Infrastructure & support
// SYSTEMS_THAT_STAY_USEFUL
Supporting users, endpoints, identity, networks, and the operational details that keep an organization moving.
// PROFESSIONAL PROFILE
Technical work withoperational purpose.
I'm Cristian Estrada—a bilingual IT professional who works across infrastructure, cybersecurity, automation, and the people who depend on those systems every day.
// AREAS OF PRACTICE
Useful technology is owned end to end.
I work best where technical depth, communication, and practical follow-through matter equally.
Security operations
// PRACTICAL_RISK_REDUCTION
Working across access control, endpoint protection, event review, CJIS-aligned processes, and clear escalation paths.
Automation & AI
// LESS_REPETITION_MORE_SIGNAL
Building PowerShell utilities, RAG systems, and document-centered workflows that reduce friction without losing human review.
$ cristian --profile
IT OPERATIONS
CYBERSECURITY
AUTOMATION
PROJECT DELIVERY
// EXPERIENCE
Built in environments where the work has consequences.
A progression from hands-on support and infrastructure into security-minded operations, automation, and cross-functional delivery.
Cameron County District Attorney's Office
IT Analyst
Supporting a law-enforcement environment across endpoint security, Active Directory, executive support, technical troubleshooting, process documentation, and automation for high-volume operational work.
- CJIS
- PowerShell
- Cortex XDR
- iboss
- Active Directory
America Ship
Network Technician
Worked across network troubleshooting, server access, segmented infrastructure, backups, endpoint support, and the everyday reliability needs of a working business.
- Networking
- Windows Server
- VLANs
- Wireshark
- Backups
The University of Texas Rio Grande Valley
Desktop Support
Supported university staff with workstation troubleshooting, imaging, hardware upgrades, inventory, and documented identity-management tasks.
- Desktop Support
- Imaging
- Hardware
- Documentation
// WORKING TOOLKIT
Broad enough to connect the system. Focused enough to deliver.
Tools are only useful when they support reliable work, better decisions, and a clearer handoff to the next person.
Security & identity
- Active Directory
- Access control
- Cortex XDR
- iboss Zero Trust SASE
- Event logs
- CJIS-aligned operations
Automation & software
- PowerShell
- Python
- Node.js / APIs
- RAG systems
- OCR pipelines
- HTML reporting
Infrastructure & analysis
- Windows Server
- Network CLI
- Wireshark
- PuTTY
- Log normalization
- Technical documentation
// EDUCATION & QUALIFICATIONS
A computer-science foundation, applied in the field.
DEGREEB.S. Computer Science
University of Texas Rio Grande Valley · 2023
ACCESSCJIS Privileged Role
Criminal-justice information environment
CERTIFICATIONTCIC / TLETS
Texas Department of Public Safety