Title: Assistant Controller

Location: Rancho Cucamonga, A

Duration: Full-time

Compensation: $125,000–$140,000 base *Salary is determined based on various factors including experience, education, and certifications.

Work Requirements: U.S. Citizens, Green Card holders, or otherwise authorized to work in the U.S.

Summary

This Assistant Controller will support the Controller as a true business partner, helping oversee plant-level financials, internal controls, and operational reporting. This role touches everything from month-end close, forecasting, and cost accounting to capital planning and SOX compliance. Ideal for someone who loves being hands-on, digging into data, partnering with operations, and driving improvements within a manufacturing environment.

Responsibilities

• Support financial reporting, plant metrics, and key operational data across the site.
• Review and strengthen internal controls, policies, and compliance processes (including SOX).
• Assist with month-end close: journal entries, account reconciliations, invoicing, and variance analysis.
• Partner with operations leadership to identify levers for improvement in quality, productivity, delivery, inventory, cycle time, and profitability.
• Participate in monthly forecasting and annual planning.
• Analyze financial and operational data to guide decision-making and track performance against plan.
• Support capital appropriation requests and post-project reviews.
• Deploy corporate and business unit initiatives across the plant.
• Act as a data-driven problem-solver, forecasting accurately and adjusting as needed.
• Spend time on the shop floor to understand operational impacts behind the numbers.
• Provide clear storytelling with financial data to help leaders make informed decisions.
• Coach and mentor others within the finance team as needed.
• Travel may be required.
• Perform other related duties as assigned.

Qualifications

• Bachelor’s degree in Accounting, Finance, or Business (Accounting/Finance preferred)
• 5+ years of financial experience
• Manufacturing finance experience
• MBA a plus
• Strong cost accounting background
• Advanced Excel and PowerPoint skills
• Strong communication skills (written and verbal)
• Ability to query and analyze data
• Excellent analytical and problem-solving ability
• Strong interpersonal skills and ability to partner across the plant
• Self-starter who can manage multiple priorities

EEO Statement

Summa Staffing Technologies is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.