Senior Mechanical Engineer Jobs in Chicago, IL

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Senior Mechanical Engineer (Power Focus)

Sargent & Lundy LLC.

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Chicago, Illinois, USA

Full-time

Description This role offers a hybrid work arrangement. You'll spend three days a week in the office, giving you the flexibility to work remotely for two days Overview: Sargent & Lundy Consulting (SLC) works on behalf of clients to support electric power projects. We evaluate and optimize technical, commercial, environmental, and financial aspects of the projects for a variety of clients.. Responsibilities: In this role, you will provide development support, conceptual design and owner's engi
Posted 24 days ago | Updated 9 hours ago

Senior Mechanical Engineer 2 (Power Uprates) - Nuclear

Sargent & Lundy LLC.

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Chicago, Illinois, USA

Full-time

Description Our electric power generation clients are seeking to increase the power output of their existing power plants to meet the electric demands. This is expanding work in the Mechanical Analysis Engineering group. You will work on major systems, equipment, and plant process in the following areas: Develop and lead licensing basis system and component evaluations for nuclear power uprate projects.This position will offer you the ability to directly apply your knowledge of thermodynamics,
Posted 9 days ago | Updated 9 hours ago

Senior Mechanical Engineer-Hydro Turbines

Stantec

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Chicago, Illinois, USA

Full-time

At Stantec, we know the work we do matters. From decarbonizing mines to modernizing electric grids and building the infrastructure that fuels communities, we're powering the world. Our clients come to us with their biggest, most complex challenges because that's where we thrive. And we're looking for problem solvers, high achievers, and visionaries to help us. Join us for a chance to grow professionally at one of the world's top design firms while building our clean energy future. Your Opportuni
Posted 32 days ago | Updated 9 hours ago

Senior Mechanical Engineer

HDR, Inc.

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Chicago, Illinois, USA

Full-time

At HDR, our employee-owners are fully engaged in creating a welcoming environment where each of us is valued and respected, a place where everyone is empowered to bring their authentic selves and novel ideas to work every day. As we foster a culture of inclusion throughout our company and within our communities, we constantly ask ourselves: What is our impact on the world? Watch Our Story:' ' Each and every role throughout our organization makes a difference in our ability to change the world f
Posted 60+ days ago | Updated 9 hours ago

Senior Mechanical Engineer-Hydro Turbines

Stantec

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Chicago, Illinois, USA

Full-time

Job Description At Stantec, we know the work we do matters. From decarbonizing mines to modernizing electric grids and building the infrastructure that fuels communities, we're powering the world. Our clients come to us with their biggest, most complex challenges because that's where we thrive. And we're looking for problem solvers, high achievers, and visionaries to help us. Join us for a chance to grow professionally at one of the world's top design firms while building our clean energy futur
Posted 36 days ago | Updated 9 hours ago

Senior Mechanical Engineer (Construction/HVAC)

Jobot

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Downers Grove, Illinois, USA

Full-time

Top Tier Fully Integrated AEC Firm, Fantastic Growth Opportunities, Great Company Culture, Hybrid Work This Jobot Job is hosted by: Ross Theel Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $95,000 - $145,000 per year A bit about us: Based in the Chicagoland area, we are a $200M+ Fully Integrated AEC Firm! Our core values are centered around our people and our clients. Our continuous growth is fostered through prestigious team members and
Posted 1 day ago | Updated 2 hours ago

Senior Mechanical Engineer 1 - Nuclear

Sargent & Lundy LLC.

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Chicago, Illinois, USA

Full-time

Description This role offers a hybrid work arrangement. You'll spend three days a week in the office, giving you the flexibility to work remotely for two days. You will be involved in nuclear power plant systems design, including preparation or review of: Modification packages for operating nuclear power plantsFunctional mechanical drawings and/or drawings for nuclear power plant systemsEngineering analyses and evaluations to support modifications and operation of plant systemsTechnical specifi
Posted 50 days ago | Updated 9 hours ago

Senior Mechanical Engineer - Mission Critical

Burns & McDonnell

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Chicago, Illinois, USA

Full-time

Description Burns & McDonnell is a company made up of more than 10,000 engineers, architects, construction professionals, scientists, consultants, and entrepreneurs with offices across the country and throughout the world. Burns & McDonnell is 100 percent employee-owned and is proud to be on Fortune's 2020 list of 100 Best Companies to Work For. Burns & McDonnell has exciting opportunities for those interested in growing their careers in one of the most fast paced, innovative sectors of high tec
Posted 60+ days ago | Updated 9 hours ago

Senior Mechanical Engineer 1 - Nuclear Plant Analysis

Sargent & Lundy LLC.

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Chicago, Illinois, USA

Full-time

Description This position will offer you the ability to directly apply your knowledge of thermodynamics, heat transfer, fluid mechanics, and experience in power plant engineeringYou will be preparing or reviewing calculations, evaluations, and technical reports to support client recommendations and reviews, and will additionally conduct equipment sizing, optimization evaluation, and selection in response to client needsWhile supporting clients and project teams with other Mechanical Engineers,
Posted 49 days ago | Updated 9 hours ago

Senior Mechanical Engineer 2 - Nuclear

Sargent & Lundy LLC.

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Chicago, Illinois, USA

Full-time

Description This role offers a hybrid work arrangement. You'll spend three days a week in the office, giving you the flexibility to work remotely for two days. You will be involved in nuclear power plant systems design, including preparation or review of: Modification packages for operating nuclear power plantsFunctional mechanical drawings and/or drawings for nuclear power plant systemsEngineering analyses and evaluations to support modifications and operation of plant systemsTechnical specifi
Posted 60+ days ago | Updated 9 hours ago

Sr. Mechanical Engineer

Salas O'Brien Engineers Incorporated

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Hammond, Indiana, USA

Full-time

Independently, the Senior Engineer performs discipline responsibilities within Project and Departmental Budgets. Engineer is accountable technically and administratively to the Department Manager as well as Project Managers for successfully executing the Mechanical group's work. Engineer is expected to serve in the roles of Project Discipline Lead and Engineer of Record. Engineer is expected to execute multiple projects of different sizes simultaneously. ESSENTIAL JOB FUNCTIONS: The responsibi
Posted 50 days ago | Updated 9 hours ago

Sr. Mechanical Engineer - HVAC/Building Systems

Farnsworth Group, Inc.

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Tinley Park, Illinois, USA

Full-time

Join us and grow your career with a certified Great Place to Work for the last nine years running. We are a team of Engineers, Architects, Surveyors and Scientists committed to making meaningful contributions to the world around us. Our quest for excellence goes beyond the ordinary; we seek extraordinary people who want to showcase their talents and join us in making a difference for our clients and communities. You will be part of a collaborative group that champions your career and passions, e
Posted 33 days ago | Updated 9 hours ago

Sr. Mechanical Engineer - HVAC/Building Systems

Farnsworth Group, Inc.

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Lisle, Illinois, USA

Full-time

Join us and grow your career with a certified Great Place to Work for the last nine years running. We are a team of Engineers, Architects, Surveyors and Scientists committed to making meaningful contributions to the world around us. Our quest for excellence goes beyond the ordinary; we seek extraordinary people who want to showcase their talents and join us in making a difference for our clients and communities. You will be part of a collaborative group that champions your career and passions, e
Posted 33 days ago | Updated 9 hours ago

Senior Mechanical Engineer - Nuclear (Chicago)

Burns & McDonnell

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Chicago, Illinois, USA

Full-time

Description The Senior Mechanical Engineer will lead mechanical design project teams to create world class designs for new projects, alterations and redevelopments on a variety of projects including power, process, corporate, healthcare, pipeline, airports, institutional, industrial, manufacturing, government and military facilities. The Senior Mechanical Engineer will lead the project team throughout the design and construction process, adapting mechanical plans according to budget constraints,
Posted 60+ days ago | Updated 9 hours ago

Senior Mechanical Engineer 1 - Nuclear

Sargent & Lundy LLC.

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Warrenville, Illinois, USA

Full-time

Description This role offers a hybrid work arrangement. You'll spend three days a week in the office, giving you the flexibility to work remotely for two days. You will be involved in nuclear power plant systems design, including preparation or review of: Modification packages for operating nuclear power plantsFunctional mechanical drawings and/or drawings for nuclear power plant systemsEngineering analyses and evaluations to support modifications and operation of plant systemsTechnical specifi
Posted 50 days ago | Updated 9 hours ago

Sr. Mechanical Engineer - Healthcare

Farnsworth Group, Inc.

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Remote

Full-time

Join us and grow your career with a certified Great Place to Work for the last nine years running. We are a team of Engineers, Architects, Surveyors and Scientists committed to making meaningful contributions to the world around us. Our quest for excellence goes beyond the ordinary; we seek extraordinary people who want to showcase their talents and join us in making a difference for our clients and communities. You will be part of a collaborative group that champions your career and passions, e
Posted 27 days ago | Updated 9 hours ago

Sr. Mechanical Engineer, Hardware Simulation

Johnson & Johnson

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Remote or Santa Clara, California, USA

Full-time

At Johnson & Johnson, we believe health is everything. Our strength in healthcare innovation empowers us to build a world where complex diseases are prevented, treated, and cured, where treatments are smarter and less invasive, and solutions are personal. Through our expertise in Innovative Medicine and MedTech, we are uniquely positioned to innovate across the full spectrum of healthcare solutions today to deliver the breakthroughs of tomorrow, and profoundly impact health for humanity. Learn m
Posted 19 days ago | Updated 9 hours ago

Senior Mechanical Engineer 1 - Nuclear

Sargent & Lundy LLC.

•

Remote

Full-time

Description You will be involved in nuclear power plant systems design, including preparation or review of: Modification packages for operating nuclear power plantsFunctional mechanical drawings and/or drawings for nuclear power plant systemsEngineering analyses and evaluations to support modifications and operation of plant systemsTechnical specifications and procurement documents for plant equipmentVendor bid evaluations for plant equipmentStudies and options evaluations for modifications to
Posted 15 days ago | Updated 9 hours ago

Senior Mechanical Engineer 1 - Government Services

Sargent & Lundy LLC.

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Remote

Full-time

Description Sargent & Lundy's Government Services Division provides cutting-edge engineering and consulting to the management and operating contractors for the US Department of Energy (DOE) and the National Nuclear Security Administration (NNSA). What does this mean? You can be a part of multi-discipline teams developing and designing facilities, systems, and equipment for the nation's major research laboratories and the legacy nuclear weapons production complex. This critical engineering work
Posted 22 days ago | Updated 9 hours ago

Senior Mechanical Engineer (Hybrid-Puerto Rico)

RTX Corporation

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Remote or Aguadilla, Aguadilla, Puerto Rico

Full-time

Date Posted: 2025-06-05 Country: United States of America Location: HPR01: Collins Puerto Rico- Aguadilla Road 110 North Km 28.8 San Antonio Industrial Park, Aguadilla, PR, 00603 USA Position Role Type: Hybrid U.S. Citizen, U.S. Person, or Immigration Status Requirements: Security Clearance: None/Not Required Collins Aerospace is looking to hire a Senior Mechanical Engineer to perform design cost management. The primary focus of this position will be to provide Design to Cost (DTC) support for
Posted 37 days ago | Updated 9 hours ago