78 sr security software engineer jobs at 46 companies in Hagerstown, MD
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(USA) Staff, Software Engineer, Information Security
Bentonville or Herndon
$110k-$264k/yrOnsiteFull Time
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
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.
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)
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
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
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.
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.
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.
Senior Software Development Engineer, Engagement Security
Herndon or Seattle
$168k-$227k/yrOnsiteFull Time
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.
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.
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.
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.
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.
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.
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.
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.
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.
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
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.
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.