Treasury - Sr. Associate

Apex Group Ltd (UK Branch); Reston (VA); On-site; USD 60,000 - 75,000; Full time

Job summary

Apex Group is seeking a Billing and AR specialist to manage end-to-end invoicing, apply payments, and support reconciliations within our Reston, VA operations.

Join a global financial services leader delivering cross-jurisdictional services with a focus on accuracy, compliance, and timely financial close. This role offers exposure to multi-client billing processes and collaboration with Finance Controllership teams.

Qualifications

• Experience handling billing cycles (daily/weekly/monthly) and invoice processing.
• Proficiency with cash application and reconciliations.
• Familiarity with ERP systems and audit trails.

Responsibilities

• Generate and process customer invoices accurately per terms and SLAs.
• Apply incoming payments to invoices; handle high-volume transactions.
• Perform daily/weekly AR and bank reconciliations and assist with month-end close.

Skills

Billing

Cash Application

AR Reconciliation

Data entry

Job description

The Apex Group was established in Bermuda in 2003 and is now one of the world’s largest fund administration and middle office solutions providers.

Our business is unique in its ability to reach globally, service locally and provide cross-jurisdictional services. With our clients at the heart of everything we do, our hard-working team has successfully delivered on an unprecedented growth and transformation journey, and we are now represented by over circa 13,000 employees across 112 offices worldwide.Your career with us should reflect your energy and passion.

That’s why, at Apex Group, we will do more than simply ‘empower’ you. We will work to supercharge your unique skills and experience.

Take the lead and we’ll give you the support you need to be at the top of your game. And we offer you the freedom to be a positive disrupter and turn big ideas into bold, industry-changing realities.

For our business, for clients, and for you

Job Description:

Billing Responsibilities

• Generate and process customer invoices accurately based on contractual terms, pricing agreements, and delivery confirmations
• Ensure timely billing cycles (daily/weekly/monthly) as per SLA
• Validate billing data (pricing, tax, discounts, quantities) before invoice release
• Handle billing exceptions, disputes, and corrections (credit/debit notes)
• Ensure compliance with company policies, tax regulations, and audit requirements
• Maintain proper documentation and audit trails for all billing transactions
• Coordinate with CSM/CRM, Operations, and Finance Controllership teams to resolve discrepancies
• Support with client account set up and data migration activities

Cash Application Responsibilities

• Apply incoming payments (checks, wire, ACH, remittances) to customer invoices accurately and promptly
• Process high-volume transactions with attention to detail
• Identify and resolve unapplied/unidentified cash
• Reconcile bank statements with ERP postings
• Investigate short payments, overpayments, and deductions
• Coordinate with Collections teams, business and customers for remittance details clarification
• Maintain clean AR ledgers and minimize aged unapplied cash

Reconciliation & Reporting

• Perform daily/weekly AR and bank reconciliations
• Track and report key metrics such as:
  • Cash application accuracy
  • Unapplied cash percentage
  • Billing turnaround time
• Support month-end close activities
• Assist with internal and external audits