AT&T Billing & Operations Manager (Telecom)

Location: Belgrade, Serbia — hybrid, based at the K2 Campus office

Company

hirify.global provides financial access and self-service technology solutions for financial institutions and retailers through a global organization of approximately 20,000 employees.

What you will do

• Lead, coach, and develop the customer billing team; set priorities, manage performance, balance workloads, and lead the team through change.
• Own timely and accurate manual and automated invoicing, invoice validation, billing readiness, and monitoring of unbilled services.
• Build controls linking contracts, service and equipment records, purchase orders, billing requests, invoices, and outstanding unbilled activity.
• Resolve purchase-order gaps, replacements, uplifts, approvals, master-data issues, billing disputes, aged unbilled items, and historical backbilling questions with AT&T and internal stakeholders.
• Act as the operational management contact for AT&T and internal escalation point, coordinating with Sales, Services/CMO, Finance, Collections, and customer stakeholders.
• Establish operating metrics and implement repeatable processes to improve invoice timeliness, billing accuracy, unbilled-balance control, dispute resolution, and action closure.

Requirements

• At least 2 years of direct people-management experience, including coaching employees, managing performance, setting expectations, and leading teams through change.
• At least 5 years of relevant experience in billing operations, order-to-cash, commercial operations, or customer operations in a B2B services environment.
• Hands-on knowledge of complex billing processes, including recurring service invoicing, purchase-order dependencies, unbilled activity, and customer billing issues.
• Strong analytical and operational judgment, with experience developing teams, solving cross-functional problems, and implementing controls and process improvements.
• Bachelor’s degree in business, finance, accounting, operations, or a related field, or equivalent relevant professional experience.
• Professional fluency in English is required.
• Employment is conditional upon passing the screening criteria applicable to the job.

Nice to have

• Experience in telecommunications, managed services, IT infrastructure, hardware maintenance, or other complex contract-based service environments.
• Experience with Quickbase, Salesforce, ERP or billing platforms, or similar workflow and data-management tools, including reconciliation across multiple sources.
• Experience leading operational transformation that improved billing accuracy, invoice timeliness, data integrity, or control of aged unbilled activity.
• Experience leading customer-facing operational teams in a global, matrixed organization and communicating with senior commercial and operational stakeholders.

Culture & Benefits

• Hybrid work from the Belgrade K2 Campus office.
• Private health insurance and life, accident, and disability insurance.
• Wellbeing resources, a baby bonus, and employee discounts with hirify.global partners.
• Employee referral bonus program and opportunities for internal career development and advancement.

Hiring process

• Applications are subject to the applicable employment screening criteria.
• hirify.global accepts recruitment-agency resumes only from agencies on its preferred supplier list; unsolicited agency resumes are not accepted.