57 Results for

Engineering Jobs in O Fallon, IL

Jobs

New!

Hazelwood, MO1 day ago

$149,600–$232,300 Per Year

Candidates must have at least one year of experience in a leadership role (team leader, temp manager, large scale cross functional project/program management, or formal manager experience) OR have completed the Boeing internal course “Exploring Leadership.”. The Boeing Company also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work.

New!

Hazelwood, MOToday

$140,000–$172,000 Per Year

Candidates must have at least one year of experience in a leadership role (team leader, temp manager, large scale cross functional project/program management, or formal manager experience) OR have completed relevant internal Boeing or external coursework to demonstrate the knowledge. We also provide eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work.

New!

Berkeley, MO1 day ago

$198,900–$269,100 Per Year

The Boeing Company also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work. This role includes oversight of the Systems Engineering, Integration & Test (SEIT) teams supporting the Aircrew and Maintenance training for a variety of platforms in the Air Dominance (AD) portfolio: including the F-15 (Eagle), F/A-18 (Hornet), T-7 (Redhawk), T-45 (Goshawk), MQ-25 (Stingray), and Proprietary platforms.

New!

Berkeley, MO1 day ago

$141,100–$190,900 Per Year

The Boeing Company also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work. Candidates must have at least one year of experience in a leadership role (team leader, temp manager, large scale cross functional project/program management, or formal manager experience) OR have completed the Boeing internal course “Exploring Leadership”.

New!

Berkeley, MO1 day ago

$160,650–$217,350 Per Year

Candidates must have at least one year of experience in a leadership role (team leader, temp manager, large scale cross functional project/program management, or formal manager experience) OR have completed the Boeing internal course “Exploring Leadership”. The Boeing Company also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work.

New!

St. Louis, MOToday

$125,000–$155,000 Per Year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Represent the Firm in Client Meeting; Supervise Projects from Concept through Completion; Serve as the Technical Lead Delegating work and Mentoring Staff; Provide Design Review and QA/QC.

New!

St. Louis, MOToday

$100,000–$125,000 Per Year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. If you have a passion for mechanical systems, a knack for project management, and a desire to play a leading role in the delivery of high-quality construction projects, we would love to hear from you.

New!

St. Louis, MOToday

$140,000–$170,000 Per Year

You will focus on the development and implementation of Best-In-Class operations within our Industrial Business Unit of subject matter experts, engineers, estimators, and integrated constructability personnel to consistently deliver as a Solutions Provider that exceeds client expectations. In this role, you will have the opportunity to work with external engineering firms, members of our interdisciplinary engineering team, estimators, schedulers and construction experts, all working to develop the best possible collaborative delivery of project development to our clients.

New!

Fenton, MOToday

$67,000–$100,000 Per Year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Installation & Commissioning: Install and commission press systems at customer sites, ensuring proper operation and compliance with specifications.

New!

Berkeley, MO1 day ago

$160,650–$217,350 Per Year

Candidates must have at least one year of experience in a leadership role (team leader, temp manager, large scale cross functional project/program management, or formal manager experience) OR have completed the Boeing internal course “Exploring Leadership". The Boeing Company also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work.

New!

St. Louis, MO6 days ago

$110,000–$150,000 Per Year

With a team of approximately 140 dedicated employees, the plant plays a vital role in delivering high quality products while maintaining a strong focus on safety, operational excellence, and teamwork. ICL leverages its unique bromine, potash and phosphate resources, its global professional workforce, and its sustainability focused R&D and technological innovation capabilities, to drive the company's growth across its end markets.

St. Louis, MO30+ days ago

Full-time

Louis and a woman-owned, minority-owned boutique firm, delivering impactful engineering solutions in a workplace where people feel valued and empowered to grow. We are seeking a Transmission & Distribution Engineering Manager to lead engineering teams supporting electric utility transmission and distribution projects.

Bridgeton, MO17 days ago

Guide team in troubleshooting and resolving design issues and analyze design updates to resolve manufacturing and supply chain issues in a timely manner while preserving product quality. As the Manager, Product Improvement Engineering: you will lead a cross-functional engineering team responsible for driving product performance and customer satisfaction throughout the post-launch product lifecycle.

Saint Louis, MO27 days ago

Bachelor’s degree in Engineering with 7+ years in aluminum extrusion or process manufacturing. Strong knowledge of extrusion processes, equipment, and finishing operations.

St. Louis, Missouri30+ days ago

Remote

The Civil Engineering Project Manager is responsible for overseeing, planning, coordinating, and executing multiple civil engineering projects from inception through completion. This position requires a high level of self-motivation, problem-solving ability, and the application of broad engineering knowledge across diverse civil engineering assignments.

St. Louis, MO30+ days ago

Requirements include a background in computer aided design within the civil engineering realm or a B.S. in civil engineering from an accredited college or university, with an interest in design of highways, local streets, bridges, sanitary and storm sewer, site developments, and water distribution systems. If you are a qualified individual and interested in applying for this position, apply via our website www.impactrecruitment.com, email us at info@impactrecruitment.com or call us at (805)-371-2666 for more information.

University City, MO30+ days ago

The Project Manager II performs complex administrative and professional work in planning, organizing, directing, and supervising Public Works and Parks operations, projects, and programs. adherence to plans and specifications; checks lines and grades from surveyor's stakes; keeps records of progress; makes inspections of concrete and asphalt work/facilities.

St Louis, Missouri25 days ago

$104,000–$166,000 Per Year

Responsibilities: Peraton is prime contractor for the NEE program which is a SE&I services contract which include: project engineering, architecture engineering, requirements engineering and interface definition, schedule planning and analysis, security engineering, systems/segments development product ownership, systems integration/test & verification, enterprise risk and readiness management, transition to operations, and operational validation and capability and product improvements. Master’s in Systems Engineering or in related technical or scientific fields such as engineering, physics, mathematics, operations research, engineering management, Computer Science, Information Technology, Management Information Systems, or related STEM degree program.

St. Louis, MO7 days ago

Working knowledge of security tools and capabilities including but not limited to Endpoint Detection and Response (EDR), Endpoint Privilege Management (EPM), Application Control, Security Information and Event Management (SIEM), Security Orchestration, Automation and Response (SOAR), Cloud Security Posture Management (CSPM), Cloud Workload Protection (CWP), Data Loss Prevention (DLP), Security Event Monitoring, User Behavior Analytics, Vulnerability Scanning, and Penetration Testing. Louis, Enterprise Mobility together with its affiliate Enterprise Fleet Management manages a diverse fleet of 2.4 million vehicles and accounted for nearly $39 billion in revenue through a network of more than 9,500 fully-staffed neighborhood and airport rental locations in more than 90 countries and territories.

Creve Coeur, Missouri30+ days ago

7+ years of experience in project management managing integrated project teams in one of the following sectors: Engineering, Construction, Facilities Management, or Energy. Develop an internal Work Plan to define revenue, hours budget, internal cost budget, travel budget, subconsultant budget and estimate reimbursable amounts.

Saint Louis, MO26 days ago

Bachelor’s degree in Engineering with 7+ years in aluminum extrusion or process manufacturing. Strong knowledge of extrusion processes, equipment, and finishing operations.

Fayetteville, IL30+ days ago

This role is responsible for driving equipment reliability, executing capital projects, and leading a multi-layered organization in a high-volume production environment. Job Summary:The Director of Plant Engineering leads all maintenance, engineering, and reliability functions for a large-scale food manufacturing facility (~1M sq.

Maryland Heights, MO30+ days ago

We are committed to providing a stable, engaging work environment where employees can grow their skills, contribute to impactful projects, and be part of a team that takes pride in technical excellence, collaboration, and customer-focused solutions. From system design and technical analysis to customer support and solution development, our engineers work closely with internal teams and clients to ensure solutions meet performance, quality, and project requirements.

St Louis, Missouri30+ days ago

The preferred candidate should embody an entrepreneurial mindset and possess a comprehensive grasp of engineering, design principles, and specifications pertaining to power systems utilized in utility transmission and distribution projects. This position requires the individual to lead high-level positioning activities along with identifying and pursuing project opportunities while developing, expanding, and deepening client relationships for the company and growing the business.

St. Louis, Missouri30+ days ago

St. Louis, MO26 days ago

Contractor

The Construction Quality Engineer will be responsible for ensuring the quality of construction processes and materials used in projects. Collaborate with project managers, engineers, and contractors to address quality issues and implement corrective actions.

Berkeley, MO30+ days ago

Bachelor of Science degree from an accredited course of study in engineering, engineering technology (includes manufacturing engineering technology), chemistry, physics, mathematics, data science, or computer science. Position Responsibilities: Research and builds knowledge of Boeing and engineering design principles in order to develop solutions to product/process issues for production or simple technical in-service issues.

Clayton, Missouri30+ days ago

$164,580–$253,020 Per Year

This position will offer you the opportunity to manage project team(s) consisting of engineers, designers, estimators, controls and scheduling professionals involved in the design, modification, and analysis of new and existing high voltage substations. You will work on challenging assignments from individual projects, large projects, major programs, to large scale engineering only, Engineer Procure and EPC projects.

New!

Saint Louis, MO2 days ago

The position offers 40 scheduled hours per week in the Operations & Facilities Management Department, supporting the maintenance and operation of over 65 buildings and critical infrastructure. Requires a bachelor’s degree or equivalent experience (10+ years), a valid driver’s license, and relevant leadership experience.

O'Fallon, Illinois30+ days ago

Software development support: configure/operate/maintain program support tools; assist software license management; analyze help desk tickets; support ad hoc reporting; research HW/SW solutions; support testing of upgrades; coordinate with orgs to address engineering issues; support interoperability certification/assessment processes. Agile development management: support agile delivery processes; organize ceremonies and processes; manage backlogs; gather stakeholder feedback; update requirements tools/workflows; support test/validation/verification activities.

New!

St. Louis, MO4 days ago

In this time of rapid change, as technologies expand at lightning speed, RISA seeks to remain at the forefront - applying them in unique ways to address our customers' challenges and providing our employees with engaging career opportunities. While performing the duties of this job, the employee is regularly required to sit, stand, talk, hear, and use hands and fingers to operate a computer and telephone.

Bridgeton, Missouri11 days ago

For over a century, Hussmann Corporation has been a global leader in commercial refrigeration equipment — delivering solutions that meet the demands of the modern food retailing industry. Louis, MO, Hussmann offers a diverse range of products and connected solutions designed to enhance operational efficiency, optimize visibility of merchandise, and keep food fresh.

St. Louis, MO30+ days ago

Full-time

Louis and a woman-owned, minority-owned boutique firm, delivering impactful engineering solutions in a workplace where people feel valued and empowered to grow. Weekly happy hours, team lunches, a stocked kitchen, dogs in the office, and a relaxed dress code help create a workplace where people genuinely enjoy showing up.

Saint Louis, MO15 days ago

Full-time

What You’ll DoAs a Design Engineer III, Substation Engineering, you will play a key role in delivering high-quality substation engineering solutions for clients across the U.S. You’ll contribute to complex energy infrastructure projects while collaborating with multidisciplinary teams and building your path toward technical leadership. EPS Engineering Services, a member of the Asplundh federation of companies, is hiring for a Design Engineer III, Substation Engineering, for our Maryland Heights, MO location!

New!

St. Louis, MO5 days ago

The ideal candidate will provide technical leadership in advancing project objectives, collaborate within multidisciplinary teams, and support project delivery from concept through completion. This position requires strong technical judgment and accountability for assigned work including adherence to project schedules and budget constraints.

New!

Berkeley, MO6 days ago

Manufacturing Engineering performs Design for Manufacturing and Assembly (DFMA) analysis and develops an integrated build plan consisting of work instructions for assembly/fabrication, kitting, tooling, inspection requirements, and other outputs to ensure fabrication meets design, test, and program requirements. As part of this team, you will have the opportunity to work on the latest military weapons and aircraft programs, such as: T-7A Redhawk, MQ-25A Stingray, various Phantom Works programs, various Boeing Weapons programs, and our legacy programs like F-15 and F/A-18 into the future.

Creve Coeur, Missouri30+ days ago

$103,175–$132,765 Per Year

We strive to create a workplace where every voice is heard and valued, fostering a collaborative environment where diverse perspectives drive our success. With over 100 years of experience, we are a pillar of stability in the energy infrastructure industry and a leader in innovative energy solutions.

Bridgeton, MO7 days ago

As a family-owned, American-made company, Hunter is the global leader in automotive service equipment, with our products used in over 130 countries by top vehicle manufacturers, tire companies, and service centers. Must be a proactive, creative self-starter, proficient with CAD (Creo preferred), and have experience with mechanism design, analysis, machined metal parts, material and heat treat.

Nashville, IL19 days ago

St. Louis, MO30+ days ago

This role is part of a team that is responsible for applying technical expertise in the development of Instrumentation & Controls (I&C) equipment design specifications and document deliverables to satisfy Customer requirements, minimize risk, and ensure product integrity for Heat Recovery Steam Generators (HRSGs). Ability to read, write, problem solve, make quick decisions, interpret data and analyze results; effective written and verbal communication is essential.

St. Louis, MO30+ days ago

Clayco’s Service Delivery Team is not your average IT support center: our team members are highly motivated, technically proficient, difference-makers that consistently deliver a white-glove experience to our Clayco team members (including our Executive staff) in need of technical support. 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.

Power Plant, Illinois30+ days ago

$90,000–$140,000 Per Year

This position will have accountability and responsibility for a variety of mechanical systems in the Power Plant such as: Boiler Fans, Boiler Feed Pumps, Circulating Water Pumps, Condensate Pumps, Scrubber Recycle Pumps, Various Vertical Turbine Pumps, other large rotating equipment, and other systems assigned as necessary. Lead and/or participate in any plant Root Cause Failure Analysis (RCFA) and Failure Modes Effects Analysis (FMEA) processes involving the systems listed above to ensure corrective actions, repairs, and or modifications are appropriate and timely in their execution.

St. Louis, MO30+ days ago

Inspects sites/products/equipment; performs analysis of commercial and non-commercial equipment; determines cause and origin of damage; performs mechanical engineering analysis and calculations; prepares sketches as required. Work requires continual attention to detail with the ability to define problems, collect data, establish facts, perform analysis, and draw valid conclusions in accordance with industry practices and the scientific method.

St. Louis, MO19 days ago

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. This role sits at the intersection of IT and field operations ensuring that critical technology infrastructure such as networking, AV, jobsite connectivity, and end-user environments are delivered reliably, efficiently, and aligned with project timelines.

Clayton, Missouri30+ days ago

$118,023–$180,313 Per Year

7+ years of experience in the design of mechanical engineering systems for non-commercial, heavy industrial plants (power, oil & gas, or chemical), with a focus on integrated, detailed system design for new plants, modifications, or replacements; Experience must include the selection of equipment, piping materials, control philosophy, and the preparation of performance sizing calculations and specifications. AI & Automation at Sargent & Lundy: In this role, we expect people to be willing or able to lead others who use modern tools: You are expected to lead others in taking engineering problems from issue to solution by setting expectations for using data and modern tools such as automation and AI to improve workflows, reduce rework, and deliver cost-effective designs.

East St. Louis, Illinois30+ days ago

$100,000–$120,000 Per Year

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.

Fenton, MO30+ days ago

Control Devices, LLC ("Control Devices" or "CD") is a leading designer & manufacturer of high-quality flow control valves, condensate removal traps, related components & accessories serving the compressed air, pressure washer, vehicle systems, fire protection, specialty gas, & the industrial, agricultural & food service float valve markets. The Company fosters an extremely dynamic work environment which requires this candidate to have a high mechanical and electrical aptitude while demonstrating very strong interpersonal skills.

Edwardsville, IL25 days ago

$26–$27 Per Hour
Contractor

Our diverse team of skilled professionals supports clients from the ground to the cloud, offering everything from underground construction and engineering to advanced technology, security, and IT solutions. The GIS Technician - Contract Mapping Support plays a critical role in fulfilling a specific client contract by providing accurate, timely, and professional GIS mapping updates.

Bridgeton, MO27 days ago

Coordinate with the Validation Engineering Team to execute test plans, test procedures, and validation strategies for Hunter Engineering products including new hardware, embedded systems, firmware, and application software. Lead day-to-day hardware and software activities for the Alpha Test Engineering Team; provide technical leadership and development for Test Engineers and Test Technicians.

New!

Creve Coeur, Missouri4 days ago

Work independently on your own shift to operate, maintain, and repair (except when specific maintenance and repairs are performed by contractors) all electrical, mechanical, HVAC, Fire Life Safety and MEP equipment as outlined by Management including, but not limited to other duties: Maintain and repair architectural systems and plumbing systems including, but not limited to other duties. Facilities serviced by CONTINUUM have earned such prestigious accolades as the ENERGY STAR® for superior energy performance, BOMA’s Office Building of the Year® (TOBY) Award and CEL’s National Real Estate “A” List Award for Service Excellence.

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Engineering Jobs in O Fallon, IL

Boeing Global Services Software Quality Engineering Manager Boeing

Software Engineering Manager Boeing

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Software Engineering Manager (Level K) Boeing

Sr. Mechanical Engineer P.E. Jobot

Mechanical Project Manager Jobot

Project Manager - St. Louis Developer Jobot

Mechanical Service Engineer Jobot

T-7 Mission Systems Software Manager Boeing

Engineering Manager ICL

Transmission & Distribution Engineering Manager LUZCO Technologies

Product Improvement Engineering Manager Hunter Engineering Company

Engineering Manager / Assistant Plant Manager SANINC

Civil Engineering - Project Manager REMOTE ST Velocity Search Group

Civil Engineering Technician/CAD Technician Impact Recruitment

Project Manager II - Civil Engineering City of University City

Manager, Systems Engineering Peraton

IT Senior Manager - Workforce Technology Security Engineering Enterprise Holdings

Project Manager III - Engineering ENFRA LLC

Engineering Manager / Assistant Plant Manager Saninc

Director of Plant Engineering Sterling Engineering, Inc.

Apply to Arizon Companies Engineering Team Arizon Companies

Senior Project Manager I - Transmission & Distribution Engineering Bartlett & West

Electrical Engineering Associate I RS&H

Engineering Skilled Trade Expert 2 Apidel Technologies

62E-Liaison Engineering Apollo Professional Solutions

Senior Engineering Manager - Grid Sargent & Lundy

Director, Facilities Engineering & Maintenance - OFMD Washington University in St. Louis

Software Engineering Lead Amyx, Inc.

Cybersecurity Engineering Specialist III RISA

Intern – Design Engineering Hussmann Corporation

Transmission & Distribution Engineering Supervisor (Line Design) LUZCO Technologies

Design Engineer III, Substation Engineering Asplundh Engineering Services, LLC

Mechanical Engineer Intermediate Level PENTA Engineering Corporation

Mechanical Engineer Apollo Professional Solutions

Mechanical Engineer PE I ENFRA LLC

Mechanical Engineer III Hunter Engineering Company

Maintenance Technician Davron LLC

Instrument & Mechanical Project Engineer Nooter/Eriksen

Service Delivery Technician Clayco

Mechanical Engineer - Rotating Equipment - Power Plant Prairie State Energy Campus

Mechanical Engineer Rimkus

Field Support Project Manager Clayco

Lead Mechanical Engineer -- Energy & Industrial Group Sargent & Lundy

Mechanical Maintenance Engineer Chemtrade

Manufacturing Engineer Control Devices LLC

GIS Technician-Temporary Utilitra

Lead Test Engineer Hunter Engineering Company

Building Engineer Continuum Services

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