Accounts Payable Specialist (Puerto Rico Based)

Job Summary: Accounts Payable Specialist

Candidates must be located in Puerto Rico.

The Accounts Payable Specialist owns the day-to-day flow of vendor invoices across Mistr Medical Group. The role is the front door of the accounting team for vendors and internal staff: managing the shared accounting email inboxes, routing invoices through Bill.com and QuickBooks Online, and ensuring vendors are paid accurately and on time.Because each entity within the group is managed and reported on separately, accurate coding to the correct entity, account, and class on every invoice is a core skill of the role — not an afterthought. Success looks like clean inboxes, well-categorized invoices, smooth approval workflows, and vendors who feel heard. The position blends customer-service responsiveness with accounting accuracy and is essential to the financial health of the organization and the strength of our vendor partnerships. Supervisory Responsibilities:

· None.

Key Duties and Responsibilities:

Shared Inbox & Vendor Communication

Responsiveness in the shared accounting inboxes is the highest priority of this role.

• Inbox monitoring — Monitor and triage the shared accounting email inboxes throughout each business day so no inquiry sits unanswered.
• Vendor responsiveness — Respond promptly, accurately, and professionally to vendor inquiries about invoices, payment status, statements, and remittance details.
• Internal support — Field requests from team members across the organization who need help with invoice status, vendor information, or payment questions.
• Inbox organization — Maintain folders, labels, and a triage system so open items are visible and nothing falls through the cracks.
• Escalation — Surface ambiguous, large-dollar, or contested items to the Accounting Manager early rather than late.

Invoice Processing in Bill.com & QuickBooks Online

• Invoice intake — Capture incoming invoices into Bill.com from email forwarding, direct uploads, and vendor connections.
• Coding — Code each invoice to the correct entity, GL account, class, and (where applicable) project, applying consistent treatment across recurring vendors.
• Approval workflow — Route invoices through the appropriate Bill.com approval workflow and follow up with approvers to keep payments on schedule.
• Payment scheduling — Schedule payments in Bill.com once approvals are complete, using the correct funding account for each entity.
• Sync verification — Confirm Bill.com to QuickBooks Online syncs post cleanly; investigate and resolve any sync errors that arise.
• Vendor records — Maintain accurate vendor information in Bill.com and QuickBooks, including W-9s, ACH details, remittance addresses, and 1099 status.

Reconciliation, Records & Month-End Support

• Vendor statement reconciliation — Reconcile vendor statements against Bill.com to catch missing invoices, duplicates, and aging items.
• Close support — Support month-end close by ensuring all invoices for the period are entered and coded before the AP cutoff.
• Reconciliation assistance — Assist with credit card and bank account reconciliations as assigned by the Accounting Manager.
• Documentation — Keep digital invoice files and supporting documentation organized and audit-ready.
• Audit & 1099 support — Help research and respond to questions raised during close, audits, or annual 1099 filings.

Process Improvement & Team Support

• Continuous improvement — Identify recurring inbox themes, coding errors, or workflow bottlenecks and surface them for improvement.
• Coverage — Cross-train with other accountants to provide coverage during PTO and absences.
• Confidentiality — Maintain strict confidentiality of vendor, payment, and financial information handled in the course of the role.

Required Skills and Qualifications:

• High school diploma or equivalent.
• Strong written communication skills — a meaningful portion of the role is composing clear, courteous email responses to vendors and internal stakeholders.
• Customer-service mindset; comfortable serving as a friendly, responsive point of contact for vendors.
• Detail-oriented with strong organizational and time-management skills.
• Hands-on experience with Bill.com and QuickBooks Online, or demonstrated ability to learn new accounting platforms quickly.
• General familiarity with basic accounting concepts (debits and credits, AP aging, the difference between an invoice and a payment).
• Ability to handle confidential information with discretion.

Preferred Skills and Qualifications:

• Associate’s degree or higher in accounting, business, or a related field.
• Prior experience as an Accounts Payable Specialist or in an AP-heavy bookkeeping role.
• Experience working across multiple legal entities or in a multi-location organization.
• Experience with healthcare, pharmacy, or telehealth vendor types.
• Familiarity with accrual-basis accounting and month-end close concepts.
• Familiarity with annual 1099 reporting.

Physical Requirements:

· Prolonged periods of sitting at a desk and working on a computer.

· Ability to lift up to 15 pounds intermittently.

· Job Type:

- Remote Employee

- Full Time - Salary (Non-Exempt)

- Day Shift (Monday - Friday)

- Work Hours will be determined at the time of hire

Benefits:

· Heath

· Dental

· Vision

· Life Insurance

· Paid Holidays

· Paid Time Off (PTO)

MISTR, LLC is an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran, or disability status.

Pay: $40,000.00 - $45,000.00 per year

Benefits:

• 401(k)
• Dental insurance
• Health insurance
• Paid time off
• Vision insurance

Experience:

• Accounts payable: 1 year (Preferred)

Location:

• Puerto Rico (Required)

Work Location: Remote