59 senior software developer jobs at 22 companies in Sullivan, MO
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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
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.
4d
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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
1d
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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
2w
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Software Developer II - Connect Service Software (Front End, Billing Software)
Cedar Rapids or Lake Saint Louis or Mandan
HybridFull Time
5+ YOE5+ years software development experience; proficiency with Angular/TypeScript, Java, RDBMS, automated testing, cloud and container technologies; bachelor's degree preferred.
Angular, TypeScript, Java, Postgres, Oracle, AWS, Kubernetes, Spring Boot, Kafka, Cassandra, Git, JIRA, Confluence, Bitbucket, Bamboo, generative AI
1w
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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
1mo
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Sr Software Developer - API Integration
Creve Coeur or St. Louis
$110k-$130k/yr HybridFull Time
5+ YOE5+ years software development experience; hands-on Power Apps/Power Automate and Power Platform, REST/JSON API integration, Microsoft Azure, CI/CD and DevOps, Dataverse, Infrastructure as Code, and data mapping; knowledge of data privacy.
Microsoft Power Platform, Power Apps, Power Automate, Dataverse, Microsoft Azure, RESTful APIs, JSON, CI/CD, DevOps, Infrastructure as Code, ServiceNow, RPA, Microsoft SharePoint
2mo
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Senior Vice President, Developer Enablement
O'Fallon or Arlington or New York City or Purchase
OnsiteFull Time
Senior leadership role overseeing developer enablement and related strategy.
1mo
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Lead Software Engineer, Phantom Works
Berkeley or Arlington or Mesa or El Segundo or Colorado Springs or Saint Louis
$198k-$286k/yr OnsiteFull Time
5+ YOEActive Top Secret U.S. clearance and 5+ years leading software architecture, DevSecOps/CI-CD, and Agile delivery for real-time embedded or distributed systems; bachelor’s degree or equivalent.
Git, Jenkins, JIRA, Docker, Kubernetes, AWS GovCloud, Azure Government, Python, Bash, C, C++, MATLAB, Jupyter
3w
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Lead Software Engineer
O'Fallon, Missouri, United States
HybridContract
Bachelor's in CS/IS, strong full-stack Java, API, Angular, React skills; experience with Agentic frameworks, MCP and LLM integrations; Qlik Sense and data architecture experience; strong analytical and communication skills.
Java, APIs, Angular, React, Agentic Frameworks, MCP, LLMs, Qlik Sense, Tableau, Power BI, WebFocus, Hadoop, Kafka
1mo
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Senior Developer
Sunset Hills, Missouri, United States
RemoteFull Time
5+ YOE5+ years professional software development, strong SQL and relational DB skills, experience building system integrations (APIs/EDI), ability to work with legacy code, clear communication, and security awareness.
SQL, RPG, IBM i, IBM Power Systems, EDI, X12, REST, JSON, APIs, ERP, Microsoft Azure, AWS
1w
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F-15 Mission Systems Software Engineer (Associate, Experienced, & Senior)
Berkeley, Missouri, United States
$99k-$217k/yr OnsiteFull Time
Bachelor's in engineering or related field, ability to obtain U.S. Secret clearance/U.S. Person status, 2+ years with C/C++/C#/Python/Java/Ada and object-oriented development, experience designing architectures and embedded real-time software, Agile and DevOps exposure.
C, C++, C#, Python, Java, Ada, GitLab, Git Bash, Gradle, Jira, Jenkins, Artifactory, RTOS, Agile, SAFe
3w
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Senior Python Developer
Fenton, Missouri, United States
OnsiteFull Time
5+ YOE5+ years software development experience with 3+ years Python; experience with RESTful APIs, databases, cloud platforms, testing, CI/CD, containerization, and mentoring.
Python 3.x, Django, Flask, FastAPI, RESTful APIs, PostgreSQL, MySQL, SQL Server, MongoDB, Redis, Git, GitHub Actions, Jenkins, Docker, Kubernetes, AWS, Azure, GCP, pytest, unittest, TensorFlow, PyTorch, scikit-learn, React, Vue.js, JavaScript
1mo
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Lead Software Engineer, Phantom Works
Berkeley or Arlington or Mesa or El Segundo or Colorado Springs or Saint Louis
$198k-$286k/yr OnsiteFull Time
5+ YOEActive U.S. Top Secret clearance, bachelor’s degree or equivalent, 5+ years leading software/system architecture and DevSecOps/DevOps efforts, Agile team lead experience, CI/CD and config management, scripting (Python/Bash).
Git, Jenkins, JIRA, Collaborator, Beyond Compare, VersionOne, Python, Bash, Docker, Kubernetes, AWS GovCloud, Azure Government, MATLAB, Jupyter, C/C++
3w
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Hybrid Cloud Platform Software Engineer
Denver or Sterling or St. Louis or Sunset Hills
$99k-$207k/yr OnsiteFull Time
7+ YOEBachelor's in STEM or equivalent experience, 7+ years developing software/cloud solutions, AWS, Git, Kubernetes, Helm, Trino experience, strong communication; TS/SCI with poly preferred.
Amazon Web Services, Git, Kubernetes, Helm, Trino, Red Hat OpenShift, Cameo
10h
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Lead Applications Developer
Chesterfield, Missouri, United States
RemoteFull Time
8+ YOEBachelor's degree or equivalent experience; 8 years of relevant technical or business experience; software development lifecycle, code management, data warehouse, SQL, data modeling, and agile methodology experience.
SQL, Oracle, Linux/UNIX, IBM DataStage (Infosphere), Java, Spring, Agile, SCRUM, Kanban
3w
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Senior NetSuite Engineer
Chesterfield, Missouri, United States
OnsiteFull Time
3+ YOE3+ years NetSuite development experience, proficiency in SuiteScript 2.x, SDF, SuiteTalk/REST/SOAP integrations, JavaScript, strong troubleshooting and stakeholder communication; Bachelor\u0002s in CS/IS or equivalent.
SuiteScript 1.0, SuiteScript 2.x, SuiteCloud Development Framework (SDF), SuiteTalk, REST, SOAP, JavaScript, Celigo, Boomi, MuleSoft, HTML, CSS, SQL
3w
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Hybrid Cloud Platform Software Engineer
Denver or St. Louis or Sterling or Sunset Hills
$99k-$207k/yr OnsiteFull Time
7+ YOEBachelor's in STEM (or equivalent certs), 7+ years developing software/cloud solutions, AWS, Git, Kubernetes, Helm, Trino experience, TS/SCI clearance preferred, strong communication and critical thinking.
Amazon Web Services, Git, Kubernetes, Helm, Trino, Red Hat OpenShift, Cameo
2mo
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Mainframe Developer (Remote)
Chesterfield, Missouri, United States
RemoteFull Time
5+ YOEBachelor's degree in CS/IT, 5+ years COBOL mainframe development experience (Medicaid experience preferred), strong analytical and communication skills, ability to work independently and on teams.
COBOL
19h
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Citrix Software Virtualization Engineer
Arnold or Springfield
$130k-$140k/yr OnsiteFull Time
5+ YOEBachelor's degree or equivalent, 5+ years in systems administration or virtualization, 3+ years VDI experience, 2+ years Citrix XenApp or comparable virtualization experience, and 01M Level II certification.
VMware Horizon, Citrix Virtual Apps and desktops, Microsoft Remote Desktop Services, Citrix XenApp, Microsoft App-V, FlexApp, App Volumes, PowerShell, VMware DEM, Liquidware Labs Profile-Unity, Active Directory, Group Policy, ServiceNow, Remedy, VMware Certified Associate for Data Center Virtualization (VCA-DCV)
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