Part-Time AR/Billing Assistant, (ACI)

Who we are:

Strongpoint Partners is tech-enabled retirement services platform serving small- to mid-sized businesses with integrated retirement third party administration, recordkeeping, payroll, and HR solutions. Recognized as one of Inc. 5000’s Fastest Growing Private Companies in America and certified as a Great Place to Work, Strongpoint offers a suite of services that prioritizes accuracy, compliance, and reduction of regulatory risk for its clients, delivered by local client success teams that understand the nuances of the markets they serve. With a coast-to-coast network of 19 leading firms including HowardSimon ("HSI"), Jocelyn Pension Consulting ("JPC"), Retirement Strategies Group (“RSG”), Retirement Planners and Administrators (“RPA”), Pension Financial Services (“PFS”), Pollard & Associates ("PA"), Carlson Quinn ("CQ"), SI GROUP ("SIG"), Retirement Planning Consulting Group (“RPCG”), Karel-Gordon & Associates ("KGA"), Cash Balance Actuaries ("CBA"), Pension Consultants, Inc. (“PCI”), Actuaries Unlimited (“AUI”), California Retirement Plans (“CRP”), Benefit Equity ("BEI"), United Benefit Pensions, Inc. ("UBP"), Creative Retirement Systems ("CRS"), Associated Pension Consultants ("APC"), and Allied Consultants, Inc. ("ACI"), Strongpoint Partners combines a relentless passion for service and innovation with the experience and expertise required to make retirement work for everyone. For more information, please visit: www.strongpointpartners.com.  

About Allied Consultants Inc., (ACI):

A TPA headquartered in Chino Hills, CA, Allied Consultants, Inc. specializes in retirement plan for almost 40 years. ACI prides themselves on providing the best solutions to their clients with knowledge, integrity, and professionalism. ACI is an operating partner of Strongpoint Partners, a leading tech-enabled financial services retirement platform backed by Shore Capital Partners (SCP).

Position Summary:

We are seeking a detail-oriented and reliable Part-Time AR/Billing Assistant to support our accounting operations. This role will be responsible for assisting with accounts receivable functions, including preparing and sending invoices, tracking payments, reconciling accounts, and following up on outstanding balances. The AR/Billing Assistant will also provide administrative support to ensure accurate and timely billing processes. This is a part-time position ideal for someone who is organized, dependable, and comfortable working in a professional services environment.

PLEASE NOTE: This role is based out of ACI's office in Chino Hills, CA and requires regular in-person attendance. We value collaboration and believe that working together on-site fosters strong teamwork, communication, and innovation.

Key Responsibilities:

• Accurately apply customer payments (Checks and ACH) and post transactions to the appropriate accounts.


• Monitor accounts for delinquency and follow up on outstanding balances via phone and email.


• Reconcile payments, resolve discrepancies, and update records as needed. Assist with preparing and sending customer invoices.


• Respond to customer inquiries professionally and promptly.


• Maintain accurate AR records and organized supporting documentation.


• Support other administrative and finance-related tasks as needed.


• Other duties as assigned.

Minimum Qualifications:

• 1–2 years of experience in accounts receivable, billing, or related accounting support role, (professional services experience a plus).


• Strong attention to detail with a high degree of accuracy in data entry and recordkeeping.


• Proficiency in Microsoft Office (especially Excel and Outlook); experience with Sage Intacct or similar accounting software preferred.


• Ability to manage multiple tasks and meet deadlines in a part-time, flexible environment.


• Strong written and verbal communication skills for interacting with clients and internal team members.


• Dependable, self-motivated, and able to work independently with minimal supervision.


• Understanding of confidentiality and professionalism when handling financial and client information.

Pay Transparency Statement:

The anticipated compensation for this position is expected to be in a range of $18-$20 per hour.

At Strongpoint Partners, our salary ranges reflect the minimum and maximum base pay for the posted position applicable to all locations across the US. Within the posted salary range, individual pay is determined by the geographic location, job-related skills, experience, education, and certifications. Our total compensation package includes base pay plus a comprehensive benefits program, (if eligible).

Our Value-Driven Employee Experience:

• Flexible Workplace – Hybrid and remote options available for many roles.


• Unlimited PTO – Competitive paid time off, including flexible & unlimited options.


• Inclusive Environment – A culture that values diversity, collaboration, and respect.


• Growth Opportunities – Support for ongoing learning and career development.


• Comprehensive Benefits – Health, dental, vision, life, and disability coverage.


• Workplace Perks – Incentive bonus programs, flexible hours, & more.

**Specific benefits and programs may vary by partner and position.