Gellyn C.
Executive Assistant | Accounts & Billing | Operations Coordinator
🏆 5+ Years | Executive Assistant, Accounts & Billing Coordinator, Operations Coordinator I help busy executives and growing businesses stay organized, efficient, and operationally sharp — so they can focus on growth while I handle the details. With over 5 years of hands-on experience supporting CEOs, business owners, and remote teams across the United States, United Kingdom, and Australia, I specialize in executive support, accounts receivable, billing administration, project coordination, and business operations. 💼 What I've delivered for past clients: • Managed 60–100 daily AR/AP transactions, ensuring accurate invoicing, payment tracking, and up-to-date financial records. • Monitored outstanding balances, followed up on payments, and helped improve collection timelines and cash flow. • Provided direct executive support to CEOs, including calendar management, meeting coordination, correspondence, reporting, and task tracking. • Processed payroll, managed invoice collections, and supported financial reporting through QuickBooks and Xero. • Designed and implemented a Notion-based filing and document management system that improved organizational efficiency. • Maintained CRM systems and business records, ensuring accuracy, data integrity, and streamlined operations • Coordinated projects, tracked milestones, and supported cross-functional teams to ensure priorities stayed on schedule • Drafted policies, onboarding documents, business procedures, and operational documentation 📊 Operations & Administrative Expertise: • Executive & Administrative Support • Accounts Receivable & Billing Coordination • Invoicing, Payment Tracking & Follow-Up • Calendar & Email Management • CRM Administration • Project & Task Coordination • Process Improvement & Documentation • Reporting & Data Management • HIPAA-Compliant Administrative Support I bring accuracy, initiative, and strong attention to detail to every role. If you're looking for someone who can support your leadership team, strengthen your operations, manage billing processes, and keep projects moving forward, let's connect.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $856
Billed in all: $17,503$18k
$856 in the last 6 months
Earnings, last 30 days
Skill rankings: Top 29% in Human Resource Management
Ranked by MRR among everyone on Upwork with the skill.
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