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Human Resources Specialist

Mesa Energy Systems, Inc.
Irvine, CA Full Time
POSTED ON 5/28/2026
AVAILABLE BEFORE 5/26/2027

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.

Job Summary

The Human Resources Specialist will provide various HR and labor relations support. This role will administer the employee benefits, collective bargaining (union) reporting, union contract management, and maintaining personnel records. Will manage HR documents, verify data and update internal databases. The Human Resources Specialist will balance various administrative tasks in a timely manner while supporting our employees and conforming to labor laws.

Essential Duties & Responsibilities

• Process and prepare monthly reports for collective bargaining (union) employees, including hours worked, dues, benefits, and other required data.• Maintains all HR Software (COINS, Bswift, etc.) functions, including new hire, terminations, personnel updates, and maintain benefit enrollment records.• Support audits by preparing documentation and responding to requests related to union employee data.• Coordinate correspondence and communications related to union matters.• Provides support and guidance to employees with questions regarding benefits changes and benefit information.• Assists the HR team with all pre-hire/new hire processes and E-Verify and enters personnel data in the HR System when needed.• Process new hires, follow up, and ensure all outstanding paperwork is returned complete.• Handle all personnel changes and requests, processing them in a timely manner.• Computer data entry & confirming that the data produced is correct• Run payroll reports for weekly payroll needs, audits, and special projects.• Works with branches to ensure new hire, termination, and pay change paperwork is within company compliance.• Adheres to the strict confidentiality guidelines of the department.• Participate in HR projects, special tasks, and other duties as assigned.

Qualifications

• High school diploma or GED is required, an associate degree is preferred• 3 years of work experience in HR support experience• 2 years in a unionized environment, working with collective bargaining/union reporting processes is highly desirable.• MS Office applications, Microsoft Excel, and COINS (OA) a plus. • Strong ability to organize and coordinate multiple tasks• Effective written and verbal communication skills.• Strong attention to detail and data accuracy.• Ability to coordinate with a team and work well with others

 

#Mesa #LI-Mesa #LI-HVACjobs #LI-Onsite

Equal Opportunity Employer

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

Affirmative Action Policy

Please review our Affirmative Action Policy.

Notice to Prospective Employees

Notice to prospective employees: There have been fraudulent postings and emails regarding job openings. EMCOR Group and its companies list open positions here. Please check our available positions to confirm that a post or email is genuine. EMCOR Group and its companies do not reach out to individuals to help with marketing or other similar services. If an individual is contacted for services outside of EMCOR’s normal application process – it is probably fraudulent.

Geographic Disclosure

Compensation Range: $31 - $35 per hour

 

Benefits: 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.

Salary : $31 - $35

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