Mechanical Engineer, High-Spec Water

Compass Water•Tustin, CA

9d•$100,000 - $110,000•Onsite

About The Position

CECO Environmental is a global leader in providing sustainable solutions for industrial air, water, and energy transition. Since 1966, we’ve been addressing the world’s most pressing environmental challenges. Our mission is to protect people, the environment, and industrial equipment, making a tangible impact across industries like renewable energy, semiconductor manufacturing, power generation, and water treatment. As a purpose-driven company, we foster a culture of innovation, collaboration, and integrity, ensuring that every project we undertake creates lasting positive change. At CECO, you’ll be part of a growing, dynamic team committed to a cleaner, safer, and more sustainable future. We are proud to share that CECO was named one of Newsweek’s America’s Greatest Companies for 2025 and that Forbes recognized CECO as one of America’s Most Successful Small Cap Companies for 2026, marking our third consecutive year on the Forbes list. CECO Environmental is a publicly traded company on the NASDAQ under the ticker CECO, reflecting our strong growth, financial performance, and commitment to delivering value to shareholders. As part of the CECO Environmental family of brands, Compass Water Solutions plays a critical role in delivering specialized water solutions that protect both people and the environment. By joining our team, you’ll contribute to our shared mission of protecting global industrial operations and shaping the future of environmental stewardship. The High-Spec Water Mechanical Engineer is responsible for the design, specification, technical assurance, and delivery of complex water and wastewater mechanical systems across high value, high risk, or regulated projects. The role requires deep technical expertise, strong stakeholder engagement, and leadership in ensuring systems meet stringent performance, safety, and regulatory requirements. This position plays a critical role in delivering robust, efficient, and compliant water infrastructure, often within multidisciplinary teams and fast paced environments.

Requirements

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.

Nice To Haves

Chartered or working toward CEng status (IMechE or equivalent).
Experience with major frameworks, utilities providers, or mission critical facilities.
Knowledge of energy efficiency, resilience, and sustainability principles.
Familiarity with digital design tools (e.g. 3D modelling, BIM environments).

Responsibilities

Lead the mechanical design and specification of water and wastewater systems, including: o Pumping systems o Treatment processes o Pipework and valve networks o Filtration and disinfection systems o Mechanical plant and ancillary equipment
Produce and review high spec technical documentation, including: o Design calculations o Technical specifications o Schematics and layouts o Equipment schedules
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.