Seelye Stoffregen
Chicago
Summary
Results-oriented professional with a strong track record of achieving goals and driving success in various roles. Demonstrated ability to deliver high-quality outcomes through dedication and motivation. Expertise in leveraging skills to enhance team performance and meet organizational objectives.
Overview
6
6
years of professional experience
Work History
Collections Specialist
LaSalle Network
Chicago
02.2025 - Current
- Managed full-cycle accounts receivable, including invoicing and payment application.
- Resolved client payment discrepancies while maintaining strong professional relationships.
- Oversaw vendor management, ensuring compliance and timely invoice processing.
- Utilized NetSuite for A/R reporting, account reconciliation, and billing oversight.
- Processed payments through Bill.com and Ariba; tracked corporate spend via Ramp.
- Maintained operational and client data accuracy in Bullhorn.
- Monitored aging reports and Days Sales Outstanding to enhance cash flow management.
- Supported month-end closing processes and ensured audit-ready records.
Collections Specialist
Atlas Technical Consultants
Austin
03.2024 - 01.2025
- Managed end-to-end collections for high-volume portfolios across California and Chicago markets
- Conducted consistent client outreach to drive timely payments and resolve invoice discrepancies
- Analyzed aging reports and prioritized at-risk accounts to improve cash flow
- Collaborated with billing, sales, and operations teams to streamline collections workflows
- Ensured compliance with credit policies and multi-state regulations
Administrative Assistant to CFO, CAO, Accounting Manager & Head of Collections
Atlas Technical Consultants
Austin
08.2023 - 03.2024
- Supported C-suite executives with complex calendar management and daily operations
- Prepared A/R, A/P, and daily cash reports for leadership review
- Coordinated executive board meetings, materials, and follow-up documentation
- Managed travel arrangements, expense reporting, and approvals
- Utilized SharePoint and advanced Excel formulas for financial analysis
Hospital Administration Intern
Putnam County Hospital & Health Department
Greencastle
01.2020 - 05.2023
- Co-authored 2022 Community Health Assessment in collaboration with CEO and public health leaders.
- Coordinated stakeholders for public health programs while maintaining confidentiality and managing testing schedules.
- Conducted comprehensive research and data analysis to support strategic planning and inform decision-making.
- Developed presentations for county-wide policy discussions and initiatives, enhancing communication effectiveness.
Education
Bachelor of Arts / Science -
DePauw University
Greencastle, IN05.2023
Global Health & Development Policy Program -
School for International Training
Nyon, SwitzerlandSkills
- NetSuite (Oracle) and Billcom
- Accounts receivable and payable
- Financial reporting and analysis
- Credit reporting and checks
- Vendor management
- Advanced Excel skills
- Microsoft Word, PowerPoint, and Outlook
- Collaboration in Teams and SharePoint
- Billing expertise
Leadership Experience
- Accounts Receivable Lead - Oversaw accounting associate and delegated daily tasks
- Captain, DePauw University Track & Field (2022-2023)
- Vice President, Alpha Chapter of Kappa Alpha Theta
- Student-Athlete Advisory Committee (SAAC)
- Leadership Council, Track & Field
Accomplishments
Amy Hasbrook Female Student-Athlete of the Year
Timeline
Collections Specialist
LaSalle Network
02.2025 - Current
Collections Specialist
Atlas Technical Consultants
03.2024 - 01.2025
Administrative Assistant to CFO, CAO, Accounting Manager & Head of Collections
Atlas Technical Consultants
08.2023 - 03.2024
Hospital Administration Intern
Putnam County Hospital & Health Department
01.2020 - 05.2023
Bachelor of Arts / Science -
DePauw University
Global Health & Development Policy Program -
School for International Training