Job Description
Job Description
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
- Bachelor's degree in Computer Science, Information Systems, or a related field (or equivalent experience).
- 3+ years of experience in Linux/Unix system administration, with a focus on Red Hat Enterprise Linux.
- Deep understanding of FIPS 140-2/3 and NIST 800-53 compliance requirements.
- Expertise in Linux security hardening (SELinux, AppArmor, iptables).
- Proficiency in GitHub Flow, including branching, pull requests, and collaborative workflows for configuration management.
- Proficiency in automation tools (Ansible, Puppet, or Chef).
- Experience with scripting (Bash, Python, or Perl) for system administration tasks.
- Familiarity with virtualization (KVM, VMware) and containerization (Docker, Podman).
- Knowledge of networking protocols (TCP/IP, DNS, NTP) and storage (LVM, RAID).
- Strong troubleshooting skills and experience with log analysis (e.g., journalctl, rsyslog).
- Ability to obtain and maintain a DoD security clearance (US citizenship required).
Preferred Skills
- Experience with other Unix systems (CentOS, Ubuntu, or Solaris).
- Knowledge of DoD STIGs (Security Technical Implementation Guides) and RMF (Risk Management Framework).
- Familiarity with cloud-based Linux deployments (AWS EC2, Azure VMs).
- Understanding of high-availability clustering (Pacemaker, Corosync).
- Experience with compliance auditing tools (OpenSCAP, Nessus).
Certifications (Preferred but Not Required)
- Red Hat Certified Engineer (RHCE)
- Red Hat Certified Architect (RHCA)
- CompTIA Security+
- Certified Information Systems Security Professional (CISSP)
- GIAC Security Essentials (GSEC)
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:
- Email our Recruiter: jadabell@irystechnologies.com with job title in Subject line
- Mail to our corporate office:
- DTSI
212 N. Alamo St.
San Antonio, TX 78205
Attn: Recruiting - [job title]
- DTSI