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
341 senior software developer jobs at 112 companies in East Saint Louis, IL
2mo
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Senior Software Engineer
O'Fallon, Missouri, United States
$115k-$184k/yr OnsiteFull Time
Design, develop, test, and maintain software; strong Java/Spring, cloud, CI/CD, security, and mentoring.
Java, Spring Boot, Spring Security, Maven, Hibernate/JPA, REST, SQL Server, NUnit/JUnit, Splunk, PCF, AWS, CI/CD, Jenkins, XLR, Sonar, Clover
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
1d
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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
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
1w
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Senior Software Developer
O'Fallon, Illinois, United States
$110k-$120k/yr OnsiteFull Time
Bachelor's degree, Java web development, DevSecOps pipeline experience, Secret clearance, and Security+ certification or ability to obtain it immediately after employment.
Java, HTML5, Angular, Spring, RHEL, SQL, Oracle RDBMS, JavaScript, XML, WebLogic, Tomcat, Gradle, Maven, Ant, Python, DevSecOps, Linux, Windows, Apache, Docker, Kubernetes, Git, Jenkins, Artifactory, BASH, Perl, PowerShell, Ansible, Puppet, Chef, Terraform, JUnit, Selenium, Cucumber, Cypress, SonarQube, Fortify, Splunk, React JS, PL/SQL, Kanban, SCRUM, SAFe, DevOps, Jira
1mo
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Software Developer Engineer (Experienced or Senior)
Hazelwood or Berkeley or Saint Louis
$127k-$217k/yr OnsiteFull Time
5+ YOEBachelor's degree, 5+ years full‑stack software development, U.S. person able to obtain U.S. Secret security clearance, experience with mission/safety‑critical systems, agile and leadership experience.
1mo
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Software Developer Engineer (Experienced or Senior)
Hazelwood or Berkeley or Saint Louis
$127k-$217k/yr OnsiteFull Time
5+ YOEBachelor's degree, 5+ years full stack software development, ability to obtain U.S. security clearance (Secret), experience with mission/safety-critical systems, agile experience, strong problem solving and leadership skills.
7h
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Senior Software Developer - 100% Remote
North America or Herndon or Charlotte or Fort Collins or Greensboro or Pasco or Columbus or Stennis Space Center or Mechanicsburg or Scottsdale or Cincinnati or Corning or Fort Wayne or Albuquerque or Jacksonville or Fort Belvoir or Arlington or Fort Campbell or North Tonawanda or Columbia or Pittsburgh or Dallas or Boise or Cheyenne or Portland or Spokane or Keesler or Sioux City or Terre Haute or Jacksonville or Fort Knox or Kalamazoo or Salt Lake City or Nellis AFB or Orlando or Alpharetta or Baton Rouge or Peterson or Santa Fe or Richmond or JBSA Randolph or San Antonio or San Antonio or Kansas City or Saint Charles or Montgomery
$55-$65/hr RemoteFull Time
8+ YOEBachelor's or master's degree in computer science, engineering, or related field; 8+ years software development experience; 5+ years with ASP.NET, Node.js, C#, REST APIs, mobile platforms, Azure, and CI/CD; US citizenship and Public Trust eligibility.
ASP.NET, Node.js, C#, REST APIs, Native iOS, Android, React Native, Flutter, Azure, CI/CD, Azure Functions, Java, .NET, Python, Agile, Scrum, Git, Azure DevOps
2mo
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Senior Software Engineer
O'Fallon, Missouri, United States
$115k-$184k/yr OnsiteFull Time
3+ YOEBachelor's degree or equivalent, 3+ years software engineering experience (financial services preferred); strong software engineering knowledge, secure solution delivery, SDLC experience, and strong communication and mentoring skills.
2mo
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Senior Software Engineer - News Engineering (Elasticsearch)
New York or St. Louis
$114k-$190k/yr HybridFull Time
Strong experience with Java and Python on Linux; real-time systems; IP-based protocols; unit testing; Elasticsearch; cloud infrastructure; container orchestration; strong problem-solving and independent communication.
Java, Python, Linux, Elasticsearch, Kubernetes, Terraform, GitLab CI/CD, GitHub Copilot
3w
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Software Engineer
St. Louis, Missouri, United States
$100k/yr HybridFull Time
5+ YOE5+ years software development with cloud/data engineering on Microsoft Azure, production ownership, Python/TypeScript, SQL/Snowflake, Terraform, Git, strong communication and problem-solving.
Microsoft Azure, Azure Functions, Python, TypeScript, Node.js, Snowflake, SQL Server, T-SQL, SQL, Terraform, Datadog, Git, Microsoft Graph, Checkov, Event Grid, Service Bus, VNet, OAuth 2.0, PGP, S/MIME
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
6d
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Senior Software Engineer (Modern .NET)
Denver or Kansas City or Chicago or Cincinnati or St. Louis or Florida or Iowa or Nebraska or Tennessee
$120k-$160k/yr RemoteFull Time
6+ YOERequires 6+ years of software engineering experience, C#/.NET and ASP.NET Core, REST APIs, relational databases, SQL Server, EF Core, testing, cloud deployment, CI/CD, and Git workflows.
C#, .NET, ASP.NET Core, EF Core, SQL Server, Azure, React, TypeScript, REST APIs, CI/CD, Git, Angular, Vue, Figma, Terraform, Bicep, Culture Index, Microsoft Windows
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
1w
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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
3mo
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Senior Developer
St. Louis, Missouri, United States
OnsiteFull Time
8+ YOEBachelor’s or Master’s in CS/Engineering; 8+ years mobile development (Android/iOS); 3+ years Kotlin Multiplatform; strong architecture, KMP, and cross-platform data/UI design; CI/CD; device-connected apps; AI-assisted development experience.
Kotlin, Kotlin Multiplatform, Android, iOS, SwiftUI, Jetpack Compose, Gradle, CI/CD, Dependency Injection, BLE, Wi-Fi, TCP, KMP-iOS interoperability
1mo
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Software Developer - Advanced (MO, Saint Louis)
St. Louis, Missouri, United States
OnsiteFull Time
Requires RMF knowledge, experience with Python, HTML, CSS, JavaScript, React, Tableau, database development, and secure full‑stack software development; baccalaureate degree required.
Python, HTML, CSS, JavaScript, React, Tableau
4w
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Software Developer II - Meter Data Management Software (Full Stack, Databricks)
Cedar Rapids or Lake Saint Louis or Mandan
HybridFull Time
5+ YOE5+ years software development experience; proficiency with Databricks, Delta Lake, Spark, AWS, Java or Scala, data pipelines, and cloud-based full‑stack development.
Databricks, Delta Lake, Spark, Kafka, AWS, S3, Lambda, EC2, EMR, SQS, SNS, CloudWatch, Oracle, Postgres, Cassandra, DynamoDB, Java, Scala, Docker, Kubernetes, JIRA, Confluence, Bitbucket, Bamboo, Python, JavaScript, Bash, Angular, Spring Boot, MDM, SQL, CI/CD
2w
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Software Developer II - Utility Billing Software (Front End, Angular)
Cedar Rapids or Lake Saint Louis or Mandan
HybridFull Time
5+ YOE5+ years software development experience; proficient with Angular/TypeScript, Java, RDBMS, cloud and container tooling; strong testing, Git, and collaboration skills.
Angular, TypeScript, Java, Postgres, Oracle, AWS, Kubernetes, Spring Boot, Kafka, Cassandra, SQL, Git, JIRA, Confluence, Bitbucket, Bamboo, Automated Testing, Generative AI, Agentic AI
2d
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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
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