Full-Time

Mechanical Plumbing Engineer/Designer

Updated on 5/26/2026

Coffman Engineers

Coffman Engineers

501-1,000 employees

Multidisciplinary engineering and project management firm

Compensation Overview

$110k - $150k/yr

+ Overtime + Discretionary Bonus

No H1B Sponsorship

Los Angeles, CA, USA

Hybrid

Hybrid schedule; subject to change.

Category
Mechanical Engineering (1)
Required Skills
AutoCAD
Requirements
  • Minimum of five years of experience designing plumbing systems for multi-family residential or commercial buildings.
  • High proficiency with AutoCAD and Revit is required.
  • Familiarity with relevant codes: mechanical, energy, plumbing.
  • Knowledge of designing domestic water calculations and multi-system riser diagrams.
  • Capable of performing engineering and/or design work without supervision.
  • Experienced with the latest release of Revit, AutoCAD, BIM 360, and other CAD and BIM tools common to the discipline.
  • Able to design layouts, details, and overall system design for typical, discipline-specific systems.
  • Able to perform field observations and reports.
  • Able to work with numerous project teams to assist with project completion.
  • Knowledge of codes and design and construction practices.
  • Able to multi-task and prioritize in a fast-paced environment.
  • Detail oriented, possess a high degree of accuracy.
  • Able to work independently as well as part of a team.
  • Excellent verbal, written and interpersonal communication skills.
Responsibilities
  • Serve as a technical leader, bringing expertise in complex project design and execution while mentoring the team for long-term growth.
  • Design plumbing systems for significant large-scale mid-rise and high-rise residential projects.
  • Consult to owners and general contractors and work as part of a multi-discipline engineering team.
  • Maintain high standards of quality, compliance, and innovation across projects.
Desired Qualifications
  • Experience in healthcare, education, data centers, and other target markets.
  • B.A. or B.S. from an accredited college in related field (preferred).
  • Certified in Plumbing Design (CPD) or equivalent (preferred).
  • California Engineer in Training (EIT) or Professional Engineer (PE) Registration (preferred).
  • Los Angeles or California experience (preferred).

Coffman Engineers provides engineering consulting services as both prime and sub-consultant on projects of all sizes across commercial, retail, institutional, government, industrial, and project/construction management sectors. Its teams bring together multiple disciplines—civil, structural, mechanical, electrical, fire protection, process piping, instrumentation and controls, corrosion control, project management, commissioning, and land surveying—to create integrated, multi-disciplinary project teams.

Company Size

501-1,000

Company Stage

N/A

Total Funding

N/A

Headquarters

Seattle, Washington

Founded

1979

Simplify Jobs

Simplify's Take

What believers are saying

  • Kimo Unten starts July 1, 2026, bringing regional client knowledge.
  • Chris Horgan’s 2026 Associate promotion strengthens Honolulu’s local leadership bench.
  • Jeff Gries and Justin Freeman expand program and energy execution across national pursuits.

What critics are saying

  • John Thielst’s exit after 2028 weakens the Pacific relationship moat.
  • Competitors will target Honolulu and Guam during the July 2026 leadership handoff.
  • Coffman’s energy and federal growth depend on crowded markets and budget-driven awards.

What makes Coffman Engineers unique

  • Coffman combines civil, structural, mechanical, electrical, and fire protection expertise.
  • Honolulu and Guam leadership transition is planned, with continuity through January 1, 2028.
  • The firm added Miyashiro and Associates to strengthen Honolulu local capabilities.

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Benefits

Hybrid Work Options

401(k) Retirement Plan

401(k) Company Match

Company News

Newswire
Feb 19th, 2025
Coffman Engineers Announces Promotion Of Steven Dannaway To General Manager Of Downtown Los Angeles Office

Promotion Supports Company's Growth in Los Angeles

Coffman Engineers
Jan 7th, 2025
Coffman's Anchorage and Spokane offices Welcome New General Managers

SPOKANE, Washington, January 9, 2025 - Coffman Engineers is pleased to announce the appointment of Ben Momblow, PE, and Jeff Mitchell, PE, SE, as new General Managers for the Anchorage, Alaska, and Spokane, Washington offices.

Newswire
Nov 5th, 2024
Coffman Engineers Opens Office in Duluth, Minnesota

Coffman Engineers opens office in Duluth, Minnesota.

Newswire
Oct 25th, 2023
Coffman Engineers Announces Federal Programs Leadership Transition

Alaska-Based Principal Brent Little, PE, Leads Company’s Federal Strategy . .

Newswire
Oct 17th, 2023
Coffman Engineers Hires Steven Hill For Key Ccus/Hydrogen Role

Houston-Based Mechanical Engineer Supports Market Growth . .