535 systems software engineer jobs at 257 companies in Ashburn, IL
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Systems Software Engineer
Chicago, Illinois, United States
$145k-$185k/yr OnsiteFull Time
3+ YOERequires 3+ years of software engineering experience, strong systems programming, Linux administration, networking, server hardware, Ansible, Git, CI/CD, Bash or scripting, and production support experience.
C++, Python, Rust, Ruby, Ansible, Linux, RHEL, DPDK, Git, Kubernetes, Flux, Helm, Bash, perf, eBPF, flamegraphs, tcpdump, CI/CD, GitOps, NUMA, TCP/IP
3mo
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Software Engineer, AI & Product Systems
Naperville, Illinois, United States
$80k-$150k/yr OnsiteFull Time
3+ YOE3+ years software engineering; Node.js/Next.js/TypeScript; PostgreSQL or Supabase; REST/OAuth2/JWT; AI/LLM integration; CI/CD; security and reliability.
Node.js, Next.js, TypeScript, PostgreSQL, Supabase, REST, OAuth2, JWT, WebSockets, GitHub Actions, Vercel, n8n, SOQL
3w
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Software Engineer, AI & Product Systems
Naperville, Illinois, United States
$80k-$150k/yr OnsiteFull Time
3+ YOERequires 3+ years shipping production software; Node.js, Next.js 14+, TypeScript, PostgreSQL or Supabase, APIs, LLM integration, real-time systems, testing, CI/CD, and security experience.
Node.js, Next.js, TypeScript, PostgreSQL, Supabase, REST, OAuth2, JWT, WebSockets, SSE, Supabase Realtime, Claude, OpenAI, GitHub Actions, Vercel, Salesforce, Gong, Google Sheets, Velocify, Twilio, Vapi, Bland, n8n, Claude Code, Cursor, jsforce, Puppeteer, React-PDF, Retell, SOQL, CORS
3mo
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Software Engineer – Trading Systems
Chicago, Illinois, United States
$100k-$140k/yr OnsiteFull Time
2+ YOEBachelor's in CS or related field; 2+ years software development; strong C++, concurrent programming; knowledge of algorithms and data structures; good communication.
C++
3d
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Systems Engineer/Principal Systems Engineer - Integration & Test
Rolling Meadows, Illinois, United States
$88k-$163k/yr OnsiteFull Time
2+ YOERequires an engineering degree, 2+ years of related experience for Systems Engineer or 5+ years for Principal level, hardware/software/firmware testing, technical presentations, US citizenship, and Secret clearance eligibility.
DOORS, MATLAB, C, C++, Java, Python, Cameo, Model Based Systems Engineering (MBSE), Verification Cross Reference Matrices (VCRMs), Electromagnetic Interference (EMI), Digital Signal Processing (DSP)
1mo
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Software Engineer | Market Data Systems
Chicago, Illinois, United States
$200k-$250k/yr OnsiteFull Time
5+ YOE5+ years building production software in performance-critical environments; strong C++ and Rust experience; real-time streaming and low-latency systems expertise; concurrency, memory, and network programming skills.
C++, Rust, TCP, UDP, multicast, Linux
2mo
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Senior Software Engineer, Agentic Systems
Chicago or United States
$169k-$208k/yr RemoteFull Time
5+ YOE5+ years building production software with strong Python; hands-on experience building LLM-powered agents, prompt/context engineering, production LLM reliability, evaluation harnesses, testing and observability.
Python, LLM, AWS Bedrock, Neo4j, NodeZero
3d
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Quantum Software Engineer - Compiler & Control Systems
Chicago, Illinois, United States
$145k-$170k/yr HybridFull Time
Bachelor’s degree in computer science, engineering, physics, or related field; strong programming skills; complex software systems experience; testing, debugging, CI/CD, communication, and collaborative problem-solving abilities.
Python, C++, Rust, CI/CD, Superstaq, Cirq, Qiskit, Stim, FastAPI, PostgreSQL, SQLAlchemy, GCP, AWS, HTML/CSS, React, PyQt
1d
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Software Engineer
Chicago, Illinois, United States
$120k-$140k/yr HybridFull Time
3+ YOERequires 3+ years of software engineering experience, strong computer science fundamentals, system design, debugging, analytical problem-solving, large-scale enterprise software, technical documentation, monitoring, and alerting experience.
2mo
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Senior Software Engineer - AI/Computer Vision (Camera Systems)
Waltham or Chicago or Boston or Vancouver or Krakow
$140k-$170k/yr HybridFull Time
4+ YOEBachelor's degree and 4+ years software engineering experience with 3+ years C++ development. Experience with camera systems, embedded Linux, model deployment on embedded platforms, Python, Git, and strong problem-solving and communication skills.
C++, Python, OpenCV, TensorFlow, PyTorch, ONNX Runtime, GitHub Actions, Azure DevOps, Git, Linux
3w
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Software Engineer, Wallet
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/yr HybridFull Time
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.
Go, Python, Java, EVM blockchains, smart contracts
1mo
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Senior Systems Engineer
Des Plaines, Illinois, United States
$100k-$150k/yr OnsiteFull Time
10+ YOEBachelor's degree in engineering with 10+ years experience, strong networking and routing knowledge, Linux and C/C++ proficiency, hardware/software troubleshooting, ability to obtain US security clearance and to travel.
Linux, C/C++, MANET, HAIPE
1mo
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Principal/Sr. Principal Systems Engineer
Rolling Meadows, Illinois, United States
$109k-$204k/yr OnsiteFull Time
5+ YOESTEM degree with 5+ years (Principal) or 8+ years (Sr Principal) experience, proficiency in systems thinking, model-based systems engineering, simulation/mission modeling, and listed software/tools; U.S. citizenship and active government clearance required.
MATLAB, C, C++, CUDA, VHDL, OpenCL, SysML, Python, Cameo, Rhapsody, AFSIM, STK, BRAWLER, ATCOM, ONESAF, DOORS, ClearCase, ClearQuest
2d
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Principal Software Engineer
United States or Chicago or Hawaii
$153k-$205k/yr RemoteFull Time
7+ YOEBachelor's degree in engineering, computer science, or related field and 7 years of software engineering experience, including .NET, C# or Python, databases, distributed systems, Linux, and CI/CD in cloud environments.
Microsoft .NET, C#, Python, Linux, CI/CD, AKS
3w
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Senior Software Engineer
Chicago or San Francisco
$160k-$180k/yr OnsiteFull Time
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.
LLM APIs, CI/CD
1w
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Senior Software Engineer
Dallas or Chicago
HybridFull Time
12+ YOERequires 12+ years of software engineering experience, full-stack architecture expertise, cloud-native distributed systems knowledge, agentic AI experience, and leadership across multiple engineering teams. Bachelor's degree preferred.
JavaScript, TypeScript, React, Next.js, C#, Node.js, Java, REST, GraphQL, Azure, AWS, GCP, LangChain, AutoGen, Semantic Kernel, MCP, SQL, CI/CD, Docker, Kubernetes, Kafka, Event Hubs, Kinesis
2d
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Staff Software Engineer
Chicago or Jersey City or Mountain View or Fairfield or Cheshire or Jacksonville or Tallahassee or Tampa or Marlton or Cincinnati or Houston or Sheboygan
RemoteFull Time
5+ YOEBachelor's degree or equivalent practical experience, 5+ years of software engineering experience, modern programming language proficiency, API or distributed systems experience, and technical leadership skills.
Java, TypeScript, Go, Python, C#, AWS, Docker, Kubernetes, Spring Boot, Temporal, Claude Code, Cursor, GitHub Copilot
2mo
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Software Engineer
New York City or San Francisco or Austin or Chicago
$120k-$300k/yr HybridFull Time
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.
3w
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Lead Software Engineer
Chicago, Illinois, United States
$123k-$169k/yr HybridFull Time
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.
.NET (C#), React, Next.js, Azure, Azure App Service, Azure Container Apps, Azure Kubernetes Service, Azure SQL, Azure Service Bus, Azure OpenAI Service, SQL Server, PostgreSQL, Cosmos DB, REST, GraphQL, Azure DevOps, GitHub Actions, Git, Docker, Kubernetes, Azure Container Apps/AKS, LangGraph, Semantic Kernel, Claude SDK, Temporal, n8n, Power Automate, Azure OpenAI, Anthropic Claude
1w
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Senior Software Engineer
Oak Brook or Sioux Falls
$107k-$164k/yr HybridFull Time
5+ YOEBachelor's degree or equivalent experience; 5+ years of software engineering and Scala experience, with cloud architecture, distributed systems, streaming, microservices, CI/CD, IaC, and strong communication skills.
Scala, Apache Spark, Apache Flink, Docker, Kubernetes, Helm, Akka, Pekko, Terraform, Git, Maven, Gradle, ScalaTest, JUnit, Mockito, Datadog, Azure Monitor, Application Insights, ELK, OpenTelemetry, RESTful APIs, OAuth2, JWT, OpenAPI, Swagger, Postman, Azure, AWS, Java, Python
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