Finance & Admin Specialist - Billing, Payroll & AR

Mechanical Service Corporation; Whippany (NJ); On-site; USD 65,000 - 75,000; Full time

Benefits offered by this job

Paid time off

Health insurance

401(k) with company match

Long-term and short-term disability

Job summary

Mechanical Service Corporation (MSC) is seeking an Accounting & Admin Specialist to join our finance team in Whippany, NJ. This in-person role will manage billing, accounts receivable, payroll processing, and collections while supporting the Controller with financial reporting and analysis.

The ideal candidate has 3–5 years of accounting experience in construction or service industries, strong ERP and Excel skills, and the ability to handle multiple priorities in a collaborative environment.

Qualifications

• 3–5 years of accounting experience in construction or service industries.
• Proficient with ERP systems; ServiceTrade a plus.
• Advanced Excel and general computer proficiency.

Responsibilities

• Handle billing for 50+ invoices weekly with supporting documentation.
• Maintain AR aging, conduct collections calls, and send statements.
• Process daily payroll entries and distribute payroll reports.
• Provide admin support for meetings and vendor management.

Skills

Accounting

ERP systems

Excel

Payroll processing

Accounts receivable

Tools

ServiceTrade

ERP software

Excel

Job description

Mechanical Service Corporation (MSC) is seeking an Accounting & Admin Specialist to join our finance team in Whippany, NJ. This in-person role will manage billing, accounts receivable, payroll processing, and collections while supporting the Controller with financial reporting and analysis.

The ideal candidate has 3–5 years of accounting experience in construction or service industries, strong ERP and Excel skills, and the ability to handle multiple priorities in a collaborative environment.