leadership discussions
• Process expense reports, invoices, and other departmental administrative needs
• Partner closely with executive assistants across the organization to coordinate schedules, travel, meetings, and executive priorities
• Assist with other special projects and other corporate initiatives as needed

Qualifications:

• Bachelor's degree or equivalent experience 
• Minimum 7 years of experience supporting senior executives in a public company
• Experience in biotechnology, life sciences, healthcare, or similarly fast-paced environment
• Experience supporting C-suite executives and/or executive leadership teams
• Experience supporting Finance or Executive Leadership functions preferred
• Experience coordinating executive travel, conferences, corporate events, and complex scheduling activities
• Experience managing office operations, facilities, vendors, or workplace services
• High proficiency with Microsoft Office, Outlook, Zoom, and related productivity tools
• Demonstrated ability to manage multiple priorities while maintaining exceptional attention to detail
• Highly organized, proactive, detail-oriented, and exercises exceptional discretion and judgment in a fast-paced public company environment
• Must be able and willing to come into the San Diego office 3 days per week

The starting base pay range for this position is $80,000.00 - $115,000.00. Compensation will be determined based on several factors including, but not limited to, skill set, years of experience, and the employee's geographic location.

Employees in this role may be entitled to additional compensation, including bonus and equity. Benefits information is listed on our Jobs Page. The Company provides competitive benefits to employees including:

• 100% paid health benefits including Medical, Dental and Vision for you and your dependents
• 401(k) program with company match and vesting after the turn of the first month after your start date
• Flexible time off
• Generous parental leave and some fun fringe perks!