Office Assistant Senior

As part of our total benefit package, Macomb County proudly offers medical, dental, and vision coverage, with no monthly premium to employees for single, two (2) person or family coverage. Health care, dental and vision benefits are effective the first day of employment.
Office Assistant Senior
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Office Assistant Senior
Salary
$41,328.19 - $53,454.55
Department
Community Mental Health
Opening Date
08/13/2026
Closing Date
08/27/2026 12:00 a.m.
FLSA STATUS:
Non-exempt - overtime pursuant to Collective Bargaining Agreement
EMPLOYMENT RELATIONSHIP:
Just cause subject to probationary period
CURRENT HOURS AND STARTING TIME:
Full-time (37.5 hours per week) position. The current start time for this position is 8:30 a.m.
General Summary
Performs a variety of clerical and/or accounting duties, which require an understanding of departmental operations, a high degree of accuracy and independent judgment.

Essential Duties & Responsibilities
Determines eligibility for programs funding in following policies and program directives.
Performs data entry for record keeping, tracking, registration, inventory and ordering.
Maintains inventory of perishable/non-perishable supplies and materials.
Updates and maintains computer records at the office, County and State of Michigan level.
Processes invoices as accounts payable/receivable, prepare and submit requests for payment of invoices and post payments entries.
Answers procedural questions regarding various departmental functions, duties, actions and procedures, schedule appointments, set court dates, etc.
Assists customers in person, on line or over the telephone.
Receives (cashier), process and deposit payments/money for fees, fines, assessments, permits, tax payments, prepare and make daily bank deposits, etc.
Performs bookkeeping to balance accounts, requests check, make journal entries, maintain spread sheets, etc.
Prepares a variety of documents and correspondence using personal computers, printers, email, and other electronic means for Department Heads, Elected Officials, Managers, Supervisors and others.
Operates a variety of computer database software programs required for efficient operation of services.
Manages and accounts for petty cash operations.
Arranges Interpreter Services, coordinate scheduling and process billing arrangements.
Enters payroll data, run verification reports, split time to multiple funding sources.
Audits accounts (internal/external), verify debits/credits, apply appropriate adjustments and update account status.
Reviews forms, letters and legal documents for accuracy, correcting errors or rejecting forms to the originator to have them corrected and resubmitted.
Maintains a variety of department, program and office operational records including registrations, licenses, credentials of staff, attendance, property/land ownership, leases and contracts, etc.
Provides office administration and phone support to department staff, supervisors, managers and department directors.
Schedules appointments, events, hearings and or meetings for staff, consultants, attorneys and others.
Operates standard office equipment such as personal computers, facsimile machines, copiers, scanners, calculators and adding machines.
Operates an automobile to perform assigned job functions.
Performs related duties as assigned.
Qualifications
Required

Education and Experience
High school diploma or GED equivalent
One (1) year of office clerical work experience
Required Licenses Or Certifications
Possession of a valid Michigan driver’s license and operable, insured automobile for authorized travel
Preferred Education And Experience
Associates degree or higher
Three (3) or more years of office clerical, bookkeeping or accounting related work experience
Knowledge Of
COMPETENCIES FOR SUCCESSFUL PERFORMANCE OF

JOB DUTIES:

Modern office procedures and methods
Various and specialty designated data processing/computer systems and applications for office administration across many departments in the County
Principles and practices of basic bookkeeping and invoice processing
General clerical/administrative support and secretarial processes common to office administration
Accounts receivable and payable procedures
Payroll processing and timekeeping
Manual and electronic filing and record keeping procedures and retention schedules
HIPAA and other laws or County policies for maintaining record confidentiality
County, State of Michigan and department policies and practices for ordering and maintaining inventory of necessary supplies for daily office/clinic or department operation
A variety of programs eligibility, enrollment and verification policies and practices
Database applications and report writing, data mining and collection for operational review (Financial/Electronic Medical Records, Court Case Management and others)
Skill In
Interpersonal skills necessary to develop and maintain effective and appropriate working relationships with staff and the public
Providing customer service to internal and…