Part-Time Cost Accountant (Manufacturing)

Charlestown, MA (Onsite - Free Parking)

Monday, Tuesday, Thursday ONSITE REQUIRED

8a-5p (25 hours/week) 3 month Contract

Pay Rate: $35-$42/hour, based on experience

Our manufacturing client in Charlestown, MA is seeking a Part-Time Cost Accountant to join a fast-growing finance team. This is a hands-on, staff-level role supporting high-volume daily accounting operations with a strong focus on expense management, inventory, AP, and cost accounting. The ideal candidate is tech-savvy, a quick learner, and eager to improve processes and automation in a scaling environment.

This role will work closely with operations, vendors, and internal stakeholders to support timely closes, accurate cost reporting, and continuous improvement of accounting workflows.

Qualifications

• Bachelor's degree in Accounting or Finance required
• 4+ years of accounting experience in a manufacturing or inventory-driven environment (cost accounting exposure required)
• Manufacturing, hardware, robotics, or technology company required
• Experience automating accounting processes and creating and executing efficiencies

Hands-on experience with:

• AP / AR processing
• Expense coding and high-volume transaction environments
• Working experience with Quickbooks and Nesuite, implementation experience highly considered.
• Advanced Excel skills (pivot tables, data manipulation, reconciliations) required
• Familiarity with Avalara or other sales & use tax platforms preferred
• Detail-oriented, analytical, and proactive; comfortable advocating for improvements
• Self-starter who learns quickly, thinks critically, and "takes the next step"

Key Responsibilities

• Process and review high-volume expense and credit card activity (1,200+ monthly transactions) using Ramp; ensure accurate coding and reconciliation
• Manage Accounts Payable functions, including vendor setup, invoice processing, approvals, and disbursements
• Support Accounts Receivable, including customer invoicing and collections
• Collaborate with operations and production teams to track material, labor, and overhead costs
• Analyze manufacturing costs, inventory transactions, and production overhead for accuracy and efficiency
• Assist with month-end close, including journal entries, reconciliations, and cost analysis with the goal of accelerating the close timeline
• Maintain inventory integrity through reconciliations, audits, and manual inventory processing as needed
• Support sales & use tax compliance across 7-8 states, including registrations, filings, and annual reporting (Avalara experience a plus)

All qualified applicants will receive consideration for employment without regard to race, color, national origin, age, ancestry, religion, sex, sexual orientation, gender identity, gender expression, marital status, disability, medical condition, genetic information, pregnancy, or military or veteran status. We consider all qualified applicants, including those with criminal histories, in a manner consistent with state and local laws, including the California Fair Chance Act, City of Los Angeles' Fair Chance Initiative for Hiring Ordinance, and Los Angeles County Fair Chance Ordinance.