Interim Finance Workstream Lead Billing & BSS

Project overview

For our client, a company in the telecommunications sector, we are looking for an experienced Interim Finance Process Lead to support a strategic transformation project in the area of new digital business models. The focus is on integrating an external Business Support Platform (BSS) into the existing system and process landscape.

Client Details

Our client is a company in the telecommunications sector.

Job Description

Profile

Offer

If you are interested in this position, we look forward to your application.

• Taking on a central interface function between Finance, Accounting, Controlling, Treasury, IT, and external platform providers
• Support with scoping, conception, and feasibility analyses for the introduction of new business and billing processes
• Analysis and definition of future end-to-end processes in the area of Billing, Revenue, and Customer-to-Cash
• Collection, consolidation, and documentation of business requirements from the Finance sector
• Translation of accounting requirements into technical and process specifications for internal and external stakeholders
• Ensuring correct balance sheet and bookkeeping representation of new business models and transactions
• Consulting on the definition of booking logic, financial processes, and reconciliation mechanisms
• Close collaboration with software providers and specialist departments during design, implementation, and testing phases
• Support with functional tests and validation of billing, booking, and accounting processes
• Identification of process risks and derivation of suitable improvement measures
• Several years of experience in finance transformation, accounting, or ERP-related projects
• Sound knowledge in Financial Accounting and a very good understanding of balance sheet and bookkeeping logic
• Experience at the interface between Finance, Business, and IT
• Ability to represent complex business requirements understandably to technical teams and external partners
• Experience in process analysis, requirements engineering, or business analysis
• Ideally, knowledge of Billing, Revenue, or Customer-to-Cash processes
• Experience in system introductions, integration, or transformation projects
• SAP knowledge is an advantage
• Analytical, structured, and detail-oriented way of working
• Fluent German and English (negotiation level)

Project details

• Start: 2026-11
• Remote: remote
• Location: Düsseldorf (40549), Deutschland, DE
• Languages: German, English