Key Responsibilities B2B Collections & Portfolio Management Manage a large portfolio of commercial (B2B) customer accounts, proactively following up on past-due balances. Develop and execute collection strategies to reduce aging balances and improve cash flow. Maintain consistent communication with customers regarding outstanding invoices, payment terms, and account status. Partner with Sales, Account Management, Implementation, Legal teams to resolve payment delays and billing disputes. Work closely with Revenue and billing teams to understand full order-to-cash cycle to be able to identify and help resolve issues quickly. Identify root causes of delinquency and escalate issues when necessary. Able to read and understand customer contracts to determine if invoices are accurate Cash Application & Account Reconciliation Apply daily cash receipts accurately and timely within NetSuite. Reconcile customer accounts and investigate discrepancies to ensure payments are correctly applied. Analyze and resolve unapplied cash, short payments, deductions, and billing discrepancies. Maintain accurate AR aging and account balances. Reporting & Financial Close Review and analyze AR aging reports to prioritize collection efforts. Provide updates on high-risk or escalated accounts. Support month-end, quarter-end, and year-end close activities related to AR. Assist with internal and external audit requests. Process Improvement & Operational Excellence Identify opportunities to improve AR processes, reporting, and collections workflows. Proactively recommend solutions to reduce past-due balances and improve DSO. Assist with documenting and standardizing AR procedures and best practices. Support initiatives to enhance automation, reporting, and efficiency within NetSuite. Required 3–5 years of Accounts Receivable experience, including B2B collections. Experience managing a large portfolio of customer accounts in a high-volume environment. Experience working with billing teams and revenue-related processes within the order-to-cash cycle. Familiarity with revenue recognition concepts and contract-based billing structures. Experience supporting invoice review, dispute resolution, or billing validation. Hands-on experience with NetSuite ERP or similar accounting systems. Proven ability to work independently and take ownership of account portfolios. Strong analytical and problem-solving skills with the ability to identify root causes and drive resolution. Excellent communication skills with experience partnering with Sales, Billing, and Finance teams. Preferred German language proficiency (written and/or spoken). Experience working in international or multi-entity environments. Degree in Accounting, Finance, Business Administration, or related field.