Mechanical Engineer Jobs in Illinois
Mechanical engineer jobs in Illinois draw steady demand across manufacturing, infrastructure, defense, and energy sectors, with openings at every level from entry-level design roles through senior systems engineering positions. Chicago, Rockford, and Peoria are the state's primary hiring hubs, anchored by established employers such as Caterpillar, Abbott, and Boeing, all of which maintain major engineering operations in Illinois. The most consistently sought specialties include thermal systems, product development, and manufacturing process engineering. Find a role that fits below and apply directly.
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We are seeking a motivated, hands-on Mechanical Engineer to join our engineering team. In this role, you will play a critical part in the design, development, testing, and continuous improvement of our products. You will own assigned engineering projects from concept through production, working across the entire development cycle to solve complex problems and support reliable products in demanding applications.
Responsibilities:
- Design & Development: Create detailed 3D models, assemblies, and manufacturing drawings using Creo Parametric. Apply sound engineering principles to rotating equipment, bearings, shafts, castings, sheet metal, and machined components.
- Standards & Analysis: Apply GD&T (per ASME Y14.5) to communicate functional drawing requirements. Perform engineering calculations, tolerance analyses, and participate actively in design reviews.
- Project Coordination: Manage engineering activities across prototyping, testing, and manufacturing. Develop project plans, identify technical risks, and communicate project status to Engineering and Sales teams.
- Testing & Troubleshooting: Develop and execute environmental, vibration, thermal, and durability tests. Investigate failures, troubleshoot prototype/production hardware, and analyze data to drive design changes.
- Production & QA Support: Support the Engineering Change Order (ECO) process, material dispositions, and deviations. Collaborate with QA to investigate non-conforming products and determine technical solutions.
- Cross-Functional Collaboration: Work both internally and with suppliers to resolve component and assembly sourcing or fabrication/assembly issues. Translate customer requirements into practical engineering specifications and support occasional travel for customer visits or trade shows.
Required Qualifications:
- Education: Bachelor’s degree in Mechanical Engineering from an ABET-accredited institution.
- Core Experience: Proven experience designing mechanical components, creating detailed drawings, and building 3D CAD models.
- Problem Solving: Strong understanding of fundamental engineering principles with the ability to solve mechanical problems independently.
- Communication: Excellent documentation and communication skills, with a strong desire to work in a hands-on manufacturing environment.
Preferred Qualifications:
- Experience Level: 3 to 5 years of professional experience.
- Software & Standards: Proficiency with Creo Parametric (or similar 3D CAD) and working knowledge of GD&T / ASME Y14.5.
- Testing & Tools: Experience with physical hardware testing and data acquisition (DAQ) instrumentation.
- Manufacturing Knowledge: Background working with castings, machining, stamping, fabrication, and root-cause failure analysis.
- Industry Match: Experience with high-speed rotating machinery or working in demanding industries such as automotive, commercial vehicle, industrial, or defense.
Benefits
- Traditional 401K & Roth IRA with a Company Match, Medical, Dental, Vision, Employee Stock Ownership Plan (ESOP), Paid Life, STD & LTD, Paid Vacation and 11 Paid Holidays per year
Salary Range
- $80,000 - $115,000
“Must meet the definition of a U.S. Person in accordance with 22 CFR 120.62 (U.S. Citizen, Lawful Permanent Resident, Asylee, or Refugee).”
C.E. Niehoff & Co. is an Equal Employment Opportunity Employer. We consider applicants for all positions without regard to race, color, religion, sex, sexual orientation, gender identity or expression, national origin, age, genetic information, disability or veteran status.
Job Type: Full-time
Pay: $80,000.00 - $115,000.00 per year
Benefits:
- 401(k)
- 401(k) matching
- Dental insurance
- Flexible spending account
- Health insurance
- Life insurance
- Paid time off
- Vision insurance
Application Question(s):
- Yes or No Response Required: Are You a US Citizen, Legal Permanent Resident, Refugee or Asylee?
Work Location: In person
See All 128+ Mechanical Engineer Jobs in Illinois
Find roles in Illinois that match your experience and apply in just a few clicks.
Find Mechanical Engineer JobsMechanical Engineer Jobs by City in Illinois
Where Illinois roles are concentrated, by current openings.
Mechanical Engineer Job Market in Illinois
A snapshot from current Illinois openings, updated as new roles post.
Who's Hiring
- Sargent & Lundy13

- RFA Engineering4
- Formic3

- Legrand3

- Fermilab3

Top Industries Hiring
- Consulting & Professional Services
- Manufacturing
- Energy
- Chemicals & Materials
- Technology & Software
What Illinois Employers Look For
The qualifications that appear most often in mechanical engineer jobs across Illinois.
- Bachelor's degree in mechanical engineering or a closely related engineering discipline required
- Professional Engineer license issued or recognized in Illinois preferred for senior or supervisory roles
- Proficiency in CAD software such as SolidWorks, AutoCAD, or CATIA for design and modeling tasks
- Experience with GD&T, engineering drawings, and tolerance analysis in a manufacturing environment
- Familiarity with Lean, Six Sigma, or continuous improvement methodologies used in Illinois production facilities
- Strong written and verbal communication skills for cross-functional collaboration with operations and quality teams
Mechanical Engineer Jobs in Illinois: Frequently Asked Questions
How do you become a mechanical engineer in Illinois?
Becoming a mechanical engineer in Illinois starts with earning a bachelor's degree in mechanical engineering from an ABET-accredited program. For roles requiring a Professional Engineer license, candidates must pass the Fundamentals of Engineering exam, gain qualifying experience, and then pass the Principles and Practice of Engineering exam through the Illinois Department of Financial and Professional Regulation. Many Illinois employers hire engineers without a PE license for design and development roles, where a strong degree and relevant internship experience are the primary requirements.
How much do mechanical engineers make in Illinois?
Mechanical engineers in Illinois earn a median of about $102,680 a year, based on May 2025 Bureau of Labor Statistics wage data, ranging from around $72,150 for the lowest 10% to over $160,160 for the top 10%. Pay rises with experience, specialty, and employer.
Which companies hire mechanical engineers in Illinois?
Employers hiring mechanical engineers in Illinois right now include Sargent & Lundy, RFA Engineering, and Formic, based on current listings on Migrate Mate as of September 2026. Illinois's deep manufacturing base and presence of global headquarters in the Chicago area mean openings appear across industries from heavy equipment and medical devices to aerospace and consumer products.
Which Illinois cities have the most mechanical engineer jobs?
Chicago, Warrenville, and Lisle account for the largest share of mechanical engineer openings in Illinois. Chicago's concentration of corporate headquarters, research facilities, and advanced manufacturing drives the bulk of demand, while Rockford's long-standing precision machining and aerospace supply chain and Peoria's heavy equipment manufacturing, centered on Caterpillar's global operations, sustain consistent hiring in those metros.
Are there remote mechanical engineer jobs in Illinois?
Yes, but they're relatively limited. About 59% of mechanical engineer openings tied to Illinois are remote or hybrid as of September 2026, reflecting the hands-on, lab, and production-floor demands that define much of the role. The parts of the work most suited to remote arrangements are simulation, analysis, and documentation tasks, which some Illinois employers accommodate on a hybrid schedule rather than fully remote.
How can I get hired as a mechanical engineer in Illinois with little or no experience?
The most realistic entry path is applying to new-graduate or associate engineer programs at large Illinois manufacturers such as Caterpillar in Peoria or Abbott in the northern suburbs, both of which run structured rotational programs for candidates without professional experience. Co-op completions, strong SolidWorks or simulation portfolio projects, and an Engineer in Training designation through the Illinois Department of Financial and Professional Regulation all strengthen an application. Adjacent roles such as manufacturing technician or quality engineer are also common stepping stones into full mechanical engineering positions at Illinois facilities.
Where can I find and apply to mechanical engineer jobs in Illinois?
You can find and apply to mechanical engineer jobs in Illinois on Migrate Mate, which lists current Illinois openings updated in real time. Search the available roles, find the ones that fit your background and location, and apply directly to the employer through the listing.
See All 128+ Mechanical Engineer Jobs in Illinois
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