Engineering Jobs in Illinois, United States

1,000 jobs available

Find Engineering opportunities in Illinois, United States. Browse 1,000 open positions from top employers in the area.

Showing 20 of 1,000 jobs

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Senior Manager, Engineering

TreeHouse Foods

Illinois,US Full-time Remote USD132,300 - USD198,500 / year

Engineering Capital Projects team drives multi‑site capital planning and execution for TreeHouse Foods' manufacturing network. The Senior Manager leads a high‑performing engineering group to develop a 5‑year capital plan, oversee initiative management, and ensure safety, quality, and budget targets across U.S. and Canada plants.

Last seen Jul 12, 2026
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Senior Software Engineer

Relativity

Illinois,US Full-time Hybrid USD126,000 - USD190,000 / year

Engineering Hub team at Relativity builds internal platforms that boost developer productivity across the company, including a developer portal, software catalog, and AI‑assisted knowledge base. The role designs, builds, and operates cloud‑native platform solutions, creates data pipelines for developer metrics, and defines frameworks for AI tooling discoverability and governance.

Last seen Jul 12, 2026
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Engineering Technician - Air Traffic Systems (100% Travel)

Parsons

IL Full-time USD16 - USD71 / hour

Engineering Technician – Air Traffic Systems at Parsons works on installing and upgrading communications and automation systems across FAA facilities nationwide. The role involves electrical installation, civil construction, and equipment testing while traveling 100% across U.S. states and territories.

Last seen Jul 12, 2026
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Autonomy Software Development Engineer

Caterpillar

Mossville, Illinois, United States of America Full-time On-site USD87,480 - USD142,200 / year

Engineering team developing autonomous large mining trucks. Focus on C++ software, architecture, functional safety, and production quality.

Last seen Jul 12, 2026
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Engineering Manager - Large Mining Trucks

Caterpillar

Decatur, Illinois, United States of America Full-time On-site USD159,120 - USD238,680 / year

Engineering Manager leading a 9‑person team across Tucson, AZ and Decatur, IL to design, develop, and continuously improve Ultra Class Large Mining Trucks (320‑410T). Drives product quality, Built‑In Quality processes, and operational excellence, aligning engineering, manufacturing, software, and validation teams.

Last seen Jul 12, 2026
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C

Engineering Intern

Caterpillar

Pontiac, Illinois, United States of America Internship On-site USD25 - USD43 / hour

Engineering Intern at Caterpillar’s Pontiac facility will support Fuel System and Aftertreatment components, applying data analysis, continuous improvement, and documentation skills. Part‑time during school year (10‑15 hrs/wk) and full‑time summer (40 hrs/wk).

Last seen Jul 12, 2026
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Engineering Intern

Caterpillar

Pontiac, Illinois, United States of America Internship On-site USD25 - USD43 / hour

Part-time engineering intern at Caterpillar’s Pontiac facility supporting fuel system and aftertreatment components. Works 10‑15 hrs/week during school year, 40 hrs/week in summer.

Last seen Jul 12, 2026
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Engineering Project Team Lead - Electrification

Caterpillar

Mossville, Illinois, United States of America Full-time On-site USD126,000 - USD189,000 / year

Engineering Project Team Lead - Electrification at Caterpillar leads concepting, design, and development of medium voltage power electronic components and integrated systems for electric drive and stationary power conversion applications. The role partners with global design teams, guides project execution, collaborates on electrical design, circuit schematics, component prints, 3D models, and supplier selection.

Last seen Jul 12, 2026
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Engineering Physicist II

Fermilab

Batavia, Illinois, United States of America Full-time On-site USD88,800 - USD116,900 / year

Fermilab is seeking an Engineering Physicist II to support the design, development, testing, and commissioning of beamline and beam delivery systems for its Industrial Superconducting Radio Frequency (SRF) accelerator programs. The role blends physics analysis and engineering design, contributing to beam transport, beam delivery mechanisms, beamline instrumentation, and mechanical integration of accelerator subsystems.

Last seen Jul 13, 2026
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Engineering Project Team Leader

Caterpillar

Mossville, Illinois, United States of America Full-time On-site USD128,470 - USD192,710 / year

Caterpillar seeks an experienced Engineering Project Team Leader to integrate batteries, motors, and power electronics into electrified powertrain solutions. The role involves collaborating with cross‑functional teams, defining system requirements, leading technical demonstrations, and managing high‑risk projects to meet performance and sustainability goals.

Last seen Jul 13, 2026
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Engineering Project Team Leader – Hydraulic Installation

Caterpillar

Decatur, Illinois, United States of America Full-time On-site USD128,470 - USD192,710 / year

Caterpillar seeks an Engineering Project Team Leader to manage complex hydraulic installation projects across multiple off‑highway truck platforms, leading cross‑functional teams and driving NPI and continuous improvement initiatives.

Last seen Jul 13, 2026
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Wiring Harness Component Engineer

Caterpillar

Mossville, Illinois, United States of America Full-time On-site USD95,640 - USD143,520 / year

Engineering role at Caterpillar for Wiring Harness Component Engineer. Responsible for concept, design, and development of wiring harness components across Caterpillar machines, engines, and electrification applications.

Last seen Jul 12, 2026
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Engineering Project Team Leader - Electrification

Caterpillar

Mossville, Illinois, United States of America Full-time On-site USD126,000 - USD189,000 / year

Engineering Project Team Leader - Electrification at Caterpillar leads a cross‑functional team to ensure the quality, velocity, cost, and aftermarket coverage of electric drive components for Caterpillar’s mining and construction equipment. The role drives product health initiatives for induction motors, switched reluctance motors, generators, and resistor grids, resolves production issues, manages product cost, prioritizes supply risk, and supports motor aftermarket programs.

Last seen Jul 12, 2026
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Engineering Project Team Leader - ePowertrain Systems

Caterpillar

Mossville, Illinois, United States of America Full-time On-site USD126,000 - USD189,000 / year

Caterpillar is hiring an Engineering Project Team Leader for its ePowertrain Systems division in Mossville, Illinois. The role leads validation strategy and activity planning for electric powertrain systems, collaborating with systems, lab, and machine development teams.

Last seen Jul 12, 2026
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Engineering Fellow - Machine Network Technology Strategist

Caterpillar

Mossville, Illinois, United States of America Full-time On-site USD156,000 - USD234,000 / year

Engineering Fellow - Machine Network Technology Strategist Caterpillar Apply Now on Workday Raw Job Data: This page contains the complete JSON response from the Workday API for this job posting. You can copy the JSON data below for analysis or processing.

Last seen Jul 12, 2026
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Engineer - Design

Caterpillar

Pontiac, Illinois, United States of America Full-time On-site USD95,640 - USD143,520 / year

Caterpillar Inc. seeks an Engineer - Design to develop and support advanced high pressure fuel systems for Caterpillar & Perkins engines. Responsibilities include NTI/NPI program leadership, hands‑on testing, structural/hydraulic/electrical analysis, supplier collaboration, validation, manufacturing/assembly planning, and mechatronics control strategy development.

Last seen Jul 12, 2026
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Engineering Project Team Leader

Caterpillar

Decatur, Illinois, United States of America Full-time Hybrid USD126,000 - USD189,000 / year

Lead engineering projects at Caterpillar’s Decatur facility, managing planning, resources, and cross‑functional teams to evaluate structural performance of large mining, construction, and earthmoving machine systems. Apply advanced numerical analysis, finite element, multibody dynamics, and structural dynamics to validate designs, conduct pre‑test planning, on‑machine testing, and post‑test analysis.

Last seen Jul 12, 2026
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2026 Engineering Rotational Development Program- Welding Engineering

Caterpillar

Mossville, Illinois, United States of America Full-time On-site USD87,480 - USD131,280 / year

Engineering Rotational Development Program (ERDP) – Welding Track at Caterpillar develops next‑generation welding engineering leaders through three 12‑month rotations across U.S. facilities. Participants support research, development, product design, analysis, automation, and supplier quality, building welding and fabrication process expertise.

Last seen Jul 12, 2026
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2026 Engineering Rotational Development Program - Product Development Track (ERDP)

Caterpillar

Mossville, Illinois, United States of America Full-time On-site USD79,800 - USD143,520 / year

Engineering Rotational Development Program focuses on developing next-gen industry leaders through 12-18 month rotational assignments in product design, simulation, testing, controls, electronics, embedded software, validation, data analytics, and process engineering.

Last seen Jul 12, 2026
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Engineering Team Leader - Hydraulic Installation

Caterpillar

Decatur, Illinois, United States of America Full-time On-site USD110,520 - USD165,840 / year

Engineering Team Leader – Hydraulic Installation at Caterpillar leads a high‑impact team designing and installing hydraulic systems for Large Wheel Loader and Underground Hard Rock lines. The role drives innovation, mentors engineers, and collaborates across the value chain to deliver durable, high‑performance equipment.

Last seen Jul 12, 2026
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Engineering Jobs in Illinois: FAQ

How many Engineering jobs in Illinois are open right now?

1,000 Engineering jobs in Illinois are live on NextGig, all seen active within the last 45 days. The list refreshes daily as new roles are posted and filled ones drop off.

Which companies are hiring for Engineering jobs in Illinois?

Employers with current openings include TreeHouse Foods, Relativity, Parsons, Caterpillar, Fermilab. Every listing links straight to the employer's application page.

What do Engineering jobs in Illinois pay?

20 of the 20 newest listings disclose pay, for example USD132,300 - USD198,500 / year at TreeHouse Foods, USD126,000 - USD190,000 / year at Relativity, USD16 - USD71 / hour at Parsons. Open a listing for the full compensation details.

Are any of these roles remote?

Of the 20 newest listings on this page, 1 is remote and 2 are hybrid. The work model is shown on each job card.