Master Plumber

Maryland Environmental Service

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Baltimore, MD Until 9/14/2026 12+ years exp First posted July 16, 2026 Last posted July 16, 2026
Job description

Current MES Employees who are interested in applying for this position must visit the Internal MES Careers Page by going to their Workday Dashboard, clicking on the Career icon and selecting Find Jobs.

This is an exciting opportunity to join a leading team that provides environmental solutions to the public and private sectors throughout the State of Maryland.

Job Description:

Maryland Environmental Service has an opening for a Master Plumber to join the Technical and Environmental Services Group. This position responsibilities include performing, directing, and supervising advanced plumbing installation, fabrication, inspection, maintenance, troubleshooting, and repair of potable water, wastewater, stormwater, process piping, and related mechanical systems at BWI and Martin State Airports as well as other MES operated facilities throughout the state.

The Master Plumber will serve as the technical authority for plumbing systems and regulated plumbing work, ensuring compliance with applicable federal, state, and local plumbing codes, environmental requirements, safety standards, specifications, and MES policies. Duties include complex diagnostics and repairs involving piping systems, pumps, valves, meters, fixtures, backflow prevention assemblies, cross-connection controls, gas piping where applicable, and process equipment. This position will also provide leadership in preventive maintenance planning, emergency response, staff training, and oversight of journey-level plumbers, apprentices, contractors, and maintenance personnel working toward plumbing licensure. The position may require coordination of plumbing inspections, permits, utility mark-outs, shutdowns, code-related documentation, material procurement, work planning, and communication with operators, supervisors, project managers, engineers, and other professionals.

This field office is a designated 24/7 emergency essential facility. Therefore, the ability to work nights, weekends, holidays, and during adverse weather conditions will be required.

Estimated Pay Range:

$93,440.94 - $128,481.30

Benefits:

  • Health Insurance with choice of medical plan and prescription, dental, vision, and life and disability insurance options, along with flexible spending accounts 

  • 401K retirement savings program with generous agency match 

  • Paid vacation, personal and sick leave 

  • Eleven paid holidays per year  

  • Tuition assistance 

Minimum Requirements:

Minimum qualifications include graduation from an accredited high school or possession of a GED equivalency certificate, plus twelve years of experience performing installation, maintenance, inspection, troubleshooting, and repair of plumbing systems. Experience must include work with commercial, industrial, institutional, utility, water, wastewater, stormwater, or process piping systems. Five years of the required experience must include lead worker, project oversight, directing, or supervisory responsibilities, either directly or indirectly.

Formal vocational, technical, apprenticeship, or trade school training in plumbing or a closely related field may be substituted for up to three years of the required experience on a year-for-year basis. Applicants must possess a current Maryland Master Plumber/Gas Fitter License issued by the Maryland State Board of Plumbing at the time of appointment. Applicants must also possess current backflow prevention certification or obtain certification within ninety days from the date of hire. Additional local plumbing licenses, reciprocal credentials, and registrations may be required depending on assignment.

Any offer of employment will be contingent upon successfully completing required pre-employment screens, to include full background check, drug & alcohol screening, and position appropriate physical.

Maryland Environmental Service is an Equal Opportunity Employer. Applicants must be currently authorized to work in the United States on a full-time basis. MES does not participate in programs that require sponsorship for work visas.

About this role

Summary

Perform, supervise, and oversee plumbing installation, maintenance, and inspections at facilities.

Job title

Master Plumber

Experience level

12+ years

Minimum experience

12+ years exp

Industry

environmental solutions

Location requirements

Baltimore, MD; on-site work required

Salary

$93k–$128k

Management role

Yes

Skills & keywords

Required skills

plumbing licensebackflow prevention certification

Preferred skills

None specified

Specializations

plumbingwater systemswastewatergas pipingbackflow prevention
Locations

Structured locations inferred from the posting.

Baltimore, MD, USA

On-site City