Computer Science Engineer Jobs in Houston, TX (NOW HIRING)

Job Summary:
CACI International Inc is seeking an experienced Computer Systems Engineer to support NASA's human-rated spacecraft systems at Johnson Space Center. The role involves managing and securing computing environments, providing user support, and ensuring compliance with cybersecurity standards.
Responsibilities:
• Independently design, implement, configure, secure, and maintain the full infrastructure stack supporting systems, including firewall, VPN, network switch, DNS, DHCP, and Linux end client configurations.
• Support the full lifecycle of end-user and server systems, including procurement, operating system installation, security hardening, application deployment, and asset tracking.
• Provide hands-on end-user support as needed, including troubleshooting, system fixes, and configuration updates to meet mission and project needs.
• Coordinate with NASA service provider organizations to integrate and utilize enterprise services, including identity management, security services, and networking.
• Configure and manage network infrastructure, including firewalls, VPNs, switches (Cisco or comparable), hardware testbeds, development labs, and isolated environments supporting spacecraft and simulation development.
• Perform cybersecurity posture assessments, implement remediations, and ensure compliance with selected controls from NIST SP 800-53 Rev 5.
• Develop, update, and maintain required cybersecurity documentation, including system security plans, network diagrams, interconnection agreements, disaster recovery plans, risk assessments, and incident documentation.
• Design and implement system baselines and configurations that support mission-critical development while meeting NASA security and operational requirements.
Qualifications:
Required:
• Bachelor of Science degree in Computer Engineering, Computer Science, Computer Information Systems, Cybersecurity, or related disciplines required.
• Minimum of 5 years of hands-on experience in Linux system administration (RHEL and/or Ubuntu), networking, and cybersecurity tasks in a customer-oriented, fast-paced technical environment. Greater experience is valued.
• Strong working knowledge of computer systems architecture including operating systems, networking, storage, firewalls, VPNs, and cybersecurity concepts. Ability to document system configurations, processes, and architecture clearly and accurately.
• Effective written and verbal communication skills, with the ability to collaborate with technical teams, NASA stakeholders, and service provider organizations. Ability to work independently, manage multiple technical tasks, and adapt to changing requirements in a dynamic environment.
• Proficiency with standard technical tools and workflows, and familiarity with ticketing, tracking, or project coordination tools (e.g. Jira, ServiceNow, or similar).
Preferred:
• Master of Science degree in Computer Engineering, Computer Science, Computer Information Systems, Cyber Security, or Graduate level coursework or research involving information systems or cyber security.
• Experience with NASA, DoD, or federal government security compliance frameworks, including FISMA, NIST SP 800-53, and related cybersecurity documentation and assessment processes.
• Project management skills or Project Management Professional certification.
• Relevant IT certifications such as ITIL, Cisco, Red Hat, VMware, ISC2, or SANS.
• Scripting or software automation skills using Bash, PowerShell, Python, or similar languages; familiarity with Git version control.
• Experience writing technical documentation and maintaining knowledge bases or configuration repositories.
• Experience working with software development teams and/or administering software development tools such as GitLab, GitHub, Jenkins, Jira, and Docker/Podman.
• Experience with any of the following is a plus: Service Now, Jira, Confluence, Microsoft Active Directory, Microsoft Group Policy, Puppet, Ansible, PowerShell, Tenable SecurityCenter, HCL BigFix, Splunk, GitLab Continuous Integration, Jenkins, Apache web server, Nginx, Elasticsearch, PostgreSQL.
• Experience in the NASA/JSC environment or other highly technical, engineering-focused environments.
Company:
At CACI International Inc (NYSE: CACI), our 27,000 talented and dynamic employees are ever vigilant in delivering distinctive expertise and technology to meet our customers’ greatest challenges in national security. Founded in 1962, the company is headquartered in Arlington, USA, with a team of 10001+ employees. The company is currently Late Stage.