Mark Chopelas
Salem,NH
Summary
Staff accountant with hands-on experience in project billing, accounts receivable, bank and account reconciliation, and revenue recognition support. Uses QuickBooks Online, Excel, and strong follow-through to help maintain accurate records, support cash flow, and coordinate with project and finance teams.
Overview
1
1
Certification
7
7
years of professional experience
Work History
Staff Accountant
ioMosaic Corporation
Salem, NH
07.2025 - Current
- Managed T&M and fixed-price billing for client projects.
- Helped with collections and accounts receivable activities to support cash flow management.
- Worked with finance director to identify billable work and monitor collection efforts for accurate revenue recognition.
- Handled software billing and invoicing for clients.
- Processed vendor invoices, including electrical meter-read billing.
- Met weekly with project managers to review project progress and increase monthly billing opportunities.
- Supported business development and sales efforts by identifying client opportunities, conducting outreach, and coordinating with internal teams to grow existing client relationships.
- Helped register and establish new company entity in Canada.
- Made process improvements in company database to streamline workflows and improve client follow-up tracking.
Accounting Intern
ioMosaic Corporation
Salem, NH
05.2024 - 07.2025
- Provided support to the Senior Director of Finance utilizing QuickBooks, ioXpress, Excel, Tenant Cloud software for eight different companies.
- Processed vendor bills to ensure timely payments.
- Compiled employee expense reports, ensuring accurate financial records and timely reimbursement.
- Reconciled credit card charges and bank statements for financial accuracy.
- Generated and sent client invoices to facilitate timely payments.
- Managed collections for accounts receivable and payable, facilitating consistent cash flow and financial stability.
- Assisted in converting accounting systems from QuickBooks Desktop to QuickBooks Online.
Customer Service
SSM Investigations and Security
Salem, NH
01.2020 - 01.2021
- Assisted thousands of customers, prioritizing their safety during the pandemic.
- Collaborated with Apple to facilitate safe purchasing of products during the pandemic.
- Delivered customer service in a retail environment.
Education
Bachelor of Science - Business Management, Marketing & Sports Management
Rivier University
Nashua, NH05-2025
Skills
- Revenue recognition
- Accounts receivable
- Invoice processing
- Cash flow management
- Bank reconciliation
- Account reconciliation
- Expense tracking
- Financial reporting
- General ledger
- Project billing
- QuickBooks Online
- Microsoft Excel proficiency
- GAAP application
- Attention to detail
- Time Management
- Team collaboration
- Adaptability
- Finance
- Accounts receivable
Certification
- Corrective Action Request
- Work Smarter with Microsoft Excel
- Work Smarter with Microsoft Word
- Microsoft 365 Fundamentals
- Adult CPR/AED
- GDPR Training
- Fire Safety Training
- ISO 9001 QMS Overview
- RCA Training
Timeline
Staff Accountant
ioMosaic Corporation
07.2025 - Current
Accounting Intern
ioMosaic Corporation
05.2024 - 07.2025
Customer Service
SSM Investigations and Security
01.2020 - 01.2021
Bachelor of Science - Business Management, Marketing & Sports Management
Rivier University