248 sr security software engineer jobs at 125 companies in Maryland
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Sr. Software Engineer
Philadelphia or New Jersey or Delaware or New York or Maryland or Florida or South Carolina or Texas or Virginia or Georgia
HybridFull Time
FreedomPay: A fast-growing payments and commerce technology delivering secure solutions globally.
7+ YOE7+ years in application development and testing; strong web, SPA, and backend skills; security-focused; Agile experience; strong English communication.
IAMUS Consulting: Provider of specialized cybersecurity and IT engineering services.
SME-level full-stack engineer with expertise in React, Python (FastAPI/Django), AWS, containerization, Kubernetes, secure development, and technical leadership for DoD/IC programs.
Two Six Technologies: Develops cybersecurity and data systems for national security missions.
Active TS/SCI with polygraph, strong C/C++ and Python, experience with Ghidra/IDA Pro/Binary Ninja and QEMU for firmware reverse engineering and rehosting, ability to work onsite at Fort Meade/Linthicum.
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)
Nextonic Solutions: Provides scientific and technology development services to federal agencies.
Design and implement web, application, and database architecture; develop RESTful APIs and web applications; support accessibility, security, cloud migration, CI/CD, and enterprise integrations for government systems.
Visual Studio, MVC, .NET, C#, SQL Server Data Tools, Python, Web API, Bootstrap, Angular Js, Ajax, JavaScript, CSS, JQuery, JSON, ServiceNow, nVision, NBS
RealmOne: Provides advanced technology services for national security agencies.
15+ YOE15+ years software engineering experience, bachelor’s in computer science (or equivalent), active security clearance with polygraph, C++/Python/Shell experience, CI/CD and testing expertise.
CGINYSE: GIB: Provides information technology and business consulting services.
10+ YOE10+ years software engineering experience in Defense, BA/BS or equivalent experience, proficiency with C++, Java, Python, C#, secure coding and Defense standards, DoD cybersecurity certification preferred.
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.
Peraton: National security and mission-critical government technology services provider.
19+ YOEBachelor's degree in Engineering, Computer Science, Mathematics, or related field with extensive software engineering experience; cloud, Linux, Python; active TS/SCI with poly; ability to work at a customer site.
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
10+ YOETop Secret/SCI with polygraph required; US citizenship required; 10+ years related software engineering experience; Bachelor’s in Computer Science (or 4 years additional SWE experience); skills in computer/system security and HTML, CSS, JavaScript.
HTML, CSS, JavaScript, ITOM, ITSM, HRSD, CSM, Service Portal, Free and Open Source Software (FOSS), GOTS, COTS
ManTech: Provides technology solutions for defense and intelligence agencies.
11+ YOETS/SCI with poly required. 11–15+ years experience in systems security, software engineering, or computer science. Hands-on C/C++ or C#, ability to read Java, experience with software assurance tools and source code analysis.