24 plant process engineer jobs found in St. Louis

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...

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...

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 mission critical, industrial, life sciences, power & energy, aviation, commercial, institutional, residential and sports & entertainment related building projects. The Role We Want You For The Virtual Design and Construction (VDC) Engineer will become a strategic asset within a growing business unit and the key member of our project teams. As part of VDC team you will be involved in a range of activities throughout the design build cycle that are essential for a successful project delivery. These activities include support and implementation of Clayco's Digital...

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 mission critical, industrial, life sciences, power & energy, aviation, commercial, institutional, residential and sports & entertainment related building projects. About LJC LJC Design & Engineering 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...

Senior Mechanical Engineer Job Description Job Information Job Title Senior Mechanical Engineer Reports To Director of Engineering Location St. Louis, MO Number of Direct Reports 0 About Murphy Company Since 1907, Murphy Company has been a leading mechanical contractor in the St. Louis and Denver markets that provides its professionals the environment, opportunities, technology, and tools to experience a rewarding career. Being a company that prides itself on its core values of employee well-being, enduring relationships, and integrity and professionalism, we know it starts with our employees. We strongly believe our people are our most important asset, and we strive every day to make Murphy a great place to work as we build our clients' visions. We Are Looking For Someone Like You Murphy Company is currently seeking a Senior Mechanical Engineer or Designer to work in a Design-Build and Design-Assist environment in the St. Louis, MO office. This...

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...

Crawford, Murphy & Tilly is seeking a Civil Engineer to join our Water Resources group in the St. Louis, MO office. This is not a remote position. We are a fast-growing firm with 500+ employees across 25 offices in 10 states serving clients through our four primary business groups: Aviation Surface Transportation Water Resources Building & Site Services CMT provides planning, environmental, design, and construction observation phase services on projects in all four of these groups and more, which range from simple to complex. As a Water Resource Civil Engineer , you'll play a key role in working with senior staff, to support a wide range of municipal infrastructure projects, working closely with experienced engineers on planning, design, permitting, and construction-phase services. What you will do: Support water, wastewater, and stormwater municipal infrastructure projects from planning through construction Projects may include water supply and...

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...

Description JOB SUMMARY The Mechanical Engineer I 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 • Design & develop products, assemblies & components that meet or exceed ESG's stringent quality, cost, performance & schedule requirements. • Creating 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...

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. As a qualified nonprofit agency operating within the AbilityOne program, ServiceSource hires persons with significant disabilities. For the majority of direct labor positions, ServiceSource will obtain documentation of a significant disability as per the JWOD Act. Job Summary The focus of the Engineer Technician V is to support project engineering management and record drawing maintenance. Work includes support engineers throughout project life cycle and management/development of drawings and specifications. Primary Duties Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. These duties and responsibilities will be rated on the Annual Performance Review. Calculate dimensions,...

Job Type Full-time Description About BHMG BHMG is leader in utility-focused engineering and consulting, serving electric companies, municipalities and organizations with large energy needs. For over 50 years, we've been the trusted partner organizations rely on to solve complex challenges and reimagine what's possible. We empower our team, encourage ownership and innovation, and create an environment where you can enjoy your work, do your best, and make a meaningful impact for our clients. At BHMG, you're not just doing a job-you're building a meaningful career with a company that lives its mission every day: Build Trust. Provide Solutions. Enjoy Freedom. About the Role Designed for an early career individual, the Distribution Line Engineer role offers the opportunity to develop specialized expertise in overhead and underground distribution line design, project coordination, and early mentorship responsibilities. This position is an on-site or hybrid position...

Job Type Full-time Description BHMG is leader in utility-focused engineering and consulting, serving electric companies, municipalities and organizations with large energy needs. For over 50 years, we've been the trusted partner organizations rely on to solve complex challenges and reimagine what's possible. We empower our team, encourage ownership and innovation, and create an environment where you can enjoy your work, do your best, and make a meaningful impact for our clients. At BHMG, you're not just doing a job-you're building a meaningful career with a company that lives its mission every day: Build Trust. Provide Solutions. Enjoy Freedom. About the Role Designed for an early career individual, the Transmission Line Engineer role offers the opportunity to develop specialized expertise in transmission line design, project coordination, and early mentorship responsibilities. This position combines hands-on design work with growing accountability for quality,...

Description Onsite in St. Louis, MO. We are not financially supporting sponsorships. CK Power is a family-owned business that has been providing off-highway power solutions for 90 years. At CK Power, we have the well-deserved reputation for engineering and building products that simply can't be made by the competition. We provide custom diesel power units and generators to a diverse group of industries that power the background of everyday life. To learn more, please visit us at www.ckpower.com. CK Power is looking for a Manufacturing Engineer at our St. Louis, MO, location. The Manufacturing Engineer is responsible for the design and improvement of manufacturing processes that incorporate lean ideas and manufacturing best practices. This position will develop and design workstation layouts, tooling & fixtures, and work instructions that produce quality products, and will manage large capital projects with strict timelines and balance smaller projects to meet the...

Crawford, Murphy & Tilly is seeking a Roadway Civil Engineer III in our St. Louis office to support transportation projects that improve safety, mobility, and connectivity throughout the communities we serve. This role is ideal for an engineer seeking expanded technical responsibility, exposure to a wide variety of transportation and development projects and continued professional growth within a collaborative Surface Transportation practice. We are a fast-growing firm with 500+ employees across 25 offices in 10 states serving clients through our four primary business groups: Aviation Surface Transportation Water Resources Building & Site Services CMT provides planning, environmental, design, utility, and construction observation phase services on projects in all four of these groups and more, which range from simple to complex. As a Roadway Engineer III , you'll collaborate with engineers, planners, environmental scientists, technicians, clients, and...

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...

Mechanical Engineer Job Description Job Information Job Title Mechanical Engineer Reports To Director of Engineering Location St. Louis, MO Number of Direct Reports 0 About Murphy Company Since 1907, Murphy Company has been a leading mechanical contractor in the St. Louis and Denver markets that provides its professionals the environment, opportunities, technology, and tools to experience a rewarding career. Being a company that prides itself on its core values of employee well-being, enduring relationships, and integrity and professionalism, we know it starts with our employees. We strongly believe our people are our most important asset, and we strive every day to make Murphy a great place to work as we build our clients' visions. We Are Looking For Someone Like You Murphy Company is currently seeking a Mechanical Engineer or Designer to work in a Design-Build and Design-Assist environment in the St. Louis, MO office. This group consists of...

Introduction: Join our dedicated team as a Sr. Project Engineer, where you will contribute to critical infrastructure projects that support safe, reliable energy delivery. ENTRUST Solutions Group is an industry leader in engineering, consulting, and automation services, recognized as an ENR Top 100 firm. In this role, you will be at the forefront of designing and delivering natural gas distribution and transmission solutions, ensuring projects meet the highest standards of quality, safety, and regulatory compliance. Responsibilities: In this role, you will support the design and execution of natural gas infrastructure projects, including gas distribution and transmission systems, meter and gate stations, and high-pressure pipelines. You will work closely with Project Managers and senior technical leaders to advance engineering designs, identify opportunities for process improvement, and deliver high-quality results. You will assist with proposal development, estimating...

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...