Senior Linux Security Engineer - On-Prem Automation

Quantum Leap; Leesburg (VA); On-site; USD 190,000 - 205,000; Full time

Benefits offered by this job

6% 401(k) match

Educational assistance up to $7,000/yr

Insurance premium subsidy

3 weeks vacation + 11 holidays

Job summary

Quantum Leap in Leesburg, VA is seeking a mid- to senior-level Linux System Security Engineer to design, implement, and maintain security across our on‑premises infrastructure. The role emphasizes strong Linux and networking skills, scripting, and the ability to implement robust security measures.

You will audit systems, apply patches, automate tasks with Ansible, and harden configurations while staying current with emerging threats.

Qualifications

• B.S. in Computer Science, Computer Engineering or related field; minimum 10 years in security-focused roles.
• Strong understanding of security principles and best practices.
• Proven Linux administration and security tooling experience.

Responsibilities

• Design, implement, and maintain security practices across on-premises infrastructure.
• Audit systems for vulnerabilities, apply patches, mitigate risks.
• Automate security tasks using Ansible; develop security tooling.
• System hardening including kernel tuning and secure configurations.

Skills

Linux

Networking

Scripting

Ansible

Git

Elasticsearch/OpenSearch

Wazuh

Python

Shell

Security fundamentals

Communication

Teamwork

Education

B.S. in Computer Science/Engineering or related

Tools

Git

Elasticsearch/OpenSearch

Wazuh

Ansible

Fluent Bit/Fluentd

VMware/VirtualBox/Proxmox

Job description

Quantum Leap in Leesburg, VA is seeking a mid- to senior-level Linux System Security Engineer to design, implement, and maintain security across our on‑premises infrastructure. The role emphasizes strong Linux and networking skills, scripting, and the ability to implement robust security measures.

You will audit systems, apply patches, automate tasks with Ansible, and harden configurations while staying current with emerging threats.