AT&T Billing & Operations Manager

About the role

NCR Atleos, part of NCR, is looking for a proven people leader with strong billing operations experience to manage a dedicated customer billing team within its Telecom & Technology (T&T) organization. The role combines team development and accountability with accurate, timely invoicing, customer partnership and end-to-end process improvement across Sales, Services, Finance and other functions. The position is based in Belgrade on a hybrid basis.

Key responsibilities

• Lead, coach and develop the billing team, set priorities and performance expectations, balance workloads and build a culture of accountability and honest communication.
• Own day-to-day billing performance, including manual and automated invoicing, unbilled-service tracking, billing readiness and resolution of customer issues.
• Build reliable controls linking contracts, service and equipment records, equipment changes, billing requests, purchase orders, invoices and outstanding unbilled activity, so material balances are traceable.
• Work with AT&T and internal teams to resolve funded-PO gaps, PO replacements and uplifts, approvals, master-data issues and other delays, addressing root causes rather than repeated manual exceptions.
• Lead resolution of billing disputes, aged unbilled items and historical backbilling questions, and provide accurate records for accrual support, receivables and rebate activity with Finance, Collections and commercial owners.
• Serve as the operational management contact for AT&T and escalation point for complex billing matters, coordinating across Sales, Services, Finance, Collections and customers.
• Establish an operating cadence with measures for invoice timeliness, billing accuracy, unbilled balances, PO readiness, open disputes and action closure, and escalate risks early with a recommended solution.
• Drive operational change by questioning inherited handoffs, simplifying complexity and implementing repeatable processes and controls.

Required profile

• 2+ years of direct people-management experience, with success coaching employees, managing performance and leading teams through change.
• 5+ years of relevant experience in billing operations, order-to-cash, commercial operations or customer operations in a B2B services environment.
• Demonstrated hands-on knowledge of complex billing processes, including recurring service invoicing, purchase-order dependencies, unbilled activity and customer billing issues.
• Bachelor's degree in business, finance, accounting, operations or a related field, or equivalent professional experience; professional fluency in English is required.

Preferred qualifications

• Experience in telecommunications, managed services, IT infrastructure, hardware maintenance or other complex contract-based service environments.
• Experience with Quickbase, Salesforce, ERP/billing platforms or similar workflow and data-management tools, including reconciliation across sources.
• Experience leading operational transformation and leading customer-facing operational teams in a global, matrixed organization.

What we offer

• Private health insurance and life, accident and disability insurance.
• Wellbeing resources and a baby bonus.
• Employee referral bonus program.
• Internal career pathing and advancement opportunities.
• Partner discounts for employees.