Senior Mechanical Engineer

Job Summary

The Senior Mechanical Engineer will combine deep technical plumbing expertise with leadership responsibilities in growing our mechanical team. This role balances hands‑on project involvement with business development, client engagement, and mentoring of engineering staff. The successful candidate will drive innovation in healthcare mechanical design, lead project delivery, and contribute to the strategic growth of our healthcare portfolio.

• Provide a superior level of technical services to our clients for their projects and technical support requirements, providing technical and project control direction, and mentoring to other engineers and designers.
• Provide engineering design, evaluation, and planning of mechanical systems for healthcare, life sciences, higher education, and data center market types.
• Identify, formulate, and initiate solutions to complex problems requiring multiple‑discipline involvement, along with discipline‑specific analytical tools.
• Perform work activities on an individual basis or within a project team with limited to no need for supervision.
• Coordinate work activities that affect the quality of project control, scope development, proposals, engineering & design, document control, inspection & testing, and commissioning.
• Review and check the work of others. Effectively apply self‑checking to their work.
• Identify and resolve complex problems that involve the use of conflicting or incomplete information.
• Advanced data gathering and site assessments at customers’ facilities.
• Review and editing of project specifications.
• High‑level and expert knowledge of California code requirements, including California Building Code (CBC) and HCAI‑specific requirements.
• Develop bidding documents for process equipment, fabrication, and construction.
• Ability to review Revit production models and work interactively with support staff in the development of project deliverables.
• This position is intended to provide guidance and direction for support staff.
• Oversee preparation of technical drawings and bid documents.
• Lead multidisciplinary project teams through all phases of design and construction.
• Serve as the primary client contact for plumbing design within projects.
• Perform QA/QC reviews of design work to ensure quality and compliance with applicable codes and standards.

• Client engagement and business development experience.
• Advanced expertise with Autodesk software (Revit, Navisworks).
• Ability to perform and review complex HVAC load calculations utilizing Energy Soft and Trace energy modeling software.
• Ability to comprehend, contribute to, and carry out strategies to manage our relationships with customers, suppliers, and alliance team members.
• Experience with leading engineering and design teams.
• Demonstrated ability to work independently and take initiative to drive projects forward.

• Collaborate with project managers and support staff to deliver projects on schedule and within scope.
• Manage proposal development and provide technical input for projects as needed.
• Participate in knowledge sharing and continuous improvement of design standards and best practices.
• Contribute to a positive team environment through effective communication and management.
• Continue to build technical expertise in specialized mechanical systems.

• Bachelor’s Degree in Mechanical Engineering.
• 10+ years of experience engineering and managing mechanical systems projects from start to finish for the built environment.
• Client engagement and business development experience.
• Registration as P.E. preferred.

Tustin, CA (on‑site with remote Fridays).

Up to 30%.

Health and welfare benefits include medical, dental, vision, and basic life insurance; a 401(k) plan; and the ability to purchase company stock at a discount. Additional offerings are available through U.S. and Canadian PTO plans, 10 paid holidays, and paid leave programs for military service and new parents. Certain roles may also be eligible for merit increases, performance discretionary bonus, and other stock‑related rewards.

The base salary range for this position is $140,000 to $200,000. Within the range, individual pay is determined by work location and additional factors, including job‑related skills, experience, and relevant education or training.

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.