335 c software engineer jobs at 168 companies in Oswego, IL

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C++ Software Engineer, Trading Platform
Chicago, Illinois, United States
$100k-$140k/yr OnsiteFull Time
Wolverine Execution Services
Wolverine Execution Services: Privately held proprietary trading firm serving global markets through market making and valuation arbitrage.
2+ YOEBachelor's degree in computer science, computer engineering, or equivalent experience; 2+ years of software development experience; C++ experience; algorithms, data structures, and concurrent programming knowledge.
C++
1mo
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Senior Software Engineer, C++ | Patching
United States or 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 or Chicago
HybridFull Time
NinjaOne
NinjaOne: Privately held NinjaOne provides endpoint management, patching, backup, and remote access software for IT teams and MSPs.
7+ YOEBachelor’s degree in a technical field and 7+ years of C++ development experience. Requires modern C++, cross-platform Windows/macOS/Linux development, Win32 API, POSIX, gRPC, Protocol Buffers, SQLite, and CMake.
C++, C++17, Windows, macOS, Linux, Win32 API, POSIX, gRPC, Protocol Buffers, SQLite, CMake, Qt, Vcpkg, Java, Kotlin, Golang, Postgres, AWS
3mo
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C++ Software Developer
Amsterdam or Chicago or London or New York City
OnsiteFull Time
Headlands Technologies
Headlands Technologies: Private quantitative trading firm developing strategies in exchange-traded financial products for global markets.
Strong C++ ability, fundamentals of software engineering, experience building scalable distributed systems, network programming, and performance optimization; computing degree preferred or extensive professional experience.
C++, Linux
2mo
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Senior Software Engineer C++
New York or Chicago
$150k-$225k/yr HybridFull Time
GTS
GTS: Private American electronic market-making firm trading equities, ETFs, fixed income, futures, and foreign exchange for financial institutions.
7+ YOEExpertise in Linux C++ low-latency systems, 7+ years software engineering, BS/MS in engineering/computing/science, Git, gdb, valgrind, Python/bash, networking knowledge.
Linux, C++, Git, gdb, valgrind, Python, bash
2w
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Principal C Engineer
Hyderabad or New York City or Chicago or London or Singapore or Tokyo or Hong Kong
HybridFull Time
Pico
Pico: Private financial-markets technology providing trading infrastructure, connectivity, market data, software, and analytics to institutions.
10+ YOEBSc/MSc in relevant engineering, 10+ years' relevant experience including 5+ in electronic trading, strong C on Linux, capital markets and FIX knowledge, high-performance and multithreaded systems, testing and Jenkins.
C, Linux, FIX, Jenkins, gdb, valgrind, Python, Java, Wireshark
2mo
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Senior Software Engineer, C++ (Algo)
Chicago, Illinois, United States
$150k-$250k/yr OnsiteFull Time
DRW
DRW: Global proprietary trading firm investing across diverse asset classes.
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.
C++, Rust, Java, Python, JavaScript, Ruby, TCP, UDP, IPV4
2w
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C# Developer Intern
Chicago, Illinois, United States
$7k/mo OnsiteInternship
SCALP Trade
SCALP Trade: Edge driven by logic, technology, and speed.
C# fundamentals, object-oriented programming, async/await, .NET, data structures, algorithms, systems concepts, Linux and Windows familiarity, communication, and collaborative problem-solving; projects or coursework accepted.
C#, .NET, Linux, Windows, Windows Forms, WPF, C++, Python, JavaScript, SQL, Git, Docker, REST, HTTP, CI/CD
2mo
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Junior C++ Developer
Chicago or London or New York
$150k-$200k/yr OnsiteFull Time
Balyasny Asset Management
Balyasny Asset Management: Global multi-strategy investment firm.
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.
C++, CI/CD
2mo
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Junior C++ Developer
New York or Chicago or London
$150k-$200k/yr OnsiteFull Time
Balyasny Asset Management
Balyasny Asset Management: Global multi-strategy investment firm.
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.
C++, CI/CD, Order Management System (OMS)
1mo
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Senior Software Engineer, C++
Amsterdam or New York City or Chicago
$185k-$225k/yr OnsiteFull Time
Flow Traders
Flow TradersEuronext Amsterdam: FLOW: Public market maker and proprietary trading firm providing liquidity across ETPs, FX, commodities and digital assets.
5+ YOE5+ years C++ development experience, strong algorithms and multithreading knowledge, interest in high-performance systems, and good communication skills.
C++, Rust, Python, TypeScript, FIX, WebSocket, HTTP, TLS
20h
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Software Engineer
Schaumburg, Illinois, United States
$57k-$85k/yr HybridFull Time
Motorola Solutions
Motorola SolutionsNYSE: MSI: Global leader in mission-critical communications and security technology.
Bachelor's or master's degree in electrical, computer, or software-related engineering or computer science; experience with C/C++, Linux or Unix, object-oriented development, debugging, Agile, Git, and Jira.
Docker, Podman, Git, Jira, C, C++, Linux, Unix, Artificial Intelligence (AI)
2mo
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C++ Software Engineer- 2 Days Onsite- Chicago- FreeWheel
Chicago, Illinois, United States
$110k-$165k/yr HybridFull Time
Comcast
ComcastNASDAQ: CMCSA: A global media and technology.
3+ YOEBachelor's or master's degree in computer science, engineering, or related field preferred; 3+ years' software engineering experience, scalable systems expertise, performance optimization, C++, and Linux experience.
C++, Java, Rust, Go, Linux
1mo
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Software Engineer (C++ or Python) – 2027 Grads
Austin or Chicago or London or New York City or Singapore
$300k/yr OnsiteFull Time
Hudson River Trading
Hudson River Trading: Private quantitative trading firm providing liquidity across global markets and directly to financial-market clients.
Full-time undergraduate or master's student in computer science or a related field, eligible for 2027 full-time roles, with C/C++ or Python experience and strong design, debugging, problem-solving, and computer science fundamentals.
C, C++, Python, UNIX, Linux
1mo
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Senior Lead Software Engineering - C++ low latency
Chicago or Plano or Jersey City
$147k-$225k/yr OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services and investment banking firm.
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.
C, C++
1mo
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Software Engineer (Entry-Level) - C++
Chicago, Illinois, United States
$145k/yr OnsiteFull Time
Akuna Capital
Akuna Capital: Proprietary trading firm providing options-market liquidity through advanced technology, strategic trading, and quantitative research.
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.
C++, Python, Shell, perf, gprof, vtune, GDB, Valgrind, AddressSanitizer
2mo
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C++ Software Engineer- 2 Days Onsite- Chicago- FreeWheel
Chicago, Illinois, United States
$110k-$165k/yr HybridFull Time
FreeWheel
FreeWheelNASDAQ: CMCSA: A global media and technology.
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.
C++, Java, Rust, Go, Linux
1mo
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Principal Software Developer - Full Stack (Unity, C#)
Austin or San Mateo or Carlsbad or Chicago or Eugene or Toronto
$114k-$180k/yr OnsiteFull Time
Zynga
Zynga: Mobile video game developer and publisher creating games for players worldwide as a Take-Two subsidiary.
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
2mo
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Engineer Embedded Software
Rolling Meadows, Illinois, United States
$88k-$131k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Global aerospace and defense technology.
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.
C#, C, Java, LabWindows CVI, Python, MATLAB, Cadence, GitHub, Oscilloscope, Signal Generator, Spectrum Analyzer, Network Analyzer
2w
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Software Developer | Core Order Management System | C++ | Experienced Hire
Chicago, Illinois, United States
OnsiteFull Time
Susquehanna International Group
Susquehanna International Group: Global quantitative trading and technology firm.
Deep modern C++ proficiency, software engineering fundamentals, and knowledge of data structures, algorithms, concurrency, and distributed systems; experience with trading or financial markets preferred.
C++, FIX protocol
2w
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Software Developer | Core Order Management System | C++ | Experienced Hire
Chicago, Illinois, United States
OnsiteFull Time
Susquehanna International Group
Susquehanna International Group: Global quantitative trading firm providing proprietary financial market liquidity.
Deep modern C++ proficiency; strong software engineering, algorithms, concurrency, distributed systems, analytical, debugging, communication, and collaboration skills. Financial markets or trading systems experience preferred.
C++, FIX protocol