Senior Project Engineer in San Diego, California at C&S Companies

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 vertical infrastructure projects.
• Demonstrated experience with HVAC, plumbing, mechanical equipment, building-systems analysis, and mechanical design documentation.
• Advanced proficiency in Autodesk Revit, including independent production of mechanical models and construction documents.
• Experience coordinating multidisciplinary design teams and working directly with clients, architects, contractors, and project stakeholders.
• Proven business development experience, including client relationship management, opportunity identification, proposal support, and interview participation.
• Strong understanding of the California facilities market, including regional client needs, procurement practices, market conditions, and competitive landscape.
• Excellent written, verbal, and presentation skills.
• Ability to work independently while collaborating effectively across a multidisciplinary team.
• Ability to travel locally and regionally for client meetings, site visits, industry events, and project needs.

• Experience supporting public-sector, institutional, education, healthcare, aviation, municipal, commercial, industrial, or other complex facilities projects.
• Experience with energy studies, decarbonization, building electrification, central utility systems, sustainability, retro-commissioning, or facility modernization.
• Familiarity with California building codes, energy requirements, permitting processes, and local agency coordination.
• Experience with mechanical construction administration and field support.
• Experience leading or mentoring mechanical engineering staff.
• Established client and industry relationships in the San Diego and broader California market.

• Builds a reliable pipeline of California mechanical facilities opportunities and strengthens client relationships.
• Provides timely, actionable market intelligence that informs SESW Facilities growth strategy.
• Produces coordinated, accurate Revit deliverables while maintaining senior-level technical oversight.
• Supports winning pursuits and delivers responsive, high-quality client service.
• Helps develop the next generation of mechanical engineering professionals through mentoring and technical leadership.

C&S Companies is an Equal Opportunity/Affirmative Action Employer. Employment decisions are based on personal capabilities and qualifications without regard to race, color, disability, religious belief, national origin, marital or domestic partner status, veteran status, sexual orientation, age, gender, including gender identity and expression, or other protected categories. C&S will make reasonable accommodation for qualified individuals with disabilities or disabled veterans during the application process.