Mechanical Engineer PE System OneMechanical Engineer PESt. Louis, MO$100,000–$150,000 / yearSystem One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Design and draft blueprints; visit systems in the field; manage and coordinate projects to meet deadlines.
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).
Structural Engineer GpacStructural EngineerSt Louis, MO90000–130000GPAC (Growing People and Companies) is an award-winning search firm specializing in placing quality professionals within multiple industries across the United States since 1990. Apply intensive, complex, and diversified knowledge of engineering principles in broad areas of assignments and related fields.
Lead Electrical Engineer - Buildings WSP Global IncLead Electrical Engineer - BuildingsSaint Louis, MO$107,600–$159,800 / yearWork as an individual or as part of a cross-functional team of engineers, planners, architects, and construction professionals to execute project work on multiple concurrent projects, assist with laying out installations, balance creative thinking and innovation with project budgets and schedule constraints, and ensure project work conforms with specifications, permit applications, compliance documentation, and regulatory and technical field observation reporting. Tasks include the research, design, concept development, planning, and construction of electrical building systems, standby power generation, power distribution, power regulation, renewable energy, as well as protection and control systems in a wide variety of contexts (life science, healthcare, utilities, transportation, building, and Federal, State, and local government projects).
Aviation Electrical Engineer RS&H IncAviation Electrical EngineerSt. Louis, MOYou will lead designs and produce drawings for runway and taxiway lighting systems, NAVAIDs, and aviation infrastructure, develop calculations, specifications, engineering reports, and construction cost estimates, attend client meetings and site visits, and perform construction administration. You will have the opportunity to lead, develop, and deliver designs of varying sizes and complexity in our local and virtual team environment as well as engage in client relationship building and assist with winning the next big project all within an established infrastructure/aviation team.
Design and Analysis Engineer 3 The Structures Company, LLCDesign and Analysis Engineer 3Berkeley, MOAs trusted partners to leading aerospace and defense OEMs and Tier 1 suppliers, we connect professionals with career opportunities to grow and excel in aviation, aerospace, and defense. Bachelor of Science degree from an accredited course of study in engineering, chemistry, physics, mathematics, data science, or computer science.
Mechanical Engineer - Mission Critical ClaycoMechanical Engineer - Mission CriticalSt. 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. Working alongside a Senior Mechanical Engineer on each project, this mid-level role is responsible for producing detailed mechanical designs, performing analyses, and coordinating with multi-disciplinary teams to deliver infrastructure that meets demanding uptime and efficiency requirements in a fast-paced environment.
Senior Structural Engineer MiTek Industries IncSenior Structural EngineerChesterfield, MOWith nearly 5,600 team members worldwide, MiTek collaborates across the building industry to enable and accelerate transformational breakthroughs in design and construction to transform the way the industry designs, makes, and builds. Design truss components based on specified parameters from customers and use their knowledge of engineering and the building codes along with collaboration with other engineers in the office to ensure their designs protect the health safety and welfare of the public.
Roadway Project Engineer GBA CompaniesRoadway Project EngineerO'Fallon, ILOur people are passionate about delivering high-quality, technically sound solutions that improve the communities where we live, work, and play. We combine deep expertise with a commitment to mentorship, safety, and continuous improvement to create remarkable outcomes for our clients and meaningful growth for our people.
Licensed Transportation Engineer - Roadway OlssonLicensed Transportation Engineer - RoadwayMaryland Heights, MOYour passion for collaborative work and commitment to positively impacting communities will drive you to lead highway and roadway design, corridor planning, and infrastructure improvement projects. Louis office, you will perform various engineering and project management duties on roadway projects including prepare planning and design documents, process design calculations and preparing costs estimates.
Transportation Project Engineer III/IV Trilon GroupTransportation Project Engineer III/IVSt. Louis, MO$40–$60 / hourGonzalez Companies is a partner managed firm that provides comprehensive Planning, Design, and Construction Management Services to large and small Water, Sewer and Utility Districts; Departments of Transportation; and municipalities. Working primarily in the Greater St. Louis, Chicago, and Louisville metro areas, Gonzalez offers a great work environment, generous benefit packages, and opportunities to succeed in many professional disciplines.
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.
Substation Senior Project Engineer WSP Global IncSubstation Senior Project EngineerSaint Louis, MO$170,000–$220,000 / yearLead large-scale, complex substation and infrastructure projects (greenfield/brownfield, AIS/GIS substations), ensuring alignment on scope, schedule, and deliverables; manage project budgets, cost tracking, resource planning, and forecasting, and supervise EPC contractors, subcontractors, and multidisciplinary teams. Advanced proficiency with engineering and design software, including AutoCAD, AutoCAD Electrical, MicroStation, Revit, Aspen (OneLiner), ETAP, CAPE, CYME, PSCAD, SKM PowerTools, WinIGS, and Inventor, along with strong skills in Excel-based modeling and data analysis tools.
Substation Electrical Engineer - EIT Michael Page InternationalSubstation Electrical Engineer - EITChesterfield, Missouri$100,000–$150,000 / yearFull timeContact Dom Delia Quote job ref JN-062026-7047130Job SummarySector: Power & EnergySub Sector: Electrical Design EngineerIndustry: Energy & Natural ResourcesLocation: ChesterfieldContract Type: PermanentConsultant Name: Dom DeliaJob Reference: JN-062026-7047130Job Nature: Hybrid working Proficient in multiple areas of substation engineering such as physical layout design, protection/control design, relay settings programming, field support, substation commissioning, relay testing.
Forensic Structural Engineer, St. Louis II Salas O'Brien Engineers IncForensic Structural Engineer, St. Louis IISt. Louis, MORemote$100,000–$140,000 / yearOur specialized experience includes design for energy, manufacturing and industrial process, data centers, healthcare, science and technology, high-rise buildings, education, and other building types as well as structural and building sciences, infrastructure asset management, advanced robotics, and more. Our technical expertise is paired with an exceptional team of business development, human resources, finance and accounting, information technology, and marketing professionals, all of whom play a key role in bringing our commitments to deliver outstanding client outcomes and build long-term careers.
Geotechnical Engineer CochranGeotechnical EngineerWentzville, MOA successful candidate will be highly motivated and experienced in various aspects of geotechnical engineering, including the planning and implementation of subsurface field investigations, laboratory testing to determine engineering characteristics of soil and rock, familiarity with geotechnical design methods, and the preparation of geotechnical reports. With 120+ professionals, the firm delivers tailored solutions backed by deep expertise and is guided by core values of teamwork, excellence, quality, and trust—ensuring principal involvement and outstanding service throughout every project.
NewSupervising Electric Engineer (Design Center) Ameren CorpSupervising Electric Engineer (Design Center)Collinsville, IL$131,900–$204,400 / yearThe Supervising Engineer is responsible for engineering activities in the design centers; including the direct supervision of electrical engineers, and the recruitment, training, development, and appraisal of engineering personnel and the coordination of their work with the design center leadership team and other Ameren departments. Must have demonstrated leadership behaviors with the ability to work collaboratively and flexibly across multiple organizations, solve problems decisively, and be proactive and self-motivated to identify improvement opportunities, establish priorities and meet deadlines.
senior-electrical-engineer-water-multiple-locations Burns & McDonnellsenior-electrical-engineer-water-multiple-locationsSaint Louis, MO$160,000–$240,000 / yearAs the lead electrical engineer on key projects, you will coordinate directly with clients, project managers, other engineering discipline leads, and construction professionals to ensure that project quality, budget, and schedule are met. Provide quality reviews of engineering drawings, specifications, studies, estimates, etc., on drinking water, wastewater, distribution & collection systems, and industrial water and wastewater projects.
structural-engineer-power-multiple-locations Burns & McDonnellstructural-engineer-power-multiple-locationsSaint Louis, MO$100,000–$160,000 / yearAs a structural engineer, you will work on project teams to create world class designs for new projects, alterations and redevelopments on a variety of power generation and industrial projects. Applies strong knowledge of commonly used structural engineering/design concepts, principles, practices, codes, and procedures within the structural engineering services industry.
NewAutomation Engineer V CRB Group, Inc.Automation Engineer VSt. Louis, MOAs an AEC Firm we proudly specialize 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. The Senior Lead Engineer is responsible for directing and managing the workflows and execution of design and engineering support staff (Entry-Level to Senior) to meet client expectations and project goals.
Mechanical Engineer III CRB Group, Inc.Mechanical Engineer IIISt. Louis, MOAs a Mechanical Engineer III, youll play a key role in designing mechanical systems for complex facilities while also taking ownership of project scope and mentoring junior team members. Youll contribute across the full project lifecyclefrom early concept through constructionworking alongside a multidisciplinary team to deliver high-quality, coordinated solutions.
NewSenior Construction Engineer, Energy Storage (Remote) SOLV Energy LLCSenior Construction Engineer, Energy Storage (Remote)MO$90,924–$113,655 / yearThe Senior Engineer, Construction - BESS functions as a technical authority for high-risk BESS scopes, EOR and vendor coordination, system integration, fire protection coordination, commissioning support, and complex site or warranty issues while maintaining an individual contributor track with mentorship responsibilities. In addition, candidate introductions or resumes can only be submitted to our internal talent acquisition recruiting team if a signed vendor agreement is already on file and the third-party recruiter or agency has received formal instructions from our internal talent acquisition team to submit candidates for a particular job posting.
Senior Commissioning Engineer (Remote) SOLV Energy LLCSenior Commissioning Engineer (Remote)MORemote$127,324–$159,156 / yearThis position serves as the senior technical authority for commissioning engineering activities on assigned projects and functions as the primary engineering interface between Commissioning Project Management, Project Management, Engineering, Owners, Utilities, OEMs, and Field Services. In addition, candidate introductions or resumes can only be submitted to our internal talent acquisition recruiting team if a signed vendor agreement is already on file and the third-party recruiter or agency has received formal instructions from our internal talent acquisition team to submit candidates for a particular job posting.
NewSenior Substation Engineer Michael Page InternationalSenior Substation EngineerSt. Louis, Missouri$165,000–$180,000 / yearFull timeSenior Substation EngineerLead critical power projectsTechnical leadership roleOur client is a leading engineering and infrastructure services organization supporting utility, industrial, renewable energy, and power delivery projects. The Successful ApplicantA successful Senior Substation Engineer should have:Bachelor's degree in Electrical Engineering from an accredited institution.8+ years of substation engineering experience supporting transmission and distribution projects.
Civil/Structural Project Engineer Envista ForensicsCivil/Structural Project EngineerSaint Louis, MissouriWe have an opportunity for a civil/structural engineer to join our forensic team in the greater Nashville/Knoxville area - this is a work from home role when you're not doing field investigations - If you want the opportunity to escape the the Computer Screen, this role is in the field doing inspections and investigations 30-40% of the time! Envista Forensics believes that Veterans arrive with not only translatable skills and technical expertise but in addition come with the intangibles; leadership and values that we believe align with our 5 Guiding Principles.
senior-mechanical-engineer-consumer-life-solutions-multiple-locations Burns & McDonnellsenior-mechanical-engineer-consumer-life-solutions-multiple-locationsSaint Louis, MO$135,000–$210,000 / yearDescription The Senior Mechanical Engineer will lead mechanical design projects and teams to create world-class designs for new projects, alterations and redevelopments within the Life Sciences industry (Pharmaceutical and Biotech). + Quality review the construction administration including coordination with field personnel to resolve design related installation issues, calculations, field inspections and testing of mechanical systems.
Senior Electrical Engineer ClaycoSenior Electrical EngineerSt. 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. Demonstrated experience designing medium-voltage (up to 35 kV) and low-voltage distribution systems, including utility coordination, generator plants, switchgear, protective device coordination, and cable ampacity analysis (Neher-McGrath / IEEE 399 / IEEE 835) for high-reliability facilities.
senior-structural-engineer-power-multiple-locations Burns & McDonnellsenior-structural-engineer-power-multiple-locationsSaint Louis, MO$145,000–$210,000 / yearDescription The Senior Structural Engineer will lead structural design project teams to create world class designs for new projects, alterations, and redevelopments on a variety of projects including power, process, corporate, healthcare, pipeline, airports, institutional, industrial, manufacturing, government, and military facilities. Job: Structural Engineering Primary Location: US-CO-Denver Other Locations: US-MO-Saint Louis, US-MO-Kansas City, US-AZ-Phoenix, US-IL-Chicago, US-OH-Columbus Schedule: Full-time Travel: Yes, 25% of the Time Req ID: 260547 Job Hire Type: Experienced LI: MJ PWR.
Senior Substation Project Engineer WSP Global IncSenior Substation Project EngineerSaint Louis, MO$119,600–$213,200 / yearIf you''re energized by large-scale infrastructure projects, enjoy solving complex technical challenges, and want to help shape the future of digital infrastructure, this is an opportunity to make a lasting impact while accelerating your career on some of the most significant power delivery projects being developed today. Any unsolicited resumes, including those submitted to hiring managers or other business leaders, will become the property of WSP and WSP will have the right to hire that candidate without reservation - no fee or other compensation will be owed or paid to the recruiter, employment agency, or other staffing service.
staff-electrical-engineer-substation-st-louis Burns & McDonnellstaff-electrical-engineer-substation-st-louisSaint Louis, MOThe Staff Substation Engineer will work under the supervision of a licensed professional engineer to develop design deliverables for new and modified high-voltage (13kV to 765kV) electrical power substation projects. Prepares and develops substation design packages, including, but not limited to, physical arrangement above and below grade, protective relaying and control, electrical studies such as grounding and lightning analysis, and lighting and security.
Project Engineer I/II - Water/Wastewater Trilon GroupProject Engineer I/II - Water/WastewaterBelleville, IL$30–$40 / hourGonzalez Companies is a partner managed firm that provides comprehensive Planning, Design, and Construction Management Services to large and small Water, Sewer and Utility Districts; Departments of Transportation; and municipalities. Working primarily in the Greater St. Louis, Chicago, and Louisville metro areas, Gonzalez offers a great work environment, generous benefit packages, and opportunities to succeed in many professional disciplines.
Aviation Electrical Engineer RS&HAviation Electrical EngineerSt. Louis, MissouriYou will lead designs and produce drawings for runway and taxiway lighting systems, NAVAIDs, and aviation infrastructure, develop calculations, specifications, engineering reports, and construction cost estimates, attend client meetings and site visits, and perform construction administration. You will have the opportunity to lead, develop, and deliver designs of varying sizes and complexity in our local and virtual team environment as well as engage in client relationship building and assist with winning the next big project all within an established infrastructure/aviation team.
Substation Project Engineer Michael Page InternationalSubstation Project EngineerSt. Louis, Missouri$100,000–$160,000 / yearFull timeJob SummarySector: Power & Energy Sub Sector: Electrical Design Engineer Industry: Energy & Natural Resources Location: St. Louis Contract Type: Permanent Consultant name: Dom Delia Job Reference: JN-062026-7052585 Job Nature: Hybrid working Proficient in multiple areas of substation engineering such as physical layout design, protection/control design, relay settings programming, field support, substation commissioning, relay testing.
Electrical Engineer - Substation Aspen Technical Staffing, IncElectrical Engineer - SubstationChesterfield, MOBachelor's Degree in Electrical Engineering or a related discipline from an ABET-accredited program and a minimum of 3 years of electrical engineering experience , preferably in consulting; OR . This role focuses on the design and development of substation physical and/or protection and control systems for projects ranging from small distribution upgrades to large-scale transmission substations.
Estimating Engineer, PE BLUESCOPE STEEL LIMITEDEstimating Engineer, PEKcmo, MOThe estimating department implements strategies to achieve sustainable sales and financial results, maintain and grow customer accounts, and pursue profitable growth in pre-engineering buildings and services while evaluating potential projects for profitability and risk management. The Estimating Engineer, PE provides support to the business, builders, architects, and end customers by providing up front product knowledge, pricing, details, value engineering ideas, complete estimating, and technical support.
Forward Deployed Engineer, Japan k-IDForward Deployed Engineer, JapanJapan, MOAs a Forward Deployed Engineer, you'll be a core technical expert responsible for designing, developing, and maintaining integrations between k-ID's services and client systems. Our core platform, anchored by the Compliance Development Kit (CDK) and AgeKit, is the trusted engine for the world's largest game publishers and digital ecosystems.
Software Development Engineer II – CI/CD & Platform Automation (Mission-Focused) EsriSoftware Development Engineer II – CI/CD & Platform Automation (Mission-Focused)Saint Louis, MissouriThis role combines software engineering with DevOps and platform engineering principles, ideal for engineers who are passionate about automation, system reliability, and improving developer productivity in complex environments. Design, implement, and maintain high-speed CI/CD pipelines using GitHub Actions/Azure DevOps for cloud-native workflows and Jenkins for complex, cross-platform on-premises build automation.
Supervising Engineer - Transmission Planning AmerenSupervising Engineer - Transmission PlanningSaint Louis, MissouriProvides technical leadership for those performing power-flow, short-circuit, stability, reliability, economic and facility addition studies of the Ameren transmission system and interconnected transmission systems in order to determine the optimum size, configuration, and timing of new transmission facilities or upgrades to existing facilities. The Supervising Engineer is responsible for the immediate supervision, training and evaluation of personnel, completion of planning studies, and documentation of job descriptions related to the optimum development of the Ameren transmission system.
Construction Engineer II Gilbane Building CoConstruction Engineer IISt. Louis, MOThe Construction Engineer II assists the project team in obtaining, evaluating, coordinating, and distributing documents, reports, submittals, billing reports, and scopes of work to construct the project in a timely manner within budget and quality specified. Champion Innovation - Identify opportunities for new and improved ways of doing things that result in value added, unique and differentiated solutions.
Field Service Engineer Trumpf SE + Co KGField Service EngineerSt. Louis, MORemoteAs a family-run, high-tech company with nearly 19,000 employees at 71 locations worldwide, we are looking for forward thinkers with unconventional ideas and drive to join our team. If you would like to contact us regarding the accessibility of our website or need assistance in completing the applications process, please contact our HR department at 860.255.6000 or at HRgeneral@us.trumpf.com.
Automation Engineer III Salas O'Brien Engineers IncAutomation Engineer IIIChesterfield, MO$50,000–$100,000 / yearDue to continued growth, Salas O'Brien, a leader in industrial automation engineering and equipment, located in Chesterfield, Missouri has an immediate opening for a remote, experienced, creative and dynamic individual for the position of Automation Engineer. The candidate will be able to work independently but be quick to ask questions and draw upon the best Salas O'Brien, customer, and industry resources to complete work accurately and efficiently.
NewSenior Civil/Geotechnical Engineer (Mine Waste) WSP Global IncSenior Civil/Geotechnical Engineer (Mine Waste)Saint Louis, MO$86,100–$128,500 / yearScoping, directing, and reviewing complex geotechnical analyses with a focus on soil mechanics, including stability, seepage, thermal modelling; deposition modeling; and run out analyses for mine waste or water embankment dams and waste rock spoils. Leading the civil design of mine waste containment (tailings and waste rock) and heap leach facilities including initial layout and design, site selection and facility layout, geotechnical and hydrologic analyses, and preparation of design drawings and technical specifications for construction.
Geotechnical Or Civil Engineer (Senior-Level) - Underground Services SHANNON & WILSON, INC.Geotechnical Or Civil Engineer (Senior-Level) - Underground ServicesOlivette, MODesign and organize the underground services resources, including large scale tunnel/underground opening projects, conventional transportation/transit tunnels, large diameter pipeline tunnels, and the small diameter trenchless pipeline market. Committed to technical excellence and high-quality service, we provide integrated geotechnical and civil engineering, engineering geology, environmental science and natural resource services for clients.
Senior Process Manufacturing Engineer Steris PlcSenior Process Manufacturing EngineerSaint Louis, MO$92,650–$119,900 / yearServe as Subject Matter Expert (SME) providing deep technical insights into operations processes, includingchemical and biological formulation, filling, packaging, and quality operations. Apply structured, technical problem-solving methodologies such as DMAIC, six sigma green belt/black beltstatistical analysis, etc. to confirm root causes of problems.
Hotel Maintenance/Engineer Magnolia St. LouisHotel Maintenance/EngineerSt Louis, Missouri$18–$22 / hourFull timeKnowledge of and experience in building maintenance to include; plumbing, electrical, painting, carpentry repairs, heating and air-conditioning operation and maintenance, knowledge of the proper use of hand and power tools. Maintenance mechanics as well as the other members of the Engineering staff are responsible for housekeeping and cosmetics of all areas supervised by the Engineering Department.
NewNetwork Provisioning Engineer (Layer 2) Lumos Networks Corp.Network Provisioning Engineer (Layer 2)St. Louis, MO$74,340–$87,000 / yearCollege degree in Engineering or a related field and 3-5 years professional level experience; or 6+ years professional level related Engineering/Technical experience; or an equivalent combination of education and professional level related Engineering/Technical experience. About Segra: Segra owns and operates a wide and dense fiber-optic infrastructure footprint that provides state-of-the-art connectivity, cybersecurity, voice, cloud and colocation solutions, all backed by industry-leading service and reliability.
Senior Electrical Engineer LuxusSenior Electrical EngineerFenton, MOOur client, a growing Mechanical, Electrical, & Plumbing (MEP) engineering consulting firm , is seeking a Senior Electrical Engineer to support the design and delivery of electrical systems for commercial and institutional facilities. This position offers the opportunity to lead project teams, mentor junior engineers, and serve as a direct client interface , making it an excellent opportunity for someone ready to expand their leadership responsibilities.
NewERP AI Engineer - Manager PwCERP AI Engineer - ManagerSaint Louis, MO$99,000–$232,000 / yearYou will be responsible for tasks such as data collection, data cleansing, data transformation, data modelling, data visualisation, and data analysis using Oracle tools like Oracle Database, Oracle Analytics Cloud, Oracle Data Integrator, Oracle Data Visualization, and Oracle Machine Learning. As part of the Data and Analytics Engineering team, you will serve as both a technical leader and a trusted advisor to clients, combining AI/ML knowledge with business acumen to design and deliver AI solutions that drive measurable client outcomes.
NewEnvironmental Engineer 5 CDM Smith IncEnvironmental Engineer 5St. Louis, MOIn addition, during employment individuals may be required by CDM Smith or a CDM Smith client to successfully complete additional background checks, including motor vehicle record as well as drug testing. We provide career opportunities that span a variety of disciplines and geographic locations, with projects that our employees plan, design, build and operate as diverse as the needs of our clients.
NewChemical Engineer 5 CDM Smith IncChemical Engineer 5St. Louis, MOWith general direction, creates chemical formulations, processes, and equipment for water treatment plants, hazardous waste treatment and related industrial applications of basic to high complexity to meet client project requirements. In addition, during employment individuals may be required by CDM Smith or a CDM Smith client to successfully complete additional background checks, including motor vehicle record as well as drug testing.