58 security software engineer jobs at 28 companies in Sparta, IL

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Software Engineer
Denver or St. Louis or Sterling or Springfield
$82k-$172k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOEBachelor's in a technical field, TS/SCI with polygraph, 5+ years software development experience with Java and/or Python, web frameworks, relational/NoSQL databases, Agile experience, and secure coding practices.
Java, Python, ArcGIS, GeoServer, OpenLayers, Leaflet, Cesium, Docker, Kubernetes, CI/CD
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Software Engineer
Denver or Springfield or Sterling or St. Louis
$82k-$172k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
5+ YOEBachelor's in CS or related, 5+ years software development experience, Java and/or Python proficiency, experience with web frameworks and databases, TS/SCI clearance with polygraph required, Agile and secure coding experience.
Java, Python, ArcGIS, GeoServer, OpenLayers, Leaflet, Cesium, Docker, Kubernetes, CI/CD
3w
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Experienced Product Security Engineer (Software) ***Signing Bonus Potential***
Berkeley or St. Louis
$128k-$174k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.
5+ YOE5+ years engineering experience, BS in relevant field, experience with military/defense customers, ability to obtain U.S. security clearance, knowledge of product security/anti-tamper and systems-level secure design.
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Software Developer Engineer (Experienced or Senior)
Hazelwood or Berkeley or Saint Louis
$127k-$217k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
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.
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Software Engineer I
Fenton, Missouri, United States
HybridFull Time
Maritz
Maritz: Provides business incentive, event, and loyalty management solutions.
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
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Software Development Engineer I
St. Louis, Missouri, United States
$76k-$129k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
1+ YOE1+ years JavaScript/TypeScript experience, bachelor's in CS/Math/GIS/STEM, strong OOP and software methodology knowledge, ability to maintain US security clearance, Python experience for geoprocessing preferred.
JavaScript, TypeScript, Python, HTML, CSS, Swift, Kotlin, ReactJS, Vue, Svelte, GIS, REST Web services, SQL, SQL Server, PostgreSQL, Oracle
17h
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Senior Software Developer
O'Fallon, Illinois, United States
$110k-$120k/yr OnsiteFull Time
ECS
ECSNYSE: ASGN: Provides advanced technology and engineering services to government agencies.
Bachelor's degree, Java web development, DevSecOps pipeline experience, Secret clearance, and Security+ certification or ability to obtain it immediately after employment.
Java, HTML5, Angular, Spring, RHEL, SQL, Oracle RDBMS, JavaScript, XML, WebLogic, Tomcat, Gradle, Maven, Ant, Python, DevSecOps, Linux, Windows, Apache, Docker, Kubernetes, Git, Jenkins, Artifactory, BASH, Perl, PowerShell, Ansible, Puppet, Chef, Terraform, JUnit, Selenium, Cucumber, Cypress, SonarQube, Fortify, Splunk, React JS, PL/SQL, Kanban, SCRUM, SAFe, DevOps, Jira
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Software Developer - Advanced (MO, Saint Louis)
St. Louis, Missouri, United States
OnsiteFull Time
RiVidium
RiVidium: Provides cybersecurity software and IT services to federal agencies.
Requires RMF knowledge, experience with Python, HTML, CSS, JavaScript, React, Tableau, database development, and secure full‑stack software development; baccalaureate degree required.
Python, HTML, CSS, JavaScript, React, Tableau
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Web Software Developer
Scott Air Force Base, Illinois, United States
$120k-$160k/yr OnsiteFull Time
SAIC
SAICNYSE: SAIC: Provides engineering, IT, and mission support services to government.
10+ YOE10+ years experience, DoD Top Secret with SCI eligibility, CompTIA Security+, experience with Node.js, React, Strapi, AWS, AppStream, Confluence, JavaScript, HTML, CMS, and technical writing.
Node.js, React, AppStream, Confluence, JavaScript, HTML, Strapi, AWS, ServiceNow, Jira, Microsoft Word, Microsoft PowerPoint, Microsoft Visio, Microsoft Project, Microsoft Excel
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Software Engineer - AI (Top Secret Clearance Required)
Alexandria or Chantilly or Gaithersburg or Saint Louis
OnsiteFull Time
North Point Technology
North Point Technology: Technology services and engineering for federal government missions.
Active Top Secret clearance (TS) required, bachelor’s in CS/Engineering, DoD 8570 IAT Level II/III (e.g., Security+), proficiency in Python, cloud (AWS) architecture, CI/CD, CloudFormation/Terraform, and database development.
Python, GitLab, Jenkins, AWS CloudFormation, Terraform, PostgreSQL, Zabbix, ACAS, Jira, Confluence, RocketChat, AWS, Windows, Linux
1mo
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Web Software Developer
Scott AFB, Illinois, United States
OnsiteFull Time
SAIC
SAICNASDAQ: SAIC: Provides government and defense clients with technology and engineering services.
10+ YOE10+ years experience, DoD Top Secret clearance with SCI eligibility, CompTIA Security+, Node.js/React/JavaScript/HTML, Strapi CMS, AWS, AppStream, Confluence, MS Office proficiency, technical writing, and configuration/change management for government customers.
Node.js, React, AppStream, Confluence, JavaScript, HTML, Strapi, AWS, Microsoft Word, Microsoft PowerPoint, Microsoft Visio, Microsoft Project, Microsoft Excel, ServiceNow, Jira
1w
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Senior Network Software Engineer
Scott AFB, Illinois, United States
$85k-$93k/yr OnsiteFull Time
I2X Technologies
I2X Technologies: Provides mission-critical engineering, cybersecurity, and IT services to government agencies.
4+ YOEActive U.S. citizenship, BS (or MS) with relevant experience, DoD 8750 IAT II/Security+ CE, BLS not required; Python, REST/JSON, Git, Linux experience, routing (BGP/OSPF/ISIS) and Cisco/Juniper familiarity.
Python, XML, Cisco Network Services Orchestrator (NSO), Cisco ASR9K, Juniper MX, REST, JSON, Git, Bitbucket, Linux, Cisco IOS XR, JUNOS, Cisco IOS, YANG, NETCONF, RESTCONF
2mo
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AI-Application Security Engineer
Saint Louis, Missouri, United States
OnsiteFull Time
Stifel
StifelNYSE: SF: Provides wealth management and investment banking services to clients.
2+ YOEBachelor's degree,2+ years information security or software development experience,knowledge of application and AI security,experience with SAST/DAST/SCA/API security,AWS,Python,C#,GitHub;CISSP/CSSLP/GIAC preferred.
C#, Angular, Python, AWS, GitHub, SAST, DAST, SCA, API, Mobile, AI Coding assistants, MCPs, CI/CD
4w
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ENGR SR SOFTWARE DEVT
Utah or Oklahoma or Dallas or Maine or Massachusetts or Wisconsin or South Dakota or Iowa or Montana or New Jersey or Delaware or Washington or New York or St. Louis or Ohio or North Carolina or Missouri or New Hampshire or Alabama or Rhode Island or Indiana or Georgia or South Carolina or Texas or Virginia or Kentucky or Kansas or Arizona or North Dakota or Montgomery County or Michigan or Vermont or Nebraska or Wyoming or Connecticut or Colorado or Mississippi or Idaho or New Mexico or Pittsburgh or Tennessee or Pennsylvania or Minnesota or West Virginia or Arkansas or Florida or New York or Maryland or Kansas City or Louisiana or Illinois
$106k-$146k/yr RemoteFull Time
Solventum
SolventumNYSE: SOLV: Provides medical technology and health information software solutions.
5+ YOE5+ years software development (or HS+10), experience with Java/C#/Python, SQL/NoSQL, cloud (AWS), web security, and large-scale applications; strong problem solving and Agile experience.
Java, C#, Python, SQL, NoSQL, AWS, Lambda, Step Functions, Linux
1mo
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Intermediate Software Developer
Scott Air Force Base, Illinois, United States
$100k-$105k/yr HybridFull Time
DecisionPoint
DecisionPoint: Provides IT and cybersecurity services for federal government agencies.
2+ YOEAbility to obtain Secret clearance, Associates degree with 2+ years experience, Security+ required, experience with .NET/C#/C++, cloud, unit testing with Moq/NSubstitute, Agile, and DevOps collaboration.
Moq, NSubstitute, .NET Framework, .NET, C#, C++, Oracle, AWS EC2, Java
1w
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Software Developer / Application & Web Support Lead
Scott Air Force Base, Illinois, United States
$110k-$140k/yr OnsiteFull Time
Computer World Services
Computer World Services: Provides IT modernization and cybersecurity solutions for federal government agencies.
5+ YOE5+ years SharePoint Online/web application development and sustainment experience; DoDM 8140.03 and residential privileged access qualification; DCWF Work Role 212 or equivalent; Security+ / GSSP / CSSLP preferred; experience with Power Platform, Nintex, Java/Oracle, ColdFusion, .NET/SQL; 508 accessibility experience.
SharePoint Online, Microsoft Power Platform, Power Apps, Nintex, Java, Oracle, ColdFusion, .NET, SQL, Power BI
1mo
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Principal Engineer - Systems
St. Louis, Missouri, United States
RemoteFull Time
Enterprise Mobility
Enterprise Mobility: Provider of vehicle rental and diverse mobility solutions.
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
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Manager, DTC Software Engineering
St. Louis or Boston
$122k-$183k/yr HybridFull Time
New Balance: Designs and manufactures athletic footwear, apparel, and sports equipment.
10+ YOE4+ Mgmt10+ years technical experience, 4+ years managing engineers, Bachelors in CS/IS or related, eCommerce experience preferred, strong engineering best practices and security knowledge.
HTTP, HTML, CSS, JavaScript, Node.js, .Net, C#, Java, PHP, REST, SOA, microservices, message queues, databases, Microsoft Azure, Salesforce Commerce Cloud, Confluence, Jira, Service Desk, Bitbucket
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Mobile Engineer - React Native
St. Louis, Missouri, United States
$90k-$176k/yr HybridFull Time
CGI
CGINYSE: GIB: Provides information technology and business consulting services.
10+ YOE10+ years software engineering experience, 5+ years React Native/JS/TypeScript, mobile architecture, offline-first, native Android/iOS skills, CI/CD and security, bachelor's degree preferred.
React Native, React, JavaScript, TypeScript, GraphQL, Firebase, GitHub Actions, Azure DevOps, Fastlane, Jenkins, Kotlin, Java, Swift, Objective C, AWS, Azure, Google Cloud
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Solutions Engineer – Investment Management Technology
Arizona or Tempe or Missouri or St. Louis or United States
RemoteFull Time
Edward Jones
Edward Jones: Offers investment management and financial planning through local branches.
10+ YOE10+ years software engineering with full-stack expertise; system design for scalable, secure cloud solutions (microservices); experience with relational and non-relational databases, operating production systems (monitoring/observability), and automated testing.
Java, Kubernetes, MongoDB, SQL Server, Oracle, Kafka, Azure Cloud, React, Node, Python, AI, DB2, COBOL, MQ, Dynatrace, Grafana