80 security software engineer jobs at 42 companies in Mason, OH

PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
1mo
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Software Engineer
Dayton, Ohio, United States
HybridFull Time
Tangram Flex
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.
C, C++, Python, CMake, Waf, CMakeLists.txt, Git, GitLab, Podman, Containerfile, ZeroMQ, SSH, IPv4, TCP/UDP
2mo
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Software Engineer II - Cloud Engineer
West Chester, Ohio, United States
OnsiteFull Time
SentriLock
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
1mo
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Software Engineer, Senior
McLean or Dayton or Wright-Patterson AFB
OnsiteFull Time
Skyline Scientific
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.
Python, Windows, Linux, Git, GitLab, Bitbucket, Jira, Jenkins, PyTorch, TensorFlow, scikit-learn, NumPy, pandas, OpenCV, C, C++, Java, Rust, MATLAB, CI/CD
3mo
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Software Developer
Wright Patterson AFB, Ohio, United States
OnsiteFull Time
Torch Technologies
Torch Technologies: Provides research and engineering services to the defense industry.
8+ YOEU.S. citizenship; Bachelor's degree or 6 years of related experience in lieu; 8+ years software development; secure coding practices; cloud, containerization; TS/SCI clearance required or eligible.
Java, Python, Go, C#, AWS, Azure, Google Cloud, Docker, Kubernetes, Git, Terraform, CloudFormation, OWASP, RMF, Stig
1mo
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Senior Software Developer
Charlotte or Morrisville or Yellow Springs or Morton Grove
HybridFull Time
Xylem
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
2mo
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C++ Software Engineer (Dayton)
Dayton, Ohio, United States
HybridFull Time
Stellar Science
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.
Boost, Eigen, Linux, Windows, OpenSceneGraph, OpenGL, WebGL, MPI, OpenMP, Qt, git, Bitbucket, Jenkins, CMake, Python, Java, TypeScript
3w
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Software Developer
Beavercreek Township, Ohio, United States
RemoteFull Time
Applied Research Solutions
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.
Golang, Python, Bash, PowerShell, JavaScript, Node, Docker, Kubernetes, Podman, PostgreSQL
2mo
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Senior Software Engineer
Beavercreek, Ohio, United States
$150k-$200k/yr OnsiteFull Time
KBR
KBRNYSE: KBR: Provides engineering, technology, and professional services for global markets.
8+ YOEBachelor’s degree in computer or electrical engineering or related field; 8+ years software development experience; proficient in C/C++ or Python; Linux and Windows experience; strong PNT knowledge; able to obtain DoD security clearance.
C/C++, Python, Linux, Windows
4d
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Junior Cloud/Software Engineer
Dayton, Ohio, United States
OnsiteFull Time
Modern Technology Solutions
Modern Technology Solutions: A mission technology delivering cloud-native software and engineering services for defense and intelligence customers.
Bachelor's in CS/Software Engineering/Information Systems, foundational programming experience in Python or Java, familiarity with cloud-native concepts, REST/OpenAPI, Agile, and ability to obtain security clearance.
Python, Java, OpenAPI, JSON, Kubernetes, GitLab, CI/CD
3mo
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Software Developer
Wright-Patterson, Ohio, United States
OnsiteFull Time
Prescient Edge
Prescient Edge: Provides intelligence, security, and defense support services.
U.S. citizen; TS/SCI clearance; Bachelor's degree in engineering, computer science, or information technology; Angular experience; proficiency in Java, Python, SQL, PHP; AWS, Docker, Elasticsearch, Logstash, Kibana; able to lift 20-50 lbs; Security+ preferred.
Angular, Java, Python, SQL, PHP, AWS, Docker, Elasticsearch, Logstash, Kibana
2mo
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Principal Software Engineer
Cincinnati, Ohio, United States
OnsiteFull Time
Fifth Third Bank
Fifth Third BankNASDAQ: FITB: Provides retail, commercial, and wealth management financial services.
8+ YOE8+ years in software development with Java, REST, SQL; strong problem solving and collaboration; experience in agile and secure coding practices.
Java, Git, GitHub, REST, SQL
1mo
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Senior Software Engineer
Beavercreek, Ohio, United States
OnsiteFull Time
Parallax Advanced Research
Parallax Advanced Research: Conducts advanced research and develops technology for government and academic clients.
10+ YOEActive TS/SCI clearance, US citizenship, 10+ years software development, DevSecOps and AI/ML experience; cloud deployments; security focus.
Docker, Kubernetes, Jenkins, GitLab CI/CD, Terraform, Ansible, Security Scanning Tools, AWS, Azure, GCP, TensorFlow, PyTorch, OpenCV, LangGraph, CrewAI
1mo
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Advanced Lead Engineer - Software Lead
Evendale, Ohio, United States
OnsiteFull Time
GE Aerospace
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.
C, C++, Python, MATLAB, Simulink
1w
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AI-Native Software Engineer
Atlanta or Woodland Hills or Mason or Denver or Mendota Heights
$113k-$177k/yr HybridFull Time
Elevance Health
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.
GitHub Copilot, Cursor, Claude Code, ChatGPT, Codex-style agents, Amazon Bedrock AgentCore, AgentCore Runtime, Code Interpreter, Browser Tool, Observability, Evaluations
1mo
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System Security Engineer - SME
Wright-Patterson AFB, Ohio, United States
OnsiteFull Time
Modern Technology Solutions, Inc.
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.
1w
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Senior Software Engineer
Woburn or Arlington or Dayton
$134k-$184k/yr HybridFull Time
Systems & Technology Research
Systems & Technology Research: Develops advanced technology for national security and defense applications.
5+ YOEU.S. citizen able to obtain security clearance, BS in CS or related with 5+ years experience, 3+ years C++ or Java, strong algorithms/concurrency skills, EM practices, Agile, mentoring experience.
C++, Java, Python, JIRA, Confluence, Gitlab, ROS, TAK, MAVLINK
1mo
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Aptima Inc. (All Jobs) - Software Engineer, AI Systems
Dayton, Ohio, United States
$125k-$132k/yr OnsiteFull Time
Aptima
Aptima: Engineering human-centered technology solutions for national security.
3+ YOE3-5 years experience in AI/ML and software engineering; ability to obtain US Govt security clearance; strong Python, API/backend, Docker/Kubernetes; ML frameworks experience.
Python, Docker, Kubernetes, CI/CD, APIs, AWS, PyTorch, TensorFlow, LangChain
1mo
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Software Engineer (Beavercreek, OH, US, 45431)
Beavercreek, Ohio, United States
OnsiteFull Time
Leonardo DRS
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.
FRACAS, FMEA
3mo
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Professional Services Software Developer - Internship
Cincinnati, Ohio, United States
$35/hr RemoteInternship, Full Time
Prosource
Prosource: Business technology and managed IT services for Midwest companies.
0+ YOEActively pursuing a degree in Computer Science or Computer Engineering; experience with C#, JavaScript, and Microsoft SQL Server; Windows platforms; knowledge of network architecture and security; Scrum/Agile experience; strong communication skills.
C#, JavaScript, SQL Server, Windows, Scrum, Agile
3w
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Full stack Software Engineer, Senior
Dayton or Wright-Patterson Air Force Base
$87k-$198k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
6+ YOE6+ years full‑stack software engineering experience, cloud‑native architecture and delivery, Python/C++/Java/Spring Boot, SQL/NoSQL, AWS, Docker/Kubernetes, GitLab CI/CD, experience in secure/classified environments, active TS/SCI clearance, Bachelor’s in STEM.
Python, C++, Java, Spring Boot, PostgreSQL, DynamoDB, MongoDB, SQLite, AWS, Azure, Docker, Kubernetes, GitLab CI/CD, Kafka, NiFi, Elasticsearch, OpenSearch, Solr, FastAPT, REST, gRPC, GraphQL, Terraform, CloudFormation, LLMs, Codex, Claude Code, OpenCode, IaC