58 software development engineer jobs at 18 companies in Sullivan, MO
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Software Engineer II
O'Fallon, Missouri, United States
$92k-$147k/yr OnsiteFull Time
Experience in software development and SDLC, strong Java proficiency, Git and CI/CD experience, familiarity with Agile, degree in CS/Engineering/IT or equivalent experience; experience with decisioning platforms preferred.
Java, Git, CI/CD, Jira, Confluence, Rally, Decision Management Program (DMP)
3w
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Software Engineer
Chesterfield or Greenwood Village
$85k-$140k/yr HybridFull Time
2+ YOEBachelor's in CS or related, 2+ years software development experience, experience with C#/.NET, SQL Server, web fundamentals, Git, testing, and strong communication and problem-solving skills.
C#, .NET, SQL Server, HTML, CSS, JavaScript, Git, TypeScript, Angular, React, REST APIs, Azure DevOps, Azure, AWS, Application Insights, DataDog
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.
1d
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Software Developer
O'Fallon, Missouri, United States
$45k-$121k/yr OnsiteFull Time
3+ YOERequires 3–5 years of experience developing enterprise Java applications with Spring Boot, REST APIs, Angular, Node.js, microservices, cloud platforms, DevOps, and information security technologies.
Java, Spring Boot, REST APIs, Angular, HTML, CSS, JavaScript, jQuery, Node.js, AWS, Azure, PCF, Kubernetes, CI/CD, Splunk
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
4d
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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
1w
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Engineering - Software Engineer
Kentucky or Florida or Arizona or Colorado or Indiana or Missouri or Georgia or Texas or Alabama
OnsiteFull Time
Experience developing web applications with PHP and related frameworks, MySQL, Git, AWS, container tools (Vagrant/Docker), front-end (HTML5,CSS,Less,jQuery), familiarity with Agile; associates or bachelor's degree preferred; occasional travel.
PHP 5, Symfony, Zend, MySQL, Git, Agile, Amazon Web Services, Vagrant, Docker, jQuery, Less, Bootstrap, CSS, HTML 5, Linux Ubuntu, C#, .NET, React .js, node .js, Doctrine Entity Framework
4w
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Software Engineer I
Fenton, Missouri, United States
HybridFull Time
1+ YOE1-2 years relevant experience or equivalent practical experience; knowledge of web frameworks, OOP, REST services, databases, basic cloud (AWS/GCP/OCI), secure coding, and AI-assisted development tools.
GitHub Copilot, Claude, AWS, GCP, OCI, REST
4w
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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
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
2w
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Director - Software/ AI Native Engineer
O'Fallon, Missouri, United States
$175k-$180k/yr OnsiteFull Time
8+ YOEBachelor's required; 8+ years experience; deep expertise in cloud-native architecture, microservices, API management, AWS, AI-assisted development and AI governance.
GitHub Copilot, Claude Code CLI, AI Foundry, Bedrock, OpenAI, Anthropic, Model Context Protocol (MCP), AWS
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
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
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
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
2mo
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Senior Vice President - Software Engineering, Mastercard Send
O'Fallon or Pune
OnsiteFull Time
Leading software engineering for Mastercard Send and ensuring compliance with Mastercard information security policies; role is eligible for competitive base salary and annual bonus; benefits provided.
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
2w
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Senior NetSuite Engineer
Bourbon, Missouri, United States
OnsiteFull Time
3+ YOEBachelor's or equivalent, 3+ years NetSuite development, strong SuiteScript 2.x and SDF experience, REST/SOAP integrations, JavaScript proficiency, data migration skills, troubleshooting and stakeholder communication.
SuiteScript 1.0, SuiteScript 2.x, SuiteCloud Development Framework (SDF), SuiteTalk, REST, SOAP, JavaScript, Celigo, Boomi, MuleSoft, HTML, CSS, SQL
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