P2S stands as a provider of professional engineering services to a broad range of markets, including higher education, healthcare, ports/harbors, industrial, entertainment, commercial, laboratories, municipal, and federal sectors. Our specialties include electrical, mechanical, plumbing, fire protection, and technology integration. Our offered services range from engineering and commissioning to construction management. With over 300 dedicated employees, P2S is an internationally recognized leader in many of the key markets we serve. We provide a blend of innovation and technical excellence in delivering green solutions that enhance and sustain the built, natural, and social environments. Currently, we have offices in Long Beach, Seattle, Irvine, San Diego, Los Angeles, and San Jose.

Join our award-winning team. Recognized as the Best Place to Work for over a decade, P2S offers a collaborative, innovative environment where your contributions make a real impact. 

Employment Type: Full-time

Work Schedule: Hybrid — 3 days in-office, 2 days remote

Salary Range: $148,000-180,000, based on experience

Career Level: Senior

Location: Seattle, WA , Long Beach CA, Irvine CA, San Diego, CA 

 

Position Summary

We are seeking a Senior Mechanical Engineer with extensive experience in HVAC system design to join our engineering team. The ideal candidate will have 10+ years of experience in the design and coordination of HVAC systems for commercial, institutional, and industrial buildings. This position involves leading mechanical design efforts, managing projects from concept through construction, and collaborating closely with architects, owners, and other engineering disciplines to deliver high-quality, coordinated designs. As a Senior Mechanical Engineer, you will support both pre‑design and design phases on small to medium‑sized projects, which may include a mix of commercial and institutional buildings or be dedicated exclusively to healthcare facilities. The Senior Mechanical Engineer will also mentor junior staff and contribute to business development and process improvement initiatives.

 

Key Responsibilities

• Lead and perform HVAC system design, including load calculations, equipment selection, and ductwork/hydronic system layout.
• Prepare and review drawings, specifications, and technical documentation in accordance with project and code requirements.
• Coordinate designs with architectural, structural, electrical, and plumbing disciplines to ensure fully integrated building systems.
• Conduct field surveys, evaluate existing mechanical systems, and develop retrofit or upgrade solutions.
• Support project development from concept design through construction administration, including responding to RFIs and reviewing submittals.
• Collaborate with clients and project managers to define scope, schedule, and budgets for mechanical portions of projects.
• Serve as the primary client contact for project communication, technical discussions, and scope management.
• Support business development efforts by assisting with proposals, fee estimates, and presentations.
• Mentor junior engineers and designers, providing technical guidance and quality assurance reviews.
• Stay current with applicable building codes and industry standards.
• Participate in internal design reviews, QA/QC processes, and project closeout documentation.
• Stay current with ASHRAE standards, building codes, and emerging technologies relevant to mechanical system design.

 

Qualifications

• Bachelor’s Degree in Mechanical Engineering.
• Professional Engineer (PE) license or ability to obtain within 12 months (required).
• 10+ years of progressively responsible experience in HVAC design within a consulting engineering or design-build environment.
• Proficiency in Revit, AutoCAD, and HVAC load calculation software (e.g., Carrier HAP, Trane TRACE).
• Strong understanding of HVAC system types (VAV, DOAS, hydronic systems, chilled/hot water plants, VRF, etc.).
• Familiarity with energy modeling, sustainability, and LEED/ASHRAE 90.1 compliance (required).
• Excellent written and verbal communication skills; ability to lead technical discussions with clients and project teams.
• Demonstrated ability to manage multiple projects and meet deadlines in a collaborative environment.
• Project Management experience (preferred).

 

Additional Preferred Skills

• Strong Mechanical/HVAC design capability in healthcare, federal, higher education, aviation, or waterfront-related projects.
• Experience and knowledge of the HCAI codes and standards, FGI Guidelines, and NFPA-99.
• Knowledge of specification writing and Division 23 standards.
• Basic understanding of building automation systems and controls integration.
• Field experience with commissioning or construction administration.

 

#LI-CC1 #Li-Hybrid 

What sets P2S apart?
For 15 years in a row, P2S has been regarded as a “Best Place to Work” by our employees. Why? Because we value satisfied employees just as much as satisfied clients. With competitive benefits, flexible work schedules, paid training/professional memberships, and more. - we aim to attract the best talent and keep them here

Learn more about what it means to work at P2S: https://www.p2sinc.com/join

P2S is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

About Legence
Legence (Nasdaq: LGN) is a leading provider of engineering, consulting, installation, and maintenance services for mission-critical systems in buildings. The company specializes in designing, fabricating, and installing complex HVAC, process piping, and other mechanical, electrical, and plumbing (MEP) systems—enhancing energy efficiency, reliability, and sustainability in new and existing facilities. Legence also delivers long-term performance through strategic upgrades and holistic solutions. Serving some of the world’s most technically demanding sectors, Legence counts over 60% of the Nasdaq-100 Index among its clients.

Benefits
401(k) Plan with Company Match: Currently match contributions dollar-for-dollar up to 4% of eligible pay; immediate vesting.
Health & Welfare Benefits: Employer provided medical, dental, vision, prescription drug, Employee Assistance Program and accident & illness coverage.
Life and Disability Insurance: Employer provided basic life insurance and AD&D valued at 50K coverage amount with the option for voluntary buy-up for additional coverage.
Time Off: Flexible non-accrual vacation; company holidays per policy. (For California employees, this is separate from California paid sick leave, if applicable.)
Expenses: Business travel and related expenses reimbursed per company policy.
Discount Program: Company-sponsored discount program with savings on multiple lifestyle categories.

Reasonable Accommodations
If you need assistance or accommodations during the application or interview process, please contact us at ta@wearelegence.com or your dedicated recruiter with the job title and requisition number.

Third-Party Recruiting Disclaimer
Legence and its affiliates do not accept unsolicited resumes from agencies; any such submissions without a prior signed agreement authorized by Legence Holdings LLC's CHRO or Director of Talent Acquisition will not incur fees and are considered property of Legence.

Pay Disclosure & Considerations
Where pay ranges are indicated, please note that a successful candidate’s exact pay will be determined based relevant job-related factors, including any of the following: candidate’s experience, skills, and qualifications, as well as geographic and market considerations.  We are committed to ensuring fair and competitive compensation for all employees and comply with all applicable salary transparency laws. 

Equal Employment Opportunity Employer
Legence and its affiliate companies are proud to be an equal opportunity workplace. We are committed to equal employment opportunity regardless of race, color, religion, sex (including pregnancy, gender identity, and sexual orientation), marital or familial status, national origin, age, disability, genetic information (including family medical history), political affiliation, military service, other non-merit-based factors, and any other characteristic protected under applicable local, state or federal laws and regulations.
EEO is the Law 

Provides engineering and sustainability services for mission-critical building systems