39 software developer internship jobs at 32 companies in Illinois
🚀PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yrOn-SiteFull Time
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
Software Engineer – 2027 Internship Program (June Start)
Chicago, Illinois, United States
$150k-$200k/yrOnsiteInternship
Old Mission: Quantitative proprietary trading firm specializing in global market making.
Currently pursuing Bachelors or Masters in CS/CE or similar, 3.0+ GPA, junior standing with graduation Dec 2027 or May 2028, comfortable with C++, Python or TypeScript, strong CS fundamentals, able to start June 1, 2027.
PalantirNasdaq: PLTR: Developing software platforms for data integration and analytics.
Engineering degree preferred; proficiency in one or more languages such as Python, Java, C++, TypeScript/JavaScript; graduating Dec 2027 or Spring 2028; willing to travel 25–50%.
Jump Trading: Global proprietary trading firm specializing in algorithmic and high-frequency strategies
Proficiency in TypeScript and Python, web frameworks, Linux development, strong data structures/algorithms and threading knowledge, teamwork and reliable availability; internship-level candidates encouraged.
$108k-$140k/yrHybridMultiple Commitments Available
Reverb: Marketplace for buying and selling new and used musical gear.
2+ YOE2-4+ years software engineering; Ruby/Rails and JS/React; GraphQL familiarity; API design; strong communication; AI workflows and related tools a plus (TS, Datadog, Docker, Kubernetes, GitHub Actions).
DRW: Technology-driven principal trading firm operating in global financial markets
Pursuing BS/MS/PhD in CS, CE, Physics, Math, ML or related; experience with network/multi-threaded programming; strong algorithms and OOP; skills in C++, Python, or Java; strong problem-solving and communication.
Pursuing BS, MS, or PhD in STEM with expected graduation Fall 2027–Spring 2028; strong Python/C++; knowledge of algorithms and systems; collaborative mindset; eager to learn software design and testing.
Python, C++, Git, Linux, Refactoring, Test Driven Development
Software Engineering Internship (C++ or Python) – Summer 2027
Austin or Chicago or New York City or Singapore or London
$6k/wkOnsiteInternship
Hudson River Trading: A quantitative firm using technology to trade global financial markets.
Full-time undergraduate student graduating 2028, programming experience in Python/C/C++, strong problem solving and communication skills, eligible for full-time roles in 2028.
IMC: Global trading firm providing liquidity to financial markets.
0+ YOECurrent university student graduating Sep 2027–Jul 2028 pursuing CS/Engineering/related degree; strong algorithms and data structures knowledge; proficiency in a programming language (Java or C++ preferred); able to start June 7, 2027.
Motorola SolutionsNYSE: MSI: Provides mission-critical communications and public safety technology.
Embedded software, cybersecurity, and reverse engineering experience; strong C/C++, Python; Linux; BS/MS in CS/CE/Software; US citizenship with ability to obtain clearance; TS/SCI preferred.
Chicago Trading Company: Provides liquidity and manages risk in global derivatives markets.
Pursuing a Bachelor’s or Master’s in CS/CE or similar, graduation Dec 2027–Jun 2028; Java/C++/Python experience; ability to relocate to Chicago for full 8-week summer program; strong CS fundamentals and teamwork.
Optiver: Global market maker providing liquidity to financial markets.
Student pursuing BS/MS/PhD in Computer Science or Computer Engineering (graduating Dec 2027–Jun 2028), proficient in C++, Python, or Java, strong CS fundamentals and problem-solving, ability to work in fast-paced team environment.
Software Engineer Intern - Full Stack Web, Summer 2027
Chicago, Illinois, United States
$145k/yrOnsiteInternship
Akuna Capital: Proprietary trading firm providing liquidity in global options markets.
Seeking a student pursuing a technical degree (graduating by Aug 2028) with strong web skills (React, TypeScript, Python), Git, testing, Linux; major GPA 3.5+, US work authorization required (OPT/STEM accepted).
React, TypeScript, Python, JavaScript, HTML/CSS, Linux, pytest, Jest, Storybook, Git
BrunswickNYSE: BC: Designs and manufactures marine engines and recreational boats.
US work authorization; enrollment in a BS in Computer Science; portfolio; Python and C++; game engine experience; basic CG knowledge; willingness to explore new techniques.
Headlands Technologies: A global proprietary trading firm utilizing quantitative algorithms.
Degree in a technical field required; strong statistics and ML experience; software development skills in Java, C++, or Python; interest in systematic trading; internship experience preferred; collaborative and results-focused.
Graduate C++ Developer (2027 Incoming Graduate, Full-Time)
Chicago, Illinois, United States
$125k-$200k/yrOnsiteFull Time
3Red Partners: Develops and executes automated quantitative trading strategies globally.
1+ YOEStudent graduating in 2027 with CS/Engineering degree, 1+ C++ internship experience, knowledge of low-latency systems, STL, Boost, Linux, git, and strong problem-solving and communication skills.
BlackEdge Capital: Proprietary trading firm specializing in options market making.
Pursuing a CS/CE or related degree (graduating 2028), strong problem-solving, knowledge of low-level computer science, exposure to design/architectural patterns, and interest in quantitative finance.
California or Georgia or Texas or Colorado or Massachusetts or Washington or Illinois or Wisconsin or New York or Oregon or Pennsylvania or North Carolina or Virginia
Pursuing a Master's in CS or related field, experience coding in two or more general-purpose languages, knowledge of data structures/algorithms, English proficiency, available to work full-time for 12 weeks in the U.S.
C, C++, Java, JavaScript, Python, C#, Kotlin, Go, Typescript, Unix/Linux, Electronic Medical Records (EMR)