Mechanical Engineer Jobs in Ontario, CA

Elevate your career by leading complex engineering projects within the Public Works Department. Collaborate with diverse teams to deliver exceptional design solutions while ensuring compliance with ci...

Partner with us to design and develop innovative mechanical and electromechanical systems. Split your time between engineering tasks and field service, delivering technical support and ensuring projec...

Contribute to the manufacturing process by optimizing design producibility, developing efficient methods, and ensuring product quality throughout production and assembly workflows...

Accelerate your career by shaping innovative workflows and AI-driven experiences. Join a dynamic team where ownership, speed, and user-focused product development are paramount. Contribute across the...

Transform the design and implementation of fluid systems for launch vehicles, ensuring reliability and efficiency. Collaborate across teams to develop innovative solutions that meet complex aerospace...

Support project management initiatives by coordinating activities and resources to ensure successful project execution within deadlines and budgets. Collaborate closely with project teams in the indus...

Lead the charge in advanced hydraulic engineering for major water resources projects, ensuring quality deliverables and stakeholder engagement, while mentoring staff and driving business growth throug...

Engineer innovative hydraulic solutions for large-scale water projects. Lead a multidisciplinary team in design and project management, ensuring quality deliverables while actively engaging clients an...

Join a team that drives innovation in heat pipe technology, working collaboratively on development, design, and qualification of advanced thermal systems for sustainable energy applications, ensuring...

Lead the development and training of a dynamic applications engineering team, enhancing their technical capabilities and driving customer success through hands-on involvement in pre-sales and post-sal...

Join a team that's at the forefront of developing precision optical systems for spacecraft. This role focuses on the mechanical design of complex opto-mechanical assemblies, turning innovative concept...

Empower your career by applying advanced engineering principles to lead innovative construction projects within healthcare facilities, ensuring compliance and delivering high-quality results through c...

Shape the future of energy by launching your career in Field Engineering. Gain hands-on experience with power generation technologies while traveling to customer sites, supporting installations and ma...

Drive your career forward by joining our entry-level Field Engineering Program! Gain hands-on technical training and experience while traveling to customer sites, supporting power generation projects...

Take ownership of program management and engineering for space initiatives, collaborating closely with military and government leaders across multiple contractors for impactful project execution and i...

Grow your career with a leading firm by managing diverse water resource projects. Lead multi-discipline teams, oversee infrastructure designs, and foster client relationships to deliver innovative eng...

Lead multifaceted water resource projects, nurturing client relationships and managing teams. Oversee planning, design, and construction to meet project goals while ensuring compliance and mitigating...

Unlock potential by joining our dynamic engineering team to design cutting-edge electrical systems for mission-critical facilities. Collaborate with experts, enhance your skills, and contribute to exc...

Grow your career with a leadership role driving innovations in manufacturing. Lead teams to enhance equipment performance, implement automation, and optimize workflows, while fostering a culture of co...

Lead complex water resource projects, utilizing advanced structural design techniques and FEA analysis. Mentor engineers while managing project deliverables and client communications to ensure success...

Pioneer cutting-edge turbomachinery solutions by designing, developing, and testing innovative turbopump systems for advanced rocket applications. Collaborate with multidisciplinary teams to drive pro...

Manage the electrical qualification processes, including testing and analysis, for power electronics, ensuring compliance with standards at customer sites worldwide. Collaborate with engineering teams...

Deliver innovative electrical infrastructure solutions for data center projects. Collaborate with multi-disciplinary teams to tackle engineering challenges and oversee all project phases from design t...

Unlock your potential as a Senior Project Engineer leading diverse civil design projects from land development to water management. Collaborate with clients and ensure high standards across all delive...

Apex is seeking a skilled Mechanical Design Engineer to develop mechanical designs and models for satellite structures, subsystems, and components. The role involves conducting structural analyses, op...