121 security software engineer jobs at 62 companies in Elsmere, DE

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 - Senior (contingent 045)
Aberdeen Proving Ground, Maryland, United States
OnsiteFull Time
Systems Products and Solutions
Systems Products and Solutions: Provides aviation and ground sustainment services for defense agencies.
7+ YOESenior software engineer with DoD experience, specializes in biometric systems, secure coding, and Agile/DevSecOps.
Android, CI/CD, DevOps, DevSecOps, Security, Encryption
1mo
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Software Engineer - Senior (contingent 045)
Aberdeen Proving Ground, Maryland, United States
OnsiteFull Time
Systems Products and Solutions: Provides logistics and technical services to defense agencies.
7+ YOESenior software engineer with DoD biometric systems experience; security clearance required; Agile/DevSecOps; Android apps; cybersecurity.
Android, DevOps, DevSecOps, CI/CD, Security testing, Encryption
2mo
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Software Engineer for Security and Platform Services
Mount Laurel, New Jersey, United States
$91k-$172k/yr HybridFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
2+ YOEBS in Computer Science/Engineering/Information Sciences required, 2+ years software development experience, proficiency in Java and/or C++, Linux development, software design/testing, ability to obtain Secret clearance and travel occasionally.
Java, C++, Linux, JIRA, GitLab, Jenkins, Maven, Ansible, Robot, Git, Bitbucket, Artifactory, Kubernetes, Rancher, Docker, Podman, SysML, UML
1mo
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Senior Software Engineer
Arlington or Mount Laurel or San Diego or Fall River
$135k-$273k/yr HybridFull Time
Innovative Defense Technologies
Innovative Defense Technologies: Develops automated software and systems to rapidly deliver mission-critical capabilities to U.S. government customers.
7+ YOEBachelor's degree or equivalent, 7+ years software engineering experience, able to obtain/maintain Secret U.S. security clearance, experience leading/mentoring, expertise in SDLC, OOP, distributed systems, secure coding, testing, and integration.
SDLC, Service-Oriented Architecture (SOA), AI, Generative AI
1mo
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Software Engineer - PM C2T
Aberdeen, Maryland, United States
$130k-$170k/yr OnsiteFull Time
JANUS Research Group
JANUS Research Group: Provides specialized engineering and technical services for defense organizations.
10+ YOE10+ years software engineering experience, active Secret clearance, bachelor’s in CS/Software Engineering or equivalent, proficiency in C++, Java, or Python, secure coding and networking knowledge, strong communication skills.
C++, Java, Python, VENOM
1mo
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Lead Software Engineer
Newark, Delaware, United States
$128k-$201k/yr OnsiteFull Time
Hologic
HologicNASDAQ: HOLX: Develops medical technology for women's healthcare and diagnostics.
6+ YOE6+ years software engineering experience building cloud and edge systems; experience in regulated environments, secure development practices, QMS familiarity, AI integration, Agile and version control proficiency; degree in CS/SE/STEM.
Microsoft Azure, Google Cloud Platform (GCP), Agile
3mo
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Lead Software Engineer
Plano or Wilmington
OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
5+ YOE5+ years software engineering experience; microservices with Python, Docker, Kubernetes; SDLC, CI/CD, security; mentoring; AWS and ML/AI tooling.
Python, Docker, Jenkins, Python-Streamlit, SQL, JSON, Kubernetes, AWS EMR, AWS EC2, AWS RDBMS, PostgreSQL, Oracle, Apache Spark, Pyspark, TensorFlow, GitHub Copilot
1mo
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Software Engineer I
Moorestown, New Jersey, United States
OnsiteFull Time
Data Intelligence
Data Intelligence: Provides engineering and cybersecurity solutions for federal government clients.
0+ YOEBachelor’s degree in engineering or computer science; 0-2 years software development; strong problem-solving; team player; US citizen with interim or active security clearance (secret or higher).
1mo
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Radio Services Software Engineer
Aberdeen Proving Ground, Maryland, United States
$150k-$174k/yr OnsiteFull Time
Sigmatech
Sigmatech: Provides specialized engineering, technical, and programmatic support for government agencies.
10+ YOEBachelor's in CS/SE (or equivalent experience), 10+ years software engineering with 3+ years on DoD communications, proficiency in C++, Java, or Python, secure coding and networking protocols knowledge, active DoD Secret clearance.
C++, Java, Python, VENOM, Agile, DevSecOps
3mo
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1650 - Software Developer
Belcamp, Maryland, United States
$83k-$140k/yr OnsiteFull Time
Sigma Defense: Develops tactical communications and intelligence systems for defense.
10+ YOE10+ years in software development; 5+ years DoD software support; strong requirements analysis, architecture, and coding skills; Java, Python, C#, and JavaScript; ability to document software; U.S. citizen; Secret security clearance or higher; Bachelor's Science degree.
Java, Python, C#, JavaScript
2d
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Principal Software Engineer
Moorestown, New Jersey, United States
$128k-$218k/yr OnsiteFull Time
ASRC Federal
ASRC Federal: Provides engineering and IT services to federal government agencies.
8+ YOEAbility to obtain security clearance, 8+ years software development experience in real-time/embedded environments, proficiency with Java/C++/Python, Linux/UNIX, Agile, and IDEs such as Eclipse.
Java, C++, Python, Linux, UNIX, Eclipse, Clearcase, JIRA, xUnit, Junit, CPPUnitLite, UML
2w
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Senior Software Engineer
Lake Forest or Houston or Philadelphia
$124k-$207k/yr HybridFull Time
AVEVA
AVEVA: Industrial software for engineering and operational performance management.
Strong software development in C# (.NET) or Node.js; hands-on Microsoft Azure cloud experience; CI/CD, DevOps, container experience; knowledge of cloud architecture, networking, and secure development practices.
Microsoft Azure, C#, .NET, Node.js, CI/CD
2mo
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Software Applications Engineer
Aberdeen Proving Ground, Maryland, United States
$115k-$130k/yr HybridFull Time
Entarian
Entarian: Provides mission-critical engineering and technology solutions for government agencies.
5+ YOEDoD Secret clearance; BS in computer science or related field; 5+ years in software applications engineering; strong .NET/C#, MudBlazor, HTML/CSS/JavaScript; API development; Azure/DevOps; security+; hybrid role near Aberdeen Proving Ground, MD.
C#, .NET, MudBlazor, HTML, CSS, JavaScript, OpenXml, ASP.NET Core, Entity Framework Core, SQL, Azure, DevOps, OpenID Connect, OAuth 2.0, Microsoft Entra ID
2mo
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Software Engineer
Aberdeen, Maryland, United States
$85k-$190k/yr OnsiteFull Time
LufCo
LufCo: Provides specialized engineering and analytic services for defense missions.
Open to all levels; Go, APIs, distributed systems, back-end focus; security-aware; must provide code portfolio link.
Go, Docker, PostgreSQL, MySQL, MongoDB, REST, Git
4w
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Software Engineer - Cloud Infrastructure
King of Prussia, Pennsylvania, United States
$90k-$190k/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 engineering/DevOps, proficiency in Python/Go/Java/C++ and Bash, Kubernetes and Helm experience, cloud (AWS/GCP/Azure), CI/CD (GitLab/Jenkins/GitHub Actions), active TS/SCI with Polygraph, IAT Level II/III (e.g., CompTIA Security+, CISSP, CASP+).
Kubernetes, Helm, Argo CD, GitLab, Jenkins, GitHub Actions, Python, Bash, Docker, Podman, Terraform, CloudFormation, Prometheus, Grafana, AWS, GCP, Azure
2mo
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Software Engineer - RF Electronic Warfare Systems
Aberdeen Proving Ground, Maryland, United States
$112k-$179k/yr OnsiteFull Time
Peraton
Peraton: Provides advanced technology and mission support for government agencies.
5+ YOE RF EW concepts, software-defined radios, Python/MATLAB/C+/VHDL, Linux, security clearance required.
Python, MATLAB, C+, VHDL, GNU Radio, Linux, Software-Defined Radios
1mo
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Principal Software Engineer, Field Engineering
Aberdeen Proving Ground, Maryland, United States
$160k-$220k/yr OnsiteFull Time
Raft
Raft: Builds AI and data platforms for U.S. national defense.
5+ YOE5+ years hands-on software engineering; active Secret clearance; backend Go/Java/Rust; DevSecOps; Kubernetes; Bash/Python; Army-domain knowledge; customer-facing; Security+ readiness; willing to relocate to APG.
Go, Java, Rust, Kubernetes, Helm, CI/CD, Infrastructure as Code, Bash, Python, RMF
3mo
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Senior Software Developer
Aberdeen, Maryland, United States
$104k-$181k/yr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
5+ YOEDesign, develop, and implement software across multiple languages; lead components; troubleshoot; mentor and guide developers; ensure secure, maintainable results. Must be a US citizen with SECRET clearance.
Python, C++, Java, C#, Go, Docker, Kubernetes, CI/CD
1w
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Senior Cyber Security Engineer (DevSecOps)
New York or Dallas or Boston or Minneapolis or Wayne
$150k/yr OnsiteFull Time
ECI
ECI: Managed IT and cybersecurity services for financial institutions.
2+ YOE2+ years professional software experience, strong Python development, Elastic Stack, CI/CD, infrastructure-as-code, Git, Docker/Kubernetes, and security detection/response knowledge.
Python, Elastic Stack, Elasticsearch, Logstash, Beats, Kibana, Terraform, Ansible, Git, GitHub, Docker, Kubernetes, SIEM, Splunk, Microsoft Sentinel, SOAR, MISP, Sigma, AWS, Azure, MITRE ATT&CK
3mo
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Software Engineer - Level III
Aberdeen Proving Grounds, Maryland, United States
$108k-$162k/yr OnsiteFull Time
Augustine Consulting
Augustine Consulting: Provides technical and engineering services to the US Department of Defense.
5+ YOESecurity clearance required; US citizenship; multiple education paths with experience; strong web development skills.
HTML, CSS, JavaScript, Python, PHP, SQL, Photoshop, Dreamweaver