260 c software developer jobs at 149 companies in Downers Grove, IL
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Senior Software Engineer C++
New York City or Chicago
$150k-$225k/yrHybridFull Time
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.
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.
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.
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.
(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.
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.
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.
Chicago or Arizona or California or Colorado or Connecticut or Delaware or Florida or Georgia or Illinois or Indiana or Massachusetts or Maryland or Minnesota or North Carolina or New Jersey or New York or Pennsylvania or Tennessee or Texas or Utah or Virginia
HybridContract
FDM GroupLondon Stock Exchange: FDM: FDM provides IT consultancy and technology staff augmentation services.
5+ YOEBachelor's degree and 5+ years software development experience with C#, .NET, SQL Server, T-SQL, Git; strong analytical and communication skills; financial services experience preferred.
C#, .NET Framework, .NET Core, .NET 8+, ASP.NET MVC, ASP.NET Core, REST APIs, Microsoft SQL Server, T-SQL, Entity Framework, LINQ, JSON, XML, Visual Studio, Azure DevOps, Git, SQL Server Management Studio (SSMS), Power BI, Jira, SSIS, SSRS, SQL Server Agent, Docker, CI/CD pipelines
Senior Lead Software Engineering - C++ low latency
Chicago or Plano or Jersey City
$147k-$225k/yrOnsiteFull Time
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
10+ YOE10+ years software engineering experience, advanced C and C++ skills, cloud-native experience, system design and operational stability expertise, experience with AI-assisted development practices.
Hopkins or Atlanta or Chicago or Brookfield or Irving
$133k-$157k/yrHybridFull Time
U.S. BankNYSE: USB: Provider of personal, business, and institutional financial services.
6+ YOE6–8+ years software engineering experience, strong C#/.NET Core and Azure skills, SPA and microservices experience, MS SQL performance tuning, CI/CD and containerization knowledge, bachelor's degree or equivalent.
FDM GroupLondon Stock Exchange: FDM: Provides IT consulting, technical training, and staff augmentation services.
5+ YOE5+ years software development experience; bachelor's degree in CS/Engineering/Information Systems; strong C#, .NET, ASP.NET, SQL Server, T-SQL, EMR skills; Git and Azure DevOps experience; strong analytical and communication skills.
C#, .NET Framework, .NET Core, .NET 8+, ASP.NET MVC, ASP.NET Core, SQL Server, T-SQL, Entity Framework, Azure, SSIS, SSRS, Power BI, Azure DevOps, Docker, Visual Studio, Git, SQL Server Management Studio (SSMS), Jira
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.
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
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 preferred, 5+ years software engineering experience, strong C++ and compiled-language skills, Linux experience, systems-at-scale, performance optimization, observability, on-call participation, and strong communication.
New York City or London or Singapore or Austin or Chicago
$300k/yrOnsiteFull Time
Hudson River Trading: A quantitative firm using technology to trade global financial markets.
BS/MS in CS or related; proficient in C/C++ or Python, strong CS fundamentals, Linux/UNIX knowledge, excellent debugging and problem-solving, eligible for full-time roles in 2027.
Warrior Insurance Network: Provides auto insurance and management services for member carriers.
5+ YOE5+ years professional software development experience; strong C#, .NET, React skills; proficiency with Git, CI/CD, automated testing, AI-assisted development tools; bachelor's in CS/engineering or equivalent.
C#, .NET, React, Git, CI/CD, Microsoft Azure, AWS, Claude Code, Codex, GitHub Copilot, SQL, REST APIs
Preferred Risk Insurance Services: Provides professional management services for the insurance industry.
5+ YOE5+ years professional software development experience; advanced proficiency with C#, .NET, React; Git; CI/CD and automated testing experience; bachelor's in CS/Engineering or equivalent.
C#, .NET, React, Git, Microsoft Azure, AWS, Claude Code, Codex, GitHub Copilot, SQL
Kranze Technology SolutionsNYSE: SPXC: Develops countermeasure systems and networking solutions for military aircraft.
Bachelor's or Master's in CS/CE preferred; proficient in C/C++; Python and RHEL experience a plus; embedded software, OS, interrupt and driver knowledge; hardware/software troubleshooting; US citizenship and ability to obtain security clearance.