Corporate Controller – San Marcos

Diamond Fence Co.; San Marcos (CA); On-site; USD 150,000 - 180,000; Full time

Benefits offered by this job

401(k)

Dental insurance

Health insurance

Life insurance

Paid time off

Professional development assistance

Tuition reimbursement

Vision insurance

Job summary

Diamond Environmental Services LP (San Marcos, CA) seeks a Corporate Controller to lead the accounting function for our multi-location sanitation business. You will drive financial reporting, close cycles, and internal controls while mentoring the accounting team.

The role requires 10+ years in accounting, GAAP mastery, and strong ERP/Excel skills. Competitive salary and full benefits accompany a leadership-focused and high‑impact environment.

Qualifications

• Strong GAAP understanding and financial reporting expertise.
• Experience leading accounting teams and multi‑location operations.
• Familiarity with ERP systems and financial controls.

Responsibilities

• Lead accounting operations, close processes, and financial reporting.
• Strengthen internal controls and policy development.
• Oversee accounts payable, receivable, payroll, and asset accounting.

Skills

GAAP knowledge

ERP systems

Excel proficiency

Leadership experience

Education

Bachelor’s degree in Accounting

Master’s degree preferred

Tools

QuickBooks

ERP platforms

Microsoft Excel

Job description

Corporate Controller – San Marcos

Locations:San Marcos, CA - HQ Categories:Accounting Apply Home / Jobs /Corporate Controller – San Marcos

Job Description

Prominent Environmental Services Company

Corporate Controller

About Our Company

We are a leading equipment rental company in the sanitation industry performing site services throughout Southern California. For over 25 years, we have been family owned and operated, proudly serving customers across the construction, special events, commercial, industrial, residential markets, and emergency services.

We are seeking an experienced, detail-oriented, and business-minded Corporate Controller to lead and strengthen the company’s accounting function. The Company’s CFO is planning a gradual retirement and transition out of the organization. During this transition, the CFO will remain onsite and available to provide hands-on training, guidance, and mentorship to the Corporate Controller.

Position Summary

The Corporate Controller will be responsible for the overall leadership, integrity, and effectiveness of the company’s accounting operations, financial reporting, and internal control environment. This position will oversee the accounting cycle, general ledger, month-end and year-end close, financial statement preparation, accounts receivable, accounts payable, payroll accounting, fixed assets, revenue recognition, reconciliations, and other core accounting activities, that this family business will require.

Key Responsibilities

Accounting Operations & Financial Reporting

• Lead the company’s accounting function, ensuring accurate, complete, and timely recording of financial transactions across all locations, departments, and business activities.
• Manage the monthly, quarterly, and annual financial close processes, establishing clear timelines, responsibilities, review procedures, and accountability for completion.
• Establish and maintain standardized accounting policies, procedures, and practices across the organization.

Internal Controls, Compliance & Audit Readiness

• Develop, implement, and maintain effective internal controls to safeguard company assets, ensure accurate financial records, and reduce the risk of error, fraud, and unauthorized transactions.
• Establish appropriate segregation of duties, approval authorities, reconciliations, and review procedures throughout the accounting function.
• Ensure compliance with applicable accounting standards, tax requirements, regulatory obligations, contractual requirements, and company policies.
• Create reports according to outsources accounting firm’s requests.
• Create reports for ownership/partners and upper management.

Accounts Payable, Cash & Working Capital

• Oversee accounts payable operations, ensuring accurate invoice processing, appropriate expense coding, proper approvals, and timely vendor payments in accordance with agreed payment terms.
• Establish effective procedures for vendor onboarding, invoice validation, duplicate payment prevention, and resolution of vendor discrepancies.
• Maintain appropriate controls over disbursements, banking transactions, payment approvals, and other cash-related activities.
• Manage annual distributions.

Process Improvement, Systems & Technology

• Evaluate existing accounting processes and identify opportunities to simplify, standardize, automate, and improve efficiency.
• Strengthen the use of the company’s accounting and operating systems to improve transaction accuracy, financial reporting, and access to reliable information.
• Establish standardized processes for account reconciliations, journal entry preparation, financial close, billing, collections, and other recurring accounting activities.

Leadership, Team Development & Cross-Functional Collaboration

• Lead, develop, and hold the accounting team accountable for accurate work, timely deliverables, strong internal controls, and professional standards.
• Establish clear roles, responsibilities, performance expectations, and measurable objectives for accounting personnel.
• Develop team capabilities through coaching, training, process documentation, cross-training, and succession planning.

What We’re Looking For

The ideal candidate will have:

• Approximately 10 or more years of progressive accounting and finance experience, including significant responsibility for general accounting, financial reporting, and accounting operations, including leadership experience managing accounting teams and overseeing multiple accounting functions.
• A strong understanding of generally accepted accounting principles (GAAP), financial statement preparation, account reconciliations, accrual accounting, and internal controls.
• Financially stable (person and background).
• Deep understanding of accounting responsibilities as they relate to a privately held company.
• Demonstrated experience managing month-end and year-end close processes and delivering accurate financial statements within established deadlines.
• Experience developing, documenting, and implementing accounting policies, procedures, and internal controls.
• Strong analytical skills and the ability to evaluate financial results, investigate variances, and communicate meaningful findings to management.
• Strong proficiency with accounting systems, enterprise resource planning (ERP) platforms, Microsoft Excel, QuickBooks, and financial reporting tools.
• Excellent organizational skills, attention to detail, and a commitment to accuracy, consistency, and accountability.
• Strong leadership, communication, and interpersonal skills, with the ability to collaborate effectively across business functions.
• A proactive, hands‑on approach and the ability to balance day‑to‑day accounting execution with longer‑term process improvement.
• The ability to manage competing priorities, meet deadlines, and maintain high standards in a dynamic, multi‑location operating environment.

Preferred Qualifications

• Bachelor’s degree in Accounting, Finance, or a related field. Master’s Degree preferred.
• Experience in a multi‑location/entity sanitation/waste management, equipment rental, transportation, logistics, or other complex asset‑intensive industries.
• Experience supporting external audits, tax compliance, internal control assessments, and financial risk management.
• Experience managing fixed asset accounting for vehicles, equipment, facilities, and other capital‑intensive assets.
• Experience with process improvement methodologies (Lean, Six Sigma, etc.).
• Experience developing accounting teams, establishing succession plans, and improving departmental performance.

Why Join Us?

This is an opportunity to join a growing organization and play a meaningful role in strengthening how the company uses data to understand performance, solve problems, and make decisions.

If you are a technically capable, analytical professional who enjoys working with source data, solving business problems, building useful reporting solutions, and turning information into actionable insights, we would love to hear from you.

Diamond Services is an Equal Opportunity Employer and is committed to providing equal employment opportunities to all qualified applicants and employees. Employment decisions are made without regard to any characteristic protected by applicable federal, state, or local law.

Location: San Marcos, California.

Industry: Equipment Rental Services (sanitation)

Employment Type: Full-Time, Exempt

Pay: $150,000.00 – $180,000.00 per year

Benefits:

• 401(k)
• Dental insurance
• Health insurance
• Life insurance
• Paid time off
• Professional development assistance
• Tuition reimbursement
• Vision insurance

Education:

• Bachelor’s (Required)

Experience:

• Accounting and Finance: 10 years (Required)

WE ARE AN EQUAL OPPORTUNITY EMPLOYER.

About Diamond Environmental Services LP:

Diamond Environmental Services is an Essential Sanitation service to critical infrastructure work forconstruction, energy, waste, and healthcare industries and government sites. We are open and operating with thesafety of our employees and customers coming first and foremost.

With over 20 years industry experience Diamond Environmental Services has become one of Southern California'spremier portable sanitation companies. With Locations serving the counties of San Diego, Riverside, and Orange,San Bernardino and Los Angeles, we provide all types of portable sanitation services and temporary fencing to bothcommercial and residential customers.