Senior Project Engineer

Position Summary

C&S Companies is seeking a Senior Project Engineer to support the SESW Facilities team in San Diego. This position is for a licensed mechanical engineer with a strong business development focus and the technical capability to independently produce high-quality mechanical design deliverables in Revit.

The successful candidate will help grow C&S’s mechanical facilities presence in the California market by building client relationships, identifying and shaping opportunities, providing market intelligence, and supporting proposal and pursuit activities. The role also requires hands-on engineering leadership, including design production, coordination, quality review, and technical support throughout project delivery.

• Lead and support business development activities for mechanical facilities services throughout California.
• Develop and maintain relationships with clients, owners, architects, contractors, industry partners, and other key stakeholders.
• Identify emerging market opportunities, client needs, procurement trends, and competitive conditions in the California facilities market.
• Provide regular market insights to SESW Facilities leadership, including intelligence on prospective clients, funding opportunities, market sectors, and strategic pursuits.
• Support go/no-go evaluations, capture planning, proposal development, interview preparation, and client presentations.
• Represent C&S at client meetings, industry events, professional organizations, and networking opportunities.
• Partner with technical and operational leadership to develop pursuit strategies and position C&S for long-term client relationships.

• Serve as a senior mechanical engineer for facilities projects from planning and existing-condition assessment through design, construction administration, commissioning, and closeout.
• Perform and oversee mechanical engineering design for HVAC, plumbing, hydronic, central plant, ventilation, equipment replacement, energy-efficiency, and related building-systems projects.
• Independently produce mechanical design documents, calculations, specifications, schedules, and construction details using Revit.
• Develop and maintain accurate Revit models, coordinate mechanical systems with architectural, structural, electrical, civil, and specialty disciplines, and resolve design conflicts.
• Conduct site investigations, field verification, existing-condition assessments, and client coordination meetings.
• Support preparation of project scopes, fee proposals, budgets, schedules, and work plans.
• Review project deliverables for technical accuracy, code compliance, constructability, coordination, and quality.
• Provide technical guidance and mentoring to junior engineers and designers.
• Support construction-phase services, including responses to requests for information, submittal reviews, site observations, issue resolution, and commissioning coordination.

• Work closely with SESW Facilities leadership and multidisciplinary project teams to deliver coordinated, responsive services.
• Communicate project status, risks, decisions, and technical recommendations clearly to clients and internal team members.
• Balance client-development responsibilities with direct technical production and project-delivery commitments.
• Contribute to a culture of quality, accountability, collaboration, and continuous improvement.

• Bachelor’s degree in Mechanical Engineering or a closely related engineering discipline.
• Active Professional Engineer (PE) license in California.
• 8 or more years of progressive mechanical engineering experience supporting facilities, building systems, or…