Energy Engineer Jobs in O Fallon, IL (NOW HIRING)

• This position will offer you the opportunity to utilize and expand your civil engineering degree and skills, while working in a multi-disciplined team environment with other engineers and/or designers in the design, modification, and analysis of power plants, substations, transmission lines and similar industrial systems.
• As a member of a multi-disciplined engineering and design team, you will work on a wide range of power plant projects and perform civil site development work that includes preparing calculations, designs, and specifications.
• As a member of the Civil Engineering group, you will coordinate with project managers, client personnel, contractors and suppliers, and permitting agency personnel as necessary to ensure a complete and timely design.
• Depending on the scope of work and the complexity of the design, you may guide other civil engineers and civil designers in taking on and completing civil engineering project work.
• Your responsibilities may include the following:
  • Prepare calculations relating to storm water drainage, sanitary sewer systems, pavement thickness, ponds and landfills, and earthwork to support permitting and design.
  • Prepare technical specifications to define construction requirements.
  • Prepare site layout, grading, and drainage designs, and work with designers to accurately portray designs in 3-D models and design drawings.
  • Design storm drainage systems, roads, trackwork, water storage and wastewater disposal ponds, and solid waste landfills.
  • Review contractor and material submittal drawings and other vendor documentation for conformity with technical specifications.
  • There is the potential for you to travel to client offices for design reviews and to plant site locations for construction coordination and field verification of designs.

This position is based on a hybrid work schedule based in our Clayton, Missouri office, located within the St. Louis metropolitan area and will require in-office work 3 days per week.

We do not sponsor employees for work authorization in the U.S. for this position.

Essential skills and experience:

• This position requires a BSCE from an ABET Engineering Accreditation Commission-approved program.
• PE license or ability to earn a PE license is required.
• Five or more years of working in a project team environment in the design of industrial projects, power plant experience preferred, with specific experience in site grading and mass earthwork, storm water management, sanitary sewage systems, process wastewater systems, and road and railroad track design.
• Experience in technical writing for reports, calculations, and specifications.
• Experience in preparing, submitting, and obtaining site related permits from regulatory agencies.
• Proficiency with one or more of the following civil engineering design tools: Civil 3D, StormCad, PondPack, and AutoTurn.
• Proficiency with MS Office applications.
• Excellent written and verbal communication skills.
• The ability to work in a team environment is essential.
• This position in based in Chicago and may require occasional travel.

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.
• Leaders in these roles often direct automation and process‑improvement work, for example, how teams automate calculations, summarize technical documents, or generate design documentation and guiding when and how AI or agentic AI tools are used while ensuring results are checked.
• Overseeing engineers who program or script (e.g., Python, MATLAB, advanced Excel) to automate engineering tasks, with review of automated outputs, is valued but not required.
• We also value additional learning, such as a minor, certificate, or other experience in Computer Science, Artificial Intelligence, Software Engineering, or related fields that enables effective oversight of automation and agentic AI‑enabled engineering workflows.

At Sargent & Lundy, we care about the health and well‑being of our employees. Our commitment extends beyond the workplace, offering comprehensive healthcare plans and generous paid time off to support our team members in every aspect of their lives. We understand the importance of work‑life balance, which is why we are proud to provide competitive, award‑winning benefits. Our dedication to employee satisfaction has earned us the prestigious Top Workplaces Culture Excellence Award for compensation and benefits in 2022, 2023, and 2024.

• Health Plans: Medical, Dental, Vision
• Life & Accident Insurance
• Disability Coverage
• Employee Assistance Program (EAP)
• Back‑Up Daycare
• FSA & HSA

• 401(k)
• Pre‑Tax Commuter Account
• Merit Scholarship Program
• Employee Discount Program
• Corporate Charitable Giving Program
• Tuition Assistance
• First Professional Licensure Bonus
• Employee Referral Bonus

• Paid Annual Personal/Sick Time (PST)
• Paid Vacation
• Paid Holidays
• Paid Parental Leave
• Paid Bereavement Leave
• Flexible Work Arrangements

$84,762 - $129,498

Sargent & Lundy discloses compensation ranges that comply with all local and state regulations. The total compensation package for eligible positions will include a base salary or an hourly rate and a comprehensive benefits package, reflecting our commitment to rewarding performance and supporting the overall well‑being of our employees. Individuals may also be eligible to participate in our yearly discretionary bonus.

The Energy & Industrial Group (EIG) specializes in delivering advanced engineering solutions across various sectors, including power generation, environmental compliance, oil & gas, and industrial projects, from new plant design to plant betterment and upgrade services for operating facilities. We have designed nearly 900 conventional power plants, yielding over 100,000 megawatts (MW) of generation capacity. Our expertise includes numerous recent and ongoing combined cycle projects that leverage the latest advanced machinery, including combustion turbines, steam turbines, and heat recovery steam generators from all leading suppliers. EIG is recognized for its commitment to decarbonization through innovative technologies in renewable energy, carbon capture, and hydrogen power. We excel in detailed engineering services for photovoltaic (PV) solar projects and energy storage integration, and lead the industry in carbon capture technologies, managing projects from conceptual studies, pilot demonstrations and through commercial scale implementation for utilities and industrial plants.

Sargent & Lundy is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, national origin, disability status, protected veteran status, or any protected status as defined by applicable law.