Billing & Accounts Receivable Specialist

Contractor - Billing & Accounts Receivable Specialist Location Union City, CA Job Summary We are seeking a Billing & Accounts Receivable Contractor to support day-to-day invoicing, AR tracking, customer billing, and general accounting activities. This role is ideal for someone who is detail-oriented, proactive, comfortable working cross-functionally, and able to manage multiple accounting priorities in a growing manufacturing environment. The position can be full-time or part-time , with a preference for full-time availability. Key Responsibilities Prepare, review, and issue customer invoices accurately and on time Validate billing information, including rates, quantities, contract terms, customer purchase orders, and supporting documents Monitor accounts receivable aging reports and follow up on overdue accounts Reconcile customer accounts and resolve billing or payment discrepancies Manage invoice uploads through customer billing portals as needed Communicate with customers regarding billing questions and payment status Partner with sales and operations teams to resolve invoicing, credit invoice, and payment-related issues Support general accounting tasks, including reconciliations, journal entries, and month-end close activities Maintain customer sales tax exemption forms and ensure accurate sales tax treatment on invoices Prepare AR, invoicing, and collections-related reports Identify opportunities to improve billing and AR workflows for better accuracy and efficiency Qualifications 2+ years of experience in billing, invoicing, accounts receivable, or general accounting Manufacturing industry experience preferred Experience with accounting or ERP systems; Sage experience is a plus Strong Microsoft Excel skills, including pivot tables and VLOOKUPs Experience with customer invoicing, AR aging, account reconciliation, and collections follow-up Strong attention to detail and ability to maintain accuracy in a fast-paced environment Good communication skills and ability to work with customers, vendors, internal teams, and management Bachelor's degree in Accounting, Finance, or a related field preferred; equivalent work experience will also be considered Knowledge of GAAP and month-end / year-end close processes is a plus Ideal Candidate The ideal candidate has hands-on experience supporting billing, customer invoicing, accounts receivable, reconciliations, and collections follow-up . This person should be comfortable working with cross-functional teams, reviewing billing documentation, resolving discrepancies, and supporting broader accounting operations as needed. Compensation & Benefits Competitive compensation Opportunity to gain experience in a high-growth advanced manufacturing environment Collaborative and fast-moving team culture Exposure to customers in AI infrastructure, data center, and enterprise technology markets