Billing Manager

Billing Manager

Permanent employee · Full-time · Berlin (HQ)

Our Mission For You

Own the invoicing engine of a hyper-growth energy-tech company. Your work directly protects our cash flow and keeps our growth engine running. Invoicing directly affects our cash flow in the millions. This role is a lever, not a cost center.

trawa enables mid-sized companies to access green, intelligent energy. We're a hyper-growth company with strong team growth, rising invoice volumes, and increasing complexity per invoice. Individual contracts, PPAs, spot, futures, EEG direct marketing, grid fees, taxes: every customer segment is a small puzzle. Today, that puzzle is solved mostly manually, and it needs to move to the next level.

You'll build order out of that complexity. You'll jump into individual invoices when it matters. At the same time, you'll design the process that makes those individual jumps unnecessary. You'll be part of our Billing Tool Rollout and help prepare invoicing for our ERP migration. This is a hands-on role for someone who wants to own the operation, not just manage it.

What You'll Own

Own Invoicing End to End

Own daily invoicing processes to trawa customers: quality, completeness, timing

Reduce and eliminate our current 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

Build Scalable Processes

Be part of designing and rolling out a scalable invoicing architecture, from today's manual setup to a standardized and automated solution

Automate recurring process steps

Document everything: reproducible, hand-off-ready, audit-ready

Stakeholder & Customer Communication

Direct customer communication on invoicing questions, in writing (German and English)

Partner closely with Sales and Customer Success to secure upstream data quality (contracts, prices, delivery points)

Partner closely with our Tech/Data team, where consumption data, time series, and energy accruals are your input

Establish escalation paths and priority logic with Sales and CS, so edge cases don't block the standard process

Data Quality & Handover to Accounting

Ensure invoicing data flows cleanly into accounting, as the interface to our accounting team

Contribute to month-end close: clean invoicing cut-off, documented open items, accruals-relevant data ready on time

Audit-readiness from an invoicing perspective: process documentation, invoice-level traceability, controls

Who You Are

Must-haves

3+ years in Billing, Order-to-Cash, Finance Operations, or similar operational Finance roles

Scale-up experience, with at least one station at a fast-growing company. You've worked without a clean ERP, with ambiguous processes, in a team being built as it runs

B2B billing with complex pricing models, not SaaS flat-rate. You've handled individual contracts, volume-based logic, or formula-driven pricing

Proven high-output track record. You've personally delivered and you can point to a moment where you built or saved a critical process

Systems thinker with a detail obsession. You see the pattern behind ticket or invoice corrections

Excel/ Sheets power user. You build models others can't unpack, and you document them so they can

Strong stakeholder management

Ownership mindset. You take things on without asking whether it's "in your role"

Business fluent in English and German (written); speaking is a big plus

Nice-to-haves

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)

Your First 90 Days

Month 1: Land & Understand

Understand our business model, the German energy market basics, and our billing complexity. Understand what drives our corrections rate. Build relationships with the most important stakeholders.

Month 2: Stabilize

Keep invoicing running stably while spotting optimization opportunities. Define clear ticket priorities and escalation paths with Sales and CS. Ship first quick wins in automation and process design. Define and start tracking your KPIs: error rate, ticket aging.

Month 3: Build

Deliver a target process architecture for improvements to our current invoicing processes. Actively and proactively reduce time-to-invoice and corrections rates. Present your automation and process roadmap to the finance leadership team.

Why trawa?

Real ownership from day one. You build the invoicing function that unlocks trawa's growth

Direct collaboration in a complex stakeholder set-up, with direct contact to our finance leadership team

A uniquely complex problem space at the intersection of energy, tech, and finance

An AI-first Finance team that embraces new tools and ways of working

Accelerated career growth in a scaling environment with massive scope

Flexible working, 30 vacation days, L&D budget, competitive compensation, VSOPs (share package), meal vouchers, Urban Sports membership, and a vibrant office culture

Diversity at trawa

Everyone is welcome here. We are committed to building an inclusive workplace that values diversity, and we encourage applications from people of all backgrounds, regardless of origin, gender, age, sexual orientation, ethnicity, physical or neurodiverse background.

Don't worry if you don't tick every box. We value ownership, learning speed, and aren't hunger over a perfect CV.

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