Senior Mechanical Engineer — Onsite Infra Design Lead
Fermi Research Alliance, LLC
Fermilab is seeking a Senior Mechanical Engineer in Batavia, IL to lead and contribute to complex design, procurement, installation, testing, and operations for high-profile projects. You will guide a team, supervise subcontractors as needed, and help develop cost estimates while ensuring safety and compliance with DOE orders and local codes. The role emphasizes leadership, cross-functional collaboration, and delivering innovative mechanical solutions in a regulated lab environment. #J-18808-Ljbffr Fermi Research Alliance, LLC
$111.4k - $146.6k
...Division (ISD) is seeking a Senior Mechanical Engineer . This individual is responsible... ...Senior Mechanical Engineer leads and contributes to projects in areas such as design, design review, procurement,... ...to be final. ~ Onsite : This is an onsite role, and...SeniorTemporary workFor contractorsFor subcontractorWork at officeLocal areaFlexible hours$111.4k - $146.6k
...Division (ISD) is seeking a Senior Mechanical Engineer. This individual is responsible... ...Senior Mechanical Engineer leads and contributes to projects in areas such as design, design review, procurement,... ...applications desired Work Arrangement: Onsite Onsite: This is an onsite...SeniorTemporary workFor contractorsFor subcontractorWork at officeLocal areaFlexible hours$111.4k - $146.6k
...Role: Fermilab is seeking a Senior Process Piping Mechanical Engineer who is a collaborator by... ...latest technology and tools to design, fabricate, test, install... ...). Participate in and lead efforts involving general... ...not guaranteed to be final. Onsite: This is an onsite role,...SeniorTemporary workFor contractorsWork at officeFlexible hoursShift work- Experienced or Senior Mechanical System Design EngineersCompany:The Boeing CompanyBoeing St. Louis is building... ...or SeniorMechanical System Design Engineers to develop, maintain and modify air... ...in the past 24 monthsExperience leading and working with aircraft fluid systems...SeniorFull timeWork experience placementInterim roleImmediate startRelocationVisa sponsorshipWork visaFlexible hoursShift work
- Fermilab is seeking a Senior Process Piping Mechanical Engineer to design, test, install, and operate piping systems for accelerator facilities. You’ll work with... ...to prototype and optimize components. You will lead mechanical design, analyze piping networks, and coordinate...Senior
$130k - $190k
A leading engineering staffing firm is seeking a Project/Mechanical Engineer to work onsite in Batavia, IL. The role involves overseeing project execution, supporting engineering and R&D teams, and managing in-house projects related to pilot operations. Candidates should...- WSP USA is seeking a senior engineer to lead our Systemwide Design Corridor Management (DCM) team in Lisle, Illinois. The role focuses on coordinating systemwide design initiatives, managing scope, budgets, and client meetings to advance Tollway projects. The candidate...Senior
- Ulta Beauty seeks a Concept Design Manager to own design development for net-new Visual Merchandising initiatives across store formats, international markets, and promotional activations. You will intake new projects, develop briefs, and visualize fixtures and environments...Senior
$120k - $150k
Lombard, ILMechanical Engineering - Engineering /Full Time /HybridValdes... ...is seeking an experienced Senior Mechanical Engineer to support projects... ...independently executing and leading mechanical engineering... ...individual leads mechanical design activities, manages assigned...SeniorFull timeFor contractorsLocal area- M&R Printing Equipment, Inc. in Roselle, IL, is seeking a Lead Designer - Print Applications to own art creation, preparation, and technical... ...print and digital campaigns. You will work across marketing, engineering, and sales, delivering production-ready art, color...Senior
$120k - $160k
...: JobMolex is seeking an innovative Senior Mechanical Engineer to join our R&D team. This team is responsible... ...the conceptualization of industry leading fiber optic interconnect solutions... ...Group is at the forefront of designing and delivering cutting-edge optical solutions...SeniorFlexible hours$124.8k - $164.2k
...is seeking a Principal Mechanical Engineer. This individual is... ...Principal Mechanical Engineer leads and contributes to... ...in areas such as design, design review, procurement... ...technicians, or less senior engineers. Coordinate... ...desired. Work Arrangement Onsite: This is an onsite...Temporary workFor subcontractorWork at officeLocal areaFlexible hours- ...Senior Mechanical Engineer to support plant engineering, manufacturing operations, equipment improvements, and capital projects. Ready to apply... ..., process enhancements, and facility upgrades. Design, modify, test, and implement new and existing manufacturing...Senior
- Zachry Group is seeking a Senior Electrical Engineer for its Downers Grove Design Center. You will lead a team of electrical engineers on oil & gas and petrochemical projects, planning, designing and guiding technical work under department management. Key responsibilities...Senior
$90k - $175k
...Overview ENERCON's Chief Engineering Group is seeking a Senior Mechanical Analysis Engineer to join the team in the... ...locations. This role offers the chance to lead innovative mechanical engineering... ...practical, cost-effective design solutions Cross-Disciplinary Innovation...SeniorWork at officeRemote work$110k - $120k
...Senior Mechanical Engineer Naperville, Illinois - Posted on October 16, 2026 Published By Christina Pandiarajan Tremendous direct hire... ...manufacturer in Naperville! The Sr. Mechanical Engineer will lead design, development and implementation by managing projects,...Senior- ...Status: Exempt Reports To: Director of Sales Location: North Aurora, IL Job Summary: The Senior Mechanical Engineer is responsible for leading the design, development, and implementation of mechanical systems and components. This role involves providing technical...Senior
- Enercon Services, Inc. is seeking a Mechanical Design Engineer to join the Nuclear Design Group. The role offers a path from senior engineer to principal engineer, mentoring others and leading projects across multiple locations, including Naperville, IL. You will contribute...Senior
- Valdes Architecture & Engineering Company is seeking a senior Civil/Structural Engineer with extensive experience in the Process Industry or Power sectors. You will lead design efforts, oversee projects, and coordinate with clients and multidisciplinary teams to develop...Senior
- WSP is seeking a Design Manager in Illinois to lead design excellence for the Illinois Tollway program. You will guide technical standards, ensure quality, and drive practical innovations across roadway and structural designs while remaining technically engaged at the...Senior
- ...Our client is a multidisciplinary engineering firm focusing on the design, integration, and construction management... ...vendors. Our client is seeking a Mechanical Project Engineer. While this... ...responsible for supporting and/or leading projects by delivering efficient engineering...SeniorContract workWork at office
$107.2k - $204k
Mechanical Design Engineer - Senior & Principal Become a part of ENERCON as a Mechanical Design Engineer. We are seeking talented Mechanical Engineers... ...senior roles or principal engineer position where you'll lead and mentor others. We continually invest in our employees...SeniorFull timeContract workCurrently hiringRemote work$115k - $167.5k
...Downers Grove, IllinoisFacilities Engineering – Mechanical /Full Time (40) /HybridTKDA is a 10... ...owned engineering, architecture, and design firm seeking a Senior Professional Mechanical Engineer to... ....In this senior role, you will lead the mechanical design of complex HVAC...SeniorFull timeH1bVisa sponsorshipWork visaMonday to FridayNight shift- Zachry Group is seeking a Principal Engineer Mechanical - HVAC in Downers Grove, IL. The role involves leading industrial HVAC and plumbing projects, estimating scopes,... ...coordinating across disciplines to ensure code-compliant design solutions. Responsibilities include design...Senior
$102.5k - $138.5k
...Senior Mechanical Engineer As Chemring Energetic Devices (CED) celebrates 50 years of building products... ..., test, and evaluate prototypes Lead internal and customer driven technical... ...Requirements Reviews (SRR), Preliminary Design Reviews (PDR), Critical Design Reviews...SeniorFor contractorsWork at officeShift work- Fermilab is seeking a senior Cryogenic Engineer in Batavia, IL to lead planning, research, and development of major engineering projects. You will supervise... ...standards. The role emphasizes technical leadership, design reviews, procurement, installation, and operation,...Senior
- ENERCON Services, Inc. in the United States is seeking a Mechanical Design Engineer (Senior/Principal) to join our Nuclear Design Group in Naperville, IL and other U.S. locations. Lead and mentor engineering teams, deliver design solutions, and work on power generation...Senior
- Molex is seeking an innovative Senior Mechanical Engineer to join our R&D team focused on fiber optic interconnect... ...cloud, AI, and hyperscale markets. Lead product development from concept to... ...and testing, and ensure DFMA-friendly designs in coordination with manufacturing and...Senior
- ...consultant to leaders, guiding workforce planning, organizational design, and employee development across HR specialties. You will coach... ..., and champion a positive, compliant workplace culture. This onsite role at Union City, CA may involve travel and regional HR leadership...Senior
- ...blueprints, and operate CNC mills, EDMs, and surface grinders to tight tolerances. You’ll read drawings, write Mastercam programs, and collaborate with engineering and production to troubleshoot tooling and improve processes. #J-18808-Ljbffr Moldtronics Mold & MachiningSenior
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