17 software systems engineer jobs at 7 companies in Sullivan, MO
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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
1mo
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Systems/Controls Engineer II
Kirkwood, Missouri, United States
OnsiteFull Time
3+ YOEBachelor's degree in engineering or computer science (or equivalent experience), 3+ years engineering experience with software emphasis, software V&V and regression testing experience, ability to author and review SRS/SDS/SAD/test protocols, strong communication and organizational skills.
Microsoft Office, Aras PLM, D2, C/C++, C#, Python
2mo
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Lead Software Engineer
O'Fallon, Missouri, United States
$140k-$231k/yr OnsiteFull Time
Strong backend engineering with Java and Spring Boot, Oracle/SQL experience, MCP servers and AI-assisted development tool familiarity, distributed systems, testing, secure coding, microservices, observability, and mentoring experience.
Java, Spring Boot, Oracle, SQL, MCP servers, GitHub Copilot, Claude, Gemini, Sterling Connect: Direct, SFTP, MQ, Kubernetes, Docker
2mo
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Senior Software Engineer
O'Fallon, Missouri, United States
$115k-$184k/yr OnsiteFull Time
Strong OOP and Java skills, experience with CI/CD, containers, Kafka/Flink, observability (OpenTelemetry), secure coding, test-driven practices, and ability to mentor engineers and deliver large-scale distributed systems.
Java, Python, Bash, Apache Kafka, Apache Flink, OpenTelemetry, CI, CD, OOP, SOLID, 12-factor, TDD, BDD, OWASP, CWE, SEI CERT
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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
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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++
2mo
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Lead Software Engineer
O'Fallon, Missouri, United States
$140k-$231k/yr OnsiteFull Time
Technical lead for microservices and authentication/authorization; deep expertise in system design, Java/Spring stack, Oracle/SQL, cloud-native (AWS, Kubernetes), IaC (Terraform, CloudFormation), CI/CD, observability and security.
Core JAVA, Spring Integration, Spring Boot, Hibernate, REST/SOAP web services, Oracle/SQL Databases, AWS, Azure, Kubernetes, Terraform, CloudFormation, Splunk, React, Backstage
2w
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Software Developer III - DEW/Electrical Engineering Software (C#, Big Data)
Cedar Rapids or Lake Saint Louis or Mandan or Blacksburg
HybridFull Time
8+ YOE8+ years software development experience; proficiency in C#/C++ and data-intensive/distributed systems; experience with databases, Git, and Atlassian toolchain; BS in CS preferred.
C#, C++, Java, PostgreSQL, SQL, Oracle, Git, Jira, Confluence, Bitbucket, Bamboo, Kubernetes, Docker, AWS, Spring Boot, Big Data, Microservices, Agile, Scrum
2mo
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Senior Software Engineer
O'Fallon, Missouri, United States
$115k-$184k/yr OnsiteFull Time
Python for AI components; Java for scalable services; experience with AI/ML lifecycle, microservices, databases, and distributed systems.
Python, Java, PyTorch, TensorFlow, Hugging Face, Docker, Kubernetes, CI/CD
2mo
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Software Engineer II
O'Fallon, Missouri, United States
$92k-$147k/yr OnsiteFull Time
Experience in Java and Python, CI/CD, Kafka and Flink, OpenTelemetry, secure coding, IaC, TDD/BDD, and building distributed systems.
Java, Python, Bash, Apache Kafka, Apache Flink, OpenTelemetry, CI/CD, Infrastructure as Code, OWASP, CWE, SEI CERT, TDD, BDD
2mo
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Product Manager- Systems Engineer (Mid-Level & Lead)
Hazelwood or Saint Charles or Berkeley
$112k-$185k/yr OnsiteFull Time
5+ YOEBachelor in engineering or related field; experience in systems, software, or hardware engineering; product management and Agile leadership.
2mo
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Product Manager- Systems Engineer (Mid-Level & Lead)
Hazelwood or Saint Charles or Berkeley
$112k-$152k/yr OnsiteFull Time
5+ YOEBachelor's degree in engineering or related field; experience in systems, software, hardware, or project engineering; knowledge of engineering disciplines; experience in product management or development.
3mo
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Software Development Engineer in Test (SDET) II
O’Fallon, Missouri, United States
$92k-$147k/yr HybridFull Time
SDET with experience building functional, integration, and UAT test strategies for high-throughput systems. Linux, shell scripting, and programming in C/C++ or Java. Git experience. Bachelor’s in CS/SE/IT/Math. Strong communication.
Linux, Shell scripting, C, C++, Java, Git
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
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Distribution Engineer - Greater St. Louis Area
St. Louis or Wentzville or Edwardsville
$71k-$134k/yr RemoteFull Time
ABET BS in Engineering (preferably electrical), knowledge of electric utility distribution systems, EIT/FE or PE preferred, valid driver’s license, ability to travel and pass drug/fit-for-duty tests, proficiency with Microsoft Office, GIS and distribution design software.
Microsoft Office, GIS, Spida Calc, O-Calc, Pole Foreman, Katapult, AutoCAD, SPANS, NJUNS, IkeGPS
2mo
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Lead AI Engineer
O Fallon or Arlington or Purchase
$140k-$231k/yr OnsiteFull Time
Experience designing and deploying production-grade AI systems; lead multi-agent, tool-using architectures; strong cross-functional leadership; production observability and governance.
Copilot Studio, Azure AI Foundry, Salesforce Agentforce, Microsoft Power Platform
2w
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Technical Program Manager – AEROS Software Team
Chesterfield, Missouri, United States
$110k-$170k/yr HybridFull Time
5+ YOE5+ years program/project management experience, bachelor\u0002s in engineering, experience with control systems/renewables, contract and requirements review, Agile software delivery, strong communication and organization.
AEROS
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