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Hydro Engineering Jobs in O Fallon, IL (NOW HIRING)

From field engineering to project management to quality and startup, you'll work with cuttingedge ... hydro facilities, tunnel construction, waterway, and marine construction. Please note: This is a ...

Technician

O Fallon, IL · On-site

$15 - $25/hr

Capable of: * * understanding engineering drawings and associated bills of material * bending and ... Ability to physically control industrial hydro-blasting and vacuum equipment * Ability to carry ...

Estimator

Creve Coeur, MO · Hybrid

$107K - $190K/yr

From field engineering to project management to quality and startup, you'll work with cuttingedge ... dams and hydro facilities, tunnel construction, waterway, and marine construction. Key ...

Hydro Engineering information

See O Fallon, IL salary details

$12

$29

$53

How much do hydro engineering jobs pay per hour?

As of Aug 11, 2026, the average hourly pay for hydro engineering in O Fallon, IL is $29.43, according to ZipRecruiter salary data. Most workers in this role earn between $18.85 and $35.43 per hour, depending on experience, location, and employer.

How much do hydro engineering engineers make?

Hydro engineering engineers typically earn a median annual salary of around $70,000 to $100,000, depending on experience, education, and location. Salaries can increase with specialized skills, certifications, and working in high-demand regions or industries such as renewable energy or water resource management.

What is hydro engineering?

Hydro engineering, also known as hydraulic engineering, is a branch of civil engineering focused on the flow and conveyance of fluids, primarily water. It involves the design, construction, and maintenance of structures such as dams, canals, levees, floodways, and water treatment plants. Hydro engineers work to manage water resources, prevent flooding, and ensure the safe supply of water for various uses including agriculture, industry, and municipalities. This field plays a crucial role in sustainable development and environmental protection.

What are the key skills and qualifications needed to thrive as a hydro engineer, and why are they important?

To thrive as a Hydro Engineer, you need a solid background in civil or environmental engineering, hydrology, and project management, usually supported by a relevant engineering degree and professional licensure. Expertise with design and simulation software such as AutoCAD, HEC-RAS, and GIS, along with familiarity with regulatory standards, is typically required. Strong problem-solving, teamwork, and communication skills help Hydro Engineers effectively collaborate and manage complex projects. These abilities are crucial for designing safe, efficient water infrastructure and ensuring compliance with environmental and safety regulations.

What does a hydro engineering do?

A hydro engineer designs, develops, and maintains systems related to water resources, such as dams, pipelines, and hydroelectric power plants. They analyze water flow, conduct environmental impact assessments, and use engineering tools like CAD software to ensure efficient and sustainable water infrastructure. Strong knowledge of fluid mechanics, environmental regulations, and project management are essential in this field.

What are some common challenges faced by hydro engineers when working on large-scale water infrastructure projects?

Hydro engineers working on large-scale water infrastructure projects often encounter challenges such as managing complex environmental regulations, coordinating with multidisciplinary teams, and ensuring the sustainability of water resources. Additionally, they must address technical issues like sediment control, structural integrity under varying water conditions, and integration with existing infrastructure. Effective communication and project management skills are essential for overcoming these hurdles and delivering successful outcomes.

What is the difference between Hydro Engineering vs Civil Engineering?

AspectHydro EngineeringCivil Engineering
Required CredentialsBachelor's in Civil, Environmental, or Hydraulic Engineering; Professional Engineer (PE) license often preferredBachelor's in Civil Engineering; PE license common for advanced roles
Work EnvironmentField sites near water bodies, dams, hydroelectric plants, and water treatment facilitiesConstruction sites, urban planning projects, infrastructure development
Industry UsageSpecialized in water resources, hydroelectric power, and water management projectsBroad industry applications including transportation, structural, environmental, and water projects

Hydro Engineering focuses specifically on water-related projects like dams and hydroelectric systems, requiring specialized knowledge of hydraulics and water resources. Civil Engineering covers a wider range of infrastructure projects, including roads, bridges, and water systems, often overlapping in water-related work but with broader scope. Both roles require similar credentials but differ in specialization and work environment.

What cities near O Fallon, IL are hiring for Hydro Engineering jobs? Cities near O Fallon, IL with the most Hydro Engineering job openings:
Infographic showing various Hydro Engineering job openings in O Fallon, IL as of August 2026, with employment types broken down into 91% Full Time, 4% Part Time, 4% Contract, and 1% Nights. Highlights an 86% Physical, 5% Hybrid, and 9% Remote job distribution, with an average salary of $61,215 per year, or $29.4 per hour.

Senior Mechanical Engineer - Power (Multiple Locations)

Burns & McDonnell

Saint Louis, MO • On-site

$101K - $134K/yr

Full-time

Retirement

Re-posted 6 days ago


Burns & McDonnell rating

8.7

Company rating: 8.7 out of 10

Based on 50 frontline employees who took The Breakroom Quiz

3rd of 80 rated construction


Job description

Description
Burns & McDonnell is seeking to hire a Senior Mechanical Engineer to support our Power global practice. The Senior Mechanical Engineer will lead mechanical design project teams to create world class designs for both new and existing power generation facilities. These design projects will enhance power production at several types of facilities including traditional gas generation (simple cycle, combined cycle, reciprocating engines), renewable generation (solar thermal, solar photovoltaic, hydro, hydrogen) and energy storage (lithium-ion batteries, flow batteries). The Senior Mechanical Engineer will lead the project team throughout the design, procurement, and construction process, adapting mechanical plans according to budget constraints, design factors or client needs.
Job Duties:
  • Lead mechanical design of projects from the conceptual phase through design completion for project needs and requirements that are set forth by the project managers.
  • Applies expert knowledge of commonly used mechanical concepts, practices, codes and procedures within the mechanical engineering services industry.
  • Calculate size requirements of mechanical equipment and material to develop procurement specifications, lists, datasheets and drawings.
  • Review mechanical supplier or mechanical contractor quotes, complete technical bid summaries, and write purchase recommendations.
  • Develop mechanical engineering design documents including design notes, calculations, reports, flow modelling summaries, process flow diagram, piping and instrumentation diagrams, sketches, plan drawings, section drawings, isometrics, pipe supports, datasheets, details, specifications, 3D model routing recommendations, and other related documents.
  • Quality review of mechanical engineering design completed by co-workers.
  • Review mechanical supplier documents for conformance to design specifications; providing documents or drawing redlines as required.
  • Review construction contractor submittals and answer technical requests for information during their procurement and construction activities.
  • Leading site trips for data collection, field inspections, construction review, commissioning support, factory acceptance testing support, or construction support services for both public and private clients.
  • Prepare and present technical reports for clients and industry publications.
  • Build effective relationships with existing clients, customers and contractors and develop new business opportunities. Responsible for ensuring customer satisfaction goals and expectations are met.
  • Participate sales and marketing efforts and identify key pursuits.
  • Participate in development of project schedule, scope, budget, staffing, and project planning.
  • Lead the development of cost proposals and qualification statements to achieve stated targets and standards for financial performance.
  • Prepare and present project budgets and cost estimates. Report on project performance.
  • Responsible for effective management of engineering scope changes and notice of schedule and budget impacts to the project manager and/or client. Accountable for managing mechanical budget on projects.
  • Provide leadership, guidance, and instruction to the mechanical engineering practice. Mentor and guide less experienced engineers.
  • Applies knowledge and experience to complex projects, find non-standard design solutions.
  • Responsible for QA/QC process adherence.
  • Responsible for effective communication with other engineering disciplines.
  • Responsible for compliance with company and site safety policies.
  • All other duties as assigned.

Qualifications
  • Bachelor of Science in Mechanical Engineering or related degree from an ABET-accredited program. Or Bachelor of Science in Mechanical or related Engineering Technology from an ABET-accredited program and successful completion of Fundamentals of Engineering (FE) exam.
  • Master of Science degree in Mechanical Engineering a plus.
  • 7 years mechanical engineering experience. EPC project experience preferred.
  • Professional Engineering License (PE) strongly preferred.
  • Expert knowledge in standard engineering techniques and procedures. Strong knowledge of mechanical equipment design codes (ASME, ANSI, API, PIP, NACE).
  • Proficient computer skills (e.g. Microsoft Office Suite). Additional software skills including AFT Fathom, Bluebeam, AutoCAD, MicroStation, Smartplant, and other 3D rendering programs preferred.
  • Excellent written and verbal communication skills.
  • Experience with leading the discipline design for large projects and delegating work tasks to team members. Ability to lead execution of work and resolve issues in a team environment.
  • Demonstrated critical thinking skills, ability to work methodically and analytically in a quantitative problem-solving environment.
  • Strong attention to detail, facilitation, team building, collaboration, organization and problem-solving skills.
  • Ability to perform quality reviews for detailed engineering documents and specifications.
  • Ability to travel.

Compensation
$145,000.00-220,000.00 Yearly
The expected compensation range for this position is displayed in compliance with all local/state regulations. The expected compensation range for this position is based on a number of factors, including but not limited to: individual education, qualifications, prior work experience and work location. The total annual compensation package will consist of a base salary and eligibility to participate in our discretionary year-end incentive bonus program.
Benefits
Our extensive benefits package takes care of you so that you can focus on doing great work. From insurance and disability to time off and wellness programs, we provide the tools to meet your needs. As part of being 100% employee-owned, eligible employees participate in our Employee Stock Ownership Plan (ESOP) in addition to our 401(k) retirement program. For more information, please visit the Benefits & Wellness page.
This job posting will remain open a minimum of 72 hours and on an ongoing basis until filled.
EEO/Disabled/Veterans
Job Mechanical Engineering
Primary Location US-MO-Kansas City
Other Locations US-MO-Saint Louis, US-CO-Denver, US-MI-Detroit, US-IL-Chicago, US-OH-Columbus
Schedule: Full-time
Travel: Yes, 25 % of the Time
Req ID: 262209
Job Hire Type Experienced #LI-JJ #PWR

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About Burns & McDonnell

Sourced by ZipRecruiter

Burns & McDonnell assists clients of all sizes and industries by providing extensive physical services ranging from assessments, integrated security solutions, and large security architecture designs. Services we typically provide include security and safety system design, threat, risk, and vulnerability assessments, security surveys, security master planning, compliance to federal security programs, independent validation and verification of integrated security system operations, management of installation and maintenance, and staff augmentation to develop and implement facility management and protection processes.

Industry

Civil engineering construction

Company size

10,000+ Employees

Headquarters location

Kansas City, MO, US

Year founded

1898

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