64 systems developer jobs at 31 companies in Sullivan, MO
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IEC Systems Engineer - TS/SCI
Springfield or Arnold
$126k-$170k/yr OnsiteFull Time
8+ YOEEight+ years of systems engineering experience; TS/SCI clearance; 8570 compliance; US citizenship; Bachelor's degree; strong technical documentation and project coordination skills.
Documentation tools, Microsoft Visio, Jira, Confluence, Kanban boards
2mo
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IEC Systems Engineer - TS/SCI
Springfield or Arnold
$126k-$170k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
8+ YOE8+ years Systems Engineer experience; TS/SCI clearance; Bachelor's degree; 8570 compliance; technical documentation experience.
8570 Compliance, Technical documentation tools (unspecified)
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.
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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Senior Systems Integration Engineer
Westborough or Chesterfield
$100k-$150k/yr RemoteFull Time
5+ YOEBachelor's in CS/EE or equivalent, 5+ years integration and controls testing, Python/Bash/Linux experience, networking and SCADA/DNP3/Modbus familiarity, PLC and test automation experience.
AEROS, Python, Bash, Linux, SCADA, DNP3, Modbus TCP/IP, PLC, Subversion, GitHub, JIRA
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
3mo
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Email Marketing Systems Engineer
O Fallon, Missouri, United States
OnsiteFull Time
3+ YOE3+ years IT experience; build and maintain applications; scripting with JavaScript/Python; DNS/DKIM/SPF/DMARC knowledge; adaptable to new tech.
Salesforce Marketing Cloud, SSJS, DNS configuration, JavaScript, Python, MS SQL Server, Jira, Bitbucket
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.
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Senior Systems Safety Engineer (Bridgeton, MO, US, 63044)
Bridgeton, Missouri, United States
HybridFull Time
5+ YOELead safety analyses for MIL-STD-882-based programs; 5+ years system safety; willingness to travel ~20%; active DoD security clearance.
2w
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Adjunct: Information Systems
St. Louis, Missouri, United States
OnsitePart Time
Master's in Information Systems required (PhD preferred). Teach undergraduate courses in cybersecurity, web development, and incident response; use Canvas; prepare syllabus, lesson plans, and grade promptly.
Canvas
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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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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
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
3w
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Test Engineer
High Ridge, Missouri, United States
OnsiteFull Time
5+ YOEBachelor's in engineering and 5+ years testing/calibration experience with high-voltage electrical measurement systems, ISO 17025 compliance, test method development, and technical reporting.
Solidworks
3w
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Test Engineer
High Ridge, Missouri, United States
OnsiteFull Time
5+ YOEBachelor's in Mechanical or Electrical Engineering and 5+ years testing/calibration experience with high-voltage electrical measurement systems; ISO 17025 experience; ability to develop procedures and ensure compliance.
Solidworks
1mo
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Operating Engineer
O'Fallon, Missouri, United States
$31-$36/hr OnsiteFull Time
Operate and maintain mechanical, electrical and plumbing systems; perform preventive and corrective maintenance; comply with safety and codes; possess trade licensure as required.
Microsoft Outlook, Microsoft Excel, Microsoft Word
1mo
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Automation Engineer
Saint Peters, Missouri, United States
OnsiteFull Time
2+ YOE2+ years PLC/SCADA experience, controls/programming experience, robotics and conveyor systems familiarity, ability to lift 50+ lbs, flexible schedule availability, bachelor's degree preferred.
RSLogix 5000, Allen Bradley Controllogix, CompactLogix, SCADA, Ethernet, ControlNet, DeviceNet, Profibus, AS-I, Microsoft Word, Microsoft Excel, Microsoft Outlook
1d
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Substation Engineer
Chesterfield, Missouri, United States
OnsiteFull Time
Bachelor's degree in electrical engineering with December 2026 or May 2027 graduation expected; knowledge of electric-power systems and interest in high-voltage substations. Internship or project experience preferred.
1mo
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Electrical Engineer
Labadie, Missouri, United States
$71k-$172k/yr OnsiteFull Time
Bachelor's in electrical engineering required; DCS/PLC and PI system experience preferred; strong analytical, communication and computer skills; ability to work overtime, take off-hour call-outs, and travel between Missouri energy centers.
Distributed control system, programmable logic control, PI system (Plant Information Monitoring and Data Storage System)
1mo
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Engineer - Quality System-Aerofil
Sullivan, Missouri, United States
OnsiteFull Time
5+ YOE5+ years quality experience, bachelor\u0002s in engineering/quality/science, experience leading audits and quality systems (ISO 22716), strong technical writing and leadership, familiarity with RCA/FMEA/CAPA.
ISO 22716, RCA, FMEA, CAPA
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