Linux / Unix Engineer

Linux / Unix Engineer

Irys Technologies is seeking a Linux / Unix Engineer in the Austin or San Antonio area with deep expertise in Red Hat Linux to support our secure, mission-critical systems for Department of Defense (DoD) clients. This position will be responsible for implementing and maintaining systems that comply with FIPS and NIST standards, ensuring robust security and performance for sensitive workloads. Proficiency in GitHub Flow is required for managing system configurations and scripts.

Project Duration : 4-6 Months

Workplace Type : Primarily Remote; In-office may be required on an as needed basis. If needed, the office is located in downtown San Antonio, TX.

Responsibilities

• Administer and secure Red Hat Enterprise Linux (RHEL) systems in production environments.
• Implement FIPS 140-2 / 3 and NIST 800-53 standards for DoD compliance.
• Configure and harden Linux systems using tools like SELinux, firewalld, and OpenSCAP.
• Automate system provisioning, configuration, and monitoring using Ansible, Puppet, or Bash, managed via GitHub Flow.
• Manage authentication and access control (e.g., SSSD, Kerberos, LDAP).
• Monitor system performance and security using tools like Nagios, Prometheus, or Splunk.
• Collaborate with security teams to conduct audits and remediate vulnerabilities.
• Document system configurations, compliance reports, and operational procedures.
• Provide on-call support for critical incidents (rotational basis).

Required Skills and Qualifications

Preferred Skills

Certifications (Preferred but Not Required)

Inclusion & Diversity

Irys Technologies is an Equal Opportunity / Affirmative Action Employer. Applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.

Disclosure

Irys Technologies is an equal opportunity employer that uses E-Verify to confirm work authorization. Background investigations may be conducted to determine applicant's eligibility for a Department of Defense security clearance.

EEOC Know Your Rights

If you are unable to use our online application to apply for this position, please use one of the following options to submit your resume and qualifications :

DTSI

212 N. Alamo St.

San Antonio, TX 78205

Attn : Recruiting - [job title]