Mechanical Engineer 3 - Nuclear

Sargent & Lundy • Chicago, IL • 4h ago

Description

This position is based on a hybrid work schedule and will require in-office work 3 days per week.

This position will offer you the ability to directly apply your knowledge of thermodynamics, heat transfer, fluid mechanics, and power plant engineering

You will be preparing calculations, evaluations, and technical reports to support client recommendations and reviews, and will additionally conduct equipment sizing, optimization evaluation, and selection in response to project needs

While supporting project teams with other Mechanical Engineers, you will be involved in system engineering, including the design, modification, and analysis of power plant mechanical systems

There is the potential for you to travel to client and vendor offices for design reviews and to plant site locations for meetings and field verification of designs

Qualifications

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

Essential skills and experience:

Bachelor's or Master's of Science degree in Mechanical Engineering, with a strong academic background and interest in thermodynamics, heat transfer, fluid mechanics, and thermal systems

A minimum of 3 years of experience

Knowledge of the practical application of mechanical engineering and technology including applying systems, principles, techniques, procedures, and equipment to a project design

Knowledge of design techniques, tools, and principles involved in the production of technical plans, fabrication drawings, and models

Assignments require the preparation of calculations and reports, and excellent technical report writing skills are essential

Strong interest in numerical computations and problem solving

Proficiency with MS Office applications

Excellent written and verbal communication skills

Valued but not required skills and experience:

Successful completion of the Fundamentals of Engineering (FE) exam, and designation as an Engineer in Training

Experience in writing and providing support documentation for Mechanical Engineering calculations

Coursework in the following:

Power engineering

Turbomachinery

Energy conversion

AI & Automation at Sargent & Lundy

In this role, we expect people to be willing or able to solve problems using modern tools:

You are expected to take engineering problems from issue to solution using data and modern tools such as automation and AI to improve workflows, reduce rework, and deliver cost-effective designs.

Many engineers in these roles build or use automation to create calculations, summarize technical documents, or draft design documentation, including appropriate use of agentic AI tools, with strong engineering judgment and verification of results.

Programming or scripting (e.g., Python, MATLAB, advanced Excel) to automate calculations, design checks, reporting, or data transformation is valued but not required.

We also value additional learning, such as a minor, certificate, or other training in Computer Science, Artificial Intelligence, Software Engineering, or related fields that helps you apply automation or agentic AI to real engineering problems.

Award-Winning Benefits

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 & Wellness Financial Benefits Work-Life Balance

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

Compensation Range

$74,353 - $113,595

Transparency Statement

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.

About This Business Unit

Join Sargent & Lundy's Nuclear Power Group and be part of a team driving the future of clean, carbon-free energy. Since 1954, we've been a trusted leader in nuclear engineering, design, and licensing, with expertise spanning small modular reactors (SMRs), advanced reactor technology (ART), and first-of-a-kind commercial reactor restart projects. Our work supports life extensions and digital modernization of existing nuclear plants, coal-to-nuclear conversion initiatives with the Department of State, and international nuclear new-build projects. With a commitment to safety, innovation, and sustainability, we provide cutting-edge solutions that power communities worldwide while reducing emissions. Shape the future of global energy with us!

Awards & Recognition

Equal Opportunity

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.

CityChicago

StateIL

CountryUnited States

Area of InterestMechanical Engineering

TypeFull Time - Regular

Job ID2026-23921

Business GroupNuclear Power Group

DepartmentNuclear Plant Analysis

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