Sr Mechanical Design Engineer (MEP) ESPO CorporationSr Mechanical Design Engineer (MEP)Chicago, IL$122,712–$150,404 / yearPay range: $123,000 - $150,000 Our client, a growing and highly respected engineering consulting firm, is seeking an experienced Senior Mechanical Design Engineer (MEP) to join their Chicago team. This position goes beyond traditional engineering design—you will play a key role in building teams, strengthening client relationships, and driving project success across multiple engagements.
Mechanical Engineer PE I ENFRA LLCMechanical Engineer PE IWestmont, Illinois$103,175–$132,765 / yearFull timeWith over 100 years of experience, we are a pillar of stability in the energy infrastructure industry and a leader in innovative energy solutions. We strive to create a workplace where every voice is heard and valued, fostering a collaborative environment where diverse perspectives drive our success.
Senior Opto-Mechanical Engineer Photon Queue Inc.Senior Opto-Mechanical EngineerLemont, IL$130,000–$170,000 / yearDesign, specify and integrate custom + off-the-shelf components – optical mounts (static, kinematic – manual & actuated), linear stages, Pockels cell assemblies, active alignment systems, motion controllers, PCBs, wiring, cooling systems and sealed/unsealed enclosures. You will work at the intersection of optics, mechanics, test and manufacturing, serving as the central integrating force that pulls domain-specific work from across the engineering team into a coherent, buildable product that ships to the world's leading quantum research institutions.
Mechanical Engineer Project Consultant Sargent & LundyMechanical Engineer Project ConsultantChicago, Illinois$134,546–$205,557 / yearFull timeFifteen or more years experience in the design of mechanical engineering systems for non-commercial, heavy industrial plants (power, oil & gas, or chemical), with a focus on integrated, detailed system design for new plants, modifications, or replacements; Experience must include the selection of equipment, piping materials, control philosophy, and the preparation of performance sizing calculations and specifications. About This Business Unit: 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.
NewMechanical Engineer 2 - Nuclear (Summer 2027) Sargent & LundyMechanical Engineer 2 - Nuclear (Summer 2027)Chicago, Illinois$69,298–$99,644 / yearFull timeAI & 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. 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.
Mechanical Engineer - Senior-Level Sargent & LundyMechanical Engineer - Senior-LevelChicago, Illinois$84,762–$129,498 / yearFull timeFive or more years of experience in the design of mechanical engineering systems for non-commercial, heavy industrial plants (power plant - essential, oil & gas, or chemical - valued), with a focus on integrated, detailed system design for new plants, modifications, or replacements; Experience must include the selection of equipment, piping materials, control philosophy, and the preparation of supporting calculations and specifications. AI & Automation at Sargent & Lundy: 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.
Mechanical Engineer - Project Lead Sargent & LundyMechanical Engineer - Project LeadChicago, Illinois$118,023–$180,313 / yearFull timeTen or more years experience in the design of mechanical engineering systems for non-commercial, heavy industrial plants (power, oil & gas, or chemical), with a focus on integrated, detailed system design for new plants, modifications, or replacements; Experience must include the selection of equipment, piping materials, control philosophy, and the preparation of performance sizing calculations and specifications. AI & Automation at Sargent & Lundy: 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.
Mechanical Project Engineer PEAK Technical StaffingMechanical Project EngineerDowners Grove, ILThis role is responsible for supporting and/or leading projects by delivering efficient engineering design and execution that maintains or improves contract profitability while ensuring high levels of customer satisfaction. Design customized solutions including pump and motor sizing, pneumatic, electro-pneumatic, and electrical routing (experience with food, beverage, dairy or consumer products industries is a plus).
NewMechanical Principal Engineer - High-Power Koch IncMechanical Principal Engineer - High-PowerLisle, IL$110,000–$175,000 / yearMechanical Principal Engineer - High-Power - Lisle, Illinois, United States - 187879 - Koch. Join our Talent Community.
Mechanical Engineer Primera EngineersMechanical EngineerChicago, IllinoisEver focused on providing a first-class client experience, our 30-plus-year history includes projects for school, university, healthcare, government, aviation, laboratory, campus, and municipal facilities. You’ll design mechanical HVAC systems for new and existing buildings, including renewable and sustainable technologies that provide the best value to building owners.
Senior Mechanical Engineer 1 - Nuclear Plant Analysis Sargent & LundySenior Mechanical Engineer 1 - Nuclear Plant AnalysisChicago, Illinois$84,762–$129,498 / yearFull timeAI & Automation at Sargent & Lundy: 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.
Buildings Sr. Mechanical Engineer (PE) Primera EngineersBuildings Sr. Mechanical Engineer (PE)Chicago, IllinoisEver focused on providing a first-class client experience, our 30-plus-year history includes projects for school, university, healthcare, government, aviation, laboratory, campus, and municipal facilities. Primera’s practices and employment decisions, including those regarding recruitment, hiring, assignment, promotion and compensation, shall not be based on any person’s race, color, creed, religion, national origin, sex, age, ancestry, disability, physical handicap, marital status, sexual orientation, veteran status, citizenship status or other protected group as defined by law.
Senior Mechanical Engineer 2 (Power Uprates) - Nuclear Sargent & LundySenior Mechanical Engineer 2 (Power Uprates) - NuclearChicago, Illinois$100,019–$152,807 / yearFull timeAI & Automation at Sargent & Lundy: 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.
Lead Mechanical Engineer 1 (Power Uprates) - Nuclear Sargent & LundyLead Mechanical Engineer 1 (Power Uprates) - NuclearChicago, Illinois$118,023–$180,313 / yearFull timeAI & Automation at Sargent & Lundy: 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.
Senior Mechanical Engineer MolexSenior Mechanical EngineerLisle, ILFull timeMolex's Optical Connectivity Group is at the forefront of designing and delivering cutting-edge optical solutions that power data centers, telecom infrastructure, and next-gen computing. Interface with cross-functional team members in product and project management, manufacturing, procurement, and quality, during all phases of new product development and in support of existing products.
Mid-Level Automation Mechanical Design Engineer NeyretMid-Level Automation Mechanical Design EngineerSugar Grove, IllinoisSkills: · Strong verbal and written communication skills · Excellent problem solving and time management skills · Good mechanical aptitude and knowledge · Knowledge of electronic equipment and computer hardware and software · Background in automation engineering Minimum Requirements: · A Bachelor’s Degree in Mechanical Engineering or Engineering Technology (or similar related degree) · 3 - 5 years related job experience · Valid Driver’s License · Proficient with MS Office, SolidWorks (2025) · Must have the ability to measure and model new and existing mechanical components · Be U.S. work authorized. Neyret, Inc, part of Neyret Group, is a world class machine builder/integrator specialized in the design and manufacture of custom assembly machines for various industries including medical, dental, automotive, cosmetic and more.
Assistant Mechanical Engineer CRRC Sifang AmericaAssistant Mechanical EngineerChicago, IL$60,000–$75,000 / yearFull timeThe day-to-day activities involve working with Technical Engineering groups, Design groups, Production teams, Quality Assurance teams, Procurement and Aftersales department to improve existing product designs and processes to increase throughput, decrease operational costs, and improve quality. The Assistant Manufacturing Mechanical Engineer is expected to be comfortable working in the manufacturing environment; capable to work under pressure and with limited supervision, and respond to the production/quality related issues in a timely manner to avoid production delays.
Mechanical Project Engineer EpsteinMechanical Project EngineerChicago, IL$110,000–$130,000 / yearThis is an excellent opportunity for an experienced mechanical engineering professional with 6-10 years of experience and strong project leadership skills who enjoys managing complex projects, mentoring design teams, and delivering high-quality engineering solutions across a diverse portfolio of projects and wants to contribute to impactful, high-quality work. This individual will design HVAC systems for commercial, institutional, education, hospitality, government, residential, retail, and industrial facilities while coordinating closely with other engineering disciplines to deliver integrated design solutions.
Lead Mechanical Engineer 1 - Nuclear Sargent & LundyLead Mechanical Engineer 1 - NuclearWarrenville, Illinois$118,023–$180,313 / yearFull timeAI & Automation at Sargent & Lundy: 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.
Senior Mechanical Engineer / Designer Allen + Shariff CorporationSenior Mechanical Engineer / DesignerChicago, ILProvide bid and construction phase services including reviewing bids, answering RFIs, reviewing shop drawings, participating in project walk-throughs, and providing field observation reports. Allen & Shariff is an international MEP engineering firm providing consulting and design services in the United States and Mexico, and project management services in the Middle East.