On-Site Senior Cyber Infrastructure Engineer | Auto & SecOps

i3, LLC; Chantilly (VA); On-site; USD 130,000 - 170,000; Full time

Job summary

i3, LLC is seeking a Senior Cyber Infrastructure Engineer to design, build, and maintain secure, automated environments for cybersecurity operations in Chantilly, VA. This role focuses on incident response tooling, threat analysis, and scalable testing environments tailored to mission needs.

The ideal candidate has 8+ years in cybersecurity or infrastructure automation, strong programming skills, and experience with CI/CD, data pipelines, and secure system design.

Qualifications

• 8+ years of experience in relevant fields.
• Experience with virtualized environments and secure system design.
• Strong programming skills in automation languages.
• Experience with CI/CD and version control.
• Knowledge of secure data flows and encryption.
• Excellent troubleshooting and collaboration.

Responsibilities

• Design and maintain multi-platform virtualized environments for testing and security operations.
• Build custom utilities, automation scripts, and data processing tools for rapid cyber response.
• Develop secure data ingest pipelines and integrate tools across systems.
• Implement CI/CD pipelines and standardize version control practices.
• Support secure posture development and ensure reliability and scalability.
• Mentor teammates and drive cross-team standardization and process improvements.

Skills

Cybersecurity engineering

Infrastructure automation

Software engineering

CI/CD pipelines

Tools

PostgreSQL

Redis

Splunk

Cribl

Job description

i3, LLC is seeking a Senior Cyber Infrastructure Engineer to design, build, and maintain secure, automated environments for cybersecurity operations in Chantilly, VA. This role focuses on incident response tooling, threat analysis, and scalable testing environments tailored to mission needs.

The ideal candidate has 8+ years in cybersecurity or infrastructure automation, strong programming skills, and experience with CI/CD, data pipelines, and secure system design.