Billing Specialist (Fixed-term contract)

Location: Czech Republic. Work from our Prague or Brno office, or remotely.

Employment type: Full-time employment contract (HPP), fixed term

Contract duration: For the duration of a team member’s maternity and parental leave, expected 12 months, with the possibility of extension

Reports to: VP, Finance & Accounting

We are looking for a detail-oriented Billing Support Specialist to join our Czech-based billing team on a fixed-term basis, covering for a colleague during their maternity and parental leave. You will support day-to-day billing operations for our global customer base, with a focus on accurate monthly usage-based invoicing, billing corrections, and timely responses to customer billing questions.

This is a hands-on, execution-focused role working within established processes and controls. It is a good fit for someone who enjoys working with numbers and systems, takes pride in getting the details right, and wants practical experience in billing for a fast-growing, US-headquartered SaaS company.

What You’ll Do:

Customer Onboarding

• Complete customer supplier onboarding requirements, such as vendor registration forms and procurement portal setup
• Obtain purchase orders and other customer billing requirements, and share them with Revenue Accounting ahead of invoicing

Billing Inquiries

• Respond promptly and professionally to customer billing inquiries by email and through the case management system (Salesforce)
• Investigate billing questions and disputes, coordinating with Revenue Accounting on any required credits or rebills
• Submit issued invoices to customer procurement portals where required

Customer Account Reconciliations

• Prepare and reconcile customer account statements, and resolve differences with customers
• Research unapplied payments, short payments, and remittance discrepancies

Collections

• Follow up with customers on outstanding and overdue invoices according to the collections process
• Maintain accurate collection notes and track payment commitments
• Review AR aging regularly and escalate at-risk accounts to management

Month-End, Controls & Coordination

• Support month-end activities such as AR aging review and collections reporting
• Perform assigned controls and retain supporting evidence in line with documented procedures; provide support for audits as needed
• Work with Sales, Deal Desk, and Revenue Accounting to resolve customer account issues, escalating contract or policy questions to the appropriate owner
• Keep process documentation current so work transitions smoothly at the end of the contract term

Required qualifications

• 1–3 years of experience in billing, invoicing, accounts receivable, or a similar finance operations role
• Fluent English, written and spoken; you will work daily with colleagues in the US and Czech, and customers primarily in the US, UK, and Europe
• Strong working knowledge of Excel (lookups, pivot tables, basic data validation)
• Keen attention to detail and a methodical approach to checking your own work
• Strong organizational and time-management skills, with the ability to prioritize and meet month-end deadlines
• Clear, courteous communication with customers and cross-functional teams
• Self-directed and accountable in a remote or hybrid work environment

Nice to haves

• Experience with NetSuite or another ERP or billing system
• Familiarity with subscription or usage-based billing models
• Experience in a SaaS or technology company

Based in Mountain View, California, DNAnexus is experiencing rapid growth and is searching for the best talent to join our team. We recently completed a $200 million financing round to advance our growth globally to further serve leading healthcare and life science organizations. Key investors include Google Ventures, Perceptive Advisors, Northpond Ventures, TPG Biotech, and Foresite Capital. 

DNAnexus will provide the necessary support to enable the ideal candidate to work remotely within the Czech Republic.