Billing & Accounts Receivable Specialist ( Part time

About the Role

We are seeking a Senior Billing Analyst (Part-Time) with a demonstrated history of working in the accounting industry and hands-on experience managing Clients in the US and other international regions.

This is not a passive reporting role. You will own the end-to-end billing lifecycle—from invoicing and accounts receivable to collections, reporting, and client coordination. You’ll collaborate closely with Sales, Customer Success, and Leadership to ensure revenue accuracy, timely collections, and seamless client communication.

If you’re analytical, detail-oriented, customer-focused, and comfortable working independently in a fast-paced SaaS environment, this role is for you.

As a Senior Billing Analyst at Writesonic, you will:

• Take full ownership of Accounts Receivable (AR) and billing operations for US-based clients.
• Ensure accurate and timely invoicing aligned with contracts and subscription models.
• Drive collections strategy and maintain healthy DSO metrics.
• Work cross-functionally with Sales and Customer Success to resolve billing disputes.
• Generate detailed financial reports and revenue analysis for leadership.
• Improve billing workflows, automation processes, and CRM integrations.
• Maintain compliance with US accounting and invoicing standards.
• Build strong client relationships through proactive communication and issue resolution.

This role offers the opportunity to influence revenue operations at a rapidly scaling AI company while working flexible hours.

• Work at the intersection of finance, SaaS, and generative AI
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• Direct exposure to US enterprise and mid-market clients.
• High ownership and autonomy in billing operations.
• Opportunity to streamline and optimize billing systems in a scaling startup.
• Influence process improvements in a high-growth environment.

• Managing billing complexities across subscriptions, renewals, and custom contracts.
• Coordinating across time zones with US clients.
• Maintaining accuracy and speed in a rapidly evolving product environment.
• Proactively identifying revenue leakages and process inefficiencies.

• Have 5+ years of experience in the accounting or finance domain.
• Have hands-on experience managing US clients and US billing standards
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• Are highly skilled in:
• Accounts Receivable (AR)
• Billing & Invoicing
• Collections Management
• Financial Reporting & Analysis
• Client Services
• CRM systems (Hub Spot, Salesforce, or similar)
• Have experience working in a SaaS or subscription-based business model
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• Understand revenue recognition principles and subscription billing structures.
• Possess strong analytical and reconciliation skills.
• Are detail-oriented, proactive, and hands-on.
• Have excellent written and verbal communication skills.
• Can work independently in a remote, fast-paced startup environment.
• Bachelor’s degree in Accounting, Finance, or a related field (CPA is a plus).