78 sr security software engineer jobs at 46 companies in Hagerstown, MD

1w
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(USA) Staff, Software Engineer, Information Security
Bentonville or Herndon
$110k-$264k/yr OnsiteFull Time
Walmart
WalmartNYSE: WMT: Multinational retail operating discount stores and supermarkets.
4+ YOEBachelor's degree and 4 years of software engineering experience, or 6 years of experience. Requires Python, CI/CD, identity platforms, cybersecurity, risk analysis, and secure software development expertise.
Python, Microsoft Entra Identity, Okta Identity, FIDO2, YubiKey, Passkeys, Windows Hello for Business, Platform SSO, Conditional Access, CI/CD, WCAG 2.2 AA
1mo
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Senior Embedded Security Software Engineer
Herndon, Virginia, United States
$129k-$193k/yr OnsiteFull Time
Two Six Technologies
Two Six Technologies: Develops cybersecurity and data systems for national security missions.
Experience in embedded systems, firmware reverse engineering, C/C++ and Python development, familiarity with Ghidra/IDA/Binary Ninja and QEMU, active Top Secret clearance and ability to obtain TS/SCI, ability to work onsite in Herndon, VA.
Ghidra, Python, QEMU, IDA Pro, Binary Ninja
18h
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Senior Embedded Security Software Engineer
Maryland or Herndon or Linthicum
$130k-$190k/yr OnsiteFull Time
GrammaTech
GrammaTech: A software technology developing tools for embedded systems, reverse engineering, and cybersecurity.
Requires low-level C/C++ development, Python scripting in Linux, firmware reverse engineering, control-flow analysis, and embedded binary rehosting with QEMU. Top Secret/SCI clearance required for Herndon; polygraph required in Maryland.
C, C++, Python, Linux, Ghidra, IDA Pro, Binary Ninja, QEMU, Ghidra API, Binary Ninja API, JTAG, SWD, Software Defined Radio (SDR), Real-Time Operating Systems (RTOS)
1mo
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Sr Full Stack Software Developer
Denver or Sterling
$82k-$172k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
5+ YOEActive TS/SCI clearance with polygraph preferred, 5+ years software development, proficiency in Java and JavaScript, Linux experience, willingness to obtain Security+; Bachelor's in CS or accredited bootcamp required.
Java, JavaScript, Linux, Kubernetes, Elasticsearch, Java Spring Boot framework, AWS, WebSocket's, RESTful API
1mo
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Sr Full Stack Software Developer
Denver or Sterling
$82k-$172k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOEActive TS/SCI clearance (polygraph preferred), 5+ years software development, proficiency in Java and JavaScript, Linux experience, bachelor's in CS or coding bootcamp, Security+ (or willingness), cloud and microservice experience.
Java, JavaScript, Linux, Kubernetes, Elasticsearch, Spring Boot, AWS, WebSocket, RESTful API
2mo
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Expert Software Engineer
Herndon or Columbia
HybridFull Time
Freedom Technology Solutions Group
Freedom Technology Solutions Group: Provides geospatial and software engineering solutions for national security agencies.
5+ YOEFrontend-focused software engineer with Angular, JavaScript/TypeScript, and UI experience; security clearance required; 5+ years of relevant experience or 8+ years with BS; strong collaboration and DevOps mindset.
Angular, JavaScript, TypeScript, CSS, HTML, Node.js, NPM, Linux, Bash, Jasmine, Selenium, Cypress, Python, Flask, Django, Tableau, Pandas, D3.js, PDF.js
1mo
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Senior Software Engineer
Rockville or Tysons
$112k-$203k/yr HybridFull Time
FINRA
FINRA: Regulates brokerage firms and exchange markets in the United States.
5+ YOEBachelor's in CS or related (or equivalent experience) with 5+ years experience, system design, OOP, cloud, data storage, performance tuning, DevOps/CI/CD, test automation, and software security.
DevOps, CI/CD
1mo
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Principal Software Engineer
Ashburn, Virginia, United States
HybridFull Time
Cubic
Cubic: Develops defense training systems and public transit fare technology.
8+ YOE8+ years embedded software experience (or 6+ with MS), strong C and C++, embedded systems and debugging, Unix/Linux proficiency, unit testing, ability to work with hardware teams; eligible for DOD security clearance.
C, C++, Unix, Linux, yocto, JIRA, Confluence, Git
2w
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Senior Software Development Engineer, Engagement Security
Herndon or Seattle
$168k-$227k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
5+ YOE5+ years professional software development with programming, system design/architecture, mentoring/tech lead experience; experience with Linux, cloud platforms, AI/ML and on-call operations.
PyTorch, TensorFlow, Python, BERT, GPT-2, GPT-3, Linux, AWS
2mo
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Embedded Software Engineer - Cybersecurity
Carlsbad or Germantown
$141k-$222k/yr HybridFull Time
Viasat
ViasatNASDAQ: VSAT: Provider of global satellite-based connectivity and secure communication solutions.
8+ YOE8+ years software engineering; strong C/C++ on Linux; encryption; OpenSSL; Linux security; Bash/Python/Lua; Agile/Perforce/Git; mentor; BS in CS/Engineering; hybrid Carlsbad; Active Secret Clearance.
C, C++, OpenSSL, Linux, Bash, Python, Lua, Perforce, Git, CI/CD, Agile
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Software Engineer IV
Herndon, Virginia, United States
OnsiteFull Time
VTG
VTG: Provides force modernization and digital transformation for defense agencies.
7+ YOE2+ MgmtLead a small engineering team; experience with Java, Python, SQL, Shell, Unix/Linux, Kubernetes/OpenShift; 7+ years relevant experience; TS/SCI with CI poly required; Security+ preferred.
Kubernetes, OpenShift, Java, Python, SQL, Shell Script, Unix, Linux, JavaScript, NiFi
2mo
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Embedded Software Engineer - Cybersecurity
Carlsbad or Germantown
$141k-$222k/yr HybridFull Time
Viasat
ViasatNASDAQ: VSAT: Provides global satellite broadband and secure networking communication services.
8+ YOE8+ years software engineering experience with C/C++ on Linux, encryption/OpenSSL, Linux security controls, Bash/Python/Lua scripting, Git/Perforce, and an active US Secret Clearance; bachelor’s degree or equivalent.
C, C++, OpenSSL, Linux, Bash, Python, Lua, Perforce, Git, Docker, Podman, LXC, JSON, TLS, IPsec, ARM, Power, x86
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Senior Software Engineer
Germantown, Maryland, United States
$107k-$145k/yr OnsiteFull Time
Leonardo DRS
Leonardo DRSNASDAQ: DRS: Manufactures advanced electronic systems for defense and military applications.
5+ YOEBachelor's in engineering, 5+ years experience, fluency in Rust/C/C++, strong Linux and networking skills, Docker, microservices, Git/Jenkins, ability to lead, U.S. citizenship and active/obtainable DOD security clearance.
Rust, C, C++, Linux, Docker, NATS, Kafka, MQTT, gRPC, Git, Jenkins
1mo
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Software Engineer
Sterling, Virginia, United States
$133k-$226k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
6+ YOEBachelor's in STEM and 6+ years experience, Security+ CE, MBSE experience, DevOps tooling (Git, Jenkins, GitLab), cloud (AWS/Azure), containerization; clear communication skills and ability to obtain Top Secret/SCI with polygraph.
Git, Jenkins, GitLab, AWS, Azure, Docker, Kubernetes, Sonatype, SonarQube, JUnit, ServiceNow
3d
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Lead, Software Engineer (42068)
Herndon, Virginia, United States
$135k-$251k/yr OnsiteFull Time
L3Harris Technologies
L3Harris TechnologiesNYSE: LHX: Aerospace and defense providing mission-critical technology solutions.
9+ YOE2+ MgmtBachelor's degree (or equivalent experience) with ~9+ years experience, 2+ years software leadership, 5+ years C/C++ development, ability to obtain US security clearance, EM/estimation and earned-value experience.
C, C++, Linux, Python, Java, U-Boot, DO-178C
2mo
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Senior Software Developer
Herndon, Virginia, United States
OnsiteFull Time
VTG
VTG: Provides engineering and digital modernization solutions for national security.
6+ YOETop Secret/SCI with Poly, 6+ years in software development, BS in CS/Info Security or related field, proficient in .NET/C#/WPF/XAML/C++, ASP.NET Web API, HTML/CSS, Python, PowerShell; Windows apps/services/web services on IIS; AWS/Azure; GitHub/Jira/Jenkins/Confluence; STS/DataHound; PowerBI; Windows admin/troubleshooting; SDLC and IIS deployments.
.NET, C#, WPF/XAML, C++, ASP.NET Web API, HTML/CSS, Python, PowerShell, IIS, AWS, Azure, GitHub, Jira, Jenkins, Confluence, Secure Token Service, DataHound, PowerBI
3d
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Senior Software Engineer
United States or Westminster or Herndon
$128k-$216k/yr RemoteFull Time
Vantor
Vantor: Providing AI-powered spatial intelligence and high-resolution Earth observation.
6+ YOEU.S. citizen with active Top Secret security clearance or CBP/DHS suitability, bachelor\u0002s degree or equivalent experience, 6+ years development experience with strongly-typed and scripting languages, agile experience, and ability to lead technical efforts.
Java, Rust, Python, JavaScript, TypeScript, Jira, Confluence, git, Apache Flink, Apache Kafka, React, Next, Leaflet, Map Libre, Redux, AWS, Azure, Google Cloud, OpenStack, Kubernetes, Docker, Jenkins, ArgoCD, Harness, GitLab CI, GitHub Actions, PostgreSQL, Apache Iceberg
1mo
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Senior Principal Lead Software Engineer (Onsite)
Sterling, Virginia, United States
$146k-$277k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
10+ YOEActive and transferable Secret U.S. security clearance required. STEM degree with 10+ years' relevant experience (or advanced degree with 7+ years). Experience with Agile (Scrum/SAFe), Earned Value (EV)/CAM, CI/CD, and deploying software; lab/on-site work required.
Scrum, SAFe, Earned Value (EV), CI/CD, CORE Simulation (CORESIM), Ansible, Terraform, Python, Bash, PowerShell, RESTful APIs, Linux, Windows
2w
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Senior DoD Product Security Engineer
Clarksburg, Maryland, United States
OnsiteFull Time
Forterra
Forterra: Develops autonomous ground vehicle systems and software for defense.
5+ YOEHands-on RMF/ATO experience, 5+ years security engineering, knowledge of NIST/STIGs/eMASS, hardware and software security, secure-SDLC and SBOMs, US Person and eligible for security clearance.
NIST 800-37, NIST 800-53, NIST 800-171, DISA STIGs, eMASS, SAST, DAST, SBOM, CI/CD, C, C++, Python, ARM, x86, FIPS 140-3, TPM, HSM
18h
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Software Engineering, Advisor
Herndon, Virginia, United States
$86k-$138k/yr OnsiteFull Time
Peraton
Peraton: Provides advanced technology and mission support for government agencies.
3+ YOERequires Security+ certification, active clearance or ability to obtain Public Trust, U.S. citizenship, and experience in software design, development, and system installations. Experience varies by degree: 3–12 years.
operating systems, compilers, assemblers