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Salary
$85k – $105k per year
Location
In office (San Luis Obispo)
Seniority
Junior · 2+ years exp
Visa
H-1B filings in 12 months: 18 · green card filings: 2
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 12, 2026. First seen by Alion on Nov 10, 2026. Salas O'Brien scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Salas O'Brien is an employee-owned engineering firm headquartered in Irvine, California. It provides mechanical, electrical and plumbing engineering, structural design, commissioning, energy and sustainability consulting and technology design for buildings and infrastructure. Its clients include data centres, healthcare, education, government, industrial and clean energy facilities, served from offices across the United States. It hires electrical and project engineers, BIM coordinators, co-op students and fabrication engineers.

Mechanical Engineer

At Salas O’Brien we tell our clients that we’re engineered for impact. This passion for making a difference applies just as much to our team as it does to our projects. That’s why we’re committed to living our values every day: inspiring, achieving, and connecting as shared owners of our success with a focus on a sustainable future.

Building for the long-term means that all of our team members can expect to work on amazing projects with a people-first approach to problem solving. It also means that each member of our team has truly limitless potential to build a unique, meaningful, and high-impact career-and they’ll receive great total rewards along the way.

About Us:

Founded in 1975, Salas O’Brien is an employee-owned engineering and professional services firm focused on achieving impact for our clients, our team, and the world. We know that tomorrow’s requirements are today’s opportunities, and we are here to design lasting solutions for pressing challenges.

We work across a variety of industries providing integrated engineering and consulting services. Our specialized experience includes design for data centers, healthcare, science and technology, high-rise buildings, clean energy, education, and other building types as well as structural and building sciences, infrastructure asset management, advanced robotics, and more.

Our technical expertise is paired with an exceptional team of business development, human resources, finance and accounting, information technology, and marketing professionals, all of whom play a key role in bringing our commitments to life every day.

Job Summary:

Our office in San Luis Obispo, CA is looking for a Mechanical Engineer to work in a fast-paced multi-discipline team environment with primary responsibility to engineer and design projects for Data Centers, Commercial, Telecom, Education, and other highly sophisticated facilities.

Responsibilities:

  • Develop HVAC system designs of a given project based on scope of work and/or client RFPs
  • Provide engineering design, evaluation, and planning of mechanical systems for a variety of market types
  • Conduct existing building surveys and documentation of existing HVAC systems
  • Perform Load/Energy calculations with a variety of software as dictated by Client standards.
  • Write/edit project specifications
  • Develop system design calculations and selection of equipment for use in buildings
  • Prepare detailed design documents, reports, and studies
  • Complete code compliance research
  • Collaborate with teammates from other design disciplines to deliver a well-coordinated project.
  • Provide construction administration services
  • Perform QA/QC of design work

Skills:

  • Proficiency in using engineering tools and software including Autodesk software
  • Flexibility and willingness to work on various projects and tasks, embracing new challenges with enthusiasm.
  • Demonstrated ability to work independently and take initiative to drive projects forward. Ability to work collaboratively in a team setting.
  • Ability to work on multiple projects in a fast-paced environment.
  • Desire to learn and grow.
  • Excellent organizational skills and attention to detail
  • Excellent written and verbal communication skills
  • Experience with AutoCAD and Revit
  • Proficiency in MS Office
  • Ability to travel

Qualifications:

  • Bachelor's or Master's degree in Mechanical Engineering.
  • 2-5 years experience in Mechanical Engineering.
  • Registration as EIT or PE preferred.

Location: San Luis Obispo, CA

Travel: Up to 40% to mainly local client sites

Compensation & Benefits:

The expected base salary range for this role is $85,000 to $105,000 USD per year. Actual compensation will be determined based on a number of factors including skills, experience, qualifications, and location.

This role is also eligible for performance-based bonuses and a comprehensive U.S. based benefits package, including:

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

For more information, visit our full benefits overview here.

Equal Opportunity Employment Statement

Salas O’Brien provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, colour, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state/provincial, or local laws. Salas O’Brien will accommodate the disability-related needs of applicants as required by law.

Third-Party Agency Notice

Salas O’Brien does not accept unsolicited resumes from external recruiters or agencies. We only work with approved partners engaged directly by our Talent Acquisition team for specific searches. Unsolicited submissions will not be eligible for placement fees.

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