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Engineer Jobs in O Fallon, MO (NOW HIRING)

CDG Engineers, Inc.

Electrical Engineer

Saint Louis, MO · Hybrid

Description As an Electrical Engineer at CDG Engineers, you will be a key player in developing innovative solutions to complex engineering challenges. You will work independently and as part of a ...

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Prairie Engineers

Electrical Engineer

Hazelwood, MO · On-site

$75K - $150K/yr

Prairie Engineers is the place to be for Engineers looking to grow and excel! Join a collaborative team that fuels your growth and rewards your dedication. We're a team looking to make a lasting ...

DMC Engineering

Electrical Engineer

Saint Louis, MO · Hybrid

$120K/yr

As an Electrical Engineer, you will be responsible for creating a complete electrical design package, including BOM, layout, loop wiring diagrams, and single-line diagrams. Additionally, you will be ...

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Showing results 1-20

All JobsEngineer JobsEngineer Jobs in O'Fallon, MO

Engineer information

See O Fallon, MO salary details

$36.5K

$95.2K

$128.6K

How much do engineer jobs pay per year?

As of Aug 8, 2026, the average yearly pay for engineer in O'Fallon, MO is $95,187.00, according to ZipRecruiter salary data. Most workers in this role earn between $78,600.00 and $109,000.00 per year, depending on experience, location, and employer.

What is an engineer?

Engineers design, build, and maintain the functional aspects of a product, structure, or system for their specific engineering industry. Their specific job description relates to all of the detailed tasks, responsibilities, skills, and education requirements that a company or organization requires for their engineering specialty. For example, electrical engineers develop, monitor, and test electrical systems. Civil engineers design, construct, and maintain large infrastructure projects, such as highways, bridges, and airports. Many engineers begin their career with an internship or apprenticeship while they are still in school, and then acquire an entry-level position. As they learn more about the industry, engineers are given their own projects and more responsibility.

What kind of jobs do engineers do?

Engineers design, develop, and test systems, structures, or products across various fields such as civil, mechanical, electrical, software, and chemical engineering. They often work in offices, labs, or construction sites, using technical skills, problem-solving, and tools like CAD software or testing equipment. Many engineering roles require relevant certifications and a strong understanding of mathematics and science.

How do engineers typically collaborate with other departments during a project?

Engineers often work closely with professionals from various departments such as product management, design, and quality assurance to ensure project requirements are met. Collaboration usually involves regular meetings to align on goals, discuss technical constraints, and review progress. Effective communication and teamwork are key, as engineers may need to translate complex technical concepts for non-technical colleagues and incorporate feedback from different stakeholders. This cross-functional approach helps ensure that projects are delivered efficiently and meet all necessary standards.

What are the key skills and qualifications needed to thrive as an engineer?

To thrive as an Engineer, you need a solid background in mathematics, problem-solving, and engineering principles, typically supported by a relevant bachelor’s degree. Familiarity with industry-specific software such as CAD tools, simulation platforms, and, in some fields, certifications like FE or PE is often required. Strong communication, teamwork, and critical thinking skills set exceptional engineers apart. These abilities ensure effective project delivery, innovative solutions, and smooth collaboration in technical environments.

What does an engineer do?

An engineer applies principles of science and mathematics to develop solutions for technical problems. They design, build, and test products, systems, or structures while considering efficiency, safety, and cost. Engineers can work in a variety of fields such as civil, mechanical, electrical, and software engineering, each with its own specialized focus. Their work often involves teamwork, problem-solving, and the use of advanced technology.

What is the difference between Engineer vs Technician?

AspectEngineerTechnician
Required CredentialsBachelor's degree in engineering or related fieldTechnical diploma or associate degree
Work EnvironmentDesign, planning, analysis, project managementInstallation, maintenance, troubleshooting
Industry UsageDesign firms, manufacturing, constructionField service, manufacturing plants, maintenance teams
Common Search/ComparisonEngineer vs Technician

Engineers typically hold a bachelor's degree and focus on designing, analyzing, and managing projects. Technicians usually have technical diplomas and handle hands-on installation, maintenance, and troubleshooting. While engineers plan and oversee, technicians implement and support. Both roles are essential in engineering projects, but they differ in education, responsibilities, and work environment.

More about Engineer jobs
What are the most commonly searched types of Engineer jobs in O'Fallon, MO? The most popular types of Engineer jobs in O'Fallon, MO are:
What are popular job titles related to Engineer jobs in O'Fallon, MO? For Engineer jobs in O'Fallon, MO, the most frequently searched job titles are:
What cities near O'Fallon, MO are hiring for Engineer jobs? Cities near O'Fallon, MO with the most Engineer job openings:
Engineer jobs near you
Infographic showing various Engineer job openings in O'Fallon, MO as of August 2026, with employment types broken down into 74% Full Time, 13% Part Time, and 13% Contract. Highlights an 96% In-person, 2% Hybrid, and 2% Remote job distribution, with an average salary of $95,187 per year, or $45.8 per hour.

Electrical Engineer

One Tech Engineering

Saint Louis, MO

Full-time

Re-posted 21 days ago

Job description

One Tech Engineering is searching for an Electrical Engineer for a position located in St. Louis, Missouri. The Electrical Engineer will be responsible for substation engineering and consulting services for clients across the US and internationally.

The candidate must be a US Citizen or a green card holder, the position is not eligible for sponsorship. The candidate should have a Bachelor's Degree in Electrical Engineering or a related degree and 3 years of electrical engineering experience.

Local candidates preferred or open to relocation. This is not a remote position.

Electrical Engineer Responsibilities:

  • Develop proposals and scopes of work, including conceptual designs and execution plans.
  • Prepare engineering cost estimates, labor estimates, and project schedules.
  • Complete physical substation design such as yard layouts, plans, sections, grounding systems, lightning protection, control building arrangements, interior/exterior raceways, auxiliary AC/DC power systems, and bills of material.
  • Perform protection and control (P&C) design, including panel arrangements, one-line/single-line diagrams, three-line diagrams, AC schematics, DC elementaries, equipment wiring, and relay panel wiring.
  • Prepare calculations and technical reports for engineering studies (e.g., grounding, lightning protection, AC/DC load studies).
  • Develop equipment specifications for procurement and support factory acceptance testing (FAT).
  • Coordinate design activities with cross-functional teams (Civil/Structural, Networks, Transmission Line, etc.).
  • Provide guidance, mentorship, and technical support to junior team members.
  • Collaborate and communicate regularly with clients and external stakeholders.
  • Perform quality assurance reviews of designs prepared by engineers and designers.
  • Provide short-term field support during construction phases.
  • Support business development and marketing efforts as needed.
  • Potential additional involvement in relay settings, 3D/intelligent design, or participation in industry/professional technical committees.
  • Perform other duties as assigned.

Requirements of the Electrical Engineer:

  • Bachelor's Degree in Electrical Engineering or related degree from an ABET-accredited program and 3 years of electrical engineering experience, consulting preferred.
  • Or a Bachelor's Degree in Electrical or related Engineering Technology from an ABET-accredited program and successful completion of Fundamentals of Engineering (FE) exam and 3 years of electrical engineering experience, consulting preferred.
  • Or a Master's Degree in Electrical Engineering and 2 years of electrical engineering experience, consulting preferred.
  • Strong knowledge in standard engineering techniques and procedures.
  • Excellent written and verbal communication skills.
  • Ability to work methodically and analytically in a quantitative problem-solving environment and demonstrated critical thinking skills.
  • Proficient in standard engineering techniques and procedures.
  • Strong computer skills. (e.g. Microsoft Office Suite)
  • Strong computer skills include AutoCAD, MicroStation, 2D and 3D rendering programs and other analysis programs.
  • Strong attention to detail, facilitation, team building, collaboration, organization and problem-solving skills.
  • Engineers in Training-EIT Certification preferred.