Open to opportunities

Cristhian Torrez Silva

@cristhiantorrezsilva

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I build secure web systems and pursue penetration testing and security engineering roles.

Bolivia

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What I'm looking for

I'm targeting cybersecurity, security engineering, and penetration testing roles where I can apply secure development, network security, Linux, and hands-on testing skills. I also bring complementary full-stack development experience.

I've developed internal B2B telecommunications web modules at Tigo and an automotive-parts platform for Cartronic, building with PHP, CodeIgniter 3, React.js, Spring Boot, PostgreSQL, and Azure. My work includes a nationwide Radio Bases visualization module and a subsidy-calculation workflow with validation, database-driven rules, and access restrictions.

I'm a CompTIA Security+ certified Systems Engineering student focused on penetration testing, network security, Linux, and secure application development. I apply RBAC, JWT authentication, input sanitization, and security-oriented architecture in projects such as OXIPUR, while using Python, Bash, Kali Linux, and Burp Suite to deepen my cybersecurity practice.

Experience

Work history, roles, and key accomplishments

B2B Web Systems Developer Intern

Tigo

Jun 2026 - Aug 2026 (2 months)

Developed internal B2B web modules for telecommunications operations using PHP 5, CodeIgniter 3, SQL Server, and JavaScript. Built a Radio Bases module for nationwide infrastructure visualization and migrated a subsidy-calculation workflow into a web module with input validation and user-level access restrictions.