Job Description The Expert Customer Billing & Invoice Operations Specialist is responsible for the correct, rule-compliant and efficient execution of financial, commercial and billing processes within the cloud business. As a central interface between customers and internal areas such as Sales, Finance, Operations, Delivery, Partner Management and Customer Management, the position supports the entire order-to-cash (O2C) lifecycle, ensures the quality and consistency of invoices, supports commercial tendering and offer processes and ensures compliance with standardized business processes. The position combines sound financial knowledge with comprehensive know-how in cloud business, operational governance and distinctive stakeholder management expertise. In addition, the role acts as a Subject Matter Expert (SME) for TSI governance frameworks, financial steering, delivery models, and commercial processes.

Order-to-Cash (O2C) — Financial & Billing Management

- Management and coordination of order-to-cash activities for cloud products and services.
- Ensuring correct and timely invoicing in accordance with contractual agreements and business policies.
- Support and coordination of turnover-related processes in close cooperation with Finance, Sales, Service Delivery and Partner Management.
- Identification and clarification of billing-related errors, deviations and process gaps.
- Ensuring that order-to-cash processes are aligned with TSI governance, financial steering and operational standards.

Financial Management & Billing (FMB) — Invoice Handling





- Processing and managing invoices within the Financial Management & Billing (FMB) environment.
- Ensuring that invoices are prepared, reviewed and submitted correctly, completely and on time.
- Coordination of invoice corrections and technical clarifications with relevant stakeholders.
- Ensuring transparency and traceability of billing transactions.
- Assistance with financial reporting and commercial transparency requirements.

Invoice Consistency & Quality Assurance

- Carrying out detailed checks to ensure the quality and consistency of invoices.
- Checking the consistency between contracts, orders, consumption data, WBS structures and billing results.
- Identification of discrepancies and initiation and follow-up of appropriate corrective measures before invoicing.
- Helping you comply with internal controls, audit requirements, and governance standards.
- Ensuring high billing quality across the entire revenue lifecycle.

Onboarding Support

- Support in onboarding new customers, partners and internal stakeholders in billing and operational processes.
- Advice and support on billing processes, standards, governance requirements and system usage.
- Implementation and coordination of knowledge transfers and ensuring operational readiness.




- Helping stakeholders understand financial and operational process dependencies.

Commercial Bid Consulting

- Supporting sales and bid teams with commercial and financial know-how during the preparation of offers.
- Advice on pricing structures, billing models, partner-related commercial issues and operational feasibility.
- Review of commercial assumptions with regard to their compliance with standard processes and existing billing capacities.
- Participation in the preparation of customer offers and contracts.
- Advice on the requirements of AGP, Delivery Model Compliance, PSP Setup, TSI Offering Elements and Financial Steering Logic.
- Assistance with financial and commercial valuations throughout the bid and approval life cycle.

Governance, Financial Steering & Process Excellence

- Performing the role of process owner and advocate of standardized operational and financial processes.
- Act as a Subject Matter Expert for TSI Governance, Financial Steering, and Commercial Process Frameworks.
- Ensuring compliance with established governance frameworks, guidelines, and best practices.
- Initiating and implementing continuous process improvements.
- Promoting process harmonization across international business units and stakeholders.
- Support for audit readiness, operational excellence and quality management.
- Ensuring commercial and operational alignment with the TSI Offering Elements and the TSI Delivery Model.
- Assistance with performance transparency, profitability management and revenue assurance.

📌 Billing Operations Expert (m/f/d) T Cloud Public – German-Speaking (Granada)
🏢 T-Systems
📍 Granada