26 software engineering intern jobs at 18 companies in Crystal Lake, IL

3d
Save
Mark Applied
Hide
Software Engineering Internship - Summer 2027
Chicago, Illinois, United States
$15k/mo OnsiteInternship
Chicago Trading Company
Chicago Trading Company: Market maker providing liquidity for financial derivative products.
Pursuing BS/MS in CS or similar, graduating Dec 2027–Jun 2028; foundation in data structures, OOP, algorithms; experience with Java,C++,or Python; willing to relocate to Chicago and participate full 8-week program.
Java, C++, Python
2w
Save
Mark Applied
Hide
Software Engineering Internship - Summer 2027
Chicago, Illinois, United States
$15k/mo HybridInternship
Chicago Trading Company
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.
Java, C++, Python
1mo
Save
Mark Applied
Hide
Engineering Intern / Co-op
Chicago, Illinois, United States
$35-$55/hr OnsiteFull Time, Internship
OceanComm
OceanComm: High-speed wireless acoustic modems for underwater video and data.
Actively enrolled STEM student (EE/CompE/MechE or related), full-time on-site for minimum 12 weeks, proficiency in C/C++/Python and Git, strong fundamentals in software or hardware, U.S. person requirement.
C, C++, Python, Git, TypeScript, Vue, ROS2, SystemVerilog, UVM, cocotb
1d
Save
Mark Applied
Hide
Software Engineer Intern (Summer 2027)
Chicago, Illinois, United States
$18-$30/hr OnsiteMultiple Commitments Available
Sargent & Lundy
Sargent & Lundy: Engineering and consulting services for the power industry.
Currently pursuing a bachelor's degree in a technical field; coursework or experience with C#, .NET, React, HTML, CSS, JavaScript, JSON, MVC, APIs, SQL Server, Visual Studio, Azure, and GitHub.
C#, .NET, React, MVC, Python, Go, PowerShell, HTML, CSS, JavaScript, JSON, SOAP, REST, SQL Server, Visual Studio, Microsoft Azure, GitHub, Active Directory, Power BI, ASP.NET Core, Azure Functions, API Management (APIM), MATLAB, Microsoft Excel
3w
Save
Mark Applied
Hide
Engineering Intern
Beloit, Wisconsin, United States
$25-$30/hr OnsiteInternship
Mid-States Concrete Industries
Mid-States Concrete Industries: Produces and installs precast concrete building systems.
Enrolled in civil engineering (structural emphasis), proficient with Microsoft Word/Excel/Outlook, experience with structural analysis/design software, strong communication and teamwork skills.
Microsoft Word, Microsoft Excel, Microsoft Outlook
1mo
Save
Mark Applied
Hide
Software Engineer Intern (Summer 2027 - Chicago)
Chicago, Illinois, United States
$80k/yr OnsiteInternship
Optiver
Optiver: Global market maker providing liquidity to financial markets.
Student in CS or CE on track to graduate Dec 2027–Jun 2028; proficient in C++, Python, or Java; strong CS fundamentals, problem-solving, and collaboration skills.
C++, Python, Java
1mo
Save
Mark Applied
Hide
Software Engineer Intern - Summer 2027
Chicago, Illinois, United States
$200k/yr OnsiteInternship
IMC
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.
Java, C++
4w
Save
Mark Applied
Hide
Campus Software Engineer (Intern)
Chicago, Illinois, United States
$250k/yr OnsiteInternship
Jump Trading
Jump Trading: Global proprietary trading firm specializing in algorithmic and high-frequency strategies
Proficiency in C++ or Python on Linux, strong data structures and threading knowledge, coursework or experience in algorithms/OS, reliable availability, collaborative team skills.
C++, Python, Linux, Claude Code
3w
Save
Mark Applied
Hide
Software Engineering Internship (C++ or Python) – Summer 2027
Austin or Chicago or New York City or Singapore or London
$6k/wk OnsiteInternship
Hudson River Trading
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.
Python, C, C++
3w
Save
Mark Applied
Hide
Software Engineer Intern - C++, Summer 2027
Chicago, Illinois, United States
$145k/yr OnsiteIntern
Akuna Capital
Akuna Capital: Proprietary trading firm providing liquidity in global options markets.
Pursuing a technical degree, graduating by Aug 2028, legal U.S. work authorization, experience with modern C++ and related tooling; strong problem-solving and communication skills.
C++20, C++23, C++, perf, gprof, vtune, Python, shell, GDB, Valgrind, AddressSanitizer
4d
Save
Mark Applied
Hide
2027 Code for Good Hackathon - Software Engineer Program - Summer Internship – United States
Chicago or Columbus or Houston or Jersey City or New York City or Palo Alto or Plano or Wilmington or Tampa or Brooklyn
$46-$60/hr OnsiteInternship, Full Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
Pursuing a bachelor’s or 5th-year master’s in CS-related field with graduation Dec 2027–Jun 2028; ability to write secure code, collaborate across teams, use automation and AI tools, and be authorized to work in the U.S.
HackerRank
2w
Save
Mark Applied
Hide
AI Agent Builder Intern
Hoffman Estates, Illinois, United States
RemoteInternship
Sears Home Services
Sears Home Services: Residential appliance repair, HVAC maintenance, and home improvement services.
0+ YOEPursuing related degree, some undergraduate education, <1 year related experience acceptable; requires familiarity with AI tools, prompt engineering, workflow automation, strong communication and analytical skills.
Paperclip, Python, JavaScript, OpenAI, Anthropic, APIs
2w
Save
Mark Applied
Hide
SAP iXp Intern - AI Engineer
Naperville, Illinois, United States
HybridInternship
SAP
SAPFrankfurt Stock Exchange: SAP: Sells enterprise resource planning and business management software solutions.
Pursuing a BS/MS in CS, Engineering, Mathematics or related; comfortable with Python; coursework/experience with ML/LLM frameworks; basic SQL and data analysis; strong problem-solving and communication skills.
Python, JavaScript, TypeScript, PyTorch, Hugging Face, LangChain, LlamaIndex, SQL, FastAPI, React, Docker, Git, SAP BTP, SAP HANA Cloud, SAP Datasphere, Azure, GCP, AWS
1w
Save
Mark Applied
Hide
Platform Engineer Intern
Chicago, Illinois, United States
$175k/yr OnsiteInternship
DRW
DRW: Technology-driven principal trading firm operating in global financial markets
Pursuing BS/MS/PhD in CS/EE/CE/physics/math or related; exposure to networking, Linux/Unix, systems performance, capacity planning, Kubernetes, Docker, CI/CD; scripting in Python and Bash; understanding of distributed systems.
Kubernetes, Docker, CI/CD, Python, Bash, Linux/Unix
1mo
Save
Mark Applied
Hide
Senior AI Engineer
Chicago, Illinois, United States
$148k-$204k/yr RemoteFull Time
ActiveCampaign
ActiveCampaign: Provides automated marketing and customer relationship management software.
5+ YOE5+ years in software/platform/infrastructure engineering; experience building internal platforms, cloud deployments, observability, integrations, and AI agent/LLM workflows; strong system design and cross-functional communication.
LinkedIn Learning, Calm
2w
Save
Mark Applied
Hide
Mechanical Project Engineer
Chicago, Illinois, United States
$110k-$130k/yr HybridFull Time
Epstein
Epstein: Provides integrated architecture, engineering, and construction services globally.
6+ YOEBachelor's in Mechanical Engineering, 6+ years MEP project experience, HVAC design and load calculations, MEP project management, knowledge of codes (International, Chicago Mechanical, ASHRAE), Revit and HVAC software, strong communication.
Microsoft Word, Microsoft Excel, Microsoft Outlook, REVIT, Trane/Trace, Carrier HAP
1w
Save
Mark Applied
Hide
AI Solutions Engineer
Lockport, Illinois, United States
$75k-$95k/yr HybridFull Time
Andromeda Technology Solutions
Andromeda Technology Solutions: Provides managed IT and building security services for businesses.
Build internal AI tools and prototypes, work with APIs and MCP servers, connect systems, demonstrate programming and integration experience, and pass drug screen and hands-on testing.
APIs, MCP servers, GitHub
1w
Save
Mark Applied
Hide
Platform Engineer
Chicago, Illinois, United States
$140k-$150k/yr HybridFull Time
Hightower
Hightower: Provides independent wealth management and financial planning services.
3+ YOE3+ years building integrations/internal tools; proficiency in TypeScript/JavaScript, React/Next.js; working knowledge of Python and SQL; experience with AWS, Salesforce, Snowflake; familiarity with prompt/agent-assisted development.
TypeScript, JavaScript, React, Next.js, Python, SQL, Salesforce, Snowflake, AWS, EventBridge, SQS, SNS, Lambda, ECS, Fargate, DynamoDB, S3, CloudWatch, CDK
1mo
Save
Mark Applied
Hide
Development Manager
Willowbrook, Illinois, United States
OnsiteFull Time
Sepire
Sepire: Provides secure printing, mailing, and multi-channel communication services.
Proven experience managing software teams, strong technical understanding of architecture, integrations, and data workflows, experience with internal and offshore teams, strong communication and problem-solving, and ability to improve engineering delivery and reduce technical debt.
Microsoft .NET, Microsoft SQL Server, APIs, Microsoft Azure
1d
Save
Mark Applied
Hide
New Grad Returning Planner I- Summer 2027-Great Lakes Division (For Current/Former HNTB Interns Only)
Milwaukee or Valparaiso or Sterling Heights or East Lansing or Ashwaubenon or Jackson or Indianapolis or Downers Grove or Detroit or Allen Park or Cleveland or Grand Rapids or Columbus or Westfield or Blue Ash or Chicago or Minneapolis or Madison
$59k-$89k/yr OnsiteFull Time
HNTB
HNTB: Infrastructure design and engineering for transportation and public works
Bachelor’s degree in urban planning, geography, engineering, or related field; GIS software and Microsoft Office Suite knowledge; planning internship or prior planning experience preferred.
GIS, Microsoft Office Suite