Engineering (General) Internships in Illinois

29 open engineering (general) internships in illinois from 21 companies, 24 added in the last 7 days. 72% list pay; the median posted rate is $27/hr (middle half: $26–$34/hr). Most openings: HNTB (4), Caterpillar Inc. (3), AECOM (2), ABB (2).

Updated Oct 19, 2026 from employer career pages · newest posting Oct 12, 2026.

A
Rail Engineering Intern
AECOM · Chicago, IL

Internship Summer 2027

6 days ago
V
Field Engineering Intern
Veolia · Decatur, IL

Internship $21.32–$24.21/hr

11 days ago
L
Power Delivery Engineering Intern
Leidos · Chicago, IL

Internship

11 days ago
TF
Summer 2027 Intern-Networking and Computer Engineering
The Federal Reserve System · Chicago, IL

Internship Summer 2027$20–$33/hr

18 days ago
ZE
Engineering Intern (Summer 2027)
Zurn Elkay Water Solutions · Lanark, IL

Internship Summer 2027$19.50–$21.50/hr

18 days ago
A
Application Engineering Intern - Summer 2027
ABB · Alpharetta, GA +1

Internship Summer 2027$20–$34/hr

19 days ago
A
Application Engineering Intern - Spring 2027
ABB · Alpharetta, GA +1

Internship Spring 2027$20–$34/hr

19 days ago
FI
Injection Molding Engineering Co-Op
Flextronics International · Libertyville, IL

Internship $27.50–$44.50/hr

19 days ago
A
Engineering Intern II
AECOM · Chicago, IL

Internship

19 days ago
C
Engineering Summer Interns 2027
Continental · Mount Vernon, IL

Internship 2027

24 days ago
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FI
Plastic Molding Engineering Co-Op - Spring 2027
Flextronics International · Libertyville, IL

Internship Spring 2027$27.50–$44.50/hr

1 month ago
I
Sustainability & Energy Engineering Intern
IMEG · Naperville, IL +8

Internship Summer 2027$22–$24/hr

1 month ago
P
Roadway Engineering Intern - Summer 2027
Parsons · Chicago, IL

Internship Summer 2027$22.93–$40.14/hr

1 month ago
I
Engineering Knowledge Management Intern
Ingredion · Westchester, IL

Internship Summer 2026$20–$31/hr

1 month ago
HM
Mining Engineer Intern
Heidelberg Materials · Mccook, IL

Internship

1 month ago
A
Summer Intern - Project Engineer
Allegion · Princeton, IL

Internship $25–$26/hr

1 month ago
B
Service Engineer Intern
Bosch · Lincolnshire, IL

Internship $23.51–$28/hr

1 month ago
C
Linux Engineer Intern
Cboe · Chicago, IL +2

Internship $22–$42/hr

1 month ago
RR
Engineering Summer Intern
Regal Rexnord · Milwaukee, WI +12

Internship $21.50–$28/hr

1 month ago
S
Summer 2027 Internship - Biomedical Engineering - Illinois
Stryker · Cary, IL

Internship Summer 2027

1 month ago
H
New Grad Field Engineer I - Summer 2027 (For Current/Former HNTB Interns Only)
HNTB · Chicago, IL

Internship Summer 2027

1 month ago
H
Returning Co-op Engineer- Fall/Winter/Spring 2026-2027-Great Lakes Division (For Current/Former HNTB Co-ops only)
HNTB · Milwaukee, WI (East Wisconsin Avenue) +17

Internship Spring 2026$21.07–$31.60/hr

1 month ago
H
Returning Intern Engineer - Summer 2027 - Great Lakes Division (For Current/Former HNTB Interns Only)
HNTB · Milwaukee, WI (East Wisconsin Avenue) +17

Internship Summer 2027$21.07–$31.60/hr

1 month ago
H
Intern Engineer - Summer 2027
HNTB · Chicago, IL

Internship Summer 2027$23.18–$34.76/hr

1 month ago
CI
2027 Summer Corporate Intern - Engineering
Caterpillar Inc. · Mossville, IL +25

Internship 2027$25–$43/hr

2 months ago
CI
2027 Engineering Corporate Internship Program Welding
Caterpillar Inc. · Mossville, IL

Internship 2027$25–$43/hr

2 months ago
CI
2027 Engineering Corporate Parallel Co-op Program
Caterpillar Inc. · Mossville, IL +5

Internship 2027$25–$43/hr

2 months ago
TB
Boeing Summer 2027 Internship Program (Paid) – Engineering
The Boeing Company · Seattle, WA +65

Internship Summer 2027

2 months ago
O
Engineering Intern / Co-op
OceanComm · Chicago, IL

Internship $35–$55/hr

4 months ago