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6,967 senior developer jobs at 2,156 companies in Illinois

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Application Developer Senior
Germantown or Chicago or Nashville or Washington
$91k-$185k/yr HybridFull Time
Accenture Federal Services
Accenture Federal ServicesNYSE: ACN: Provides technology and consulting services to U.S. federal agencies.
10+ YOESenior applications developer with Atlassian/Jira, Java/JavaScript, Azure, SQL; US citizen; willing to travel up to 25%; bachelor’s in CS or equivalent experience.
Jira, Confluence, Java, JavaScript, Azure, .NET, WebSphere, SQL, Power Platform, ServiceNow, IIS, Azure DevOps
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3mo
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Senior Software Engineer
Westchester, Illinois, United States
$99k-$124k/yr HybridFull Time
Ritchie Bros.
Ritchie Bros.NYSE: RBA: Conducts global auctions for heavy equipment and industrial assets.
7+ YOESenior Java/Spring server-side developer with 7-10 years exp; strong REST/SOAP, microservices, DBs, CI/CD, AWS, containers.
Java, Spring Framework, Spring Boot, REST, SOAP, Microservices, Spring Cloud, API development, SQL, MySQL, Oracle, PostgreSQL, Tomcat, JUnit, Mockito, Agile Scrum, TDD, Pair Programming, CI/CD, Git, Bitbucket, AWS, Docker, Kubernetes, HTML5, JavaScript, TypeScript, AngularJS
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2mo
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Senior Software Engineer- Machine Control Systems
Hazel Crest, Illinois, United States
$110k-$125k/yr OnsiteFull Time
The Lanco Group
The Lanco Group: Manufactures specialized heavy lifting and material handling equipment.
10+ YOESenior software development engineer with 10+ years in industrial automation, real-time data processing, full-stack development, machine control, and cross-disciplinary collaboration.
C/C++, Python, MATLAB/Simulink, EtherCAT, CAN bus, Modbus, Ethernet/IP
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3mo
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Senior Application Developer
Deerfield, Illinois, United States
OnsiteFull Time
PremiStar
PremiStar: Provider of commercial HVAC, plumbing, and building automation services.
5+ YOE5+ years as a Dynamics 365 Developer; experience leading at least one full implementation; Bachelor's preferred; Dynamics 365 and Power Platform expertise.
C#, DOTNET, JavaScript, TypeScript, Microsoft Dynamics 365, Power Platform, Azure
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2mo
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Senior Salesforce Developer
Chicago, Illinois, United States
OnsiteFull Time
SMBHD
SMBHD: Provides customized CRM consulting and implementation services for businesses.
4+ YOE4+ years enterprise Salesforce development; full-stack with front-end interest; Git; SOAP/REST; XML/JSON; relational DB; ETL tools
Salesforce, Git, SOAP/REST, XML/JSON, ETL tools, Relational databases
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1mo
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Senior Autonomy Engineer
Mossville or Pittsburgh
$113k-$183k/yr OnsiteFull Time
Caterpillar
CaterpillarNYSE: CAT: Manufactures construction equipment, mining machinery, and industrial engines.
4+ YOESenior Autonomy Engineer with 4+ years robotics experience; localization/filters expertise; proficient in C++, Python; ROS knowledge; bachelor’s, master’s, or PhD in robotics, electrical/computer engineering, or computer science; onsite five days a week; relocation and visa sponsorship available.
C++, Python, ROS, Kalman filtering, Inertial Measurement technology, GNSS
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2mo
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Senior Software Engineer
Chicago, Illinois, United States
$123k-$150k/yr OnsiteFull Time
JLL
JLLNYSE: JLL: Global commercial real estate and investment management services.
5+ YOE5–8 years software development with leadership; bachelor’s in CS, engineering, or related field; strong backend and frontend experience.
C#, Node.js, Python, Java, Angular, React, Next.js, Vue.js, REST, Microservices, SQL Server, PostgreSQL, MongoDB, Cosmos DB, Databricks, Python, PySpark, Spark SQL, Power BI, DAX, Power Query, Git, CI/CD, Azure, Docker, Kubernetes, Azure AI, AI/ML, Event-driven systems
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Senior Software Engineer
Chicago, Illinois, United States
$153k/yr RemoteFull Time
Morningstar
MorningstarNASDAQ: MORN: Provides independent investment research, financial data, and management services.
5+ YOERequires advanced Python development, relational/vector databases, cloud services, and AI/ML concepts with REST APIs and CI/CD.
Python, FastAPI, Flask, REST API, PostgreSQL, SQLAlchemy, Weaviate, Pinecone, Pandas, Plotly, Matplotlib, AWS, S3, RDS, API Gateway, Lambda, Redis, SQS, Celery, Git, CI/CD, GraphQL, OpenAI, Anthropic, MistralAI, UML
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Senior Security Engineer
Austin or Chicago or Dallas or Denver or Los Angeles or San Diego or San Francisco
$131k-$169k/yr HybridFull Time
Karbon
Karbon: Practice management software for accounting firms.
4+ YOESenior Security Engineer with 4+ years in security or development; strong communication; cloud and AI experience; hands-on with security tooling and threat modelling.
DotnetCSharp, JavaScript, React, EmberJS, Python, Azure, AWS, GCP, PowerShell, Bash, GitHub Copilot, Burp Suite
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Senior Software Engineer - DeFi
Chicago, Illinois, United States
$130k-$225k/yr OnsiteFull Time
DRW
DRW: Technology-driven principal trading firm operating in global financial markets
Strong software engineering fundamentals with DeFi/Blockchain experience, server-side development, JVM and Node.js/TypeScript, microservices, and distributed systems knowledge.
Kubernetes, Docker, ArgoCD, PostgreSQL, Oracle, SQS, RabbitMQ, Linux, Ansible, Nginx, Git, Node.js, TypeScript, Java, EVM, ethers.js, web3.js
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3mo
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Senior Software Engineer - USA
United States or Mountain View or New York City or Dallas or Chicago or Miami
$109k-$171k/yr HybridFull Time
Cognify Analytics
Cognify Analytics: A technology focused on delivering scalable software solutions and AI-enabled technology.
6+ YOE6+ years of full software development lifecycle experience; proficiency in multiple languages; cloud platforms; distributed systems; leadership and collaboration; AI/ML integration.
JavaScript, TypeScript, Python, Java, Rust, Go, Kotlin, C++, Kubernetes, Docker, Terraform, Pulumi, AWS, Azure, GCP, CI/CD, Kafka, Flink, Kinesis
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2mo
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Senior Business Developer - Trucking Division
United States or Georgia or Minnesota or Michigan or Wisconsin or Iowa or Indiana or Virginia or Illinois or Tennessee or Florida or South Carolina or Pennsylvania or North Carolina
$100k-$140k/yr RemoteFull Time
Great American Insurance Group
Great American Insurance GroupNYSE: AFG: Provides specialized property and casualty insurance products for businesses.
5+ YOEBachelor’s degree preferred; minimum 5 years related underwriting or business development experience; trucking/commercial auto experience preferred; strong communication and travel ability.
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2mo
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Senior Software Engineer- Machine Control Systems
Hazel Crest, Illinois, United States
$110k-$125k/yr OnsiteFull Time
Lanco
Lanco: Manufactures and services heavy lifting and material handling equipment.
10+ YOESenior software engineer with full-stack focus, real-time IoT, hardware integration, and heavy machinery experience.
C/C++, Python, MATLAB/Simulink, EtherCAT, CAN bus, Modbus, Ethernet/IP
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Senior Software Engineer, Zaidyn
Chicago or New York or Princeton
HybridFull Time
ZS
ZS: Global management consulting and technology firm for healthcare and life sciences.
3+ YOEBachelor’s or Master’s in CS/EE/math or related; 3-5 years software product development; full-stack SaaS experience; strong APIs, SOA/REST; English fluency.
Java, REST, SOA, Jenkins, Hibernate, Maven, TeamCity, APIs, OOP, DI/IoC, AWS
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2mo
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Senior Applications Developer
Itasca, Illinois, United States
$131k-$145k/yr HybridFull Time
Fellowes Brands
Fellowes Brands: Designs and manufactures business machines and workplace ergonomic products.
4+ YOEBachelor’s or foreign degree equivalent in Computer Science or Information Technology and 4 years of Oracle ERP experience; PL/SQL, Oracle EBS/ERP Cloud, BI analytics, OIC integrations; in-office 4 days/week with some remote work; travel up to 5%.
PL/SQL, Oracle, XML Publisher, Oracle Forms, Oracle Reports, Shell Scripting, Oracle EBS, Oracle ERP Cloud, BI Publisher, OTBI, Oracle Integration Cloud, Visual Builder, Process Builder, FBDI, REST, SOAP
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3mo
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Senior Application Developer
Deerfield, Illinois, United States
OnsiteFull Time
PremiStar
PremiStar: Provides commercial HVAC, plumbing, and building automation solutions.
5+ YOE5+ years Dynamics 365 development, configuration, and integration; Power Platform experience; Bachelor's in CS/IS preferred.
C#, .NET, JavaScript, TypeScript, Power Platform, Dynamics 365, Azure
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3mo
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Senior Scala Engineer (Hybrid)
Chicago, Illinois, United States
$130k-$170k/yr HybridFull Time
Rewards Network
Rewards Network: Rewards programs and financing for the restaurant industry.
4+ YOE4+ years backend software development; 7+ preferred; strong Scala and JVM languages; REST microservices; relational databases; Kafka; Docker and Kubernetes; secure coding; full SDLC with CI/CD; cross-functional collaboration; Lightbend/Typelevel familiarity preferred.
Scala, JVM languages, REST, Microservices, Kafka, Docker, Kubernetes, Lightbend, Typelevel, CI/CD, Security best practices
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Senior iOS Software Engineer
Madison or Chicago or United States
$190k-$224k/yr RemoteFull Time
Fetch
Fetch: Mobile platform rewarding consumers for scanning retail and dining receipts.
5+ YOESenior iOS engineer with 5+ years of shipping iOS apps, strong Swift/SwiftUI, async/await, Combine, MVVM, dependency injection, modular architecture, debugging, API integration, and cross-functional teamwork.
Swift, SwiftUI, Combine, async/await, Dependency Injection, MVVM, Modular Architecture
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3w
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Senior Developer
Chicago, Illinois, United States
$175k-$225k/yr HybridFull Time
Optimal Market Technologies
Optimal Market Technologies: Operates a broker-dealer platform for wholesale options execution.
5+ YOE5+ years software development experience; strong C++ and Python; Linux apps; experience in latency-sensitive or trading systems; fluent use of AI-assisted development tools (Claude Code); strong communication skills.
Claude Code, C++, Python, Linux, FIX Protocol, SQL, PostgreSQL, GoogleTest, AERON, perf, gprof, ASan, UBSan, gcov, lcov, Rust
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Senior Software Engineer - Digital and Web
Naperville, Illinois, United States
$106k-$159k/yr HybridFull Time
Oncourse Home Solutions
Oncourse Home Solutions: Provides residential service line protection and home warranty solutions.
6+ YOESenior software engineer with 6+ years of full-stack experience; Next.js/React, GraphQL, Node.js, MongoDB; Docker/Kubernetes; GA/SEO; e-commerce/subscription experience preferred.
React, Next.js, GraphQL, Node.js, MongoDB, Docker, Kubernetes, REST, WebSockets, XML, JSON, YAML, Tailwind, Bootstrap, SCSS, Google Analytics, Google Webmaster Tools, SEO
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