image

Cătălin Corozanu

Curriculum Vitae

About Me

I am the Head of Infrastructure & Security at QuStream, also Information Security Officer at Netopia Payments. In the past years I have worked as a Technical Support Specialist, SysAdmin, DevOps and Web Designer. Also sometimes I write some blog posts, mostly personal opinions and tech stuff.

Work Experience

march 2025 - present
QuStream Encryption LLC

Head of Infrastructure & Security

  • Designed Secure and Scalable Blockchain Infrastructure: Led the architecture and deployment of highly available, decentralized, and resilient blockchain nodes and networks, ensuring security, performance, and regulatory compliance.
  • Developed Advanced Cryptographic Security Measures: Implemented end-to-end encryption, key management strategies, and Zero Trust security models to safeguard digital assets, private keys, and transactions against cyber threats.
  • Led Security Audits and Smart Contract Risk Mitigation: Spearheaded security audits, penetration testing, and vulnerability assessments for blockchain protocols and smart contracts, reducing attack surfaces and ensuring compliance with Web3 security standards.
november 2024 - Present
Netopia Financial Services SA

Information Security Officer

  • Developed and Implemented Security Policies: Leveraged comprehensive knowledge of IT infrastructure to establish robust security policies and procedures, ensuring compliance with industry standards and safeguarding sensitive financial data.
  • Conducted Risk Assessments and Mitigated Threats: Performed thorough risk assessments to identify vulnerabilities within banking systems, implementing effective mitigation strategies to protect against potential cyber threats and ensure the integrity of financial transactions.
  • Led Security Awareness Training Programs: Spearheaded initiatives to educate employees on information security best practices, fostering a culture of security awareness and reducing the likelihood of human error-related breaches.
march 2020 - Present
ShortDot SA

SysAdmin & Web Developer

  • Implement System Upgrades: Plan and execute system updates, patches, and upgrades to ensure IT infrastructure remains current and performs efficiently.
  • Create User-Friendly Websites: Design and develop visually appealing, responsive websites that enhance user experience.
  • UI/UX Design: Apply UI/UX principles to create intuitive and engaging website layouts and interactions.
november 2022 - november 2024
Netopia Financial Services SA

Site Reliability Engineer & DevOps

  • Ensure Reliability: Implement monitoring, logging, and alerting systems to ensure application and infrastructure reliability and performance.
  • Automate Processes: Develop and maintain automation scripts and tools for CI/CD pipelines, infrastructure provisioning, and configuration management.
  • Collaborate Across Teams: Work with development, operations, and other teams to improve software development, deployment, and system operations practices.
november 2020 - november 2022
Cyber_Folks SRL

Technical Support & SysAdmin

  • Manage IT Infrastructure: Oversee and maintain servers, networks, and systems, ensuring their optimal performance and security.
  • Troubleshoot Issues: Diagnose and resolve hardware, software, and network problems promptly to minimize downtime and maintain service continuity.
  • Ensure Security: Implement and manage security measures, such as firewalls, antivirus software, and access controls, to protect IT infrastructure from threats and vulnerabilities.
march 2020 - november 2020
Key-Systems GmbH

Technical Support & SysAdmin

  • Maintain System Health: Monitor and manage server performance, backups, and updates to ensure stable and secure IT operations.
  • Resolve User Issues: Provide prompt assistance and troubleshooting for hardware, software, and network problems, ensuring minimal disruption for users.
  • Document Solutions: Maintain detailed records of support requests and solutions to improve knowledge base and streamline future troubleshooting.
may 2017 - march 2020
Top Level Hosting SRL

Technical Support & SysAdmin

  • Maintain System Health: Administer and optimize servers, networks, and applications to ensure reliable performance and uptime.
  • Resolve User Issues: Provide timely and effective solutions to technical problems, ensuring users receive clear guidance and support.
  • Document and Train: Create detailed documentation and training materials to help users understand and troubleshoot common technical issues independently.

Technical Skills

  • Linux System Administrator
  • Google Cloud Security Engineer
  • Information Security Manager
  • Network Engineer

Soft Skills

  • Communication
  • Collaboration
  • Leadership
  • Organizational Dynamics


Language Skills

  • Romanian
  • English