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120 DEGREEZ MEP Engineering

Senior Mechanical & Plumbing Engineer - PE Required

San Diego, California, United States · On-site

$130k–$149k/yr

Senior+

Experience: 15+ Years Focus: Technical leadership, complex HVAC and Plumbing system design, cross-project QA/QC oversight Location: Full-time, on-site in San Diego, CA Compensation & Benefits: Annual Salary Range: $130,0…

Skills: HVAC Design, Plumbing System Design, QA/QC Oversight, Technical Leadership, California Mechanical Code

Senior Mechanical & Plumbing Engineer - PE Required

120 DEGREEZ MEP Engineering

San Diego, California, United States • On-site

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Senior+

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  • $130k–$149k/yr
  • Full-time
  • bachelor degree, professional certificate
  • 401(k) with up to 3% employer match, 70% employer-paid medical insurance, 100% dental insurance, 100% vision insurance, Annual professional development and certification allowance, Paid Company Holidays
  • Posted 1d ago
  • ~40 hrs/week

Responsibilities

The role involves leading the design, coordination, and quality control of HVAC and plumbing systems for complex commercial projects. It also requires mentoring junior staff and managing technical risks through rigorous QA/QC practices throughout the project lifecycle.

Requirements

Candidates must have a Bachelor's degree in Mechanical Engineering, an active California PE license, and at least 15 years of commercial MEP consulting experience. Proficiency in Autodesk Revit and deep knowledge of California building and energy codes are required.

Full job description

Experience: 15+ Years
Focus: Technical leadership, complex HVAC and Plumbing system design, cross-project QA/QC oversight
Location: Full-time, on-site in San Diego, CA
Compensation & Benefits:
Annual Salary Range: $130,000–$149,000, based on experience, qualifications, and demonstrated technical expertise.
At 120 Degreez, we invest in our team's long-term success—professionally and personally.
  • 401(k) with up to 3% employer match
  • 70% employer-paid medical insurance + 100% dental and vision
  • $1,500 annual professional development and certification allowance
  • Paid Company Holidays + 2 weeks of Paid Time Off (PTO) + 1 week Paid Sick Leave
  • 100% employer-paid life insurance
  • Clear career advancement pathway from Designer through Principal
  • Collaborative, structured, and growth-focused work environment
Role Purpose:
The Senior Mechanical & Plumbing Engineer serves as a senior technical leader responsible for the design, coordination, and quality control of both Mechanical (HVAC) and Plumbing systems on commercial projects. This role provides technical guidance throughout the entire project lifecycle while helping ensure projects are delivered with a high level of quality, accuracy, and code compliance.
The ideal candidate has extensive experience in both Mechanical and Plumbing engineering within an MEP consulting environment and is comfortable leading both disciplines across multiple projects simultaneously. This individual will mentor junior staff, support Project Managers, reduce technical risk through strong QA/QC practices, and serve as a trusted technical resource for clients and internal teams.
Core Responsibilities:
Mechanical Engineering (HVAC)
  • Lead the design of HVAC systems, including air distribution, ventilation, hydronic systems, and equipment selection.
  • Perform and review heating and cooling load calculations, equipment sizing, and system layouts.
  • Review ductwork, piping, controls coordination, and equipment schedules for technical accuracy.
  • Ensure designs comply with the California Mechanical Code, California Energy Code (Title 24), and applicable building codes.
Plumbing Engineering:
  • Lead the design of domestic water, sanitary, storm drainage, vent, natural gas, and specialty plumbing systems.
  • Perform and review plumbing calculations, pipe sizing, fixture unit calculations, and utility coordination.
  • Coordinate plumbing infrastructure and utility connections with civil, architectural, and structural teams.
  • Ensure designs comply with the California Plumbing Code and all applicable regulations.
Technical Leadership:
  • Lead Mechanical and Plumbing engineering efforts on complex commercial projects from design through construction administration.
  • Perform and oversee QA/QC reviews across multiple projects to maintain high technical standards.
  • Review and approve construction documents prior to issuance.
  • Identify technical risks early and develop practical solutions that improve project quality and reduce liability.
  • Resolve multidisciplinary coordination challenges with architectural, structural, electrical, civil, and specialty consultants.
  • Respond to RFIs, submittals, plan check comments, and construction administration requests.
  • Participate in client meetings and provide technical guidance throughout project execution.
  • Mentor Engineers, Designers, and Project Managers while supporting their technical development.
  • Assist with project planning, proposal development, fee preparation, and scope definition.
  • Contribute to the continuous improvement of internal engineering standards, QA/QC procedures, and technical best practices.
Preferred Project Experience:
Candidates should have significant experience designing Mechanical and Plumbing systems for commercial projects, including:
  • Commercial Tenant Improvements
  • Ground-Up Commercial Buildings
  • Retail
  • Mixed-Use Developments
  • Hospitality
  • Restaurants
  • Multifamily Residential
  • Healthcare
  • Office Buildings
Required Qualifications:
  • Bachelor's Degree in Mechanical Engineering or a closely related engineering discipline.
  • Active California Professional Engineer (PE) license.
  • Minimum of 15 years of commercial MEP consulting experience.
  • Demonstrated experience leading both Mechanical (HVAC) and Plumbing engineering design for commercial projects.
  • Strong working knowledge of:
  • California Mechanical Code
  • California Plumbing Code
  • California Building Code
  • California Energy Code (Title 24)
  • Advanced proficiency in Autodesk Revit.
  • Working knowledge of AutoCAD, Bluebeam, Microsoft Office, and standard MEP engineering software.
  • Excellent communication, organizational, and problem-solving skills.
  • Ability to successfully manage multiple projects and priorities in a fast-paced consulting environment.
Preferred Qualifications:
  • 15+ years of commercial MEP consulting experience.
  • Experience mentoring and developing technical staff.
  • Experience supporting project proposals, fee development, and business development efforts.
  • LEED, WELL, or other sustainability-related experience.
  • Strong Construction Administration experience, including field observations, submittal reviews, and responding to RFIs.

Related keywords

Mechanical EngineeringPlumbing EngineeringPE LicenseHVACMEP ConsultingTitle 24California Mechanical CodeCalifornia Plumbing CodeAutodesk RevitAutoCADBluebeamQA/QCCommercial Tenant ImprovementsMixed-Use DevelopmentsHealthcare DesignHospitality Design

About 120 DEGREEZ MEP Engineering

LinkedInVisit site

Customer Service, Quality and Innovation

Industry
Construction
Company size
11-50 employees
Founded
2013
Headquarters
San Diego, California
LinkedIn followers
1,953

WHAT WE DO? At 120 Degreez Engineering, we believe in combining our age old experience with modern day tools and technologies in order to provide our clientele with performance driven engineering and consulting solutions that have been uniquely designed for their respective environments. 120 Degreez Engineering believes in hard work and problem solving to find the most efficient and convenient solutions for all of our clients, no matter how large or small the project may be. We pride ourselves on commitment and integrity using the best engineering practices. 120 Degreez Engineering leaves no stone unturned while engaging with its clients, our workplace and our designs embrace the responsibilities bestowed upon us and all of our solutions help us to demonstrate why we are way ahead of the competition. 120 Degreez Engineering is proud of its vast domestic clientele, a clientele that was built by offering top notch services and cost effective solutions along with ensuring the overall safety and uniqueness of the project at hand. VISION “To become the most preferred engineering service by offering unique, innovative and advanced solutions in a safe and consistent manner” MISSION “To ensure that all our projects meet the highest requirements when it comes to design and value engineering, time guarantees, accountability and transparency in order to benefit each and every one of our stakeholders and the community”. 120 Degreez Engineering is a well known “MEP engineering consultancy” concept that was created around an extremely simple idea – offering unique and innovative engineering consultancy services so as to achieve economies of scale and enhance project viability and scope. Why? Projects that are managed better always perform better.

Offices: 600 B St, 300, San Diego, California 92101, US · 222 N Pacific Coast Hwy, 2000, El Segundo,, California 90245, US

View all jobs at 120 DEGREEZ MEP Engineering

About 120 DEGREEZ MEP Engineering

LinkedInVisit site

Customer Service, Quality and Innovation

Industry
Construction
Company size
11-50 employees
Founded
2013
Headquarters
San Diego, California
LinkedIn followers
1,953

WHAT WE DO? At 120 Degreez Engineering, we believe in combining our age old experience with modern day tools and technologies in order to provide our clientele with performance driven engineering and consulting solutions that have been uniquely designed for their respective environments. 120 Degreez Engineering believes in hard work and problem solving to find the most efficient and convenient solutions for all of our clients, no matter how large or small the project may be. We pride ourselves on commitment and integrity using the best engineering practices. 120 Degreez Engineering leaves no stone unturned while engaging with its clients, our workplace and our designs embrace the responsibilities bestowed upon us and all of our solutions help us to demonstrate why we are way ahead of the competition. 120 Degreez Engineering is proud of its vast domestic clientele, a clientele that was built by offering top notch services and cost effective solutions along with ensuring the overall safety and uniqueness of the project at hand. VISION “To become the most preferred engineering service by offering unique, innovative and advanced solutions in a safe and consistent manner” MISSION “To ensure that all our projects meet the highest requirements when it comes to design and value engineering, time guarantees, accountability and transparency in order to benefit each and every one of our stakeholders and the community”. 120 Degreez Engineering is a well known “MEP engineering consultancy” concept that was created around an extremely simple idea – offering unique and innovative engineering consultancy services so as to achieve economies of scale and enhance project viability and scope. Why? Projects that are managed better always perform better.

Offices: 600 B St, 300, San Diego, California 92101, US · 222 N Pacific Coast Hwy, 2000, El Segundo,, California 90245, US

View all jobs at 120 DEGREEZ MEP Engineering

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