We are looking for an experienced Controller to support a growing construction organization in Ontario, California. This Long-term Contract position will lead core accounting operations, strengthen financial oversight, and deliver reliable reporting that supports business decisions. The ideal candidate brings deep expertise in construction accounting, including job costing, work-in-progress reporting, and percentage-of-completion methods, along with hands-on Sage 50 experience.

Responsibilities:

Direct day-to-day financial operations across the general ledger, payables, receivables, payroll, fixed assets, and cash activity. Produce accurate monthly, quarterly, and annual financial reports and present meaningful insights to leadership. Oversee the full close cycle, ensuring month-end and year-end activities are completed on schedule and with a high level of accuracy. Manage project accounting processes for construction jobs, with close attention to cost tracking and financial performance by project. Develop and maintain work-in-progress schedules and apply percentage-of-completion accounting to reflect project status appropriately. Evaluate project margins, identify variances against expectations, and communicate findings to operational and executive teams. Establish and reinforce internal accounting controls to promote compliance, accuracy, and consistency in financial records. Lead and support the accounting team while fostering accountability, efficiency, and strong financial practices across the department. Demonstrated experience serving in a Controller or senior-level accounting leadership role within the construction industry. Strong command of construction accounting principles, including job cost tracking and project-based financial reporting. Proven ability to prepare and interpret work-in-progress schedules and percentage-of-completion calculations. Hands-on experience managing month-end close and broader financial statement preparation. Proficiency with Sage 50 and confidence working within accounting systems to support reporting and analysis. Solid understanding of internal controls, cash management, and core accounting processes. Ability to analyze financial results, explain variances, and provide practical recommendations to leadership. Robert Half is the world's first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles. Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app and get 1-tap apply, notifications of AI-matched jobs, and much more. All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information. © 2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking "Apply Now," you're agreeing to Robert Half's Terms of Use and Privacy Notice .