Security Engineer Jobs in Arlington, VA
Security Engineer jobs in Arlington, Virginia are in strong demand across defense contracting, federal agencies, and cybersecurity firms, with work concentrated in the Rosslyn-Ballston corridor, Pentagon City, and Crystal City. Employers hiring right now include Amazon, Imagine One Technology & Management, and Amazon Web Services. Find a role that fits below and apply directly.
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We’re building a new security research team and looking for an engineer who combines practical security research with strong software development and automation skills.
You’ll contribute to triage, vulnerability analysis, PoC development, and reporting while building the LLM harnesses and research infrastructure that support the team’s work. Hands-on experience building or substantially extending an LLM or agent harness is required.
Pay Range $118,000 - $203,000
The pay range for this position is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, geographic location, and any applicable laws.
In this role, you will:
- Triage findings, reproduce vulnerabilities, and support root-cause analysis and PoC development.
- Build and maintain LLM harnesses that connect models with research tools, relevant context, and execution environments.
- Develop automation for code and binary analysis, experimentation, evidence collection, and report generation.
- Improve workflow reliability through logging, execution controls, reproducibility, and evaluations.
- Verify generated code and findings against observable system behavior.
- Maintain reusable scripts, research environments, and documentation.
- Work with researchers to turn useful investigation techniques into dependable tools.
You should bring:
- At least 3 years in security research, software engineering, security tooling, or closely related work.
- Bachelor’s degree in Computer Engineering, Computer Science, or a related technical field. Additional years of experience may substitute for degree.
- Demonstrated vulnerability analysis experience, including reproducing issues and understanding their root causes.
- Strong programming skills and experience building tools that other people can use and maintain.
- Practical experience building or substantially extending LLM harnesses, including tool integration and troubleshooting.
- Familiarity with reverse engineering, debugging, and PoC development.
- Clear technical writing and the ability to document evidence, assumptions, and limitations.
Preferred:
- Experience with sandboxed execution, fuzzing infrastructure, automated evaluations, or reproducible research environments would be valuable.
Security Clearance:
- Active Top Secret/SCI clearance.
- U.S. Citizenship is required.
We’re building a new security research team and looking for an engineer who combines practical security research with strong software development and automation skills.
You’ll contribute to triage, vulnerability analysis, PoC development, and reporting while building the LLM harnesses and research infrastructure that support the team’s work. Hands-on experience building or substantially extending an LLM or agent harness is required.
Pay Range $118,000 - $203,000
The pay range for this position is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, geographic location, and any applicable laws.
In this role, you will:
- Triage findings, reproduce vulnerabilities, and support root-cause analysis and PoC development.
- Build and maintain LLM harnesses that connect models with research tools, relevant context, and execution environments.
- Develop automation for code and binary analysis, experimentation, evidence collection, and report generation.
- Improve workflow reliability through logging, execution controls, reproducibility, and evaluations.
- Verify generated code and findings against observable system behavior.
- Maintain reusable scripts, research environments, and documentation.
- Work with researchers to turn useful investigation techniques into dependable tools.
You should bring:
- At least 3 years in security research, software engineering, security tooling, or closely related work.
- Bachelor’s degree in Computer Engineering, Computer Science, or a related technical field. Additional years of experience may substitute for degree.
- Demonstrated vulnerability analysis experience, including reproducing issues and understanding their root causes.
- Strong programming skills and experience building tools that other people can use and maintain.
- Practical experience building or substantially extending LLM harnesses, including tool integration and troubleshooting.
- Familiarity with reverse engineering, debugging, and PoC development.
- Clear technical writing and the ability to document evidence, assumptions, and limitations.
Preferred:
- Experience with sandboxed execution, fuzzing infrastructure, automated evaluations, or reproducible research environments would be valuable.
Security Clearance:
- Active Top Secret/SCI clearance.
- U.S. Citizenship is required.
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Find Security Engineer JobsSecurity Engineer Job Market in Arlington
Who's Hiring
- Amazon86
- Imagine One Technology & Management25
- Amazon Web Services18
- CoStar12
- Zermount12
Top Industries Hiring
- Technology & Software12
- Retail6
- Trucking6
- E-Commerce & Online Marketplaces6
Security Engineer Jobs in Arlington: Frequently Asked Questions
How do I get a security engineer job in Arlington?
Focus your search on defense contractors and federal agencies, which drive the majority of security engineer hiring in Arlington. The Rosslyn-Ballston corridor and Crystal City are the densest hiring zones. Clearance eligibility, hands-on experience with NIST frameworks, and familiarity with government compliance requirements like FedRAMP give candidates a clear edge over generalist applicants in this market.
Which companies hire security engineers in Arlington?
Arlington security engineer roles are posted by Amazon, Imagine One Technology & Management, and Amazon Web Services and others right now, based on current listings on Migrate Mate as of November 2026. Arlington's employer mix skews heavily toward defense primes, federal consulting firms, and government agencies with significant local footprints.
Are there remote security engineer jobs in Arlington?
Yes, though availability depends heavily on the role. Security engineering work tied to classified systems, physical infrastructure, or government facilities is almost always on-site, while cloud security, risk analysis, and application security roles are more remote-friendly. About 64% of security engineer openings tied to Arlington are remote or hybrid as of November 2026, with hybrid arrangements most common at commercial tech and consulting employers in the Rosslyn corridor.
How can I get a security engineer job in Arlington with little or no experience?
The most realistic entry path in Arlington is through IT support or systems administration roles at federal contractors, which often transition internally into security positions. Employers in Crystal City and Pentagon City regularly hire junior analysts and security operations center staff as feeder roles. Earning a CompTIA Security+ certification and pursuing internships with defense-adjacent firms or local government contractors significantly strengthens your candidacy for entry-level openings here.
Which industries hire the most security engineers in Arlington?
Arlington security engineer roles concentrate in Technology & Software, Retail, and Trucking, based on current listings on Migrate Mate as of November 2026. Arlington's proximity to the Pentagon, federal agencies, and major defense contract hubs makes it one of the densest markets in the country for security engineering tied to government and national security work.
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