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Mickael E.ME

Mickael E.

CTO | RSSI | Senior dev Remote JS/PHP/Flutter

€750/day
Gagny, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Mickael

CTO and Cloud / Security expert with over 16 years of experience, I support companies (startup, SME, scale-up) in structuring, securing, and industrializing their information system.
Primarily available outside of office hours (evenings and weekends), with a structured organization allowing for regular exchanges and a strong commitment to deliverables.

My background has allowed me to work on all critical aspects of an IS:
solution development, application architecture, cloud and infrastructure, security, compliance (ISO 27001), automation, as well as management and support of technical and executive teams.
My senior developer background allows me to stay very close to technical teams, challenge implementation choices, and, if necessary, contribute directly to the code.

I primarily intervene in high-value-added missions:
  • Takeover, maintenance, and evolution of existing solutions (hands-on)
  • Takeover and upgrade of existing systems
  • Securing and ensuring compliance (ISO 27001, IT security best practices)
  • Cloud / On-Prem / hybrid Architecture
  • Setting up or structuring an IT department / managed services
  • Fractional CTO / executive support

I am particularly sensitive to projects with a positive impact (social, health, accessibility, useful services), but I also work on more traditional contexts requiring rigor, reliability, and a long-term vision.

Accustomed to full remote or hybrid environments, I work with a high degree of autonomy and an organization adapted to remote work: asynchronous communication, documentation, collaborative tools, and deliverable-driven management.
  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • OPSYNET
    System and Security Engineer
    February 2024 - Today (2 years and 4 months)
    • Creation and structuring of the Managed Services department
    • Design and implementation of an SOC based on open-source tools
    • Supervision, monitoring, and security of infrastructures and network equipment
    • Automation of deployments and operational processes
    • Implementation of backup and restore strategies
    • Drafting and implementation of security policies and procedures (ISO 27001)
    • Complete migration to Microsoft 365 without service interruption
    Docker System Administration ISO 27001 Office 365 Administration Automation
  • DigiCoachMe
    CTO Co-founder
    HEALTH AND WELLNESS
    February 2023 - Today (3 years and 4 months)
    • Implementation of the Digicoachme mobile application and its backend
    • Maintenance and evolution of the REST API
    • Automation of deployments
    • Automation of reporting
    • Publication on various stores
    • Maintaining tool availability
    • Query optimization
  • Deafi
    Technical Director
    May 2019 - Today (7 years and 1 month)
    93100 Montreuil, France
    • Taking over existing code before my arrival (Symfony 2, MySql, Node JS)
    • Management of the company's information system
    • Management of the IT team and recruitment
    • Responsible for technology choices and architecture used
    o) Implementation of high availability
    • Redesign of the company's network
    o) Implementation of redundant fibers to ensure no service interruption in case of fiber failure
    o) Implementation of SSL VPN access to allow remote access to tools
    • Head of Information System Security
    o) implementation of documents, procedures, and best practices
    o) implementation of awareness and training on security best practices
    o) implementation of internal/external audits on information system security
    • GDPR
    • Improvements / optimizations / modernization of tools
    o) Symfony version migration
    o) Creation of mirror servers
    o) Implementation of unit/functional tests
    o) Implementation of deployment scripts for different environments
    o) Implementation of pre-commit/push hooks to prevent syntax errors (PHP, JS, CSS) and ensure compliance with standards (CodeSniffer)
    o) Implementation of continuous development/deployment (CircleCI, Jenkins)
    o) ...
    • Creation of a new version of the mobile application, first in Native Script then in Flutter
    • Creation of a customer service chat solution closely integrated with customers through the WhatsApp API
    • Creation of a call transcription tool, enabling deaf individuals to contact customer services

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Education

  • EUROTECH Master
    Infosup
    2012
    Master EUROTECH
  • DEESINF
    Infosup
    2010
    DEESINF

Skill set

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