Mechanical/Plumbing Engineer (mid-level)
Confirmed on the employer's own hiring board on Nov 15, 2026. First seen by Alion on Nov 12, 2026.
CMTA | P2S – Mechanical/Plumbing Engineer (mid-level)
Job Description:
CMTA | P2S, a Legence company, is seeking a Mid-Level Mechanical/Plumbing Engineer with consulting engineering experience and a strong, innovative technical background in mechanical and plumbing engineering design. This role works with engineers, consultants, clients, and other design-team members to develop energy-efficient mechanical and plumbing systems for commercial buildings and complex infrastructure projects. The engineer performs calculations, develops drawings and specifications, coordinates designs across disciplines, and supports projects through submittal reviews, field verification, and construction administration. The ideal candidate is self-motivated and committed to helping project teams and clients succeed.
Office Location:The position is based in three Northern California locations (Lafayette and San Jose offices, and the Sacramento area)
Work Schedule: Hybrid — 3 days in-office, 2 days remote
Salary:$115,000 - 150,000 (dependent on experience). This role is also eligible for an annual performance-based bonus. Bonus eligibility and payout are determined by role, individual performance, and company performance, and are not guaranteed.
Key Responsibilities
Design & Technical Execution
Develop mechanical and plumbing system designs, calculations, layouts, drawings, and specifications, evaluating appropriate systems and equipment in accordance with project requirements, applicable codes, and established technical standards.
Evaluate design solutions and drawings for compliance with project requirements, applicable codes, and established technical standards.
Perform quality assurance reviews and apply established QA processes to support consistent, high-quality project delivery.
Prepare technical documentation and communicate technical recommendations clearly to clients and project teams.
Project & Cross-Discipline Coordination
Serve as a key contributor, or lead when assigned, on project teams.
Coordinate mechanical and plumbing system designs, drawings, and specifications with clients, architects, and other engineering disciplines.
Manage assigned project budgets and support projects through design and construction administration.
Respond to design-related questions and help resolve technical issues throughout project delivery.
Field & Construction Support
Review contractor submittals and shop drawings for conformance with contract documents and applicable codes.
Conduct field visits to verify existing or construction conditions and document relevant observations.
Attend client, project, and jobsite meetings as needed.
Team & Technical Development
Share technical knowledge and provide project-based guidance and mentoring to junior engineering staff.
Contribute to the consistent application of technical standards and effective engineering practices across assigned projects.
Perform other duties or projects as required or assigned.
Desired Skills and Experience
Education & Credentials
Bachelor of Science in Mechanical Engineering or a similar degree.
Engineer in Training (EIT) certification, or actively pursuing EIT certification or Professional Engineer (PE) licensure is preferred.
Experience
Minimum of 5 years of mechanical and/or plumbing design experience.
Experience with healthcare projects (HCAI/OSHPD) and/or educational facilities (K-12/ Higher Education) is preferred.
Experience in conceptual and detailed design for new-construction and tenant-improvement projects.
Demonstrated ability to contribute to or lead project teams successfully.
Technical & Professional Skills
Thorough knowledge of mechanical and plumbing design principles, systems, applicable codes, and corresponding terminology.
Ability to read, interpret, and implement mechanical and plumbing design documentation.
Proficiency with Microsoft Office products, including Excel.
AutoCAD, Revit, and Bluebeam proficiency.
Strong communication, time management, interpersonal, and organizational skills.
Mechanical Discipline Expertise
HVAC load and energy calculations
Air distribution system design
Heating and cooling hydronic system design
HVAC equipment sizing, selection, and specification
Local code and energy code compliance
Plumbing Discipline Expertise
Plumbing systems calculations
Domestic hot and cold water system design
Sanitary waste and vent system design
Storm drainage system design
Specialty plumbing system design, e.g., healthcare, biotech, etc. (preferred)
Plumbing equipment sizing, selection, and specification
Local code and energy code compliance
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