57 software systems engineer jobs at 30 companies in Sparta, IL
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Mid Systems Engineer
Denver or St. Louis or Sterling or Springfield
$69k-$142k/yr OnsiteFull Time
4+ YOETS/SCI required, bachelor in engineering/CS or equivalent, 4+ years systems engineering on software-intensive systems, requirements analysis, interface documentation, V&V, Agile experience, ability to work onsite at a government facility.
SAFe, MBSE
1mo
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Mid Systems Engineer
Denver or Springfield or Sterling or St. Louis
$69k-$142k/yr OnsiteFull Time
4+ YOETS/SCI clearance required, ability to obtain polygraph; Bachelor's in engineering or related (or equivalent); 4+ years systems engineering on software-intensive systems; requirements, interface, and V&V experience; Agile/SAFe experience; strong technical writing.
SAFe, MBSE
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
2mo
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Systems Integration Testing Engineer
St Louis, Missouri, United States
$112k-$179k/yr OnsiteFull Time
6+ YOEMust hold Top Secret clearance and be willing to upgrade to TS/SCI with polygraph. BS in systems/electrical/physics/software engineering (or related) with 8 years' systems engineering experience (6 years with Master's). Experience in sensor imaging systems, test design, data verification, and strong written/oral communication required.
3w
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Software Engineer I
St. Louis, Missouri, United States
OnsiteFull Time
0+ YOEBS in EE/Software Engineering/Computer Science,0–3 years experience in desktop or embedded development,proficiency with C/C++,C#,Visual Basic,SQL,Java,IDE experience,embedded systems and hardware testing.
C, C++, C#, Visual Basic, SQL, Java, Microsoft Visual Studio
3w
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Systems Engineer- St. Louis, MO or Solon, OH
St. Louis or Solon
OnsiteFull Time
5+ YOEBachelor's in EE/CE/CS/Systems Engineering,5+ years system analysis/design experience, RF communications and hardware/software development experience,ability to write specifications and collaborate cross-functionally.
Microsoft Excel
2w
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Staff Software Engineer
St. Louis or Burlington
$111k-$166k/yr HybridFull Time
3+ YOEBachelor's in CS/Engineering/Data Science, 3+ years in ML/data/search systems, strong Python, backend and data engineering experience, SQL, cloud (GCP/AWS), and production ML/LLM system design.
Python, REST API, Pandas, NumPy, MLFlow, TensorFlow, PyTorch, Scikit-learn, AWS Services, GCP, Kubernetes, Bedrock, Kafka, LangGraph, LangChain, AirFlow, Qdrant, Docker, Git, CI/CD, SQL
1mo
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Principal Engineer - Systems
St. Louis, Missouri, United States
RemoteFull Time
11+ YOE11+ years software and infrastructure engineering experience, expertise in cloud (Azure), security (MFA, SSO, MIM, OTP), distributed systems, and strong stakeholder communication and mentoring skills.
Microsoft Active Directory, Microsoft Entra, AppSec, MFA, SSO, MIM, OTP, Azure
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.
4d
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Embedded Software Engineer Intern
Bridgeton or St. Louis
$41k-$53k/yr OnsiteInternship
High school diploma or GED and current junior-level or above enrollment in a bachelor's program; basic knowledge of C, C++, C#, Java, Python, git, operating systems, and Microsoft Office.
C, C++, C#, Java, Python, git, MATLAB, Simulink, Windows, Linux, Microsoft Office
1mo
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Senior Software Engineer - GoLang and Python
St. Louis or Missouri or Minnesota or Nebraska or Kansas or Iowa
$88k-$157k/yr OnsiteFull Time
Extensive experience with Python and Go, API design (REST,gRPC), GKE/GCP, microservices, CI/CD, DevOps, IaC (Terraform), SQL, Git, observability, messaging (Kafka, Pub/Sub), and integrating AI/MCP into systems.
Python, GoLang, REST, gRPC, Google Kubernetes Engine, Google Cloud Platform, Model Context Protocol (MCP), Datadog, OpenTelemetry, SQL, Git, GitHub, GitLab, Terraform, Apache Kafka, Google Pubsub, AWS SNS/SQS, Istio
4w
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Mid Software Engineer (SFA)
Saint Louis, Missouri, United States
OnsiteFull Time
5+ YOE5-7 years software development experience; proficiency in Python/Java/C#/Javascript; experience translating requirements, design, testing, deployment, database design, code reviews, and system integration. Active TS/SCI clearance and US citizenship required.
Python, Java, C#, Javascript
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
22h
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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)
1mo
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Requirements Engineer
St Louis, Missouri, United States
$80k-$128k/yr OnsiteFull Time
Bachelor's in systems engineering or related (or 6 years systems engineering experience), up to 6 years engineering experience, TS/SCI clearance adjudication or ability to obtain SCI and pass polygraph; MBSE and software framework knowledge desired.
3w
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Software Engineering Manager, Public Sector
San Francisco or St. Louis or New York City or Washington
$162k-$270k/yr HybridFull Time
5+ YOE2+ Mgmt5+ years engineering experience, 2+ years engineering management, ability to obtain TS/SCI, strong software development background, experience with distributed systems, cloud-native infrastructure, and mentoring.
3w
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Mechanical Engineer
Kansas City or Wichita or St. Louis
OnsiteFull Time
Bachelor's in Mechanical Engineering, PE license required, experience in commercial/institutional mechanical systems design, Revit MEP and manufacturer selection software experience preferred.
Revit MEP, Microsoft Office, IESVE, Trane TRACE
1mo
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Project Engineer
Sauget, Illinois, United States
$77k-$96k/yr OnsiteFull Time
3+ YOEBachelor's in Mechanical/Electrical Engineering, 3+ years technical energy project experience, operational HVAC/utility systems knowledge, PMP/DGCP/CEM/PE preferred, strong Microsoft and modeling software skills.
Google Office, Microsoft Office, Microsoft Excel, Microsoft Project, Microsoft Visio, GateCycle, Thermoflow
5d
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Sr. Mechanical Engineer
Saint Louis or Charlotte
HybridFull Time
5+ YOEBachelor's degree in mechanical engineering, 5+ years of relevant experience, and proficiency in Revit, Trane Trace 3D, and load calculation software. HVAC, plumbing, fire protection, and industrial systems experience required.
Revit, Trane Trace 3D
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