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8 senior principal mechanical engineer jobs found

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senior principal mechanical engineer Illinois
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Full time  (8)
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SG
Aug 05, 2026
Full time
Sr. Ball Screw Mechanical Engineer - Aerospace
$150,000 - $210,000 yearly
SkillsetGroup Rockford, IL
Skillset Group is seeking a Senior Ball Screw Mechanical Engineer to work in either Rockford, IL or Freeland, MI. The Senior Ball Screw Design Engineer will lead the design, development, and continuous improvement of high-precision ball screw assemblies used in aerospace, defense, medical, and industrial applications. This role serves as the primary technical expert, partnering with customers, vendors, and manufacturing teams to develop innovative designs, optimize manufacturing processes, and ensure product performance and reliability. The ideal candidate has extensive ball screw design experience, a strong mechanical engineering background, and thrives in a hands-on environment with the opportunity to build and lead a growing engineering team. This is a DIRECT HIRE OPPORTUNITY on 1st shift. Please send your resume to rmills@skillsetgroup.com. Principal Mechanical Engineer DIRECT HIRE OPPORTUNITY!!! Pay: $150-210K/yr. Location: Rockford, IL or...
Fe
Mar 02, 2026
Full time
Principal Mechanical Engineer
Fermilab Batavia, IL
The expected hiring range for this position is: $124,800.00-$164,200.00. Please note that the pay range information is a general guideline only. The pay offered to a selected candidate will be determined based on factors such the scope and responsibilities of the position, qualifications of the selected candidate, business considerations, internal equity, and external market pay for comparable jobs. About the Role: The Fermilab Infrastructure Services Division (ISD) is seeking a Principal Mechanical Engineer . This individual is responsible for major, complex, high-level engineering projects requiring engineering creativity in developing innovative concepts and techniques. The (ISD) Principal Mechanical Engineer leads and contributes to projects in areas such as design, design review, procurement, manufacture, installation, test, and initial operations of a project with extensive & diversified engineering requirements in compliance with all applicable local, state, and...
CM
Aug 05, 2026
Full time
Controls Engineer
$70,000 - $100,000 yearly
CivicMinds, Inc. Sterling, IL
Position: Controls Engineer Location: Sterling, IL Type: Full-time | On-site Position Summary: Work under the direction of the project managers to create PLC & HMI applications for weighing and batching or material handling applications as well as assist with electrical design and project approval tasks as needed. In house and field checkout of industrial control panels and other equipment. Provide customer support during start up as well as troubleshooting . . Principal Responsibilities: Create well documented approval packages that include Sequence of Operations Front panel layouts Equipment and I/O lists PLC and HMI programming Conduct in-house checkout of completed systems Assist Production Technicians as needed with installation of components Write detailed instruction manual for completed project Communicate and request technical information with vendors and customers Research new technology available in market Assist...
RW
Aug 05, 2026
Full time
Principal Engineer, Solar PV Tech Assessment
$194,000 - $206,000 yearly
RWE Chicago, IL
RWE Americas, LLC To start as soon as possible, full time, permanent Functional area: Engineering Remuneration: Exempt The Principal Engineer, Solar PV Energy Production, is a senior individual-contributor role responsible for elevating the technical quality and long-term defensibility of energy production work across the project lifecycle. Reporting to the VP of Solar PV Systems, this role owns the methodological backbone of solar modeling practices such as early-stage production modeling best-practices, post-COD reconciliation with FID assumptions, production uncertainty modeling, proactive coordination for execution phase and the integration of emerging analytical capabilities into engineering workflows. This person sets the standard for how the company models, validates, and continuously improves energy yield estimates across utility-scale solar assets, and is expected to work with meaningful autonomy on problems that span development, construction, and operations....
MJ
Aug 05, 2026
Full time
Principal Mechanical Design Engineer
$125,000 - $155,000 yearly
Mi-Jack Products Hazel Crest, IL
Summary of Position: Serves as a principal-level technical leader within the Structural & Cab Engineering Team. This role operates with a high degree of autonomy, provides subject matter expertise on complex mechanical and structural design assignments, and leads the translation of engineering direction into executable plans. The position is intended to provide senior technical leadership and succession capability for future engineering leadership needs. Responsibilities : Plan, conceptualize, and create mechanical designs for new and existing products while ensuring alignment with broader product, quality, manufacturability, and business objectives. Serve as a subject matter expert for complex mechanical and structural systems, including machine structures, winches/gearboxes, motors, sheaves, drums, enclosures, operator cabs, and related equipment systems. Develop mechanical and structural connection designs, including bolted, pinned, and welded connections, and guide...
Ka
Aug 05, 2026
Full time
Mechanical Engineer
$85,000 - $125,000 yearly
Kaney Rockford, IL
Job Summary: Kaney is seeking a Senior Mechanical Engineer focused on design and analysis of electromechanical actuation systems and components. You will drive the mechanical design, analysis, and testing of products to ensure they meet performance, safety, manufacturability, reliability, and certification requirements. Major Responsibilities: Perform trade studies between alternative actuator design concepts to determine optimal approach Ensure designs meet weight, envelope, performance, manufacturability, and cost targets Perform stress, fatigue, and modal analyses with hand calculations and FEA tools to verify designs under various loading conditions Determine appropriate bearing arrangements and sizes for new product designs Develop detailed 3D CAD models and engineering drawings for rotary and linear actuators Conduct tolerance stack-up analyses on new and existing products Collaborate with systems and electrical engineering to integrate motors, sensors, drives,...
Ne
Aug 05, 2026
Full time
Technical Leader - Principal Mechanical Design Engineer
Nemera Chicago, IL
Company Description With sales of €700m and 3,300 employees worldwide, Nemera is one of the leading global manufacturers of complex drug delivery systems for the pharmaceutical industry, offering to patients a broad product portfolio which includes inhalation devices, injection devices, nasal and dermal pumps and ophthalmic delivery devices. Nemera has built very long lasting, strong relationships with the leading global pharmaceutical companies globally by providing high quality development, industrialization and manufacturing services. Nemera develops and manufactures its own IP product platforms but also offers also fully custom developments and contract manufacturing. Nemera's manufacturing sites are located in the US, France, Germany, Brazil and Poland. The headquarters and Innovation Center for early device design and development are located in France (Lyon). We have big ambitions at Nemera! We are growing our franchises and strengthening our capabilities. Job...
Ka
Apr 26, 2026
Full time
Principal Mechanical Engineer, Ball Screws
Kaney Rockford, IL
The Principal Engineer for Ball Screw Design & Development serves as the technical authority for precision ball screw mechanisms used in aerospace, defense, medical, and industrial applications. This role owns the design architecture, analytical approach, materials selection, manufacturing methods, and validation strategy of new ball screw products. The Principal Engineer provides deep subject-matter expertise, leads complex development efforts, and mentors engineering teams to ensure product performance, reliability, and manufacturability. Major Responsibilities: Lead the design, development, and analysis of ball screw assemblies, including screw shafts, nuts, return systems, recirculation mechanisms, and drive interfaces. Define ball screw geometry, preload strategy, lead accuracy, life requirements, and lubrication approaches based on system needs and environmental constraints. Perform detailed analytical modeling: load distribution, Hertzian contact stress, fatigue...
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