Description This opportunity is for a full-time **HVAC Mechanical Engineer** based in Fullerton, CA, supporting AC Install Department. The role is central to the design/build process for commercial and industrial HVAC systems, with a focus on energy efficiency, code compliance, and system performance. Key Areas of Focus - HVAC System Design**: Perform heat load calculations, duct and pipe sizing, and layout planning using EnergyPro software. - Title 24 Compliance**: Generate reports to ensure systems meet California’s energy efficiency standards. - Mechanical Drawings**: Collaborate with in-house CAD drafters to prepare construction-ready documents. - Code Compliance**: Apply knowledge of California building and mechanical codes and ASHRAE standards. - Vendor Coordination**: Work with HVAC equipment suppliers to gather technical specifications. - Field Work**: Conduct site visits to gather data for system design and validation. Daily Responsibilities: - Perform HVAC system calculations, layout planning, and Title 24 compliance using EnergyPro software. - Support project engineers with technical input throughout the proposal and construction phases. - Review and refine mechanical drawings for permitting and construction in collaboration with CAD drafters. - Conduct site job walks to gather field data and assess design feasibility. - Coordinate with internal teams and vendors to resolve design challenges and align on technical requirements. Design HVAC systems for commercial and light industrial projects. Perform heat load calculations, duct/pipe sizing, and layout planning. Conduct job walks (~70% field work), produce permit-ready drawings, and collaborate with engineering manager and president. Service territory is primarily Southern California. Performance is evaluated on technical integrity, project completion, and contribution. Join a family-owned, growing HVAC engineering team focused on commercial and industrial design-build projects for clients in food manufacturing, distribution, and retail. Key responsibilities include full-cycle HVAC system design (schematic through permit-ready drawings), equipment selection and sizing, Title 24 compliance documentation, and collaboration with CAD drafters and field teams. The role involves significant field work (approximately 70% field, 30% office), including attending job walks for design validation and working closely with installers, pipe fitters, and welders. Projects are primarily ground-up construction, with systems including chillers, boilers, racks, ammonia systems, and ventilation. Most common HVAC systems: Boilers, chillers, ammonia systems, and related refrigeration systems are frequently installed and designed. The engineer will ensure compliance with ASHRAE standards and California mechanical/building codes, and will interact with the engineering manager and company president. OSHA 30 training is required (provided if not already held), and the primary service territory is Southern California. Success in this role directly impacts the company’s ability to fulfill new client projects, drive revenue, and support ongoing growth. The HVAC engineer role focuses on commercial and light industrial HVAC projects, with responsibilities including field work (about 70%), office work (about 30%), project design, equipment selection and sizing, blueprint reading, and working closely with installers, pipe fitters, welders, and project managers. Projects range from small sites (like movie theaters) to large-scale refrigeration facilities (e.g., 300-yard refrigerators for food distribution), primarily in Southern California. The role has a direct impact on the company’s ability to fulfill new client work and overall business growth. Skills hvac, systems design, energy pro, mechanical engineering, Design, Mechanical, Engineering, Autocad, design calculations, hvac installation, building codes, vendor relationship, load analysis, heat loss calculation software, drawing, field data, technical documentation, indoor air quality, energy efficiency, ventilation, refrigeration system, system testing, cooling systems, safety engineering, Quality assurance, Support, Validation, mechanical design Top Skills Details hvac,systems design,energy pro,mechanical engineering Additional Skills & Qualifications Required Qualifications: - Minimum 5 years of HVAC industry experience. - Proficiency in EnergyPro software. - Strong knowledge of HVAC system design, ASHRAE standards, and California mechanical/building codes. - Bachelor’s degree in Mechanical Engineering preferred. - 1+ year experience with mechanical engineering and EnergyPro software. Ideal Background : HVAC design engineering in commercial/non-residential projects Experience with permitting and compliance documentation Family owned Can double salary in 1 year Additional Skills & Qualifications EnergyPro (preferred) PE license in CA (preferred but not required) OSHA 30 (provided if not held) Experience with boilers, chillers, racks, ammonia systems Familiarity with Title 24 and ASHRAE standards Additional Skills and Qualifications PE license is a strong plus but not required. EnergyPro software experience is a plus. OSHA 30 certification is required (company provides training if needed). Experience with boilers, chillers, ammonia systems, and government or Title 24 compliance is beneficial. Prior experience in construction, welding, or related trades is valued. Familiarity with RSD suppliers and large-scale refrigeration projects is helpful. The main competitors for talent are companies such as Ontario, TDI, Lineage, and Numerical; candidates from these firms are highly valued. Companies like Husman Corporation and AC Pro are not considered direct competitors but are seen as good sources for candidates due to their relevant industry experience. Experience Level Expert Level Pay and Benefits The pay range for this position is $70000.00 - $100000.00/yr. 401(k) matchingDental insuranceHealth insuranceLife insurancePaid time offVision insurance Workplace Type This is a fully onsite position in Fullerton,CA. Application Deadline This position is anticipated to close on Aug 22, 2025. About Actalent Actalent is a global leader in engineering and sciences services and talent solutions. We help visionary companies advance their engineering and science initiatives through access to specialized experts who drive scale, innovation and speed to market. With a network of almost 30,000 consultants and more than 4,500 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the Fortune 500. The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing due to a disability, please email actalentaccommodation@actalentservices.com (%20actalentaccommodation@actalentservices.com) for other accommodation options.