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Mohamed AtiMA

Mohamed Ati

Tech Lead DevOps & Cloud Architect

€750/day
Paris, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Mohamed

Tech Lead DevOps/Ops and Cloud Architect, I have been supporting critical Linux, OpenStack, and OpenShift platforms in production for over 10 years, with a strong focus on security, resilience, and industrialization.
I manage and upskill teams (up to 20 engineers), structure practices (critical documentation, runbooks, post-mortems, OPS COPs), and lead transformations (Build/Run merger, SRE team). My Red Hat certifications (OpenShift Admin 4.10, RHCA) and innovation work (SIP patent, 1st Orange Business prize) illustrate my technical commitment and ability to deliver in sensitive contexts.
  • French

    Native or bilingual

  • English

    Fluent

  • Arabic

    Native or bilingual

Can work on-site
Paris (up to 50km)

Experience

  • Orange
    Tech Lead DevOps & Cloud Architect
    TELECOMMUNICATIONS
    January 2020 - Today (6 years and 5 months)
    Châtillon, France
    • Design, deploy, and operate a multi-datacenter Red Hat OpenStack platform (approx. 300 HPE servers, approx. 3,000 Linux VMs) hosting Orange Mail (36 million mailboxes), audited by ANSSI (RS226).
    • Manage production releases and daily operations: L3 on-call, major incident coordination (war room, communication), post-mortems, and corrective action plans.
    • Ensure platform performance, resilience, and capacity.
    • Promote automation & industrialization via IaC (Ansible, Terraform), GitLab CI pipelines, to reduce manual interventions.
    • Integrate access controls (FreeIPA/Keycloak), secret management (Vault), encryption (Barbican), and harden Linux and network according to ANSSI requirements.
    • Lead the work of experts and architects, facilitate the OPS community of practice, and support the upskilling of new team members.
    • Participate in technical studies, acting as a Tech Lead.
    • Contribute to the merger of Build & Run teams and the establishment of an SRE team.
    • Product Owner for the Infrastructure team within the Mail service's SAFe Train.
    • Define the cloud & storage strategy and roadmap aligned with business objectives; integrate eco-design with measured reduction of carbon footprint.
    • Technological watch on open-source solutions (events, conferences, workshops).
    Linux Openstack Ansible DevOps On-call duty
  • Ecole d'ingénieur
    Visiting Lecturer EFREI, UVSQ, and ELUV
    EDUCATION AND E-LEARNING
    January 2013 - Today (13 years and 5 months)
    Villejuif, France
    • Courses and practical sessions on DevOps, Cloud (OpenStack), Linux, networks, and security topics.
    • Design of materials, syllabi, and assessments; active pedagogy (labs, projects).
    • Project supervision, tutoring of work-study students/interns.
    Docker Networks Ansible Linux
  • Orange
    Linux System Engineer
    TELECOMMUNICATIONS
    January 2016 - January 2020 (4 years)
    • Automation of deployment and configuration of Linux systems.
    • Level 3 support for operational teams on Red Hat Enterprise Linux (RHEL).
    • Deployment of private cloud environments in an OpenStack Lab with CEPH storage.
    • Relations with partners and suppliers (Red Hat, HPE, Fortinet, Dell).
    • Customer interventions to support pre-sales teams.
    • Technological watch on open-source solutions (events, conferences, workshops).
    Redhat Satellite RHEL Ansible Bash scripting Ceph

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Education

  • Systems & Networks Engineer, work-study program
    Université de Versailles Saint-Quentin-en-Yvelines
    2011
    Ingénieur Systèmes & Réseaux, en alternance

Certifications

  • Certified SAFe® 6 Architect
    Scaled Agile, Inc.
    2023
  • Red Hat Certified Architect in Infrastructure (170-049-654)
    Red Hat
    2023

Skill set

Categories