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C / C++ Jobs in Illinois.

All active C / C++ roles based in Illinois.

View C / C++ salary insights in Illinois →
Total jobs
47
positions indexed
New today
3
last 24 hours
Companies
20
actively hiring
Worldwide remote
0
from anywhere

How many C / C++ jobs in Illinois are there right now?

There are 47 open C / C++ jobs in Illinois on JobsRadar right now, from 20 companies hiring directly. 3 were added in the last 24 hours; the board was last refreshed on July 25, 2026 at 03:12 UTC.

search: c++ in: Illinois Clear all
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Okta
Staff Product Security Engineer
Okta
⚡ Apply early Bellevue, Washington; Chicago,... Onsite $180,000–$247,000
● New 👁 Seen ✓ Applied 7h ago
C3 AI
Forward Deployed Team Lead (Chicago)
C3 AI
⚡ Apply early Chicago, Illinois, United Stat... Onsite $130,000–$194,000
● New 👁 Seen ✓ Applied 10h ago
Green Thumb
Program Manager, Physical Security
Green Thumb
⚡ Apply early Chicago, Illinois, United Stat... Onsite $95,000–$105,000
● New 👁 Seen ✓ Applied 11h ago
CTC Lateral - Website & LinkedIn
C++ Senior Engineer - Market Data
CTC Lateral - Website & LinkedIn
⚡ Apply early Chicago, Illinois, United Stat... Onsite $225,000–$250,000
● New 👁 Seen ✓ Applied 1d ago
CTC Campus - Website
Systematic Quantitative Researcher - PhD
CTC Campus - Website
⚡ Apply early Chicago, Illinois, United Stat... Onsite $175,000–$200,000
● New 👁 Seen ✓ Applied 1d ago
CTC Lateral - Website & LinkedIn
Senior Java Engineer - Trade Capture
CTC Lateral - Website & LinkedIn
⚡ Apply early Chicago, Illinois, United Stat... Onsite $200,000–$225,000
● New 👁 Seen ✓ Applied 1d ago
CTC Lateral - Website & LinkedIn
Experienced Software Engineer - US
CTC Lateral - Website & LinkedIn
⚡ Apply early Chicago, Illinois, United Stat... Onsite $145,000–$225,000
● New 👁 Seen ✓ Applied 1d ago
CTC Lateral - Website & LinkedIn
Senior FPGA Engineer
CTC Lateral - Website & LinkedIn
⚡ Apply early Chicago, Illinois, United Stat... Onsite $225,000–$250,000
● New 👁 Seen ✓ Applied 1d ago
CTC Lateral - Website & LinkedIn
Senior Quantitative Trader - Delta One
CTC Lateral - Website & LinkedIn
⚡ Apply early Chicago, Illinois, United Stat... Onsite $225,000–$250,000
● New 👁 Seen ✓ Applied 1d ago
CTC Lateral - Website & LinkedIn
C++ Senior Engineer - Options Market Making Execution
CTC Lateral - Website & LinkedIn
⚡ Apply early Chicago, Illinois, United Stat... Onsite $200,000–$250,000
● New 👁 Seen ✓ Applied 1d ago
Eagle Seven
Senior Software Developer (Shared Services)
Eagle Seven
⚡ Apply early Chicago, Illinois, United Stat... Onsite $160,000–$160,000
● New 👁 Seen ✓ Applied 2d ago
Gotion, Inc.
Visual Systems Engineer (CCD Engineer), Cell Line
Gotion, Inc.
⚡ Apply early Manteno, Illinois Onsite $80,000–$120,000
● New 👁 Seen ✓ Applied 3d ago
Hudson River Trading
Software Engineering Internship (C++ or Python) – Summer 2027
Hudson River Trading
⚡ Apply early Austin, TX, United States; Chi... Onsite
● New 👁 Seen ✓ Applied 3d ago
Infleqtion
Senior Embedded Software Engineer
Infleqtion
⚡ Apply early Chicago, Illinois, United Stat... Onsite $140,000–$175,000
● New 👁 Seen ✓ Applied 4d ago
Optiver
Quantitative Researcher – HFT Futures/Equities
Optiver
⚡ Apply early Chicago, Illinois, United Stat... Onsite $200,000–$200,000
● New 👁 Seen ✓ Applied 4d ago
Hudson River Trading
Software Engineer (C++ or Python) – 2027 Grads
Hudson River Trading
⚡ Apply early Austin, TX, United States; Chi... Onsite $300,000–$300,000
● New 👁 Seen ✓ Applied 6d ago
Optiver
Quantitative Trader/Researcher – Systematic Options Trading
Optiver
⚡ Apply early Chicago, Illinois, United Stat... Onsite $200,000–$200,000
● New 👁 Seen ✓ Applied 1w ago
Optiver
Lead Data Engineer
Optiver
⚡ Apply early Chicago, Illinois, United Stat... Onsite $200,000–$200,000
● New 👁 Seen ✓ Applied 1w ago
Optiver
Software Engineer Intern (Summer 2027 - Chicago)
Optiver
⚡ Apply early Chicago, Illinois, United Stat... Onsite $80,000–$80,000
● New 👁 Seen ✓ Applied 1w ago
Optiver
Lead Data Architect
Optiver
⚡ Apply early Chicago, Illinois, United Stat... Onsite $200,000–$200,000
● New 👁 Seen ✓ Applied 1w ago
Optiver Private Jobs
FPGA Engineer
Optiver Private Jobs
⚡ Apply early Chicago, Illinois, United Stat... Onsite $200,000–$200,000
● New 👁 Seen ✓ Applied 1w ago
Optiver
Software Engineer - Trading Strategies
Optiver
⚡ Apply early Chicago, Illinois, United Stat... Onsite $200,000–$200,000
● New 👁 Seen ✓ Applied 1w ago
Optiver
FPGA Engineer
Optiver
⚡ Apply early Chicago, Illinois, United Stat... Onsite $200,000–$200,000
● New 👁 Seen ✓ Applied 1w ago
Optiver
Quantitative Researcher - SVT
Optiver
⚡ Apply early Chicago, Illinois, United Stat... Onsite $200,000–$200,000
● New 👁 Seen ✓ Applied 1w ago
Optiver
Graduate Software Engineer (2027 Start)
Optiver
⚡ Apply early Chicago, Illinois, United Stat... Onsite $200,000–$200,000
● New 👁 Seen ✓ Applied 1w ago

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Frequently asked questions

How many C / C++ jobs in Illinois are open right now?
47 C / C++ jobs in Illinois are open across 20 companies, as of July 25, 2026.
Which companies are hiring C / C++ jobs in Illinois?
Okta, C3 AI, Green Thumb, CTC Lateral - Website & LinkedIn and CTC Campus - Website are among the 20 companies currently hiring C / C++ jobs in Illinois.
How current are these listings?
Every listing comes straight from the employer’s own careers system and is re-checked three times a day. This page was last updated on July 25, 2026 at 03:12 UTC.

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