Accounts Receivable Associate
External
Proton · SkopjePrepare for this interview
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About the role
We are looking for an Accounts Receivable Associate to run our end-to-end invoicing process for our B2B business. This role is suited for someone who is highly organized and enjoys bringing consistency and structure to how they operate. This is a hands-on role with room to shape how billing operates as the business scales.
Responsibilities
- Prepare, review, and issue customer invoices for SaaS subscriptions, renewals, one-time fees, service charges, and MSP-related billing items.
- Create invoices using contracts, order forms, pricing agreements, sales notes, usage records, and internal billing instructions.
- Check customer billing details, including invoice addresses, VAT/tax information, payment terms, purchase order requirements, pricing, billing cycles, and discounts.
- Track invoices from request through creation, approval, dispatch, correction, and follow-up.
- Coordinate with Sales, Finance, Customer Success, and Operations to confirm billing details and resolve missing or unclear information.
- Respond to customer billing questions and investigate invoice discrepancies, missing purchase orders, disputed charges, or incorrect billing details.
- Maintain billing trackers and reports showing invoice status, pending actions, billing exceptions, and overdue items.
- Follow up on outstanding invoices via email and phone, and escalate overdue accounts to Finance or leadership in line with collections policy.
- Process and record incoming payments and reconcile against open invoices.
- Support month-end billing checks and reconciliation between sales records, platform usage, invoices issued, and finance records.
- Identify billing gaps, duplicate billing risks, incorrect charges, or missed revenue opportunities.
Requirements
- 2-5 years of experience in billing, invoicing, accounts receivable, finance operations, revenue operations, or administrative finance support.
- Strong with numbers and comfortable working across high volumes of data accurately.
- Able to read and work from contracts, order forms, pricing tables, and billing instructions.
- Comfortable following up persistently but professionally on outstanding invoices and overdue accounts.
- Strong written and verbal communication skills; English fluency is a must.
Benefits
Additional Information
About Proton Join Proton and build a better internet where privacy is the default Proton was founded in 2014 by scientists from CERN on a simple truth: privacy is a fundamental human right . Since then, we've built the world's largest encrypted email service (Proton Mail) and expanded into Proton VPN, Proton Drive, Proton Pass, and Proton Calendar-tools used by millions globally to protect their freedom, fight censorship, and keep their data safe. In some situations, Proton has literally helped save lives! We are profitable, independent (no VC control), and selectively hire from the top ~1% of applicants. Our 700+ team members across 50+ countries come from leading organizations and elite academic backgrounds. We move fast, keep hierarchy light, and prioritize impact over optics. If you want to do meaningful work with exceptionally high-caliber people, this is it. Join us and do work you can truly be proud of. Check our open-source projects here !
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