63 security software engineer jobs at 31 companies in Xenia, OH
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Software Engineer
Beavercreek, Ohio, United States
$100k-$150k/yrOnsiteFull Time
KBRNYSE: KBR: Provides engineering, technology, and professional services for global markets.
3+ YOEBachelor's in engineering or computer science,3+ years software development experience for technical systems,proficiency in C#/C++ or Python,Linux experience,PNT familiarity,and ability to obtain DoD security clearance.
C#, C++, Python, Linux, HITL, SITL, GPS, GNSS, digital twin
Tangram Flex: Develops software integration tools for mission-critical defense systems.
3+ YOEBachelor's in a technical field, U.S. citizenship/ability to obtain DoD security clearance, 3+ years engineering/software development experience, deep proficiency in C/C++/Python, build systems (CMake, Waf), Git/GitLab, containerization (Podman), and up to 25% travel.
SentriLock: Provides electronic lockboxes and access software for real estate.
6+ YOECloud platform proficiency; cloud services experience; cloud security; scalability; Java Spring Boot and Node/NestJS; BS in CS or related field; 6+ years software development; 3+ years architect/design; 2+ years database optimization.
Java, Spring Boot, Node.js, NestJS, Google Cloud Platform, Cloud security, Relational databases
Skyline Scientific: Specialized engineering and analytical services for remote sensing systems.
10+ YOEBachelor's in STEM or equivalent, 10+ years of scientific/algorithm/software engineering experience, strong Python skills, familiarity with Git/GitLab/Bitbucket/Jira/Jenkins, U.S. citizenship and ability to obtain security clearance, comfortable working in classified environments.
Charlotte or Morrisville or Yellow Springs or Morton Grove
HybridFull Time
XylemNYSE: XYL: Manufacturer of water transport, treatment, and testing technologies.
7+ YOE7+ years software engineering experience; strong Java and Spring Boot skills; CI/CD and SDLC practices; identity and security fundamentals (OAuth2/OIDC, JWT); experience with Keycloak/Okta/Auth0/Entra ID preferred; strong communication.
Java, Spring Boot, OAuth 2.0, OIDC, JWT, Keycloak, Okta, Auth0, Entra ID, Angular, React, PKCE, SAML 2.0, CI/CD, API gateway
Stellar Science: Scientific software for advanced physics-based modeling and simulation.
3+ YOEMid level C++ software engineer with 3+ years experience; BS required, MS/PhD preferred; US citizen; willing to undergo background check; may travel to sites; security clearance a plus.
System Security Engineer/Software Engineer Lead (76414)
Columbus or Beavercreek
$110k-$140k/yrHybridFull Time
Battelle: Conducts scientific research and manages national laboratories for clients.
5+ YOEBachelor's in CS/CE/EE with 5+ years (or Master's with 3+), US citizenship, ability to obtain DoD Top Secret clearance, experience with microelectronic systems, security frameworks (NIST SP 800-53, MITRE ATT&CK), and scripting/version control.
Applied Research Solutions: Providing technical engineering and mission support to defense agencies.
5+ YOEUS citizen able to obtain Secret clearance; active Security+; 5+ years software development in classified or restrictive environments; proficiency with Golang, Python, Bash, PowerShell, JavaScript/Node, container tech, and PostgreSQL; strong documentation skills.
GE AerospaceNYSE: GE: Designs and manufactures jet engines and aerospace systems.
3+ YOEBachelor's in engineering, minimum 3 years software engineering experience, ability to obtain US government security clearance, expertise in control theory, embedded systems, signal processing, and proficiency in C/C++, Python, MATLAB/Simulink.
Atlanta or Woodland Hills or Mason or Denver or Mendota Heights
$113k-$177k/yrHybridFull Time
Elevance HealthNYSE: ELV: Provides health insurance plans and integrated healthcare services.
3+ YOEBA/BS in CS/IT or related, minimum 3 years experience, hands-on AI production engineering, experience with AI agents, cloud-native development, secure SDLC, and stakeholder collaboration.
Modern Technology Solutions: Independent engineering services providing high-demand technical expertise in cybersecurity, DoD systems, defense programs.
10+ YOETen years DoD experience; SAP/SCI experience; active Top Secret/SCI clearance; BS and MS in Electrical/Radar/Software/Microelectronics/Computer Engineering (MS preferred).
Modern Technology Solutions, Inc.: Provides engineering, technology, and cybersecurity services for national security.
15+ YOE15+ years DoD work; SAP/SCI in last 5 years; TS/SCI with SCI/SAP access; BS/MS in Electrical/ Radar/ Software/ Microelectronics/ Computer Engineering.
Leonardo DRSNASDAQ: DRS: Manufactures advanced electronic systems for defense and military applications.
2+ YOEBachelor's in engineering or equivalent experience, minimum 2 years' experience, U.S. citizenship required, active DoD security clearance or ability to obtain, competent technical expertise, and ability to work independently.
L3Harris TechnologiesNYSE: LHX: Aerospace and defense providing mission-critical technology solutions.
9+ YOE2+ MgmtRequires extensive embedded software experience (C/C++), RTOS, unit/integration/system testing, ability to define requirements and lead engineering efforts; ability to obtain US security clearance.
C, C++, Real-Time Operating Systems (RTOS), Python, Subversion, Windows, Linux, Ethernet, RS422, 1553, GigE Vision, CoaXPress, Camera Link, Board Support Packages (BSPs), Oscilloscope, DMMs, Earned Value Management (EVM)
Analytic Support/ Software Sustainment and Engineer
Quantico or Dayton
OnsiteFull Time
Quick Services: Provides specialized intelligence and security services to defense agencies.
5+ YOEBachelor's plus 5+ years in software engineering and sustainment including maintenance, databases, requirements analysis, defect triage, version control, scripting, test/validation, and secure environment experience. TS/SCI required.