Assistant Controller

About Us

We are a full-service HVAC, building automation, chiller, and retrofit contractor with a reputation for combining high-quality consulting services with customized energy solutions. Our integrated, single-source solutions include turnkey in-house capabilities with design assistance, as well as engineering applications and automated control systems.

Assistant Controller is a manager-level position responsible for assisting the Controller in directing the Company’s accounting and finance functions. These functions include establishing and maintaining the Company’s accounting principles, practices, procedures, and initiatives, as well as preparing and analyzing financial reports and presenting findings and recommendations to top management. In performing the duties of an Assistant Controller, an employee must demonstrate expertise in various business concepts, practices, and procedures.

• Assist the Controller in managing the monthly, quarterly, and annual financial close process
• Prepare and/or review journal entries, complex account reconciliations, and reporting schedules
• Support the Controller in the preparation, review and timely issuance of financial statements in accordance with U.S. GAAP
• Contribute to improvements in close timelines and reporting efficiency
• Monitor, communicate and resolve open accounting issues and all accounting-related operational issues
• Review preparation of quarterly and annual sales/use tax returns
• Assist with preparation for external and internal audits; coordinate supporting schedules and documentation
• Ensure compliance with financial reporting standards, corporate and internal policies and internal controls
• Identify opportunities to leverage data analytics and technology to improve decision-making and operational efficiency
• Lead, mentor, and develop accounting staff by setting goals, managing performance and providing ongoing training and support
• Maintain confidentiality of financial and company information

• Bachelor’s degree or higher in Accounting or Finance from an accredited university
• 6+ years’ progressive accounting experience
• Prior supervisory experience with ability to manage, mentor, and support accounting staff
• Strong understanding of U.S GAAP and financial reporting requirements
• Active or inactive CPA preferred, but not required
• Experience in construction accounting is preferred but not required.
• Excellent verbal and written communication skills
• Knowledge and experience with corporate ERP/accounting systems and COINS software familiarity are a plus.
• Demonstrated proficiency with Microsoft Office suite, Excel (advanced level)
• Ability to act and operate independently with minimal daily direction from manager to accomplish objectives

As a leading provider of mechanical and electrical construction, facilities services, and energy infrastructure, we offer employees a competitive salary and benefits package and we are always looking for individuals with the talent and skills required to contribute to our continued growth and success. Equal Opportunity Employer/Veterans/Disabled

Please review our Affimitive Action Policy.

$135,000 - $160,000 per year

We are committed to providing employees a comprehensive benefits package which includes medical, dental, and vision coverage, along with health savings and flexible spending accounts, life insurance, disability, a 401(k) Savings Plan, College Coach and employee assistance program.

US-CA-Irvine

Mesa Energy Systems, Inc.

Accounting/Finance

Full-Time

Onsite

6 days ago (6/10/2026 6:54 PM)