Castle Aquatics https://castleaquatics.com is a premier distributor of high-quality residential koi pond equipment and water garden supplies located in Hayward, CA. Our mission is to provide our clients with opportunities to experience the tranquility of water. Originally focused on traditional B2B relationships with retail dealers, we are expanding our footprint into direct-to-consumer (B2C) e-commerce channels and contractor markets. We are seeking a seasoned, dependable, and systems-driven professional to join our front-office team and help anchor our operations during this exciting growth phase. This is a role for an individual deeply experienced in customer service/support who wants to learn our business and make a long-term contribution to the company. As our Customer Support Coordinator

• Sales & Accounting, you will sit at the absolute center of customer care, logistics, and basic accounting.

Working alongside our veteran customer service team, you will support our major account managers, handle inbound dealer, contractor and consumer inquiries, and manage the entry and matching of our accounts payable (AP) vendor invoices. This is a stable, long-term role designed for an experienced professional who thrives in a fast-paced environment where no two days are the same. The ideal candidate possesses strong customer service/support abilities and professionalism, exhibits calm under pressure, takes pride in managing operational details seamlessly. This is a full time, direct hire, on site role.

Customer & Contractor Care:

Provide mature, calm, and solution-oriented support to our network of dealers, contractors, and e-commerce customers via phone, email, and text. Answer basic product questions (training provided).

Accounts Payable:

Monitor and manage our vendor invoice queue. You will utilize Zoho Books to enter expense bills and match PO bills against warehouse receiving logs.

Accounts Receivable:

Post customer payments by card or ACH and process non-inventory credits as needed. Process check deposits 3x weekly. Order & Returns (RMA)

Coordination:

Manage the daily order lifecycle across B2B and B2C channels. Process customer return requests for defective or unwanted pond equipment, issue return shipping labels, cross-reference inventory with the warehouse dock, and process customer credit memos within Zoho Books.

Team Support:

Act as a dependable teammate to our senior front-line customer service representatives, absorbing administrative tasks to keep our highest-value accounts running smoothly.

Experience:

• 5+ years of dedicated experience in customer service and support, office coordination, bookkeeping, or logistics administrative roles. Small business experience is a massive plus.
• Tech Literacy
• high comfort level working with modern office software and digital order systems. Direct experience with ERP or accounting ecosystems (such as Zoho Books, QuickBooks, Xero, or NetSuite) is highly preferred.
• Composure & Resilience
• proven track record of handling high volume and managing difficult customer situations with extreme professionalism.
• Attention to Detail
• ability to spot small numerical discrepancies between vendor invoices, purchase orders, and warehouse receiving reports.
• Proximity & Reliability
• short, reliable commuting distance to Hayward, CA, preferred.

Maintains punctual on-site attendance.

Benefits:

Competitive salary Paid time off (PTO) and paid holidays Optional health insurance Stable, predictable workflow Work with a tight-knit, passionate, and supportive local team

Compensation:

$27.00

• $32.

00 per hour

Work Days/Hours:

Monday to Friday (7:00 AM

• 4:00 PM)

Pay:

$27.00

• $32.

00 per hour Expected hours: 40.0 per week

Benefits:

Health insurance Paid time off

Work Location:

In person