Mechanical Engineer, High-Spec Water

CECO Environmental Corporation

. Lead the mechanical design and specification of water and wastewater systems, including: .

Posted 4/30/2026full-timeTustin • California • 🇺🇸 United StatesMid-LevelSenior💰 $100,000 - $110,000 per yearWebsite

About the role

Key responsibilities & impact

Lead the mechanical design and specification of water and wastewater systems, including:
Produce and review high spec technical documentation, including:
Ensure designs comply with industry standards, codes, and regulations (e.g. WRAS, BS/EN standards, local water authority requirements).
Carry out technical assurance and independent design reviews.
Support projects from concept through detailed design, construction, commissioning, and handover.
Liaise with clients, contractors, suppliers, and regulators to resolve technical challenges.
Review contractor submissions, method statements, and commissioning plans.
Provide site support, inspections, and witness testing where required.
Act as a technical authority for water mechanical systems within the business.
Mentor and provide guidance to junior engineers and project teams.
Contribute to technical strategy, best practice development, and continuous improvement initiatives.
Collaborate closely with civil, electrical, ICA, and process engineering disciplines.

Requirements

What you’ll need

Degree in Mechanical Engineering or relevant discipline
Significant experience in water, wastewater, or utilities engineering environments
Strong understanding of hydraulics, pumping systems, treatment processes, and mechanical plant
Proven ability to deliver high spec, safety critical, or regulated projects
Excellent technical writing, problem solving, and communication skills.
Chartered or working toward CEng status (IMechE or equivalent) (preferred)
Experience with major frameworks, utilities providers, or mission critical facilities (preferred)
Knowledge of energy efficiency, resilience, and sustainability principles (preferred)
Familiarity with digital design tools (e.g. 3D modelling, BIM environments) (preferred)

Benefits

Comp & perks

We provide a variety of medical insurance plans, with dental and vision coverage
Employee 401(k)
Tuition reimbursement
And much more

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

mechanical designwater systemswastewater systemstechnical documentationhydraulicspumping systemstreatment processesmechanical plantsafety critical projectsdigital design tools

Soft Skills

problem solvingcommunicationmentoringcollaborationtechnical authority

Certifications

Degree in Mechanical EngineeringChartered Engineer (CEng)IMechE