Mid-Level Mechanical Engineer at Salas O'Brien in Irvine, CA | USD85,000-95,000 | Kablio

Role

Description

load calculations

hvac design

equipment selection

qa/qc

construction admin

project lead

Perform Load/Energy calculations with software such as Trace 700, IES and similar programs
Assist in the procurement of new work; including the development of client relations and participation in project interview
Prepare detailed design documents, reports, and studies
Coordinate work with other disciplines
Provide construction administration services
Write/edit project specifications
Lead project teams and serve as the primary contact for clients
Develop HVAC system designs of a given project based on scope of work and/or client RFPs
Conduct existing building surveys and documentation of existing HVAC systems
Perform QA/QC of design work
Oversee and provide guidance to junior engineers
Provide engineering design, evaluation, and planning of mechanical systems for a variety of market types
Code compliance research
Develop system design calculations and selection of equipment for use in buildings

Requirements

pe license

leed

mechanical eng

hvac

autocad

revit

You possess a Professional Engineer (PE) license
You have a LEED certification / experience
Ability to travel
Good communication skills, combined with organizational skills, the ability to plan, balance and prioritize work
You have a minimum of 8 years design experience
You have an excellent work ethic and attitude
You have knowledge and understanding of codes, standards, and design guidelines
You have knowledge in the design of HVAC systems
Ability to lead a team and work as a team
You have a Bachelor’s degree in Mechanical Engineering
Proficiency in Auto CAD, Revit, and MS Office

Benefits

5 weeks of paid time off and company holidays
401(k) with company match
Wellness programs and employee assistance resources
Medical, dental, and vision insurance
Professional development support

Training + Development

Information not given or found

Interview process

Information not given or found

Visa Sponsorship

Information not given or found

Security clearance

Information not given or found

Company

Overview

$20 billion

Annual Construction Value

Generates $20 billion in annual construction value across 17,300+ projects each year.

95 offices

Global Presence

Expanded to over 95 offices delivering high-impact, complex projects worldwide.

#9

MEP Giants Ranking

Recognized as #9 in the MEP Giants ranking among top design firms.

25 firms

Acquisitions

Acquired over 25 firms since 2019 to bolster sector reach.

Firm has grown through strategic mergers and innovation in engineering and technical consulting.
Excels in designing built environments through MEP, structural, civil—and in energy via renewables, decarbonization, and resiliency.
Stacks process design and integration expertise to serve pharmaceutical, food & beverage, utilities, and industrial clients.
Offers advanced solutions including litigation support, digital twins, envelope testing, and automation controls.
Work spans commercial, corporate, hospitality, healthcare, campuses, critical environments, and large infrastructure projects.
Impacted nearly a billion square feet of building space annually and prides itself on seamless delivery—one design, one team.

Culture + Values

Recognize that we are all owners with direct influence on the success of our company.
Do what is right, setting the standard for performance, integrity, and professionalism.
Provide positive energy, passion, and commitment to everything we do.
Embrace positive change and challenge the status quo.
Encourage the growth of our owners through training and opportunities for leadership.
Ensure the continuity of the firm through succession planning.
Contribute meaningfully to our communities.
Be open, direct, positive, and respectful to everyone.
Promote teamwork through commitment and trust.
Constructively communicate intentions and expectations.
Have fun together.
Recognize and reward accomplishments.
Manage performance fairly and consistently.
Attract and retain outstanding employee owners.
Set and achieve ambitious goals.
Be accountable for our actions.
Properly plan and execute all projects to ensure a reasonable profit.
Achieve life cycle cost savings for clients through resource conservation and sustainable design.
Tailor designs to each project, balancing project cost, maintenance, and performance.
Continuously improve our delivery to customers.
Serve each client as though they’re our only client.
Maintain a financially healthy firm.
Capitalize on opportunities to strengthen the firm.

Environment + Sustainability

100% Offset

Operational Energy

In-house services offset 100% of operational energy through design.

~238,000 Homes

Solar Array Power

Engineered one of North America’s largest DoD solar arrays.

800k Metric Tons

GHG Savings

Annual emissions avoided by solar array.

800 Panels

PV System

Flagship Walgreens store features an 800-panel PV system.

In‑house net zero architecture targets: offset 100% of operational energy through design services.
Delivered flagship zero‑energy Walgreens store with geothermal, LED/daylight controls, LEED Platinum, Green Globes, Living Building Challenge, ASHRAE Technology Award.
Support clients with climate‑related master planning (e.g., Princeton’s 180‑building conversion to low‑temp hot water system toward net zero by 2046).
Designed CHP system for pharma plant aiming carbon neutrality by 2025 and carbon‑negative by 2030.
Execute energy audits, resource‑efficiency plans, decarbonization consulting, energy modeling, lifecycle cost analysis, district energy systems, microgrids, geothermal/renewables.
Firm offers full net‑zero and sustainability consulting services including LEED, WELL, Fitwel, SITES, Parksmart, Living Building Challenge.
Publicly announced net zero service offerings; no stated corporate net zero target date.

Inclusion & Diversity

Fosters a diverse, equitable, and inclusive environment as part of its ESG model.
Employee‑owner model: attracts and retains outstanding employee owners through fair performance management and recognition.
Leadership is committed to building a broader talent pool representing a wider spectrum of backgrounds and experiences.
No gender‑specific workforce statistics are available in public materials.

Articles

Our Services

Careers

Projects

Role

Description

load calculations

hvac design

equipment selection

qa/qc

construction admin

project lead

Perform Load/Energy calculations with software such as Trace 700, IES and similar programs
Assist in the procurement of new work; including the development of client relations and participation in project interview
Prepare detailed design documents, reports, and studies
Coordinate work with other disciplines
Provide construction administration services
Write/edit project specifications
Lead project teams and serve as the primary contact for clients
Develop HVAC system designs of a given project based on scope of work and/or client RFPs
Conduct existing building surveys and documentation of existing HVAC systems
Perform QA/QC of design work
Oversee and provide guidance to junior engineers
Provide engineering design, evaluation, and planning of mechanical systems for a variety of market types
Code compliance research
Develop system design calculations and selection of equipment for use in buildings

Requirements

pe license

leed

mechanical eng

hvac

autocad

revit

You possess a Professional Engineer (PE) license
You have a LEED certification / experience
Ability to travel
Good communication skills, combined with organizational skills, the ability to plan, balance and prioritize work
You have a minimum of 8 years design experience
You have an excellent work ethic and attitude
You have knowledge and understanding of codes, standards, and design guidelines
You have knowledge in the design of HVAC systems
Ability to lead a team and work as a team
You have a Bachelor’s degree in Mechanical Engineering
Proficiency in Auto CAD, Revit, and MS Office

Benefits

5 weeks of paid time off and company holidays
401(k) with company match
Wellness programs and employee assistance resources
Medical, dental, and vision insurance
Professional development support

Training + Development

Information not given or found

Interview process

Information not given or found

Visa Sponsorship

Information not given or found

Security clearance

Information not given or found

Company

Overview

$20 billion

Annual Construction Value

Generates $20 billion in annual construction value across 17,300+ projects each year.

95 offices

Global Presence

Expanded to over 95 offices delivering high-impact, complex projects worldwide.

#9

MEP Giants Ranking

Recognized as #9 in the MEP Giants ranking among top design firms.

25 firms

Acquisitions

Acquired over 25 firms since 2019 to bolster sector reach.

Firm has grown through strategic mergers and innovation in engineering and technical consulting.
Excels in designing built environments through MEP, structural, civil—and in energy via renewables, decarbonization, and resiliency.
Stacks process design and integration expertise to serve pharmaceutical, food & beverage, utilities, and industrial clients.
Offers advanced solutions including litigation support, digital twins, envelope testing, and automation controls.
Work spans commercial, corporate, hospitality, healthcare, campuses, critical environments, and large infrastructure projects.
Impacted nearly a billion square feet of building space annually and prides itself on seamless delivery—one design, one team.

Culture + Values

Recognize that we are all owners with direct influence on the success of our company.
Do what is right, setting the standard for performance, integrity, and professionalism.
Provide positive energy, passion, and commitment to everything we do.
Embrace positive change and challenge the status quo.
Encourage the growth of our owners through training and opportunities for leadership.
Ensure the continuity of the firm through succession planning.
Contribute meaningfully to our communities.
Be open, direct, positive, and respectful to everyone.
Promote teamwork through commitment and trust.
Constructively communicate intentions and expectations.
Have fun together.
Recognize and reward accomplishments.
Manage performance fairly and consistently.
Attract and retain outstanding employee owners.
Set and achieve ambitious goals.
Be accountable for our actions.
Properly plan and execute all projects to ensure a reasonable profit.
Achieve life cycle cost savings for clients through resource conservation and sustainable design.
Tailor designs to each project, balancing project cost, maintenance, and performance.
Continuously improve our delivery to customers.
Serve each client as though they’re our only client.
Maintain a financially healthy firm.
Capitalize on opportunities to strengthen the firm.

Environment + Sustainability

100% Offset

Operational Energy

In-house services offset 100% of operational energy through design.

~238,000 Homes

Solar Array Power

Engineered one of North America’s largest DoD solar arrays.

800k Metric Tons

GHG Savings

Annual emissions avoided by solar array.

800 Panels

PV System

Flagship Walgreens store features an 800-panel PV system.

In‑house net zero architecture targets: offset 100% of operational energy through design services.
Delivered flagship zero‑energy Walgreens store with geothermal, LED/daylight controls, LEED Platinum, Green Globes, Living Building Challenge, ASHRAE Technology Award.
Support clients with climate‑related master planning (e.g., Princeton’s 180‑building conversion to low‑temp hot water system toward net zero by 2046).
Designed CHP system for pharma plant aiming carbon neutrality by 2025 and carbon‑negative by 2030.
Execute energy audits, resource‑efficiency plans, decarbonization consulting, energy modeling, lifecycle cost analysis, district energy systems, microgrids, geothermal/renewables.
Firm offers full net‑zero and sustainability consulting services including LEED, WELL, Fitwel, SITES, Parksmart, Living Building Challenge.
Publicly announced net zero service offerings; no stated corporate net zero target date.

Inclusion & Diversity

Fosters a diverse, equitable, and inclusive environment as part of its ESG model.
Employee‑owner model: attracts and retains outstanding employee owners through fair performance management and recognition.
Leadership is committed to building a broader talent pool representing a wider spectrum of backgrounds and experiences.
No gender‑specific workforce statistics are available in public materials.

Articles

Our Services

Careers

Projects