Tustin
Position Summary The Office Manager/Administrative Assistant is an administrative and operational leader responsible for ensuring the efficient, compliant, and professional functioning of office operations, systems, and infrastructure. Reporting to the Senior Director of Operations, this role serves as the central hub for office administration, technology, HR compliance, board and committee support, donor and data management, and executive support. The Office Manager is the first point of contact for the organization and maintains a high standard of professionalism, accuracy, and service across all departments. Key Responsibilities Office Operations & Administration · Oversee all daily operations of the office. · Serve as the first point of contact for visitors, callers, and general inquiries; direct individuals to appropriate staff. · Manage incoming and outgoing mail; order and maintain office and kitchen supplies. · Prepare office, conference rooms, and meeting spaces as needed. · Ensure office areas are maintained, and operational needs are addressed promptly. · Oversee administrative staff to ensure duties are clearly understood and executed to the highest standard. Communications & Front Desk Management · Manage the companies' information email inbox and phone line. · Respond to inquiries from nonprofits and individuals seeking assistance; route requests appropriately. · Return voicemails and emails in a timely, professional manner. · Generate thank-you letters, donor receipts, and correspondence; upload documentation to SharePoint. · Assist the Executive Director and Senior Director of Operations with correspondence, presentations and collateral material as needed. Systems, Technology & Data Management · Provide oversight of IT systems, technology infrastructure, and data management. · Manage CRM (Salesforce) and ensure data accuracy, cleanliness, and monthly audits. · Provide Salesforce access and training support for staff. · Assign and manage staff email accounts, phone numbers, Outlook access, and Zoom accounts. · Set up, remove, replace, and upgrade computer hardware and software. · Maintain SharePoint structure and ensure important documents are stored and accessible. · Research and implement new payment platforms and systems as needed. Finance & Donation Administration · Manage all incoming donations, pledges, campaign giving, and receivables. · Electronically deposit checks and upload records to Salesforce and SharePoint. · Track monetary and in-kind donations, including volunteer hours, and reconcile with internal teams. · Scan, code, and route invoices for approval; process and approve administrative invoices. · Produce annual 1099 forms for all workers. · Assist with payments for debt, insurance, real estate taxes, and other obligations. · Support the Finance Director and Senior Director of Operations with audit documentation and reporting accuracy. Human Resources & Compliance · Maintain all HR staff files and documentation. · Coordinate onboarding and offboarding staff, including exit interviews. · Administer staff insurance enrollment, timecards, payroll coordination, and benefit documentation. · Review and manage annual performance reviews and goal alignment. · Support staff development, coaching, and interpersonal communication. · Monitor and document HR compliance incidents and risk mitigation. · Ensure compliance with employment laws, internal policies, and nonprofit best practices. Payroll & Benefits Administration · Administer time and attendance systems. · Manage payroll processing and tax coordination with external providers. · Maintain internal accounting and cloud-based systems related to payroll and benefits. · Review and recommend medical, dental, life, and other insurance plans annually in coordination with the Senior Director of Operations and Finance Director; communicate changes to staff. Board, Committee & Governance Support · Prepare Board of Directors, Executive Committee, and Committee agendas and minutes. · Ensure all minutes are signed, recorded, filed, and uploaded to SharePoint appropriately. · Maintain Board action tracking and ensure staff access to governance documents. · Assist with new Board Member packets, annual paperwork, and demographic surveys. · Coordinate Asset and Finance Committee logistics, agendas, minutes, reports, and Zoom meetings. · Support recruitment efforts for Board and committee members. Calendar, Meetings & Events · Manage organizational calendars and coordinate meetings across departments. · Schedule meetings for the Executive Director, Senior Director of Operations, and Senior Leadership Team. · Create Zoom meetings and calendar invitations. · Prepare staff meeting agendas and minutes; distribute finalized notes to staff. · Manage RSVPs for events, including elected officials, and coordinate day-of logistics. · Create Doodle polls and surveys as needed. Executive & Leadership Support · Support the Senior Director of Operations, Executive Director, and Leadership Team with documentation, presentations, and reporting. · Create presentations using PowerPoint, Canva, or other tools. · Maintain manager-level responsibility and operational oversight across administrative functions.