Billing Specialist

Sterlington, PLLC; Lisboa; Remote; EUR 37,000 - 74,000; Full time

Job summary

Sterlington PLLC is seeking a Billing Specialist to own invoicing and billing operations in a fast-paced, client-facing environment. This remote, full-time independent contractor role collaborates with partners, finance, and client teams to ensure invoices are accurate and timely.

You will maintain clean billing records, review time entries, resolve disputes, and support cash flow. Prior experience with ERP or legal billing tools and strong Excel skills are essential.

Qualifications

• 4–7 years of experience in billing, accounts receivable, or finance operations.
• Familiarity with AI-assisted billing tools on accounting/ERP platforms.
• Strong Excel skills and data handling abilities.

Responsibilities

• Prepare, review, and issue invoices accurately and on time.
• Coordinate with partners and stakeholders to validate billing details.
• Track billing schedules and adhere to deadlines.
• Review time entries, expenses, and billing data for accuracy and compliance.
• Resolve billing queries and disputes with internal teams and clients.
• Maintain clean billing records and documentation.
• Support month-end processes with complete billing data.
• Identify recurring billing issues and suggest process improvements.
• Collaborate with collections and AR to ensure smooth handoffs from invoicing to payment.

Skills

Billing experience

AI-assisted billing tools

Excel/Data analysis

Attention to detail

Communication

Time management

Tools

ERP systems

Excel

Legal billing tools

Job description

Location: 100 % remote

Contract: Full-time, Independent Contractor

Posting Jurisdictions: To support US Eastern Time working hours

Our Firm:

Sterlington PLLC is a full-service law firm focusing on complex corporate, litigation, executive compensation, and private wealth matters. As a firm, we focus on the economics as well as the legal aspects of our matters. Among other strengths, Sterlington is the ultimate law firm for founders, senior executives, and UHNWIs as well as their related businesses.

We’re looking for a Billing Specialist to take ownership of invoicing and billing operations in a fast-paced, client-facing environment. This role sits at the center of revenue operations, working closely with partners, finance, and client teams to ensure invoices are accurate, timely, and aligned with client expectations.

You’ll play a key role in keeping billing clean, reducing friction with clients, and supporting overall cash flow.

What You’ll Do:

• Prepare, review, and issue invoices accurately and on time, including billable hours and client-specific billing arrangements
• Work closely with partners and internal stakeholders to validate billing details before sending invoices
• Track billing schedules and ensure deadlines are consistently met
• Review time entries, expenses, and billing data to ensure accuracy and compliance
• Resolve billing queries and disputes by coordinating with internal teams and communicating with clients
• Maintain clean and organized billing records and documentation
• Support month-end processes by ensuring billing data is complete and up to date
• Identify recurring billing issues and suggest practical improvements to processes
• Partner with collections and AR to ensure smooth handoff from invoicing to payment

What We’re Looking For:

• 4-7 years of experience in billing, accounts receivable, or finance operations
• Familiarity with AI-assisted billing tools: comfortable using AI features in accounting or ERP platforms to flag anomalies, automate invoice matching, or surface overdue accounts faster
• Open to AI-augmented workflows: willing to adopt AI tools that streamline repetitive tasks like data entry, payment follow-ups, or reconciliation, freeing up time for higher-value problem-solving
• Strong attention to detail; you catch errors before they become problems
• Comfortable working with different billing structures (hourly, fixed fee, retainers)
• Clear communicator, able to follow up, clarify, and resolve issues quickly
• Organized and able to manage multiple invoices and deadlines at once
• Experience with accounting or billing systems (ERP, legal billing tools, etc.)
• Solid Excel skills and confidence working with data

At Sterlington, we believe that world-class talent has no boundaries. We are committed to fostering a diverse and inclusive environment where unique perspectives are valued and every individual has the opportunity to thrive. We encourage all qualified candidates to apply.