Senior Mechanical Engineer - P2S

Therma; Irvine (CA); Hybrid; USD 125,000 - 183,000; Full time

Benefits offered by this job

13 Paid holidays a year

Employer-paid Group Life Insurance

Supplemental Insurance Plans (Accident

Tuition & Training Assistance

401(k) with immediate vesting and up‑t

Job summary

P2S, a Legence company and award-winning engineering firm, is seeking a Senior Mechanical Engineer for Seattle, WA. You will lead HVAC and plumbing design across higher education, energy and public-sector projects and supervise multi-disciplinary teams.

Role includes managing budgets, schedules, design writing, and client presentations, with a focus on delivering sustainable, code-compliant solutions. Hybrid schedule: 3 days in-office / 2 remote; PE license required; 8+ years of experience

Qualifications

• Registered Professional Engineer (PE License)
• 8+ years of engineering design and project management experience
• Experience with all aspects of HVAC and Plumbing Design
• Experience with design-build projects
• Experience performing energy studies, audits, and analysis
• Knowledge of Clean Buildings Law HB1390 and Climate Action Plan
• Knowledge of state and local codes
• Ability to present complex concepts to clients and staff
• Bachelor’s in mechanical engineering; LEED accreditation a plus

Responsibilities

• Administer all phases of projects from proposal through construction completion
• Budget, schedule, plan, and write design specifications
• Direct and monitor multiple projects with cross-disciplinary teams
• Focus on higher education, ports, and energy projects
• Lead client communications and presentations

Skills

PE License

8+ years experience

HVAC Design

Plumbing Design

Design-Build

Energy Audits

Building Codes

Client Presentations

Education

Bachelor’s in Mechanical Engineering

Job description

5000 E Spring St 8th floor, Long Beach, CA 90815, USA •

18575 Jamboree Rd #100, Irvine, CA 92612, USA •

1201 3rd Ave #3500, Seattle, WA 98101, USA

Job Description

Posted Tuesday, October 7, 2025 at 10:00 AM

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.

Are you a Senior Level Mechanical Engineer with 8+ years of experience looking to grow your career? P2S is an award-winning engineering firm that has been named a "Best Place to Work" for the past 15 years.

We have an open position for a Senior Level Mechanical Engineer which is to be based in Seattle, WA - you could be a perfect fit.

Employment Type: Full-time

Hybrid Schedule: 3 days In-office / 2 Remote

Salary: $124,800-$183,040 (dependent on experience)

Office: Seattle, WA

Level: Mid to Senior

General Responsibilities:

As a competent Registered Professional Engineer, the candidate performs work involving the application of all conventional aspects of HVAC and plumbing design engineering and supervision of multi-disciplinary teams of engineers and designers. The candidate will be focused on higher education, ports, and energy projects. The candidate is responsible for administering all phases of projects from proposal development through construction completion. The candidate has primary responsibility for budgeting, scheduling, planning, design, and specification writing on a given project with the authority to direct, control, and monitor all activities on multiple projects at a time.

Position Requirements

• Registered Professional Engineer (PE License)
• 8+ years of engineering design and project management experience
• Experience with all aspects of HVAC and Plumbing Design
• Experience with design-build projects.
• Experience performing energy studies, audits, and analysis.
• Involved with Working knowledge of the Clean Buildings Law, HB1390, and Climate Action Plan.
• Experience and knowledge of the state and local codes.
• Comfortable and willing to present complex engineering concepts to clients, industry partners, and other staff.
• Bachelor’s in mechanical engineering
• LEED Accreditation is a plus

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

Upon eligibility, some of the benefits offered include-

• 13 Observed Company paid holidays a year
• Employer-paid Group Life Insurance
• Supplemental Insurance Plans such as: Accident, Critical Illness, and Pet Insurance
• Tuition & Training Assistance
• 401(k) program offers immediate vesting and employer match is 100%, not exceeding 4% of employee compensation

Reasonable Accommodations

If you need assistance or accommodations during the application or interview process, please contact us [e-mail] or your dedicated recruiter with the job title and requisition number.

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