17 associate project engineer jobs found in St. Louis, MO

About 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. About LJC LJC Design & Engineering (LJC) is a full-service architecture, engineering, and design firm committed to enhancing the quality of the human experience through integrated design. We are a team of high-energy professionals who share a passion for design, a collaborative approach, and a casual culture. We solve challenges by leveraging the collective expertise and ingenuity of the best and brightest minds across development, design, engineering, and construction. The Role We...

Description JOB SUMMARY The Mechanical Engineer II is responsible for the design, development, documentation, test, and evaluation activities for components, sub-assemblies, and finished goods products that meet the cost, performance and timeliness requirements defined within ESG's Product Planning Process (P3 Process). This person will be tasked to investigate, develop, and implement new technologies, tools and processes, and must solve problems through original thinking and ingenuity. DUTIES AND RESPONSIBILITIES Essential • Develop processes, products, assemblies & components that meet or exceed ESG's stringent quality, cost, performance & schedule requirements. • Create new vehicle-specific parts and test fitting parts onto cars, trucks, and other vehicles. • Ability to disassemble and measure vehicles with hand tools or use of 3D scanner. • Ability to fit check parts onto various vehicles/applications. • Support Label Modification projects as defined within...

An internship at Oates Associates means hands-on engineering experience in the office and in the field. You will prepare for your future by assisting project managers and engineers with project assignments and developing skills with our in-house training sessions. Typical responsibilities include office work such as CADD drafting, computations and spreadsheet work; and fieldwork including condition assessments, surveying, construction staking, testing and observation. Internships are available year-round. The ideal candidate must meet the following minimum requirements: Currently enrolled at an accredited 4-year college or university with preference given to juniors and seniors Working toward a bachelor's degree in civil engineering or a related field A valid driver's license and authorization to work in the United States Strong technical and communication skills Previous experience at other engineering consulting firms or government agencies is a plus Working knowledge of...

Summer 2027 - Operations Engineer Collegiate Associate Intern (St. Louis) in GAC St. Louis Unique Skills: Your Future Takes Flight at Gulfstream: Summer 2027 At Gulfstream, a proud division of General Dynamics, Collegiate Associates apply classroom learning to real-world challenges and gain valuable experience. You'll work alongside skilled professionals in a culture built on integrity, pride, and excellence-preparing you for future success in the aerospace industry. This role is in St. Louis, Missouri. The facility is located at the St. Louis downtown airport, only minutes from exciting downtown St. Louis. What You'll Experience • Real-world projects that make an impact • Exposure to innovative practices • Opportunities to build skills and professional connections About the position The Completions Operations Engineering team in St. Louis is seeking enthusiastic and driven students for an internship within our Engineering group. If you're passionate about...

We are seeking an electrical engineer with planning, design, and construction-related services experience. The ideal candidate enjoys interacting with clients and is a pragmatic problem solver capable of working through unique technical challenges and employing proven solutions to meet our clients needs. As an integral member of our multiple discipline project teams, you will be involved with all phases of electrical engineering for water, wastewater, and stormwater infrastructure. This includes low and medium power distribution (through 34.5 kV), motor control, grounding and lightning protection, exterior and interior lighting, standby power generation systems, MCC design, specification writing, and construction cost estimating. You will have the opportunity to work on some of the largest municipal water/wastewater treatment facilities in the U.S. This position is open for any Donohue office location. Requirements: B.S., Electrical Engineering PE registration 4+ years...

Job Type Full-time Description We are seeking an experienced Fire Protection Professional Engineer (PE) to lead the design, analysis, and implementation of fire protection and life safety systems across a variety of commercial, industrial, and institutional projects. This role provides technical leadership, ensures code compliance, and supports clients in achieving safe, resilient, and cost-effective solutions. Key Responsibilities Fire Protection System Engineering Design and develop fire suppression, detection, and alarm systems (e.g., wet/dry sprinkler systems, clean agent systems, fire pumps, mass notification). Prepare engineering drawings, specifications, and technical reports. Code Compliance & Life Safety Interpret and apply relevant codes and standards (e.g., NFPA , ICC , IBC , IFC , FM Global ). Conduct building code and life safety analyses, including egress, occupancy classification, and hazard assessments. Collaborate with AHJs...

Build your career while making an impact within your community. Oates Associates is a 100% employee-owned civil and structural engineering firm focused on enhancing our community. We combine strong client relationships with technical expertise to turn concepts into reality. Oates Associates offers a work environment that encourages and supports you during your career development journey. To accommodate our continued growth, we are seeking a project manager with a focus on building structural engineering to work on new building and renovation projects. This position is ideal for a structural engineer that enjoys working with clients on building expansions, repairs, renovations, and stand-alone buildings ranging from $10k to $20M. The selected candidate will also mentor junior staff, review their work for quality and accuracy, and support their ongoing technical growth. Qualifications Bachelor's degree in civil engineering or architectural engineering - master's degree is a plus...

Build your career while making an impact within your community. Oates Associates is a 100% employee-owned civil and structural engineering firm focused on enhancing our community. We combine strong client relationships with technical expertise to turn concepts into reality. Oates Associates offers a work environment that encourages and supports you during your career development journey. To accommodate our continued growth, we are seeking a project manager with a focus on building structural engineering to work on new building and renovation projects. This position is ideal for a structural engineer that enjoys working with clients on building expansions, repairs, renovations, and stand-alone buildings ranging from $10k to $20M. Qualifications Bachelor's degree in civil engineering or architectural engineering - master's degree is a plus PE license - SE license is a plus 5+ years of engineering experience Experience with structural steel, reinforced concrete, and/or masonry...

Position Summary: The Manufacturing Engineer role at our St. Louis headquarters is responsible for designing, implementing, and reviewing manufacturing processes, procedures, and equipment. This role will also coordinate with Product Design Engineering, applying DFMA principles to improve manufacturability and cost. Identify and implement continuous improvement initiatives and drive operational excellence. This role is also responsible for identifying, project managing, and implementing capital projects. ESSENTIAL FUNCTIONS OF THE JOB: Develop, document, and improve manufacturing processes for CNC machining, assembly, and related operations Design and specify tooling, fixtures, and work-holding solutions to improve quality, throughput, and cost Lead root cause analysis and corrective actions for scrap, rework, and quality escapes Support new part/program introduction, including process planning, capacity analysis, and first-article qualification Analyze production data...

Make an impact by joining ServiceSource, a champion for people with disabilities. Explore new opportunities! ServiceSource is an organization of talented people who drive innovation, embrace change, and strengthen communities. Make an impact by joining ServiceSource, a champion for people with disabilities. Explore new opportunities! ServiceSource is an organization of talented people who drive innovation, embrace change, and serve humanity. Job Summary The Facility Electrical Engineer III Project Manager will be subject matter expert for all aspects of electrical engineering at the site. Creates small capital improvement, repair contracts, and building models using AutoCAD and Revit. Assists operations with electrical equipment and distribution systems trouble-shooting and recommendations. The role is also instrumental for campus facilities and data center project engineering and project management. Primary Duties Reasonable accommodations may be made to enable...

Job Type Full-time Description Engineering excellence, built on people-first values. At LUZCO, we're more than an engineering firm - we're a familia. We pair technical excellence with a culture rooted in respect, flexibility, and genuine care for one another. Here, you're known by name, supported as a whole person, and encouraged to bring your authentic self to work with competitive benefits, and the flexibility to support life both inside and outside of work. We're proud to be a 2025 and 2026 Best Place to Work in St. Louis and a woman-owned, minority-owned boutique firm, delivering impactful engineering solutions in a workplace where people feel valued and empowered to grow. Why You'll Love LUZCO Benefits that take care of you: Top-notch medical, dental, and vision insurance; a competitive 401k match; generous PTO; student loan repayment assistance; and an employee recognition platform that celebrates your wins big and small. Flexibility that fits your life: We...

Job Type Full-time Description Engineering excellence, built on people-first values. At LUZCO, we're more than an engineering firm - we're a familia. We pair technical excellence with a culture rooted in respect, flexibility, and genuine care for one another. Here, you're known by name, supported as a whole person, and encouraged to bring your authentic self to work with competitive benefits, and the flexibility to support life both inside and outside of work. We're proud to be a 2025 and 2026 Best Place to Work in St. Louis and a woman-owned, minority-owned boutique firm, delivering impactful engineering solutions in a workplace where people feel valued and empowered to grow. Why You'll Love LUZCO Benefits that take care of you: Top-notch medical, dental, and vision insurance; a competitive 401k match; generous PTO; student loan repayment assistance; and an employee recognition platform that celebrates your wins big and small. Flexibility that fits your life: We...

Make your mark on local infrastructure. Oates Associates is a 100% employee-owned civil and structural engineering firm dedicated to designing thoughtful infrastructure that strengthens the communities we serve. We combine strong client relationships with technical expertise to turn concepts into reality. Oates Associates offers a work environment that encourages and supports you during your career development journey. To accommodate our continued growth, we are seeking a motivated and energetic individual for a civil engineering project management position. This position is ideal for a civil engineer that enjoys working on a team, working with clients, and bringing in work on building and site development, drainage, utility, parks and recreation, roadway, trail and campus development projects. Work will be out of our Collinsville, IL and/or St. Louis, MO offices. Key Responsibilities Meet with clients and potential clients to discuss projects Actively participate in team...

Overview Roeslein & Associates is a global leader in engineering, manufacturing, and construction services, specializing in modular, pre-fabricated solutions for the energy, beverage, and industrial sectors. With a focus on safety, innovation, and sustainability, Roeslein delivers turnkey project execution from concept to commissioning. Our team is driven by a commitment to quality and client success, operating across North America, South America, Europe, and Asia. Why Join Roeslein? At Roeslein, you're not just taking a job - you're becoming an employee owner. As part of a 100% ESOP organization, you share the success you help create while building a long-term career with a company that invests in its people. A Values Driven, People-First Culture We live by a simple but powerful ethos: Remain Humble. Stay Hungry. Be Happy. That means: Working hard and continuously improving Treating people with respect and integrity Prioritizing safety and quality in...

Overview Roeslein & Associates is a global leader in engineering, manufacturing, and construction services, specializing in modular, pre-fabricated solutions for the energy, beverage, and industrial sectors. With a focus on safety, innovation, and sustainability, Roeslein delivers turnkey project execution from concept to commissioning. Our team is driven by a commitment to quality and client success, operating across North America, South America, Europe, and Asia. Why Join Roeslein? At Roeslein, you're not just taking a job - you're becoming an employee owner. As part of a 100% ESOP organization, you share the success you help create while building a long-term career with a company that invests in its people. A Values Driven, People-First Culture We live by a simple but powerful ethos: Remain Humble. Stay Hungry. Be Happy. That means: Working hard and continuously improving Treating people with respect and integrity Prioritizing safety and quality in...

Make an impact by joining ServiceSource, a champion for people with disabilities. Explore new opportunities! ServiceSource is an organization of talented people who drive innovation, embrace change, and strengthen communities. Job Summary This position is responsible to provide facility engineering, project management, construction and renovation services and support of daily facility operations, space renovations, and repair projects. This shall include, but is not limited to energy management, decommissioning, Building Automation System (BAS) administration and operation, Computer Aided Design & Drafting (CADD), and Building Information Modeling/Management (BIM) efforts in support of daily facility operations, maintenance technical support, and project development as well as project management and execution services Primary Duties Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. These duties and...

Description David Mason + Associates has provided high quality Civil Engineering services since 1989. Our team of professionals prepare design plans for new construction and renovation projects in education, healthcare & utility market sectors, among others. With a long history of working relationships within the St. Louis region, we've also had the opportunity to work on iconic projects such as Busch Stadium, the Gateway Arch, the St. Louis Zoo, City Park - the new MLS Stadium and more! Our St. Louis Civil team is looking for an entry-level Civil Staff Engineer who is ready to jump in and support the team. Our ideal candidate holds a bachelor's degree, has 1+ years of Civil Engineering experience, including internships & has successfully passed the FE exam. Why work with David Mason + Associates? Every-other Friday OFF Hybrid schedule & flexibility 70% employer paid Health benefits "Family-first" company culture Minority-Owned Business Enterprise Plus,...