Office Manager/Firm Administrator

About the Role

Millington & Co. is a public accounting firm seeking an experienced operations leader to run the internal engine of our business.

This is a senior-level role, not an administrative support position.

You will be responsible for driving firm operations across human resources, billing, collections, and workflow management. You will work directly with firm leadership to improve profitability, accountability, and execution.

If your background is primarily administrative (calendar management, front desk, basic clerical work), this role will not be a fit.

What You’ll Own

Firm Operations & Execution

• Own day-to-day operations across multiple office locations
• Identify inefficiencies and implement systems to improve performance
• Drive accountability across staff to ensure deadlines and deliverables are met

HR Leadership

• Lead hiring, onboarding, and employee lifecycle processes
• Manage performance tracking, reviews, and personnel issues
• Ensure compliance with employment regulations and firm policies

Billing, WIP & Collections

• Take ownership of billing cycles, WIP management, and realization
• Actively manage A/R and lead collections efforts
• Partner with partners to improve cash flow and pricing discipline

Workflow & Capacity Management

• Manage firm-wide workflow for tax, accounting, and advisory projects
• Ensure deadlines are met and team capacity is optimized
• Implement and enforce project management systems

Team & Administrative Leadership

• Supervise administrative staff and hold them accountable to performance standards
• Oversee internal systems, vendors, and operational infrastructure
• Act as the operational bridge between staff and firm leadership

Required Experience

• 5+ years in an operations, office management, or similar leadership role
• Prior experience in public accounting or a professional services firm strongly preferred
• Direct experience with billing, collections, and workflow management
• Experience managing people, not just tasks
• Proven ability to improve processes and hold a team accountable

Who This Role Is For

• You think like an operator, not a task executor
• You are comfortable having hard conversations and enforcing standards
• You take ownership of outcomes, not just responsibilities
• You can manage both people and numbers (utilization, realization, deadlines)

Who This Role Is NOT For

• Candidates with primarily administrative or clerical backgrounds
• Those without experience in billing, collections, or team management
• Individuals looking for a purely supportive or task-based role

Compensation & Benefits

• Competitive base salary starting at $70,000 + (DOE)
• 4 Weeks PTO & 10+ paid holidays
• 401(k) with employer match
• Firm sponsored health insurance and other benefits

Job Type: Full-time

Pay: $70,000.00 per year

Benefits:

• 401(k)
• 401(k) matching
• Dental insurance
• Paid time off
• Referral program

Work Location: In person