Senior Administrative Coordinator

Job Title

Senior Administrative Coordinator

Chicago, IL - Southside

Contract-to-Hire

$28.00 - $30.00 per hour

Monday-Friday | 8:00 AM - 5:00 PM | 100% Onsite

This position is eligible for medical, dental, vision, and 401(k).

Addison Group is partnering with a respected nonprofit organization seeking a Senior Administrative Coordinator to support executive leadership and oversee day-to-day administrative operations. This role is ideal for an experienced administrative professional who enjoys managing multiple priorities, improving office processes, and leading administrative support functions in a mission-driven environment.

The Senior Administrative Coordinator will provide executive-level administrative support while ensuring efficient office operations across multiple departments. This individual will partner closely with senior leadership, coordinate department-wide administrative initiatives, oversee front office operations, and supervise the receptionist. The ideal candidate is highly organized, collaborative, and passionate about supporting a meaningful mission.

• Provide comprehensive administrative support to executive leadership, including complex calendar management, meeting coordination, travel arrangements, and scheduling.
• Organize meetings by preparing agendas, presentations, reports, and meeting materials while documenting notes and tracking follow-up items.
• Draft, edit, and distribute professional correspondence, reports, presentations, and confidential documents.
• Manage incoming communications, prioritize requests, and route inquiries appropriately.
• Process purchase requests, expense reports, invoices, and other administrative documentation.
• Coordinate department calendars, meetings, trainings, special events, and leadership initiatives.
• Standardize administrative procedures, templates, and documentation to improve consistency across teams.
• Collect, organize, and submit reports and departmental information for leadership.
• Assist with onboarding and administrative orientation for new team members.
• Oversee daily office operations, including reception, conference room scheduling, office supplies, mail distribution, and shared resources.
• Supervise and provide guidance to the receptionist while promoting excellent customer service.
• Serve as the primary point of contact for facilities, technology, security, and other internal support teams.
• Identify opportunities to improve administrative workflows and office efficiency.
• Foster collaboration among administrative staff and support cross-functional communication.

• High school diploma or equivalent required.
• Previous experience as an Executive Assistant, Office Manager, Senior Administrative Assistant, or similar administrative leadership role.
• Demonstrated career progression in administrative support positions.
• Prior experience supervising or leading administrative staff.
• Background working within a nonprofit or mission-focused organization strongly preferred.
• Experience coordinating large meetings, events, or organizational initiatives.
• Strong proficiency with Microsoft Office Suite, including Outlook, Word, Excel, PowerPoint, and Teams.
• Excellent organizational, communication, and multitasking skills.
• Ability to maintain confidentiality and exercise sound judgment.
• Comfortable working independently while partnering effectively with executive leadership and cross-functional teams.
• Professional, compassionate, and service-oriented approach with strong interpersonal skills.
• Looking for someone who is collaborative, dependable, detail-oriented, and passionate about supporting a mission-driven organization.
• Join a purpose-driven organization making a positive impact in the community.
• Work directly with executive leadership and gain high-level exposure.
• Leadership opportunity with oversight of office administration and reception.
• Collaborative and supportive team environment.

Addison Group is an Equal Opportunity Employer. Addison Group provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, gender, sexual orientation, national origin, age, disability, genetic information, marital status, amnesty, or status as a covered veteran in accordance with applicable federal, state and local laws. Addison Group complies with applicable state and local laws governing non-discrimination in employment in every location in which the company has facilities.

Reasonable accommodation is available for qualified individuals with disabilities, upon request.