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Zhenxiu Z.ZZ

Zhenxiu Z.

Expert Cloud AWS & Security

€800/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Zhenxiu

➤ I am passionate about technologies and their related aspects.

➤ After more than 6 years of experience in hybrid Cloud infrastructures and managed services for diverse clients across various business sectors, I have acquired a wide range of skills and knowledge in IT.

➤ Organized, rigorous, versatile, and pedagogical, I wish to leverage my operational Cloud Architect skills to support you.

✔ Support in the adoption of Cloud and containerization technologies
✔ Design of high-availability architectures
✔ Estimation and Optimization of Cloud consumption costs
✔ Automated infrastructure deployment in a DevOps and IaC culture
✔ Implementation of security mechanisms and hardening
✔ Training and technical support for teams
✔ Implementation of operational best practices
✔ Contribution to the implementation of ISO 27001/2 standard practices
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 10km)

Experience

  • Accor
    AWS Security Engineer / DevSecOps
    HOSPITALITY
    April 2024 - January 2025 (9 months)
    Issy-les-Moulineaux, France
    • Automation of Zscaler Private Access configuration deployment
    • Design of secure network segmentation architecture based on AWS Network Firewall
    • Contribution to PCI DSS compliance of the landing zone
    • Formulation of security recommendations to project teams
    • Contribution to the evaluation and selection of a CNAPP solution
    • Preparation and follow-up of the Infrastructure Security team's PI Planning
    PCI DSS AWS Cloud DevOps Zscaler CNAPP
  • TF1
    AWS DevSecOps Engineer
    FILM AND AV
    December 2021 - March 2024 (2 years and 3 months)
    Boulogne-Billancourt, France
    ➤ AWS Security Engineer / DevSecOps
    • Design and implementation of Cloud Security Posture Management solutions
    • Overhaul of access management with an RBAC model adapted to the organization's needs
    • Hardening of service control policies
    • Development and formalization of the AWS operational security policy
    • Support for project teams on security best practices
    • Monitoring of non-compliance remediation with operational teams

    ➤ Application Security Engineer
    • Configuration, integration, and operation of application security tools (SAST & SCA)
    • Support for development teams in identifying, analyzing, and remediating vulnerabilities
    • Development of security indicators and automation of the deployment process
    AWS Cloud CSPM SAST Cybersecurity Python
  • Deloitte
    Cloud Architect - Manager
    CONSULTING AND AUDITS
    March 2015 - May 2021 (6 years and 2 months)
    Puteaux, France
    ➤ Operational Cloud Architect • Manager Role
    • Contribution to architectural choices, design, and evolution of the hybrid cloud platform for managed services, ensuring consistency, scalability, and security
    • Development of prototypes, technical studies, and budget estimations
    • Conducting architecture reviews and validating technical solutions for projects
    • Contribution to bid responses, including architecture design and costing
    • Recruitment, management, and technical support of collaborators
    • Project delivery management and coordination, in collaboration with all stakeholders
    • Technical referent for the analysis and resolution of critical incidents

    ➤ Security Engineer Role
    • Contribution to the implementation and application of ISO 27001/27002 requirements
    • Validation of application and technical architectures and designs regarding security aspects
    • Implementation and strengthening of security controls and hardening measures for systems and services
    • Contribution to ISO 27001 audits and compliance maintenance

    ◎ Sample Mission #2 • IAM Managed Service • International French Client • Retail Sector
    • Design of a high-performance (> 350k users) and resilient hybrid Cloud architecture (99.99% SLA)
    • Writing of the technical architecture document (HLD & LLD)
    • Coordination with teams and contribution to implementation across all layers
    • Contribution to deployment automation in a DevOps IaC culture
    • Preparation and testing of the IT disaster recovery plan
    • Project management: organization, planning, budget, and reporting

    ◎ Sample Mission #1 • Move to cloud for broadcast site • French Client • Audiovisual Sector
    • Analysis of the existing application architecture and identification of optimization areas
    • Performance improvement
    • Refactoring and migration of the application to AWS
    • Design and execution of load tests
    AWS Cloud ISO 27001 Cloud Architect DevOps Microsoft Azure

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Education

  • Bachelor's Degree in Mathematics and Computer Science
    UPEC
    2012
  • Engineering Degree in Computer Science
    Efrei
    2015

Certifications

  • ITIL v3
    AXELOS
    2017
    ITIL
  • Professional Scrum Master 1
    Scrum.org
    2018
    Scrum

Skill set

Categories