East Saint Louis • 50 milesRemote · Hybrid · Onsite · Field · All Environments
East Saint Louis • 50 milesRemote · Hybrid · Onsite · Field · All Environments
East Saint Louis • 50 milesRemote · Hybrid · Onsite · Field · All Environments
East Saint Louis • 50 milesRemote · Hybrid · Onsite · Field · All Environments
309 sr software engineer jobs at 111 companies in East Saint Louis, IL
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Sr. Software Engineer
O'Fallon, Missouri, United States
$100k-$110k/yr OnsiteFull Time
5+ YOEBachelor's degree in computer science, information technology, or related field; 7+ years of software development experience; strong Java 8, Spring Boot, microservices, Angular JS, testing, and cloud platform skills.
Java, Spring Boot, Microservices, Apache Kafka, AngularJS, JUnit, Mockito, PCF, Microsoft Azure, Docker, Kubernetes, RESTful APIs, SQL, NoSQL
3d
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Sr. Software Engineer (Data & Application Engineer)
Cincinnati or Atlanta or Hopkins or Chicago or Gresham or Denver or Charlotte or Brookfield or Irving or Earth City
$112k-$131k/yr HybridFull Time
5+ YOEBachelor’s degree or equivalent experience and 5–6 years of relevant experience; strong programming, data engineering, API, cloud, DevOps, database, and secure software development skills.
Java, Python, SQL, JavaScript, Git, CI/CD, DevOps
1mo
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Software Engineer
Denver or St. Louis or Sterling or Springfield
$82k-$172k/yr OnsiteFull Time
5+ YOEBachelor's in a technical field, TS/SCI with polygraph, 5+ years software development experience with Java and/or Python, web frameworks, relational/NoSQL databases, Agile experience, and secure coding practices.
Java, Python, ArcGIS, GeoServer, OpenLayers, Leaflet, Cesium, Docker, Kubernetes, CI/CD
3d
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Senior Software Engineer
Bridgeton or United States
$92k-$164k/yr RemoteFull Time
8+ YOEBachelor's degree in computer science, information technology, or engineering; 8 years software development; full-stack React, Node.js, and .NET; Azure, data workflows, Git, and AI solution experience.
React, Node.js, .NET, Microsoft Azure, REST, Azure Data Factory (ADF), Databricks, Azure Service Bus, Azure SQL Managed Instance (SQL MI), Delta Lake, Git, Apache Tomcat, Quadient
1w
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Software Engineer (Desktop.NET)
Kansas City or Denver or Chicago or Cincinnati or St. Louis or Florida or Iowa or Nebraska or Tennessee
$100k-$140k/yr RemoteFull Time
5+ YOE5+ years of .NET software engineering, strong C# and VB.NET, WinForms, modern .NET, SQL Server/T-SQL, ASP.NET/IIS, testing, Git, CI/CD, NuGet, monitoring, and agile product development experience.
C#, VB.NET, WinForms, .NET Framework, .NET, SQL Server, T-SQL, ASP.NET, IIS, SAP Crystal Reports, JSON, XML, Git, GitHub, NuGet, LINQ, Entity Framework, GitHub Actions, Azure DevOps, PowerShell, REST APIs, Claude Code, Codex
1mo
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Software Engineer
Denver or Springfield or Sterling or St. Louis
$82k-$172k/yr OnsiteFull Time
5+ YOEBachelor's in CS or related, 5+ years software development experience, Java and/or Python proficiency, experience with web frameworks and databases, TS/SCI clearance with polygraph required, Agile and secure coding experience.
Java, Python, ArcGIS, GeoServer, OpenLayers, Leaflet, Cesium, Docker, Kubernetes, CI/CD
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Software Engineer
Maryland Heights, Missouri, United States
$105k-$128k/yr HybridFull Time
5+ YOEBachelor's degree or equivalent, ability to obtain U.S. Secret Clearance, 5+ years software development experience with JavaScript/TypeScript/React and C# or C++, REST API experience, Agile/Jira experience.
JavaScript, TypeScript, React, C#, C++, REST, Jira, Jira Align, Azure Devops, Git, .NET MAUI, SAFe Agile
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Software Engineer
Maryland Heights, Missouri, United States
$105k-$128k/yr HybridFull Time
5+ YOEBachelor's degree or equivalent; 5+ years software development with JavaScript/TypeScript/React/C#/C++; experience with REST APIs, Agile/SAFe, Jira/Azure Devops, Git; ability to obtain U.S. Secret Clearance.
JavaScript, TypeScript, React, C#, C++, REST, SAFe, Jira, Jira Align, Azure Devops, Git, .NET MAUI
3mo
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Senior Software Engineer
O'Fallon, Missouri, United States
$115k-$184k/yr OnsiteFull Time
BS in Computer Science or related technical field; strong Java/Spring, Kafka, C++, JNI experience; software engineering best practices; leadership and problem solving; secure software development; willingness to mentor.
Java, Spring Boot, Kafka, C++, JNI
3mo
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Principal Software Engineer
Atlanta or Boston or Morristown or Plano or St. Louis or St. Petersburg or Hyderabad
HybridFull Time
8+ YOE8+ years backend software engineering; degree or equivalent; cloud, IaC, CI/CD; APIs; strong communication; leadership.
TypeScript, Node.js, PostgreSQL, Angular, AWS, Terraform, Elasticsearch, CI/CD, SASS
1w
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Lead Software Engineer - SRE
Charlotte or Saint Louis
$119k-$187k/yr HybridFull Time
5+ YOERequires 5+ years of software engineering, observability tooling, infrastructure support, toil reduction, and cloud application management experience, plus SRE and platform technology expertise.
Splunk, AppDynamics, Splunk Observability, Grafana, OpenTelemetry, OpenShift Container Platform, Java, JavaScript, Ruby, Python, JSON, Angular, Node.js, AWS, PCF, PKS, Kubernetes, OpenShift, Linux, Azure, Windows, VMware, Prometheus, Glassbox, Shell scripting
1mo
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ENGR SR SOFTWARE DEVT
Utah or Oklahoma or Dallas or Maine or Massachusetts or Wisconsin or South Dakota or Iowa or Montana or New Jersey or Delaware or Washington or New York or St. Louis or Ohio or North Carolina or Missouri or New Hampshire or Alabama or Rhode Island or Indiana or Georgia or South Carolina or Texas or Virginia or Kentucky or Kansas or Arizona or North Dakota or Montgomery County or Michigan or Vermont or Nebraska or Wyoming or Connecticut or Colorado or Mississippi or Idaho or New Mexico or Pittsburgh or Tennessee or Pennsylvania or Minnesota or West Virginia or Arkansas or Florida or New York or Maryland or Kansas City or Louisiana or Illinois
$106k-$146k/yr RemoteFull Time
5+ YOE5+ years software development (or HS+10), experience with Java/C#/Python, SQL/NoSQL, cloud (AWS), web security, and large-scale applications; strong problem solving and Agile experience.
Java, C#, Python, SQL, NoSQL, AWS, Lambda, Step Functions, Linux
1w
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Principal Software Engineer I
Maryland Heights, Missouri, United States
HybridFull Time
8+ YOEBachelor’s degree or equivalent experience, 8+ years software engineering experience, cloud architecture expertise, and advanced C#, .NET, microservices, Kubernetes, databases, CI/CD, and front-end skills.
C#, ASP.NET, .NET Core, .NET 8, GitLab, GitHub, Helm, Kubernetes, AWS, Google Cloud Platform (GCP), Cloud Run, GKE, Cloud Functions, Pub/Sub, Cloud SQL, Azure DevOps Repos, Bitbucket, ReactJS, TypeScript, JavaScript, HTML5, CSS3, REST APIs, OAuth2, OpenID Connect, SAML, JWT, SQL Server, PostgreSQL, MongoDB, DynamoDB, Kiro, Claude, GitHub Copilot, Amazon Q Developer, UiPath, Microsoft Power Automate, Automation Anywhere, Kafka, RabbitMQ, Splunk, Datadog, Grafana, Prometheus, OpenTelemetry, Elastic Stack
2mo
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C++ Software Engineer
St. Louis, Missouri, United States
OnsiteFull Time
2+ YOE2+ years C++ experience; OO design; full software life cycle; team collaboration; test-driven development.
C++, Linux, Python, Unix shell, JavaScript, Node.js
2w
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Software Engineer (Experienced, Senior)
Hazelwood or Berkeley
$127k-$217k/yr OnsiteFull Time
5+ YOEBachelor's degree and 5+ years of C/C++ and software development lifecycle experience required. Preferred: real-time embedded, safety-critical, Agile, clearance, and aerospace software experience.
C, C++, Python, C#, Assembly Language, GreenHills Integrity, Jira, ClearCase, Git, Agile, MIL-HDBK-516C, MIL-STD-882E, JSSSEH, DO-178C, Real Time Operating Systems
22h
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Sr. Automation Engineer Robotics Software
Ankeny or St. Louis or United States
$115k-$144k/yr HybridFull Time
3+ YOEMaster's degree in informatics, computer engineering, robotics engineering, or a related quantitative field plus 3 years developing robotics automation software, PLC integrations, Python applications, HMI systems, and machine-learning solutions.
PLC, OPC UA, Modbus, Python, JavaScript, Vue, FastAPI
2w
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Software Engineer (Experienced, Senior)
Hazelwood or Berkeley
$127k-$217k/yr OnsiteFull Time
5+ YOEBachelor's degree, 5+ years of C/C++ and software development lifecycle experience. Real-time embedded software, safety-critical development, Secret clearance eligibility, and U.S. Person status required.
C, C++, Python, C#, Assembly Language, GreenHills Integrity, Jira, ClearCase, Git, Microsoft?, Vehicle Management System (VMS), Software Development Lifecycle (SDLC), MIL-HDBK-516C, MIL-STD-882E, JSSSEH, DO-178C
2w
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Sr Engineer
St. Louis, Missouri, United States
$73k-$121k/yr OnsiteFull Time
8+ YOEBachelor's in CS or related, 8+ years Microsoft 365/Exchange administration or 3–6 years software engineering experience, PowerShell and Microsoft Graph automation, Power Platform governance, strong communication and troubleshooting.
Exchange Online, Microsoft 365, EOP, Defender for Office 365, SPF, DKIM, DMARC, Entra ID, Teams, SharePoint, OneDrive, Power Automate, Power Apps, Dataverse, Microsoft 365 Copilot, Copilot Studio, Unified Audit Log, Microsoft Purview, PowerShell, Microsoft Graph API, CI/CD
2mo
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Embedded Software Engineer, Electronics Engineering
St. Louis, Missouri, United States
OnsiteFull Time
10+ YOE10+ years embedded systems experience with 7+ years in motor control; bachelor's in electrical/electronics engineering required; strong C/C++ firmware, MATLAB/Simulink, motor control algorithms, real-time and safety-critical embedded software skills.
MATLAB/Simulink, C/C++, Modbus, BACnet, UART, SPI, I2C, Bluetooth, Wi-Fi
1w
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Software DEVELOPER
O'Fallon, Missouri, United States
$60k-$135k/yr OnsiteFull Time
5+ YOERequires 5–8 years of experience developing enterprise Java applications with Spring Boot, REST APIs, Angular, Node.js, microservices, cloud platforms, DevOps, and secure coding practices.
Java, Spring Boot, REST APIs, Angular, HTML, CSS, JavaScript, jQuery, Node.js, AWS, Azure, PCF, Kubernetes, DevOps, Splunk, CI/CD
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