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Heat Load Calculation Jobs in California (NOW HIRING)

Leidos

Senior Mechanical Engineer

El Segundo, CA · On-site

$120K - $130K/yr

Provide verified heat load calculations including: heating peak, cooling peak, ventilation and process load calculation used for system sizing, and final calculation for energy compliance. * Analyze ...

Leidos

Senior Mechanical Engineer

El Segundo, CA

$120K - $130K/yr

Provide verified heat load calculations including: heating peak, cooling peak, ventilation and process load calculation used for system sizing, and final calculation for energy compliance. * Analyze ...

Tri-Pacific Heating & Air Conditioning, LP

Be Seen First

HVAC Residential Installer

Fullerton, CA · On-site

$25 - $46/hr

... of Advanced heat load/loss calculations · Knowledge of Advanced cooling load calculation · Safety Awareness - Ability to identify and correct conditions that affect employee safety Company ...

Stantec

Mechanical Engineer

Pasadena, CA · On-site

$126K - $189K/yr

Develop HVAC calculations including building cooling and heating load calculations, air ... heat transfer. * Experience in designing HVAC and Plumbing systems. Fire Protection design is a ...

Cushman & Wakefield

Journeyman Electrician

Santa Clara, CA · On-site

$32.50 - $44.75/hr

... load calculations for branch circuits, feeders, panels, transformers, and new equipment ... disposals, heat pumps, and similar equipment. • Coordinate and execute repairs to electrical ...

IMEG

Mechanical Project Engineer 1

Ontario, CA

$115K - $140K/yr

... heat transfer and fluid mechanics relating to mechanical design in HVAC, plumbing and fire ... load calculation software Excellent communication and interpersonal skills Ability to work ...

IMEG

Mechanical Project Engineer 1

Ontario, CA · On-site

$115K - $140K/yr

... heat transfer and fluid mechanics relating to mechanical design in HVAC, plumbing and fire ... C load calculation software • Excellent communication and interpersonal skills • Ability to ...

Bellows Plumbing, Heating & Air

HVAC Sales

Santa Cruz, CA · On-site

$150K - $300K/yr

With the 2026 Title 24 standards making heat pumps the prescriptive default and the switch to new ... Perform load calculations (Manual J/S/D) and job site evaluations to ensure perfect equipment ...

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Heat Load Calculation information

What is a Heat Load Calculation job?

A Heat Load Calculation job involves determining the amount of heating or cooling needed to maintain a comfortable indoor environment in a building. This process considers factors such as building size, insulation, occupancy, equipment heat output, and external weather conditions. Engineers and HVAC professionals use these calculations to design efficient heating and cooling systems, ensuring optimal energy use and comfort. Proper heat load calculations help prevent system oversizing or undersizing, which can impact efficiency and costs.

What are the typical daily responsibilities of a professional specializing in Heat Load Calculation?

Professionals in Heat Load Calculation spend their days analyzing architectural drawings, assessing building occupancy and materials, and using software tools to estimate the heating and cooling loads required for various spaces. They collaborate closely with architects, HVAC engineers, and project managers to develop accurate and efficient system designs. The role often involves reviewing project specifications, preparing technical reports, and making recommendations for suitable HVAC equipment. By performing these tasks, they ensure climate control systems are both cost-effective and compliant with industry standards.

What are the key skills and qualifications needed to thrive in the Heat Load Calculation position, and why are they important?

To thrive in Heat Load Calculation, you need a strong background in mechanical or HVAC engineering, along with proficiency in thermodynamics and load estimation methods. Expertise in using specialized software such as HAP (Hourly Analysis Program), Carrier E20-II, or TRACE 700, as well as familiarity with relevant certifications or codes (like ASHRAE standards), is often required. Attention to detail, problem-solving skills, and effective communication are important soft skills for this role. These qualifications are crucial to accurately assess and design climate control systems for buildings, ensuring energy efficiency and occupant comfort.

What are the most commonly searched types of Heat Load Calculation jobs in California? The most popular types of Heat Load Calculation jobs in California are:
What are popular job titles related to Heat Load Calculation jobs in California? For Heat Load Calculation jobs in California, the most frequently searched job titles are:
What job categories do people searching Heat Load Calculation jobs in California look for? The top searched job categories for Heat Load Calculation jobs in California are:
Heat Load Calculation jobs near you
Infographic showing various Heat Load Calculation job openings in California as of July 2026, with employment types broken down into 100% Full Time. Highlights an 75% In-person, and 25% Hybrid job distribution.
Senior Mechanical Engineer

Senior Mechanical Engineer

Leidos

El Segundo, CA • On-site

$120K - $130K/yr

Full-time

Posted 11 days ago

Leidos rating

8.4

Company rating: 8.4 out of 10

Based on 149 frontline employees who took The Breakroom Quiz

67th of 488 rated business services

Job description

Looking for an opportunity to make an impact?
At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.
If this sounds like the kind of environment where you can thrive, keep reading!
The Digital Modernization Sector brings together our digital transformation and IT programs, allowing us to better serve our customers through scale and repeatability.
(Group Profile/Link to Group page) - https://www.leidos.com/capabilities/digital-modernization
Your greatest work is ahead!
The NISC IV program at Leidos is seeking a Senior Mechanical Engineer to work in the Federal Aviation Administration (FAA) Regional Office in El Segundo, CA which is in the Los Angeles area.
The Mechanical Engineer will provide engineering support to the FAA Los Angeles Enroute Engineering Center which includes project management and project planning for various Air Route Traffic Control Center construction and upgrade modernization projects.
Specific duties for this position include:
  • Provide expertise in all aspects of the complete project management lifecycle.
  • Provide Mechanical Engineering Subject Matter expertise (SME) support by overseeing the feasibility, design, planning, and installation of Heating, Ventilation and Air-Conditioning, and Environmental Direct Digital Control Systems.
  • Provide Mechanical Engineering SME ) support through dynamic participation in team reviews of design and scope, and assembly of the design package. In addition, provide status reports on site project progress, status reports on schedule updates, participate in Planning and Requirements Group (PRG) matrix meetings, and guide Operational Risk Management and Safety meetings.
  • Provide verified heat load calculations including: heating peak, cooling peak, ventilation and process load calculation used for system sizing, and final calculation for energy compliance.
  • Analyze and review existing engineering drawings and documents and provide observations on accuracy and completeness, and recommendations for improvement.
  • Provide Computer-Aided Drafting and Design (CADD) drawings using AutoCAD and MasterSpec in conformance with FAA standards.
  • Provide/evaluate system and equipment design package requirements.
  • Assist in preparing Draft project scope agreements and project schedules.
  • Prepare engineering risk assessments, and provide recommendations and proposals of actions or improvements to mitigate potential risks resulting from site, facility, and project/program changes.

Please Note: Must be able to work onsite in El Segundo, CA. The position has partial telework potential for part of the work week with manager's approval.
Required Qualifications:
  • Bachelor's degree and 8+ years of prior relevant experience OR Master's degree with 4+ years of prior relevant experience. Additional years of relevant experience maybe considered/accepted in lieu of degree.
  • 8 years of applicable mechanical engineering experience including project management and design of building mechanical systems.
  • Experience with ductless split systems, heat recovery systems, residential type split systems, furnace, direct expansion cooling coils, unitary roof top package units, variable air volume systems, air handling units, chillers, boilers, vehicle exhaust systems and other heating, cooling, ventilation, air distribution, pumping, hydronic piping, and indoor air quality systems.
  • Performed and verified heat load calculations which include: heating peak, cooling peak, ventilation and process load calculation used for system sizing and final calculation for energy compliance.
  • Prepared design development and construction drawings which include: initial schematic, design development and final construction drawings for plan check submittal.
  • Ability to obtain a Public Trust Security Clearance Suitability (To be eligible for Public Trust Security Clearance, one must be either a U.S. Citizen OR a U.S. Permanent Resident/Green Card holder who has resided in the U.S.A for the past 3 years of the past 5 years consecutively with no breaks).

Desired Qualifications:
  • Familiarity with FAA and the National Airspace System (NAS) is a plus but not necessary.
  • Professional Mechanical Engineer registration is a plus but not absolutely necessary.

Please Note: The program budget salary for this role could fall anywhere between high $120,000 to high $130,000 with a slight wiggle room (no guarantees) based on relevant experience and assessment. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
Leidos is growing! Connect with us on LinkedIn and Facebook.
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.
Original Posting:
July 13, 2026
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range:
Pay Range $107,900.00 - $195,050.00
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

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About Leidos

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At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Reston, VA, US

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