Celonis is the global leader in Process Intelligence and the pioneer of Process Mining technology. As one of the world’s fastest-growing enterprise SaaS companies, we are changemakers pushing the boundaries of what’s possible. We invest heavily in advanced AI capabilities—specifically our Process Intelligence Graph—to turn data insights into immediate business action.

We believe there is a massive opportunity to unlock global productivity and sustainability by placing intelligence at the core of every business process. Join our mission to make processes work for people, companies, and the planet. The Team: From a finance perspective, the Billing team is critical to Celonis' growth.

We act as business partners, ensuring accurate and timely invoicing of global deals to meet deadlines and optimize cash flow. The Billing Specialist will report to the Billing Team Lead.

Responsibilities

will include managing the team's mailbox, processing purchase orders, handling customer onboarding requests, uploading portal invoices, invoicing for both professional services and SaaS. You will collaborate with various departments such as Collection, Finance Operations, and Deal Desk to achieve shared objectives. The role requires good independent judgment to evaluate and resolve unique situations effectively.

The work you’ll do: Onboard clients into the billing system. Upload invoices to portals. Support daily team communications as requests for action are received in the team inbox.

Process financial documents, invoices, and purchase orders. Responsible for accurate and timely invoicing and related administrative tasks. Generate invoices for both professional services and SaaS offerings.

Actively collaborate with Collection, Finance Operations, and Deal Desk teams to ensure smooth processes and achieve common goals.

Qualifications

you need: A BA/BS degree, preferably in Finance, Economics, and/or Linguistic. First experience in a billing, AR or similar role within finance. Business fluency in English as a Must-have Strong communications skills to deal with different internal stakeholders and in multinational teams.

Very comfortable with numbers. Target driven, quick leaner and team player. An independent and entrepreneurial way of working.

Located in Madrid to work one-site from the Celonis Madrid office. What Celonis can offer you: Pioneer Innovation: Work with the global leader in Process Mining and the Process Intelligence Graph to shape the future of AI-driven business operations. Ownership from Day 1: Every full-time "Celonaut" is an owner, receiving Restricted Stock Units (RSUs) and merit-based refresh grants.

Unrivaled Family Support: Benefit from our inclusive parental leave policy—24 weeks of fully paid leave for primary carers and 12 weeks for supporting carers, available from your first day of employment. Work-Life Integration: Enjoy Unlimited PTO (in applicable regions) and generous PTO globally, as well as a flexible hybrid work model that balances remote focus with vibrant office collaboration. Continuous Growth: Elevate your skills through our 70-20-10 learning framework, mentorship programs, and access to a dedicated learning platform.

Holistic Well-being: Prioritize your health with subsidized Wellhub memberships, mental health counseling, and dedicated "Wellness Weeks" that prioritize work/life balance. Drive Sustainability: Participate in annual Impact Days, where you receive paid time off to volunteer for community and environmental causes with your local office, or virtually. Global Inclusion Belonging: Find community through our Inclusion Think Tank and participate in our annual Inclusion Days, ensuring every voice is heard and valued.

Value-Driven Impact: Join a mission-led organization where our core values—Live for Customer Value, The Best Team Wins, We Own It, and Earth Is Our Future—drive every decision.