405 system software engineer jobs at 217 companies in Oak Lawn, IL
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Software Developer | Core Order Management System | C++ | Experienced Hire
Chicago, Illinois, United States
OnsiteFull Time
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.
Software Developer | Core Order Management System | C++ | Experienced Hire
Chicago, Illinois, United States
OnsiteFull Time
Susquehanna International Group: Global quantitative trading firm specializing in proprietary financial markets.
Deep modern C++ proficiency, software engineering fundamentals, and knowledge of data structures, algorithms, concurrency, and distributed systems; experience with trading or financial markets preferred.
Menlo Park or New York City or Bellevue or Washington or Denver or Westlake or Chicago or Lake Mary or Clearwater or Gainesville
$166k-$195k/yrHybridFull Time
RobinhoodNASDAQ: HOOD: Provides a commission-free platform for investing and financial services.
2+ YOE2+ years of software development experience; backend expertise in Go, Python, or Java; cloud-native architecture, system design, data modeling, and software engineering fundamentals required.
JLLNYSE: JLL: Global commercial real estate and investment management services.
3+ YOEBachelor's or Master's in CS/Engineering or equivalent,3+ years software engineering experience,proficiency with LLM APIs,agent systems,RAG,production deployments,enterprise API integrations,strong communication,US work authorization.
New York City or San Francisco or Austin or Chicago
$120k-$300k/yrHybridFull Time
R1 RCM: Revenue cycle management solutions for healthcare providers.
3+ YOE3+ years engineering experience building and operating production systems; end-to-end ownership; scaling production systems; applied AI interest; strong communication and product collaboration skills.
Sidley Austin: Global law firm providing comprehensive legal and regulatory counsel.
8+ YOE8+ years software engineering experience with full-stack skills (.NET/C#, React, Next.js), Azure experience, CI/CD and system design expertise; leadership and mentoring experience.
NewmarkNASDAQ: NMRK: Commercial real estate brokerage and property management services.
12+ YOE12+ years software engineering experience; expert with JavaScript/TypeScript front-end frameworks and backend languages; strong distributed systems, microservices, cloud, database, CI/CD, and agentic AI experience.
Software Developer | Core Order Management System | C++ | Experienced Hire
Chicago, Illinois, United States
OnsiteFull Time
Susquehanna International Group: Global quantitative trading and market making firm.
Deep modern C++ proficiency, strong software fundamentals, data structures, algorithms, concurrency, distributed systems, analytical debugging, and communication skills; trading or financial markets experience preferred.
GTS: Global electronic market maker and proprietary trading firm.
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.
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.
Publicis GroupeEuronext Paris: PUB: Global advertising and digital transformation agency holding.
3+ YOE3+ years software or infrastructure engineering; production Kubernetes and AWS experience; Terraform and CI/CD proficiency; strong operational depth in observability, networking, or artifact/CI systems.
Quickset Defense Technologies: Manufacturer of heavy-duty tripods and camera positioning systems.
6+ YOEBachelor's degree in electrical or computer engineering and 6–10 years of software development experience with embedded systems, web technologies, protocols, networking, and debugging.
HTML, JavaScript, PHP, Python, C++, C#, Embedded Linux, ONVIF Protocol, MODBUS, IBM BiSync, SONY VISCA, PELCO-D, RTOS, TCP/IP, FEC, Qt framework, TI Code Composer Studio, ARM
IMC: Global trading firm providing liquidity to financial markets.
3+ YOE3+ years software engineering experience, strong Java and/or Python skills, production systems experience, interest in financial markets and risk, strong analytical and problem-solving abilities.
United States or Redmond or Mountain View or Houston or Austin or Chicago or New York City or Cambridge or Atlanta
$120k-$235k/yrRemoteFull Time
MicrosoftNASDAQ: MSFT: Develops software, services, devices, and cloud computing solutions.
4+ YOEBachelor's degree in computer science or related field and 4+ years of coding experience; expertise in software engineering, secure scalable systems, customer delivery, and AI or LLM solutions preferred.
AmpliFI Loyalty Solutions: A provider of customized card-linked loyalty platforms and related technical services.
3+ YOEMaster's in CS/SE or related with 3 years development experience; experience designing enterprise systems and platform engineering; Java, AWS (Lambda,S3,EC2,Glue,DynamoDB), MySQL/PostgreSQL/DynamoDB, Docker/Kubernetes.
New York City or San Francisco or Salt Lake City or Los Angeles or Seattle or Austin or Washington or Philadelphia or San Diego or Chicago or Atlanta or Australia or Canada or South America
$146k-$215k/yrRemoteFull Time
Flex: A financial platform allowing renters to split monthly rent payments.
6+ YOE6+ years software engineering experience, 4+ years with Java, experience with backend systems, APIs, data pipelines, AWS, and distributed teams.
San Francisco or Miami or Atlanta or Salt Lake City or Phoenix or Washington D.C. or Los Angeles or Seattle or Chicago or Boston or Austin or New York City
$153k-$205k/yrRemoteFull Time
CircleNYSE: CRCL: Digital currency issuer and blockchain financial infrastructure provider.
6+ YOE6+ years professional software development with Java and Go; bachelor’s in CS or equivalent; led small technical teams; experience with payment systems, RESTful APIs, cloud services, and SQL; strong system design, testing, and communication skills.
Java, Go, AWS, Google Cloud, Microsoft Azure, SQL, NoSQL, RESTful API