542 sr security software engineer jobs at 260 companies in Westminster, MD
2mo
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Sr Software Developer
Annapolis Junction or Columbia
$174k-$220k/yr OnsiteFull Time
20+ YOEActive security clearance with FS Poly; 20+ years as a software engineer in similar scope, or 4+ years of experience
Java, PostgreSQL, Database design, RESTful API, Docker, Power BI, Python, Power Query M, MariaDB, Elasticsearch
1mo
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Sr. Software Developer
McLean, Virginia, United States
OnsiteFull Time
10+ YOEActive TS/SCI with polygraph required; bachelor\u0002s degree in CS/CIS/CE or equivalent; minimum 10 years software development experience; demonstrated expertise with AWS security, Linux, GitHub, IAM, and software development best practices.
Linux, AWS, S3, EC2, Apache Webserver, Apache Tomcat, Java, PHP, HTML, CSS, MySQL, JavaScript, Microsoft VS Code, GitHub, Bash Scripting, OAuth, IAM, RBAC, PAM, Enterprise Application Auditing Tool, Enterprise Application MFA Solution
2mo
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Senior AI Security Software Engineer
Pittsburgh or Arlington
OnsiteFull Time
5+ YOEBS/MS/PhD in CS, ML, cybersecurity, stats with 5-10 years; software engineering; containerization; security clearance eligibility; willingness to travel.
2mo
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Senior AI Security Software Engineer
Pittsburgh or Arlington
HybridFull Time
10+ YOEBS/MS/PhD in CS/ML/cybersecurity/statistics with years of experience; software engineering, containerization/microservices; travel; need DoD DoW security clearance.
Docker, Kubernetes, Microservices, Python, TensorFlow, PyTorch
1mo
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Sr. Software Engineer
Annapolis Junction, Maryland, United States
$100k-$200k/yr OnsiteFull Time
Applied Network Solutions: Providing cybersecurity and network engineering services for government agencies.
20+ YOE20 years SWE experience; Bachelor\u0002s in Computer Science (or 4 yrs additional SWE experience); required security certification (one of CompTIA Security+ CE, CCNA-Security, CySA+, GICSP, GSEC, CND, SSCP); Kubernetes, PKI, GitOps/CI/CD, Python, Bash, Linux, Jira/Confluence experience.
Kubernetes, PKI, GitOps, CI/CD, Linux, Python, Bash, Jira, Confluence
2w
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Sr. Software Engineer (Contract)
Arlington or Denver or Houston or Merritt Island or United States
RemoteContract
8+ YOEBachelor's in STEM (Masters preferred). 8 years' experience (6 with Masters) designing and developing embedded/aerospace software. Proficiency in C/C++. US citizenship and ability to obtain government security clearance required.
C, C++
1w
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(USA) Staff, Software Engineer, Information Security
Bentonville or Herndon
$110k-$264k/yr OnsiteFull Time
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
1d
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Sr Software Engineer - Columbia, MD
Columbia, Maryland, United States
$129k-$229k/yr HybridFull Time
SME-level full-stack engineer with expertise in React, Python (FastAPI/Django), AWS, containerization, Kubernetes, secure development, and technical leadership for DoD/IC programs.
React, JavaScript, TypeScript, Python, FastAPI, Django, AWS, Docker, Kubernetes, Terraform, Ansible, GitOps
6d
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Sr. Software Engineer -CTJ- Poly
Reston or Redmond
$120k-$235k/yr HybridFull Time
2+ YOE2+ years technical experience in software or systems engineering, experience with large distributed or air-gapped environments, Azure experience, ability to meet security screening and U.S. citizenship requirements.
Azure, Microsoft Cloud, AI
2mo
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Software Engineer - Senior (contingent 045)
Aberdeen Proving Ground, Maryland, United States
OnsiteFull Time
7+ YOESenior software engineer with DoD experience, specializes in biometric systems, secure coding, and Agile/DevSecOps.
Android, CI/CD, DevOps, DevSecOps, Security, Encryption
2d
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Software Engineer
McLean, Virginia, United States
$69k-$158k/yr OnsiteFull Time
6+ YOE6+ years software engineering/DevSecOps experience, GitHub Enterprise and Actions experience, Python or Go, Terraform/Pulumi, secret clearance required, knowledge of secure software supply chain and compliance frameworks.
GitHub Enterprise, GitHub Actions, Python, Go, Terraform, Pulumi, GitHub CLI, REST, GraphQL, OPA, Kyverno, SPDX, CycloneDX, Sigstore, Cosign, Dependabot, GitHub Advanced Security, SLSA, SSDF, NIST 800-218
1d
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Software Engineer
McLean, Virginia, United States
$69k-$158k/yr HybridFull Time
6+ YOE6+ years software engineering/DevSecOps experience, GitHub administration, GitHub Actions, Python or Go, Terraform/Pulumi, CI/CD and secure software supply chain knowledge, Secret clearance required.
GitHub Enterprise, GitHub Actions, Python, Go, Terraform, Pulumi, GitHub CLI, REST, GraphQL, OPA, Kyverno, SPDX, CycloneDX, Sigstore, Cosign
2w
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Sr Manager, Security Engineer, AWS Foundational & Hardware Security
Austin or Seattle or Arlington
$208k-$282k/yr OnsiteFull Time
10+ YOE10+ Mgmt10+ years hands-on security engineering and risk assessment, 10+ years managing teams, Bachelor's in Computer Science or related, strong communication and technical leadership skills.
Amazon Web Services, AWS
2mo
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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
3w
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Senior Embedded Security Software Engineer
Linthicum or Fort Meade
$129k-$193k/yr OnsiteFull Time
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.
Ghidra, Python, QEMU, IDA Pro, Binary Ninja, C, C++, Linux, Ghidra API, Binary Ninja API, JTAG, SWD, SDR
2mo
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Cybersecurity Software Engineer - Remote
Washington, District of Columbia, United States
$140k-$180k/yr RemoteFull Time
10+ YOE10+ years software engineering and cybersecurity with leadership; PKI, IAM, cryptography (PQC), confidential computing, zero trust, and cloud security; AWS/Azure security.
Java, Bouncy Castle, ACME, ServiceNow, DocuSign, Keyfactor, Ascertia, AWS, Azure, PKI, IAM, Confidential Computing, Zero Trust, Cloud Security, Post-Quantum Cryptography, PQC
2w
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Senior Software Engineer
Washington, District of Columbia, United States
$68-$113/hr OnsiteFull Time
10+ YOEMaster's degree in a technical discipline, 10+ years software engineering experience, advanced software architecture knowledge, lifecycle and testing experience, ability to obtain security clearance.
16h
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Senior Embedded Security Software Engineer
Maryland or Herndon or Linthicum
$130k-$190k/yr OnsiteFull Time
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)
3w
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Software Developer, Senior (Security Clearance Required)
Arlington or Pensacola
$119k-$203k/yr RemoteFull Time
10+ YOEActive security clearance and US citizenship required; 10+ years software development experience (Bachelor's+12 or Master's+10); 3+ years Python and AWS serverless; analytics and federal cybersecurity familiarity.
Python, AWS, Hadoop, Cloudera, Spark, Databricks, Power BI, Kibana, Splunk, Splunk Machine Learning (ML), Bash, PowerShell, Wireshark, tcpdump, Zeek, SiLK, YAF, Linux, Continuous Integration/Continuous Delivery (CI/CD)
3w
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Sr. Software Engineer/Technical Lead
Bethesda, Maryland, United States
OnsiteFull Time
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