TL;DR

We are seeking a detail-oriented Accounting Operations Specialist to support day-to-day finance operations, including accounts payable, billing review, posting of cash receipts, and collections follow-up. The ideal candidate is organized, accurate, and comfortable working cross-functionally in a fast-paced environment.

Who we are

Adelaide is the leader in one of the fastest-growing areas of advertising: attention measurement and activation.

Since 2020, we've become the trusted media quality measurement partner for 40% of Fortune 50 brands who rely on our award-winning AU metric to plan smarter campaigns, invest in high-quality inventory, and dive stronger business outcomes. Adweek has called Adelaide's AU "the attention economy's most widely recognized metric," and AdExchanger named it "Best measurement/Analytics Capability."

Our business continues to scale rapidly, outperforming the industry with a 35% three-year CAGR. What began as a 9-person startup in 2019 is now a team of more than 75.

The past year brought meaningful expansion. We launched the AU ecosystem, giving brands, media agencies, and publishers a unified way to leverage and transact on AU. We broadened our programmatic footprint with custom bidding in GoogleDV360 and pre-bid targeting in The Trade Desk, and grew our partner roster to over 125 platforms and publishers. Leading brands like Dell, Diageo, an Jaguar Land Rover—along with premium publishers such as Hearst, Spotify, and The New York Times—continue to demonstrate AU's value across the media lifecycle.

Adelaide is backed by prominent investors such as Human Ventures (Joe Marchese), Aperiam Ventures (Joe Zawadzki & Eric Franchi), WGI (Jonah Goodhart), and Irwin Gotlieb.

We have a NYC office and a London WeWork, but operates as a remote-friendly company with flexible work options.

How we work

We're a team of action-oriented doers—management rolls up their sleeves and contributes every day. Our culture is rooted in curiosity and rigor: opinions are held lightly, debated openly, and strengthened through testing. Everyone is encouraged to play a role in shaping planning and strategy.

We're built on belonging and growth—94% of employees report a strong sense of belonging, and 81% say they’re happy at work.

Position overview

This position reports to the Accounting Manager and is responsible for supporting day-to-day accounting and finance operations across billing, accounts receivable, accounts payable, and general accounting, with a focus on accuracy, process efficiency, and scalability.

In this role, you will be joining a lean, fast-moving finance team. You’ll be responsible for ensuring reliable billing and cash collection processes, supporting timely month-end close, and maintaining accurate financial records. Day-to-day activities range from reviewing and preparing customer invoices, posting and reconciling cash receipts, following up on overdue accounts, processing vendor invoices and expenses, and assisting with month-end close activities.

We're seeking a candidate with 2–4+ years of experience in accounting or finance operations, with a focus on AP, AR, and billing.

This is a fully remote role within the United States, with opportunities to connect with colleagues at our New York office. You’ll need to be in NYC a few times per year.

What you'll learn

An important part of our culture is continuous learning and the open sharing of ideas. We offer:

• Access to a broad network of investors and advisors who can help you and your team succeed
• Mentorship from executives with decades of experience in adtech and media
• Regular internal knowledge-sharing sessions
• An education budget to support ongoing professional growth and development

In this role you'll learn:

• How to document, streamline, and automate high-impact internal workflows, using speed to close and billing accuracy as key performance indicators
• How to increase the velocity of the month-end close process
• How to improve billing accuracy while reducing days sales outstanding (DSO)
• How to improve forecasting accuracy through cleaner operational data

Core responsibilities

• Review customer invoices for accuracy prior to issuance, including amounts, dates, contract terms, purchase orders, and supporting documentation
• Coordinate with Sales and Account Management to resolve billing discrepancies and support invoice preparation and documentation
• Post and apply customer payments (ACH, wire, check, credit card), reconcile daily bank activity, and research unapplied cash
• Monitor accounts receivable aging, execute collections outreach for overdue accounts, and follow up with customers to resolve unpaid or disputed invoices
• Process vendor invoices and employee expenses, ensure proper approvals and GL coding, support vendor onboarding, prepare payment runs, and assist with month-end close activities related to AR, AP, and billing

What you'll bring

• 2–4+ years of experience in accounting or finance operations, with hands-on experience in AP, AR, and billing
• Experience using QuickBooks Online
• Strong proficiency in Excel and/or Google Sheets
• Excellent attention to detail and accuracy
• Strong communication skills, including customer and vendor interactions
• Ability to manage multiple priorities and deadlines in a fast-paced environment

What will set you apart

• Experience working in a startup or high-growth environment
• Experience with collections or billing-related customer communications
• Exposure to multi-currency or cross-border transactions
• Experience supporting process automation or accounting system implementations

Benefits

Health & Wellness

• Medical, dental, and vision insurance
• Paid time off
• Parental leave
• Employee Development & Wellness Stipend 
• Holiday break
• Volunteer time off

Financial & Compensation

• Competitive salary
• Performance-based quarterly bonus
• Stock options
• 401(k) retirement plan

Workplace & Equipment

• Remote-first environment
• New York office access
• Access to available WeWork spaces 

Equal Employment Opportunity (EEO) Statement

Adelaide is proud to be an Equal Opportunity Employer, committed to fostering a diverse, equitable, and inclusive workplace where all employees can thrive. We consider all qualified applicants for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other legally protected status.

Our commitment to equal opportunity employment extends beyond basic compliance to encompass the active cultivation of a workplace that values different perspectives, backgrounds, and experiences.