Billing Manager

Own the invoicing engine of a hyper-growth energy-tech company. Your work directly protects our cash flow and keeps our growth engine running. You'll build order out of complexity, jump into individual invoices when it matters, and design the process that makes those individual jumps unnecessary.

What you'll do

• Own daily invoicing processes to trawa customers: quality, completeness, timing
• Reduce and eliminate ticket backlog through prioritization, root-cause analysis, and systematic execution
• Ensure complex billing logic (PPA, spot, futures, EEG direct marketing, grid fees, taxes) is correctly reflected in every invoice
• Own the invoicing KPIs: on-time rate, error rate, ticket aging, time-to-invoice
• Design and roll out a scalable invoicing architecture from manual setup to standardized and automated solution
• Communicate directly with customers on invoicing questions in German and English
• Partner with Sales, Customer Success, and Tech/Data teams on data quality and upstream contract integrity
• Ensure invoicing data flows cleanly into accounting and contribute to month-end close

What you'll need

• 3+ years in Billing, Order-to-Cash, Finance Operations, or similar operational Finance roles
• Scale-up experience at a fast-growing company, working without clean ERP and with ambiguous processes
• B2B billing experience with complex pricing models (individual contracts, volume-based logic, or formula-driven pricing)
• Proven high-output track record with personally delivered results on critical processes
• Systems thinker with detail obsession who sees patterns behind ticket or invoice corrections
• Excel/Sheets power user who builds and documents complex models
• Strong stakeholder management and ownership mindset
• Business fluent in English and German (written); speaking is a big plus

Nice to have

• Energy or utility experience
• Hands-on experience with a Billing Tool rollout or ERP implementation
• SQL, Python basics, or hands-on experience with AI tools (Claude, Langdock, n8n)

What they offer

• Real ownership from day one building the invoicing function that unlocks trawa's growth
• Direct collaboration with finance leadership and complex stakeholder set-up
• 30 vacation days, competitive compensation, VSOPs (share package)
• Flexible working, L&D budget, meal vouchers, Urban Sports membership