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Le ZhangLZ

Le Zhang

Cloud Architect & Devops & Cloud Security Expert

€750/day
Paris, FR
15+ years

Average response time: 1 hour

About Le

Je recherche des missions freelance 100% à distance en temps partiel, en architecture cloud, sécurité cloud et DevSecOps chez des grands comptes ou scale-ups en pleine transformation digitale (banque, énergie, industrie…).
Expert Cloud AWS, Hybride Cloud et Cloud Security Architect avec plus de 15 ans d’expérience, je suis certifié AWS Certified Security – Specialty et AWS Certified Solutions Architect Professional.
Je peux vous accompagner concrètement sur :

La conception et la sécurisation d’architectures cloud (AWS Landing Zone, Private Cloud, hybrid)
La mise en place de solutions DevSecOps (Terraform, Ansible, GitHub Actions, Vault, secret management)
La sécurisation de projets GenAI (AWS Bedrock, IAM Role, data flow, RBAC)
Les migrations Move2Cloud et les déploiements Container as a Service (OpenShift)
DataLake, Kafka, API Management, IoT

Disponibilité :
Je travaille 3 heures par jour en semaine et je suis très disponible tous les weekends (samedi et dimanche complets).
Je serai à Paris tous les weekends (possibilité d’intervention ponctuelle sur place si vraiment nécessaire, mais priorité absolue au full remote).
Ce qui me différencie :

Double expertise architecture + sécurité très opérationnelle (Santander Private Banking, TotalEnergies, BNP Paribas, Société Générale, ACOSS…)
Approche pragmatique qui allie conformité (banque, GDPR) et rapidité d’exécution (IaC, pipelines CI/CD)
Expérience récente sur des sujets très demandés : GenAI sécurisé, micro-segmentation et hybrid cloud

Si votre besoin peut s’adapter à un rythme partiel en full remote, n’hésitez pas à me contacter, je réponds rapidement !
Disponible immédiatement en freelance 100% à distance.
  • French

    Native or bilingual

  • English

    Fluent

  • Chinese

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Santander Private Banking
    Security Architect
    BANKING AND INSURANCE
    May 2025 - Today (1 year and 1 month)
    Geneva, Switzerland
    Private banking overall security solution.
    • - Network Topology and segregation design
    • - Santander Private Cloud design: Greenfield & brownfield macro segmentation and micro segmentation
    • - Container As a Service Solution Design and deployment in private cloud(Openshift)
    • - Data Classification and Security design.
    • - DevSecOps deployment : secret management, github, vault...
    • - B2E and B2C Auth solution, RBAC(role based access control) design and review
    • - Hybrid Cloud technical architecture design & review for GenAI projects: AWS Bedrock LLM, AI Agent, IAM Role design and build, Data flow review for GenAI and Onprem Customer Information Data(CID)
    OpenShift Cloud Architecture Github Actions Terraform Cybersécurité
  • Daveo - Magellan Group
    Cloud Architect
    ENERGY AND UTILITIES
    January 2023 - May 2025 (2 years and 4 months)
    Paris, France
    • ● Architecture review, Technical support, work with Cybersecurity authorities
    • ● Use commun architecture pattern commun for PGE AWS managed Services (Building block, public / private access, Batch, Container, API management, ...)
    • ● Implementation of SysOps with Terraform (Infrastructure as Code)
    • ● Migration of Data tools on AWS & On-Prem (Snowflake, Databricks)
    • ● On-Prem application analysis in order to prepare Technical Architecture for Move2Cloud process

    Devops for Total EV Charging Service , implementation of Building Block(Prebuilt Terraform module) based on Technical Application Architecture (ToBe)
    • - Review of technical requirements
    • - Development of pipeline Terraform on GithubActions for deployment application on ECS.
    • - Terraform application infrastructure in AWS: Secret manager, mTLS IoT Certificate management, EFS, S3.
    • - EV Charging service IoT Cloud migration plan (Azure to AWS)
    Terraform Cloud Architecture Github Actions Landing Zone IoT
  • Kyndryl
    Cloud Security & Automation Architect
    July 2022 - December 2022 (5 months)
    Paris, France
    RFP Stellantis for moveToCloud on-premise DC including mainframe, HPC with lift-and shift approach. RFP for moveToCloud lift-shift and replatforming using Azure, ServiceNow, Terraform and Ansible Automation RFP for Cloud Security Integration with Prima Cloud/Checkpoint/CrowdStrike
    Terraform CI/CD Cloud Architecture Cloud Native

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Education

  • AWS Certified Security – Specialty AWS Certified Solutions Architect Professional
    AWS Certified Security – Specialty AWS Certified Solutions Architect Professional
  • Ecole des Mines de Nantes
    2006

Certifications

Skill set

Categories