Intern - Mechanical Engineer (Summer 2027) CDG Engineers, Inc.Intern - Mechanical Engineer (Summer 2027)Saint Louis, MOCDG Engineers, Inc. is a full-service, multi-discipline professional services organization based in St Louis, MO, with capabilities in civil, structural, electrical, and mechanical engineering, as well as architecture. You will be working with project managers and performing associated activities such as scheduling, budgeting, and coordinating with clients and team members in a collaborative environment.
Mechanical Engineer Arch Precision, LLCMechanical EngineerEarth City, MOFull timeProduction Support & Troubleshooting: Resolving daily operational, software, or hardware problems on the factory floor, including troubleshooting, repairing, or redesigning equipment. Process Improvement & Development: Designing new production methods, optimizing existing workflows, and implementing technologies to increase efficiency and lower costs.
Mechanical Engineer Intern (Summer 2027) CRB Group, IncMechanical Engineer Intern (Summer 2027)Saint Louis, MOExperience collaboration and continuous learning like never before amongst subject matter experts spanning across mechanical, electrical, plumbing, process, and automation engineering; architecture and lab planning; procurement, estimation, virtual design & construction, health & safety, and construction management. CRB proudly specializes in industries that inherently carry important social responsibility - we recognize our impact and influence in the communities we serve and pursue corporate responsibility through the lens of people, community, and planet.
Process Mechanical Stress Engineer Clayco IncProcess Mechanical Stress EngineerSt. Louis, MOClayco is a full-service, turnkey real estate development, master planning, architecture, engineering, and construction firm that safely delivers clients across North America the highest quality solutions on time, on budget, and above and beyond expectations. The position plays a critical role in delivering safe, reliable, and constructible engineering solutions for industrial, manufacturing, pharmaceutical, food & beverage, life sciences, chemical, and advanced technology projects.
Mechanical Engineer II - Test Leonardo DRS IncMechanical Engineer II - TestHigh Ridge, MOThe Leonardo DRS Naval Power Systems business is a trusted provider of innovative naval gas and hybrid power systems, control technology and support solutions for the U.S. Navy and navies around the world. And we understand there is more to life than work, and the importance of offering flexible work schedules with our 9/80 program, competitive vacation, health/emergency leave, paid parental leave, and community service hours.
Senior Mechanical Packaging Specialist Nestle SASenior Mechanical Packaging SpecialistSt. Louis, MO$89,000–$134,000 / yearBachelor''s Degree in a mechanical engineering, packaging engineering, or related field 5+ years of experience in mechanical packaging engineering experience in pet food, CPG, manufacturing, or industrial environments. Collaborate with cross-functional teams, including R&D, marketing, and production, to establish comprehensive packaging specifications that align with product formulations and branding requirements.
Mechanical Project Engineer | St. Louis, MO IMEG CorpMechanical Project Engineer | St. Louis, MOSt. Louis, MOSupporting a healthcare-focused MEP team, this role contributes to coordinated building systems work while advancing high-performance, energy-efficient design aligned with MEP2050 and AIA2030. Louis, MO, to lead design efforts as a project manager or lead engineer for low to moderate complexity projects and support the delivery of larger and high complexity work with senior staff.
Mechanical Project Engineer | St. Louis, MO IMEG ConsultantsMechanical Project Engineer | St. Louis, MOSaint Louis, MissouriSupporting a healthcare-focused MEP team, this role contributes to coordinated building systems work while advancing high-performance, energy-efficient design aligned with MEP2050 and AIA2030. Louis, MO, to lead design efforts as a project manager or lead engineer for low to moderate complexity projects and support the delivery of larger and high complexity work with senior staff.
Mechanical Design Engineer Actalent IncMechanical Design EngineerO'Fallon, MO$55–$67 / hourThese positions will play a key role in the design, development, integration, testing, and production support of ruggedized electronic assemblies, packaging solutions, power systems, and electromechanical products used in demanding military and defense applications. The Defense Electronics Group is seeking both an Associate Mechanical Design Engineer and an experienced Mechanical Design Engineer to support the development of advanced defense electronics products and related mechanical systems.
Process Mechanical Stress Engineer ClaycoProcess Mechanical Stress EngineerSt. Louis, MOClayco is a full-service, turnkey real estate development, master planning, architecture, engineering, and construction firm that safely delivers clients across North America the highest quality solutions on time, on budget, and above and beyond expectations. The position plays a critical role in delivering safe, reliable, and constructible engineering solutions for industrial, manufacturing, pharmaceutical, food & beverage, life sciences, chemical, and advanced technology projects.
Lead Process Mechanical Engineer ClaycoLead Process Mechanical EngineerSt. Louis, MOAbout Us Clayco is a full-service, turnkey real estate development, master planning, architecture, engineering, and construction firm that safely delivers clients across North America the highest quality solutions on time, on budget, and above and beyond expectations. With $8.1 billion in revenue for 2025, Clayco specializes in the “art and science of building,” providing fast-track, efficient solutions for industrial, commercial, institutional, and residential related building projects.
Commissioning Engineer & Mechanical Project Manager (Specialized Critical Facilities) - Enterprise Physical Operations Washington University in St LouisCommissioning Engineer & Mechanical Project Manager (Specialized Critical Facilities) - Enterprise Physical OperationsSt. Louis, MO$84,200–$148,500 / yearCertifications/Professional Licenses: Associate Commission Professional (ACP) - Building Commissioning Certification Board (BCCB), Certified Commissioning Professional (CCP) - Building Commissioning Certification Board (BCCB), Professional Engineer (PE) - National Council of Examiners for Engineering and Surveying (NCEES), Professional Engineer - Missouri Division of Professional Registration. Preferred Qualifications: Five years of experience in commissioning, start-up, or operations of complex mechanical and electrical systems, preferably within critical environments (e.g., labs, clean rooms, data centers, hospitals, industrial plants).
Project Engineer Mechanical Procurement Clayco IncProject Engineer Mechanical ProcurementSt. Louis, MOWith $8.1 billion in revenue for 2025, Clayco specializes in the ''art and science of building,'' providing fast track, efficient solutions for mission critical, industrial, life sciences, power & energy, aviation, commercial, institutional, residential and sports & entertainment related building projects. As the Project Engineer (Mechanical Procurement), you will support the CDC team in developing competitive HVAC/mechanical estimates and procurement plans, sourcing equipment and materials, and building relationships with manufacturers, reps, and subcontract partners.
Mechanical Project Manager GpacMechanical Project ManagerGranite City, IL100000–150000GPAC (Growing People and Companies) is an award-winning search firm specializing in placing quality professionals within multiple industries across the United States since 1990. I'm partnering with one of the fastest-growing mechanical construction, engineering, and building automation organizations in the country, and we're hiring 80+ professionals across multiple states!
Mechanical Maintenance Engineer Chemtrade Logistics Income FundMechanical Maintenance EngineerEast St. Louis, IL$100,000–$120,000 / yearPhysical Demands The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job: Employee is frequently required to sit, stand, walk, reach with hands and arms, balance, stoop, kneel, crouch, or crawl. This role involves supporting effective maintenance, troubleshooting, developing technician skills, mechanical projects, and repair tasks to support continuous plant operations.
NewPreconstruction Engineer - Mechanical Design GpacPreconstruction Engineer - Mechanical DesignSaint Louis, MO75000–100000Their engineering and preconstruction team takes a highly collaborative, value-driven approach—developing mechanical solutions around each owner’s operational needs, project goals, budget, and long-term lifecycle costs. You will work closely with clients, estimators, project managers, engineers, and construction teams to evaluate project requirements and develop practical, cost-effective HVAC and piping solutions.
Mechanical Engineer (Water) City of Saint Louis, MissouriMechanical Engineer (Water)St. Louis, MOLouis City Hall 1200 Market Street Saint Louis, MO 63103. Change Site Fonts and Colors.
Mechanical Design Engineer National Design Build ServicesMechanical Design EngineerMaryland Heights, MissouriOur projects include cold storage, food and beverage processing, manufacturing plants, distribution centers, healthcare, and large-scale commercial buildings. The Mechanical Design Engineer – HVAC & Plumbing Systems is a key technical role responsible for the design and engineering of HVAC and plumbing systems from concept through construction.
Mechanical Preconstruction Manager Clayco IncMechanical Preconstruction ManagerSaint Louis, MOWith $8.1 billion in revenue for 2025, Clayco specializes in the ''art and science of building,'' providing fast track, efficient solutions for mission critical, industrial, life sciences, power & energy, aviation, commercial, institutional, residential and sports & entertainment related building projects. The Mechanical Preconstruction Manager will participate in all aspects of the preconstruction process for mechanical systems to develop accurate, detailed cost estimates, often based on conceptual or schematic designs with a focus on heavy/ advanced manufacturing, industrial and mission critical projects.
Hallmark Merchandiser Floater (part-time) Fairfield, CA 94533 Hallmark Marketing Company LLCHallmark Merchandiser Floater (part-time) Fairfield, CA 94533FAIRFIELD, CA$16.90–$18.90 / hourPart timeThe retail merchandiser position consists of three major components: Day-to-day engagement: Utilizing a mobile device provided by Hallmark, you'll restock, organize, and monitor the inventory of Hallmark products within and outside the Hallmark department. Leading up to and following holidays such as Valentine's Day, Easter, Mother's Day, Father's Day, Halloween, Thanksgiving, and Christmas, you can expect additional days and extended hours during the work week.