379 c software engineer jobs at 192 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).
GTS: Electronic market maker providing liquidity to global financial markets.
7+ YOEExpert in low-latency Linux C++ trading systems with 7+ years software engineering experience; proficiency with Git, gdb, Valgrind, Python, bash; BS/MS in engineering/computing/science; strong communication skills.
Headlands Technologies: A global proprietary trading firm utilizing quantitative algorithms.
Strong C++ ability, fundamentals of software engineering, experience building scalable distributed systems, network programming, and performance optimization; computing degree preferred or extensive professional experience.
DRW: Technology-driven principal trading firm operating in global financial markets
10+ YOE10+ years building high-availability server-side systems; 3+ years with modern C++ or Rust; strong multithreading and hardware/software interaction; bachelor's in CS/Engineering; strong communication and AI tooling familiarity.
Balyasny Asset Management: Global multi-strategy investment firm managing diverse financial assets.
Strong foundation in algorithms, data structures, distributed systems, and software design; proficiency in low-level C++; familiarity with automated testing and CI/CD; strong communication and collaboration skills.
Balyasny Asset Management: Global multi-strategy investment firm managing diverse alternative asset classes.
Strong foundation in algorithms, data structures, distributed systems, and software design; desire to learn low-level C++; familiarity with automated testing and CI/CD; excellent communication skills.
Flow Traders: Provides liquidity and market making across global financial markets.
5+ YOE5+ years C++ development experience, strong algorithms and multithreading knowledge, interest in high-performance systems, and good communication skills.
Krakow or Hyderabad or New York City or Chicago or London or Singapore or Hong Kong or Tokyo
HybridFull Time
Pico: Provides managed infrastructure and data services to financial markets.
4+ YOEBachelor's in Computer Science/Engineering (2:1) or equivalent, 4+ years development experience, expert C++ on Linux, Python, shell scripting, makefiles, multithreading, automated testing, gdb/Valgrind, and IP networking knowledge.
(Senior) Software Engineer - Data Management ( C#, Go or C++)
Munich or Chicago or Heidelberg or San Diego or Tel Aviv
HybridFull Time
Snke OS: Orchestrating healthtech for efficient and patient-centered care.
3+ YOE3+ years software development experience; proficiency in C#, Go or C++; experience with automated testing, HTTP/REST/JSON, gRPC/Protobuf, microservices; familiarity with healthcare standards (DICOM, HL7, FHIR); very good English.
California or Colorado or Connecticut or Florida or Georgia or Illinois or Kansas or Massachusetts or Maryland or Maine or New Jersey or North Carolina or New York or Oregon or Tennessee or Texas or Virginia or Washington or Austin or Tampa
$150k-$240k/yrHybridFull Time
NinjaOne: Unified IT platform for automated endpoint management and security.
10+ YOEBachelor's degree, 10+ years C++ development (C++17+), cross-platform systems experience (Windows/macOS/Linux), gRPC/Protocol Buffers, SQLite, CMake; experience with Java/Kotlin/Golang/Postgres/AWS helpful.
C++ Software Engineer- 2 Days Onsite- Chicago- FreeWheel
Chicago, Illinois, United States
$110k-$165k/yrHybridFull Time
ComcastNASDAQ: CMCSA: Provides global telecommunications, media content, and entertainment services.
5+ YOEBachelor's or equivalent experience, 3+ years software engineering (5+ preferred), strong systems design, experience with C++/compiled languages, Linux, and building scalable distributed systems.
Orlando or Florida or California or Massachusetts or New York or Colorado or Hawaii or Illinois or Maryland or Minnesota or New Jersey or Vermont or Washington or District of Columbia or United States
$93k-$164k/yrOnsiteFull Time
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
US citizen with interim Secret clearance; strong C/C++ and multi-core/multithreaded programming, object-oriented design, Linux or VxWorks, hardware/software integration experience; familiarity with JIRA, Git, Confluence; Agile/Scrum.
Akuna Capital: Proprietary trading firm providing liquidity in global options markets.
Pursuing a technical bachelor's/master's/PhD (graduating by Aug 2027), experience with modern C++, familiarity with distributed/asynchronous systems, debugging and profiling tools, strong problem solving and communication skills.
Arizona or Florida or Illinois or Louisiana or Maryland or Michigan or Minnesota or Missouri or New Jersey or Nevada or New York or Ohio or Oregon or Pennsylvania or Tennessee or Texas or Virginia or Washington or Wisconsin
$108k-$135k/yrRemoteFull Time
Enterprise Mobility: Provider of vehicle rental and diverse mobility solutions.
3+ YOE3+ years application development (.NET/C#) or bootcamp+5yrs, experience with ASP.NET Core, SQL/NoSQL, cloud and container technologies, CI/CD, Agile; must be authorized to work in the U.S. and located in listed states.
DKW Communications: Provides IT modernization and cybersecurity services for government agencies.
5+ YOEU.S. citizen able to obtain Secret clearance; Bachelor's in engineering/computer science; 5+ years software development for modeling and simulation; experience with Windows and Linux; proficiency in Assembly, C/C++, .NET, Java; CompTIA Security+ preferred.
Assembly, C, C++, Microsoft .Net, C#, VB, Java, Microsoft Windows, Windows 7, Windows 10, Windows Server 2008R2, Windows Server 2012R2, Red Hat Enterprise Linux 5, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Linux
Illinois or Kentucky or Kansas or Idaho or Washington or Michigan or Florida or California or Texas or Oklahoma or Tennessee or North Carolina or Minnesota or Massachusetts or Indiana or Georgia or Arizona or Missouri or Alabama or Connecticut or District of Columbia or South Carolina or Oregon
$79k-$119k/yrHybridFull Time
Relativity: AI-powered platform for legal discovery and data intelligence.
Backend software engineering role; experience with C# or Python; strong distributed systems knowledge; cloud experience preferred.
JLLNYSE: JLL: Global commercial real estate and investment management services.
Bachelor's in CS/Engineering/MIS or equivalent; proficiency in C, C++, C#, SQL, Transact-SQL, ASP.NET, HTML/CSS/JavaScript/jQuery; experience with RDBMS/Microsoft SQL Server and IIS; strong OOP and DB design skills.
C, C++, C#, SQL, Transact-SQL, ASP.NET, HTML, CSS, JavaScript, jQuery, RDBMS, Microsoft SQL Server, Microsoft IIS, Android, iOS
Principal Software Developer - Full Stack (Unity, C#)
Austin or San Mateo or Carlsbad or Chicago or Eugene or Toronto
$114k-$180k/yrOnsiteFull Time
Zynga: Develops and publishes social and mobile video games globally.
6+ YOEB.Sc. or equivalent, 6+ years game/mobile software experience, expert C#, 3+ years Unity, shipped mobile titles, experience with performance profiling, AWS, Kubernetes, Datadog, and git.
Unity, C#, AWS, Kubernetes, Datadog, git, Claude Code
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
2+ YOEBS in Electrical/Computer Engineering (or related STEM) with 2+ years experience (or MS with 0+ years). Experience with C#, C, Java or LabWindows CVI; troubleshooting hardware/software/firmware; test software development; ability to obtain Secret clearance; US citizenship required.
Federal SignalNYSE: FSS: Manufacturer of infrastructure maintenance and public safety equipment.
5+ YOEBachelor's in software engineering,5+ years engineering experience,web and mobile service development,proficiency with SQL,C#,C++,JavaScript/.NET,REST APIs,strong communication and design skills.