1,298 sr software engineer jobs at 440 companies in Crystal Lake, IL
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Sr. Software Engineer
Chicago, Illinois, United States
$119k-$148k/yr RemoteFull Time
5+ YOE5+ years backend development; API-based services; Node.js/NestJS; React/TypeScript; PostgreSQL/MySQL; Redis; Kafka; AWS; Docker/Kubernetes; CI/CD; testing; observability; on-call readiness; AI tooling.
Node.js, NestJS, React, TypeScript, REST APIs, PostgreSQL, MySQL, Redis, Kafka, Jest, phpunit, Cypress, Playwright, AWS, Docker, Kubernetes, AI tools
4d
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Sr Software Engineer
Naperville, Illinois, United States
$96k-$130k/yr OnsiteFull Time
5+ YOE5+ years in software development; expertise in C#, Python, Angular, SQL, and cloud platforms; architecture, platform engineering, cloud-native solutions, version control, and CI/CD experience.
C#, Python, Angular, SQL, AWS, Azure, GCP, CI/CD
1mo
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Sr. Software Developer
Pleasant Prairie, Wisconsin, United States
$143k/yr OnsiteFull Time
5+ YOEBachelor's in Computer Engineering or related plus 5+ years progressive software development experience; experience with databases, web applications, software security, version control, scalable system design, SQL/NoSQL, Linux/Windows/Mobile/Web platforms, CI/CD, containerization, and cloud services.
Database software, SQL, NoSQL, Version Control Software, Linux, Windows, CI/CD, containerization, cloud services
3mo
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Sr. Data & Software Engineer
Minneapolis or Chicago or New York
$90k-$132k/yr HybridFull Time
5+ YOE5+ years in data and software engineering; strong SQL, Python, ETL pipelines; cloud experience; able to mentor and work with business users.
Python, SQL, ETL, Cloud platforms, GCP, AWS, AI/ML APIs, Vector databases, BigQuery, Databricks, OpenAI, HuggingFace, LangChain
1mo
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Sr. Software Developer
Pleasant Prairie, Wisconsin, United States
$143k/yr OnsiteFull Time
5+ YOEBachelor’s degree in computer engineering or related field and 5 progressive years of software development experience, including databases, web applications, project leadership, security, version control, scalable systems, and CI/CD.
Database software, Web applications, Version Control Software, Data Structures and Algorithms, SQL, NoSQL, Linux, Windows, CI/CD, Containerization, Cloud services
1mo
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Principal/Sr. Principal Software Engineer
Rolling Meadows, Illinois, United States
$109k-$163k/yr OnsiteFull Time
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
3d
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Sr Software Engineer
Naperville, Illinois, United States
$96k-$130k/yr OnsiteFull Time
5+ YOERequires 5+ years in software development, expertise in C#, Python, Angular, SQL, and AWS, Azure, or GCP, plus architecture, cloud-native, system design, testing, and debugging experience.
C#, Python, Angular, SQL, AWS, Azure, GCP, APIs, CI/CD, version control systems
6d
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Sr. Software Engineer, Data Products
Chicago, Illinois, United States
$105k-$175k/yr HybridFull Time
5+ YOEMinimum 5 years in data engineering or software development; production software, backend services, APIs, databases, testing, cloud infrastructure, AI-assisted engineering, and on-call experience required.
BigQuery, Airflow, SQL, CI/CD
2mo
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Sr. Software Engineer
Oak Brook, Illinois, United States
OnsiteFull Time
5+ YOEBS in CS or related field or equivalent; 5+ yrs distributed multi-tier software development; strong comms; lead experience; proficient in C#/NET, HTML/JS; SQL Server; API development; Agile; OOP/SOLID.
C#/.NET, HTML, JavaScript, jQuery, Angular 2+, Microsoft SQL Server, Entity Framework, API development, Git, TFVC, Visual Studio, Azure, AWS, Azure DevOps, N Telerik Kendo UI, NativeScript, Xamarin, Windows UWP, OOP, SOLID
2w
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Sr. Software Engineer - PySpark
Scottsdale or San Francisco or Chicago or New York City
$118k-$152k/yr HybridFull Time
5+ YOEBachelor's-level education typical; minimum 5 years software engineering experience; strong with Git, Spring/Spring Boot, SQL, REST, Docker/Kubernetes, Kafka, automated testing and DevOps practices.
Git, Git flow, Spring, Spring Boot, SQL, Confluence, CI/CD, Docker, Kubernetes, Kafka, Hadoop, Hive, XML, JSON, YAML, Redis, HBASE, AeroSpike, REST
1mo
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Sr. Software Engineer
Chicago, Illinois, United States
$130k-$140k/yr RemoteFull Time
3+ YOEMaster's or PhD in computer science/AI/ML,3-5 years deep learning or computer vision experience,strong Python,simulator/game-engine/robotics simulation or geospatial experience,ability to operate independently.
Python, Unreal Engine
4d
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Sr. Software Engineer Front End
Oak Brook, Illinois, United States
RemoteFull Time
Develops software using Agile methodologies, designs moderately complex solutions, collaborates across UI/UX and engineering teams, leads offshore teams, and mentors junior engineers.
Agile, Scrum, DevOps, firmware, ISO 27001
2w
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ATM Sr Lead Software Engineer
Westerville or Chicago
$147k-$225k/yr OnsiteFull Time
10+ YOE5+ years software engineering, 10+ years ATM software experience preferred; expertise with Diebold SmartClient/JDevice/XFS, microservices, cloud (AWS,Kubernetes), and enterprise AI-assisted development tools.
Diebold SmartClient, JDevice, XFS, AWS, Kubernetes
4d
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Sr. Software Engineer Front End
Oak Brook, Illinois, United States
HybridFull Time
Develop software with Agile methods, design and maintain frontend systems, collaborate across technical teams, lead offshore teams, and mentor junior engineers.
Agile, Scrum, DevOps, ISO 27001
2mo
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Sr. Software Engineer
Wayne or Naperville
$120k-$135k/yr HybridFull Time
5+ YOE5–7 years backend engineering or intelligent systems with production impact; strong Python, CI/CD, and system design; experience with ML model APIs and cloud inference; familiarity with vector databases and retrieval systems.
Python, CI/CD, AWS Bedrock, Azure OpenAI, Google Vertex AI, PyTorch, Hugging Face Transformers, vLLM, FAISS, Pinecone, OpenSearch/KNN, LangChain, LlamaIndex, MLflow, Weights & Biases, Prometheus
1mo
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Sr. Software Engineer (Remote)
Oak Brook or Alabama or Arizona or Florida or Georgia or Iowa or Illinois or Indiana or Michigan or Minnesota or Missouri or North Carolina or Nebraska or Pennsylvania or South Carolina or Tennessee or Texas or Utah or Virginia or West Virginia
$107k-$137k/yr RemoteFull Time
5+ YOE5+ years software product development experience; expertise in .NET (C#), .NET Core, MS SQL/T-SQL; cloud, container, and Kubernetes experience; Agile SDLC, automated testing, security and compliance knowledge; Bachelor’s preferred.
.NET, C#, VB, .NET 4.8, .NET Core, C# 10, MS SQL Server T-SQL, SSIS, PowerShell, ActiveBatch, Azure DevOps, SonarQube, OCI, Docker, Kubernetes, Azure Container instances, App Service, OpenShift, GIT, REST, SOAP, Visual Studio Code
3mo
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Sr. Lead Software Engineer, Full Stack
Chicago or McLean
$209k-$262k/yr OnsiteFull Time
6+ YOE1+ MgmtBachelor's degree, 6+ years of software engineering experience, 1+ year of cloud computing experience, and programming experience with JavaScript, Java, TypeScript, SQL, Python, or Go.
JavaScript, Java, HTML/CSS, TypeScript, SQL, Python, Go, Docker, Kubernetes, Amazon Web Services (AWS), Microsoft Azure, Google Cloud, Open Source RDBMS, NoSQL
1d
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Sr Engineer, Software
Chicago or Downers Grove
$115k-$125k/yr HybridFull Time
3+ YOEBachelor’s degree and 3+ years of full-stack development and cloud engineering experience; proficiency in C#, .NET Core, Angular, TypeScript, AWS, Azure, SQL, NoSQL, Git, and CI/CD.
AWS, Microsoft Azure, C#, .NET Core, Angular, TypeScript, HTML5, CSS3, SQL, PostgreSQL, SQL Server, Git, AWS CodePipeline, Azure DevOps, MikroTik RouterOS
4w
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Sr. Software Engineer
Chicago, Illinois, United States
$130k-$140k/yr OnsiteFull Time
3+ YOE3+ years experience in deep learning or ML platforms preferred; strong backend and systems engineering, Python and cloud experience; Master's or PhD in CS/AI/ML; strong communication and critical thinking.
Python, AWS
4w
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Sr. Software Engineer I, Evaluation Services
Chicago or California or Colorado or Florida or Georgia or Illinois or Indiana or Minnesota or Missouri or Montana or New Jersey or New York or North Carolina or Ohio or Oregon or Pennsylvania or South Carolina or Texas or Utah or Vermont or Virginia or Washington or Wisconsin or District of Columbia
$125k-$175k/yr HybridFull Time
5+ YOE5+ years software engineering with API development and partner integrations; strong REST/WebSocket/JSON/OAuth skills; proficiency in TypeScript/JavaScript or Python; excellent troubleshooting and communication.
REST APIs, WebSockets, JSON, OAuth, Postman, curl, browser developer tools, network analyzers, TypeScript, JavaScript, Python, React, Node.js, Swagger/OpenAPI, ReadMe
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