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Own Your Success

As employee owners, we share in our individual and collective successes. And we seek out future employees who share our core values of integrity, teamwork, quality craftsmanship, and entrepreneurial spirit. We're a team of experienced construction professionals — industry leaders — all pulling toward the same goal.

Join Our Team

As part of the MMC Corp family of companies, Countywide Mechanical Systems is proud to offer a wide array of career opportunities. You can own your success too by contacting our talent development team or click "Current Openings" below to learn more about current opportunities at our company.


We offer the following benefits:

  • Employee Stock Ownership Plan
  • 401k
  • Incentive programs
  • Comprehensive health, dental, and vision insurance
  • Paid time off
  • Paid holidays

Equal Opportunity Employer

Countywide Mechanical Systems is fully committed to Equal Employment Opportunity and to attracting, retaining, developing and promoting the most qualified employees without regard to their race, gender, color, religion, sexual orientation, national origin, age, physical or mental disability, genetic information, citizenship status, veteran status, or any other characteristic prohibited by federal, state or local law.

Further, it is our policy to take affirmative action to recruit minority and female employees for any position for which the employee or applicant for employment is qualified. Countywide Mechanical Systems provides reasonable accommodation for qualified individuals with disabilities and disabled veterans in job application process. If you have any difficulty using our online system and you need an accommodation due to a disability, you may contact the Human Resources Administrator about your interest in employment. Any questions or concerns about this statement can be directed to Countywide Mechanical Systems’ Human Resource Administrator at (913) 956-3891.

For more information regarding your equal employment opportunity protections, click on the links below:

Countywide Mechanical Systems is a participant in the E-Verify® program.

EEOC Poster
Pay Transparency Notice

E-Verify Participation Poster English and Spanish
E-Verify Participation Poster Spanish
Right to Work (English)
Right to Work (Spanish)

California Consumer Privacy Act (CCPA) Notice at Collection

Contact us to find out more about employment opportunities.