Accounting Assistant - Accounts Payable

Accounting Assistant – Accounts Payable

Location: La Jolla, California
Employment Type: Full-Time
Work Arrangement: 100% Onsite (Not Remote or Hybrid)

Join the Plumb Team

Are you detail-oriented, organized, and someone who takes pride in getting the numbers right? Do you enjoy working with financial information, solving problems, and finding smarter ways to get things done?

Plumb is looking for an Accounting Assistant – Accounts Payable to join our growing team in La Jolla, California.

At Plumb, we provide specialized bill pay, accounting, and financial administration services to high-net-worth individuals, families, and their advisors. Our clients depend on us to manage important financial responsibilities with accuracy, discretion, and exceptional attention to detail.

We're looking for someone who enjoys the fundamentals of accounting but is also excited about the future of the profession. We're building a modern, technology-enabled accounting operation where automation, AI-powered tools, and streamlined workflows help our team work more efficiently while delivering outstanding client service.

If you're dependable, comfortable with technology, and motivated to grow your accounting skills, we'd love to meet you.

What You'll Do

As an Accounting Assistant, you'll play an important role in supporting our daily accounting and bill pay operations. You'll work with financial transactions, reconcile accounts, maintain accurate records, and help ensure our clients' financial activities are handled correctly and on time.

Accounts Payable & Bill Payment

• Review, verify, and process vendor invoices accurately and efficiently.

• Confirm invoice coding, approvals, and supporting documentation before processing payments.

• Enter and maintain invoice information within accounting and bill payment systems.

• Prepare and process payments, including checks, ACH transfers, and electronic payments.

• Maintain accurate vendor records, payment histories, and supporting documentation.

• Monitor outstanding invoices, payment schedules, and accounts payable aging.

• Research and resolve routine invoice discrepancies, payment questions, and vendor inquiries.

Account Reconciliations & Bookkeeping

• Perform monthly bank and credit card reconciliations.

• Review transactions, identify discrepancies, and research missing or incorrectly recorded activity.

• Assist with general ledger coding, expense categorization, and financial recordkeeping.

• Maintain complete and organized financial records to support reporting and review.

• Prepare basic journal entries and other routine bookkeeping adjustments as assigned.

Accounting Operations & Client Support

• Support month-end accounting activities and reporting preparation.

• Maintain accurate and current client information, vendor records, approvals, and documentation.

• Coordinate with internal team members to resolve outstanding transactions or documentation needs.

• Follow established accounting procedures, internal controls, and confidentiality requirements.

• Assist with administrative accounting activities and special projects as needed.

• Help ensure client financial activities are completed accurately, professionally, and within established deadlines.

Technology, Automation & Continuous Improvement

At Plumb, we're investing in technology to make accounting more efficient, accurate, and scalable.

We want team members who are curious, adaptable, and willing to embrace new ways of working.

In this role, you'll:

• Learn and utilize accounting platforms, workflow management systems, and automation tools.

• Develop familiarity with AI-powered tools and agents that support accounting processes.

• Identify repetitive tasks that could benefit from improved workflows or automation.

• Help maintain consistent, standardized processes that improve accuracy and accountability.

• Participate in training and process improvement initiatives as our technology and operations evolve.

• Use sound judgment and established controls when working with automated financial processes.

You don't need to be an AI expert. We're looking for someone who is willing to learn, adapt, and help us build a better way of working.

What We're Looking For

Required Qualifications

• 1–3 years of experience in accounts payable, bookkeeping, accounting assistance, or a similar financial support role.

• Experience performing bank and/or credit card reconciliations.

• Basic understanding of accounting principles, expense coding, and general ledger transactions.

• Experience working with accounting software and Microsoft Excel.

• Strong attention to detail and commitment to accuracy.

• Excellent organizational skills and ability to manage multiple tasks and deadlines.

• Strong written and verbal communication skills.

• Ability to work independently while contributing to a collaborative team environment.

• Professionalism and discretion when handling confidential financial information.

• Willingness to learn new technologies, accounting systems, and automation tools.

Preferred Qualifications

• Associate degree or college coursework in Accounting, Finance, Bookkeeping, or a related field.

• Experience using QuickBooks or comparable accounting software.

• Experience in client accounting services, outsourced bookkeeping, or professional financial services.

• Familiarity with electronic bill payment platforms and document management systems.

• Experience supporting multiple clients, accounts, or entities.

• Interest in process improvement, workflow automation, and emerging accounting technologies.

What Success Looks Like at Plumb

We believe great accounting professionals bring more to the table than technical skills. They take ownership of their work, communicate effectively, and look for opportunities to improve.

You'll be successful in this position when:

• Accuracy Comes First: Payments, reconciliations, and financial records are consistently accurate and completed on time.

• You're Organized and Accountable: Outstanding items are tracked, documentation is complete, and deadlines are met.

• You Take Initiative: You identify discrepancies, follow up on unresolved items, and help prevent problems before they affect clients.

• You Embrace Technology: You're comfortable learning new systems and contributing ideas that improve efficiency.

• You Value Teamwork: You communicate clearly, support your colleagues, and contribute to a positive, professional work environment.

• You Protect Client Trust: You handle sensitive financial information with discretion, integrity, and care.

Why Join Plumb?

At Plumb, we're building more than an accounting team. We're creating a forward-thinking financial services organization that combines experienced professionals, modern technology, strong operational controls, and exceptional client relationships.

As part of our team, you'll have the opportunity to:

• Build valuable experience supporting sophisticated financial operations and high-net-worth clients.

• Work alongside experienced accounting and financial services professionals.

• Develop your skills in accounting technology, workflow automation, and modern financial systems.

• Contribute to a growing organization where accuracy, accountability, and continuous improvement matter.

• Be part of a collaborative, professional team that values reliability, initiative, and exceptional service.

Benefits & Compensation

Plumb offers a competitive benefits package designed to support your health, financial well-being, and future.

Medical Insurance

• Employer contributions covering 80% of the employee's base medical plan and 50% of dependent coverage.

• HMO, PPO, and HSA-compatible plan options available.

Dental & Vision Coverage

• Employer covers 80% of the employee's selected dental EPO plan.

• Additional dental and voluntary vision insurance options available.

Tax-Advantaged Savings

• Health Savings Account (HSA) options.

• Flexible Spending Accounts (FSA).

• Dependent Care savings plans.

401(k) Retirement Plan

• Traditional and Roth 401(k) options.

• Employer matching available after one year of eligible full-time employment.

Life & AD&D Insurance

• $50,000 in employer-paid life insurance coverage and AD&D benefits after one year.

• Optional additional coverage available.

Benefits are subject to eligibility requirements, applicable waiting periods, and plan terms.

About Plumb

Plumb provides comprehensive bill pay, accounting, financial reporting, and financial administration services to high-net-worth individuals, families, family offices, and their trusted advisors.

Our clients rely on us to manage complex financial details with precision, confidentiality, and care.

We combine personalized service with strong financial controls and innovative technology to help clients simplify their financial lives.

As our organization continues to grow, we're investing in our people, systems, and processes to build an exceptional client service experience.

Ready to Join Us?

If you're an accounting professional who values accuracy, enjoys working with financial details, and wants to be part of a growing, technology-forward organization, we encourage you to apply.

Bring your attention to detail, your curiosity, and your commitment to doing great work. We'll provide an environment where you can continue to learn and grow.

Apply today and explore your future with Plumb.