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118 sr principal software engineer jobs at 66 companies in Illinois

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Principal/Sr. Principal Software Engineer
Rolling Meadows, Illinois, United States
$109k-$163k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
5+ YOEBachelor's in CS/CE or equivalent experience, 5+ years engineering experience (Principal) or 8+ years (Sr Principal). Proficiency in C++, embedded Linux/VxWorks, scripting (Python/Bash), version control (Git/GitLab/GitHub/Bitbucket/ClearCase), Agile/Waterfall; U.S. citizenship and active Secret clearance required.
C++, C++11, Python, Bash, Batch, Linux, VxWorks, Waterfall Methodology, Agile, Git, GitLab, GitHub, Bitbucket, ClearCase, Rally, Jira, DevSecOps, Model-based Engineering
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2mo
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Principal/Sr. Principal Software Engineer
Rolling Meadows, Illinois, United States
$109k-$163k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
5+ YOEUS citizen with active Secret clearance and SAP access; Bachelor’s in CS/CE (or equivalent experience). 5+ years engineering experience (Principal) or 8+ years (Sr Principal). Must have C++, embedded Linux or VxWorks, scripting (Python/Bash), version control (Git/GitLab/GitHub/ClearCase), and Agile/Waterfall experience.
C++, C++11, Python, Bash, Batch, Linux, VxWorks, Git, GitLab, GitHub, Bitbucket, ClearCase, Rally, Jira, Model-based Engineering, DevSecOps, Agile, Waterfall Methodology
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Principal Software Engineer
Rothschild or Alabama or Arkansas or Arizona or Colorado or Florida or Georgia or Illinois or Indiana or Kentucky or Louisiana or Maryland or Michigan or Minnesota or Missouri or Mississippi or North Carolina or New Jersey or Nevada or New York or Ohio or Oklahoma or Oregon or South Carolina or Tennessee or Texas or Utah or Virginia or Washington or Wisconsin
$135k-$160k/yr RemoteFull Time
Foundation Finance
Foundation Finance: Point-of-sale consumer financing for home improvement projects.
7+ YOEBachelor's in CS/Engineering or related,7+ years development experience,technical leadership and architecture experience,mentoring skills,and strong presentation and stakeholder communication.
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1w
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Principal Engineer
Chicago, Illinois, United States
$245k-$285k/yr HybridFull Time
Vouch
Vouch: Vouch provides insurance brokerage and risk management for startups.
Principal-level experience spanning software architecture, AI engineering, and DevOps, including domain-driven design, agent systems, infrastructure-as-code, GitOps, CI/CD, and production systems in high-growth environments.
Rust, TypeScript, Python, AWS, Terraform, GitOps, CI/CD, LLM, MCP
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1d
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Principal Software Development Engineer
Texas or Scottsdale or Chicago or Dallas or California
$144k-$288k/yr RemoteFull Time
CVS Health
CVS HealthNYSE: CVS: Provides retail pharmacy, health insurance, and pharmacy benefit management services.
12+ YOE12+ years of software engineering experience, 5+ years in senior, principal, or architect roles, full-stack expertise, distributed systems, AI/GenAI, cloud-native applications, and a bachelor's degree required.
Java, Spring Boot, Go, Golang, Node.js, Python, React, Angular, TypeScript, REST, GraphQL, Apollo Federation, gRPC, Kafka, AWS, Azure, GCP, Kubernetes, Docker, Terraform, Datadog, Prometheus, Grafana, SQL, Redis
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Principal Engineer
Alabama or Arizona or Arkansas or California or Colorado or Connecticut or Florida or Georgia or Hawaii or Idaho or Illinois or Indiana or Iowa or Kansas or Kentucky or Maryland or Massachusetts or Michigan or Minnesota or Missouri or Nevada or New Hampshire or New Jersey or New Mexico or New York or North Carolina or Ohio or Oklahoma or Oregon or Pennsylvania or Rhode Island or South Carolina or Tennessee or Texas or Vermont or Virginia or Washington or Wisconsin
$210k-$262k/yr RemoteFull Time
Fuze Health
Fuze Health: Integrated digital health, home diagnostics, and virtual pharmacy platform.
10+ YOEBachelor's in CS or related; 10+ years software engineering experience with 3+ years at staff/principal level; deep expertise in AWS, PostgreSQL, Ruby on Rails, Python, TypeScript/JavaScript; experience building scalable, high-throughput systems; strong communication; U.S. work authorization required.
AWS, PostgreSQL, Ruby on Rails, Python, TypeScript, JavaScript, Slack, GSuite, Jira, HL7, FHIR, NCPDP, EHR
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3w
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Principal Software Engineer
Downers Grove or Willingboro
$140k-$180k/yr OnsiteFull Time
Radwell International
Radwell International: A that supplies and distributes industrial and automation equipment to businesses.
15+ YOE15+ years software engineering with enterprise architecture, cloud (Azure) modernization, microservices, eCommerce, AI/LLM production experience, and strong people mentoring and technical leadership.
React.js, Next.js, TypeScript, C#, .NET Core, Java, Python, Go, Kafka, Azure Service Bus, Event Hub, Cloudflare, Akamai, Azure Front Door, SQL Server, PostgreSQL, Redis, Cosmos DB, MongoDB, AKS, Azure App Service, Azure Functions, Azure SQL, Key Vault, Azure AD/Entra ID, Azure Monitor, Terraform, Bicep, Azure DevOps, GitHub Actions, Helm, Open Telemetry, Application Insights, Jaeger, Grafana, Prometheus, k6, JMeter, Azure Load Testing, Pinecone, Weaviate, pgvector, OpenAI, Anthropic, Gemini, LangChain, LangGraph, CrewAI, Playwright, Cypress, Pact, OAuth 2.0, OpenID Connect, Azure Data Factory, Azure Databricks
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4w
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Principal Engineer, Software Engineering
Rockford, Illinois, United States
$135k-$205k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
8+ YOEBachelor's in CS/EE/EElec and 8+ years (or Master's and 5+ years); 5+ years embedded C; 3+ years DO-178C; software for generator/bus power control; authorized to work in U.S. without sponsorship.
embedded C, DO-178C
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2mo
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Principal Software Engineer
Toronto or California or Colorado or Illinois or New York or Washington or New York City
$184k-$276k/yr RemoteFull Time
Okta
OktaNASDAQ: OKTA: Provide secure identity management and authentication for enterprises.
8+ YOE8+ years software engineering experience (3+ years senior/staff leadership), proven large-scale distributed systems design, microservices/event-driven expertise, proficiency in Java/Kotlin/Go, cloud infrastructure experience preferred, BS in CS or equivalent.
Java, Kotlin, Go, AWS, GCP, Azure
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1mo
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Principal Software Engineer
Chicago, Illinois, United States
$118k-$123k/yr HybridFull Time
Morningstar
MorningstarNASDAQ: MORN: Provides independent investment research, data, and analytics.
8+ YOE3+ MgmtBachelor's (or Master's) in CS/CE/IT plus 6–8+ years software engineering; 5+ years designing cloud-native AI solutions with AWS/Azure/OpenAI; 5+ years with Python and Java; 3+ years leading teams; CI/CD, Docker, Kubernetes experience.
OpenAI, Azure, AWS, Python, Java, Docker, Kubernetes, AWS Fargate, SonarQube
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1w
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Senior Principal Software Engineer
United States or Phoenix or Dallas or Charlotte or California or Connecticut or New York or Colorado or Illinois or Minnesota or Washington or Nevada or Maryland or New Jersey or Hawaii or District of Columbia or North Dakota or Mississippi or Rhode Island or Vermont or Wyoming
$150k-$226k/yr RemoteFull Time
Shutterfly
Shutterfly: Manufacturer and retailer of personalized photo products and gifts.
12+ YOEBachelor's in engineering or computer science and 12+ years of software engineering experience, distributed systems expertise, large-scale architecture, cloud operations, coding, and technical strategy leadership.
LLMs, vector databases, orchestration frameworks, A/B testing
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1mo
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Principal Software Engineer
Charlotte or Chicago or Columbus or Hartford
$168k-$253k/yr HybridFull Time
The Hartford
The HartfordNYSE: HIG: Provides property and casualty insurance and financial products.
12+ YOERequires 12+ years in enterprise application development, a computer science or engineering bachelor's degree, and expertise in Java, Spring Boot, Angular/TypeScript, SQL, APIs, cloud platforms, and distributed systems.
Java, Spring Boot, Angular, TypeScript, SQL, AWS, Application Insights, Splunk, APIs, microservices, CI/CD, DevOps, DevSecOps, Identity and Access Management, AI frameworks
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2mo
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Principal Software Engineer - AWS
Chicago or Scottsdale or San Francisco or New York City or Phoenix
$173k-$276k/yr HybridFull Time
Early Warning Services
Early Warning Services: Operates payment and risk solutions for the financial industry.
15+ YOE15+ years software engineering experience with 8+ years in FinTech; hands-on full‑stack design and architecture, cloud/containerization, CI/CD, test automation, Java/J2EE/Spring, messaging, Oracle PL/SQL, Git, and strong communication.
Java, J2EE, JUnit, Tomcat, Spring Boot, Spring Core, Kafka, Tibco EMS, JMS, Oracle PL/SQL, JavaScript, jQuery, AngularJS, Git, Chef, Maven, Jenkins, AWS, Google Cloud, Microsoft Azure, SVN, Jira, Bugzilla, Confluence, Splunk, Altiris, Zabbix, Terraform, AppDynamics, C#, Ruby, Python, PHP, Kubernetes
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1mo
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Principal Software Engineer
Hartford or Charlotte or Columbus or Chicago
$168k-$253k/yr HybridFull Time
The Hartford
The HartfordNYSE: HIG: Provides business and personal insurance, group benefits, and investments.
12+ YOE12+ years enterprise application development experience, bachelor’s degree in CS/Engineering required, hands-on with Java, Spring Boot, Angular/TypeScript, SQL, cloud (AWS), APIs/microservices, observability tools; strong communication and AI-first experience.
Java, Spring Boot, Angular, TypeScript, SQL, AWS, Application Insights, Splunk, APIs, microservices, event-driven architectures, Identity and Access Management, AI frameworks, CI/CD, DevSecOps
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3mo
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Principal Engineer Software - Storage (Chronosphere)
Burbank or Denver or Chicago or Austin or Jacksonville or Hartford or Bridgeport or Seattle or Boston or New York City
$147k-$238k/yr RemoteAll Commitments Available
Palo Alto Networks
Palo Alto NetworksNASDAQ: PANW: Provides enterprise-grade network, cloud, and endpoint security software.
Design and build scalable backend services for high-volume telemetry data; strong backend skills; cloud infra experience; API design; mentorship.
Go, Java, Python, Rust, AWS, GCP, Azure, REST, gRPC, GraphQL
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Principal Software Engineer – Data and Billing QA
Overland Park or New York or Chicago
$111k-$143k/yr OnsiteFull Time
Cboe
CboeBATS: CBOE: Operates global market infrastructure and provides tradable financial products.
Principal-level engineering expertise with AI/agentic tooling, strong Python/Java/C++ skills, Linux, Kafka/Avro/Kudu/Snowflake, CI/CD (Jenkins), SQL and Git; bachelor's degree or equivalent experience.
Claude Code, OpenAI Codex, LangChain, AutoGen, Python, Java, C++, Linux, Kafka, Avro, Kudu, Snowflake, PostgreSQL, MySQL, Oracle, SQL, Jira, Confluence, Git, Jenkins
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2w
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Principal Software Engineer
Rosemont, Illinois, United States
$200k/yr HybridFull Time
Wintrust Financial Corporation
Wintrust Financial CorporationNASDAQ: WTFC: Provides community banking, commercial finance, and wealth management services.
5+ YOEBachelor's in CS or related plus 5 years (or Master's plus 3),3+ years Salesforce and Lightning Web Components, Apex, Git, Visual Studio Code, HTML/CSS/JavaScript, Agile/DevOps experience, strong communication and design skills.
Salesforce CRM, Lightning Web Components, APEX, Git, Visual Studio Code, HTML, CSS, JavaScript, Agile
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Principal Software Engineer
Chicago, Illinois, United States
$118k-$123k/yr HybridFull Time
Morningstar
MorningstarNASDAQ: MORN: Provides financial data, investment research, and asset management services.
6+ YOE3+ MgmtBachelor's in CS/CE/IT with 8+ years (or Master's with 6+ years); 5+ years designing cloud-native AI solutions; 3+ years leadership; experience with AWS, Azure, OpenAI, Python, Java, Docker, Kubernetes; strong communication and debugging skills.
OpenAI, Azure, AWS, Docker, Kubernetes, AWS Fargate, SonarQube, Python, Java
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Principal Software Engineer
Austin or Toronto or Alabama or California or Florida or Georgia or Illinois or Indiana or Kansas or Kentucky or Maryland or Michigan or Missouri or North Carolina or Ohio or Oregon or Rhode Island or Tennessee or Texas or Virginia
RemoteFull Time
Skimmer
Skimmer: Providing business management software for pool service professionals.
Technical leader with hands-on experience building and replatforming SaaS products, team leadership, proficiency with NodeJS, C#, PostgreSQL and Microsoft SQL, and experience using AI tools (Claude preferred).
Claude, NodeJS, C#, PostgreSQL, Microsoft SQL
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Principal Engineer, Customer Web and Mobile Experience
Chicago, Illinois, United States
HybridFull Time
Independence Pet Group
Independence Pet Group: Integrated platform providing pet insurance and health services.
15+ YOEBachelor's or Master's (or equivalent experience), 15+ years software engineering with 5+ years at Staff/Principal level; expert JavaScript/TypeScript, React/React Native, Next.js; experience with .NET (C#), CI/CD, auth standards, and technical leadership.
React, React Native, React Native Web, JavaScript, TypeScript, Git, GitHub, Node.js, Next.js, VS Code, GitHub Codespaces, GitHub Copilot Enterprise, Expo CLI, Expo SDK, Microsoft Azure, Microsoft Azure CLI, Microsoft Dynamics 365, .NET (C#), Postman, React DevTools, BrowserStack, Tailwind, NativeWind, shadcn/ui-style, Contentful, Sitecore, Adobe Experience Manager, GraphQL, REST, OIDC, OAuth2, SSO, MFA, WCAG 2.1, OWASP, SOC 2, PCI, EIS Suite
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