Missions LINUX : De nombreuses offres publiées quotidiennement

Résumé d'expériences de Mustapha,
freelance LINUX résidant dans le Nord (59)

• Systems Engineer

  Royal Bank of Canada
  Jan 2022 - Jan 2024

  In Quants team, I transform the requirements in technical solution and perform the
  implementation.
  Duties:
   Linux L3 support for Linux CentOS Stream servers running RStudio(now Posit).
   Created Vmware template for Red Hat 9.2.
   Created on prem full Lab Test platform environment : Windows Active Directory, Windows Certificates
  Services, Windows Active Directory Federation Services, Windows SQL Server, Linux Centos Servers
  and configured Linux Centos AD authentication using SSSD stack and installed target applications :
  RStudio Workbench, Rstudio Connect and Rstudio Package Manager.
   RStudio Connect application authentication configuration using SSO with SAML protocol, on prem
  using Microsoft ADFS.
   Reconfiguration of RStudio Connect application authentication using SSO (Single Sign-On) and SAML
  within Microsoft Azure AD.
   Full platform install and configuration of RStudio(now Posit) softwares: Workbench, Connect and
  Package manager on Red Hat 9.2.
   Architecture design proposal for intensive computations on Prem or Azure.
   Ansible playbooks creation and update
   RedHat 9 security hardening : CIS benchmarks and Selinux

• Systems Engineer

  Fiserv
  Jan 2018 - Jan 2022

  Duties:
   Linux L3 support for 1000+ Red Hat and Oracle Enterprise Linux systems in EMEA
   Created python scripts and Saltstack states to ensure Linux systems met standard operations
  specifications in EMEA, APAC, LATAM, NORAM datacenters
   Created multiples saltstack modules for automatic software deployment
   Implementation of global IT transformations projects within global architects team
   Transferred knowledge and documentation to L2 support teams in APAC
   Daily short meeting with EMEA and APAC teams to ensure alignment with projects goals
  Key Project on-premise:
   Implemented CI/CD pipeline using Gitea, Jenkins, Nexus and Saltstack
   Developed saltstack modules for automatic deployment and configuration of multiple products:
  Saltstack minions, Centrify, Apache, WildFly, OpenJDK, ForgeRock OpenAm, Odsee LDAP, Voltage,
  Ondot, Ping Directory
   Developed and added functions to existing python module in order to ensure that Linux VMs builds
  meet standard specifications
   Designed multi Saltstack instances servers for multiple teams across multiple regions
   Cloudify POC : created yaml templates for provisioning automatically AWS EC2 instances
  Key Achievement:
   Improved software delivery time by removing manuals configuration tasks
   Improved quality of deliverables using code management tools and strong testing process
   Reduced operation costs using automation

• Systems Engineer

  Dimension Data
  Jan 2017 - Jan 2017

  Duties:
   Linux Redhat 6/7, Aix 6/7 system administrator
   Oracle 11g, 12c database administrator
   Oracle DB migration form AIX to Exadata X6
  Key Projects:
   Industrialization of IT operations
   Ensure that infrastructure hosted in 2 sites run efficiently and reliably

• Systems Engineer

  Euro car Parks
  Jan 2017 - Jan 2017

  Duties:
   Provided Linux Ubuntu support for developers team
  Key Projects:
   Implemented an ELK v5.4.1 stack solution (Elasticsearch, Logstash, Kibana, FileBeat) on virtual Ubuntu
  servers hosted on Microsoft Azure cloud. The solution is designed to process 1 to 1.5M streams per
  day.

• Systems Engineer

  X Markets Group
  Jan 2017 - Jan 2017

  Audited and improved global IT infrastructure
  Key Projects:
   Installed and configured HFT grid farms
   Migrated Linux infrastructure services from Debian and Gentoo to Linux Centos 7

• Linux Unix Systems Administrator

  Dialog Semiconductor
  Jan 2016 - Jan 2017

  Duties:
   Managed global IT Linux infrastructure over Asia, America and Europe sites
  Key Projects:
   Log management: created functional design and technical implementation of Splunk Entreprise for
  1000+ Linux Red Hat systems. Splunk indexers are hosted as SaaS on Amazon. I configured and
  deployed the client side only (splunkforwarder).
   Configuration management: created and updated Puppet modules
   Monitoring: developed Nagios scripts and updated Python modules for Ganglia
   KPIs dashboards: updated and modified PHP scripts
   Documentation: created and updated operation manuals
  Key Achievement:
   Creating a central log server using Splunk v6.4 was a mandatory project in my basket and I met the
  target. It helped us to fetch logs quickly and detect and solve problems easily.

• Technical Lead for projects

  ABN AMRO Bank
  Jan 2013 - Jan 2015

  Duties:
   Coordinated with offshore and nearshore IBM teams in India, Poland and Czech Republic
   Executed IT transformation projects whilst providing Linux support, studying Perl scripts, and
  preparing and managing IT changes
  Key Projects:
   SAN to NAS migration: preparing the action plan for data migration from EMC to NetApp bays
   Virtualisation: assembling and wiring servers farms into 2 data center, including SAN and Ethernet
  cables
   Technology refresh: migrating W2003 physical cluster to W2008R2 using VMWare + HA features
   Axway Transfer CFT upgrade: from v2 to v3 on Windows 2008R2 servers and AIX 6.1 servers
   CFT Encryption: encrypted all communications with SSL and files with GnuPG
   DR exercises: Prepared and executed a BCP (Business Continuity Plan) procedures for Klovis platform
  and CFT platform
  Key Achievement:
   CFT upgrade and encryption were mission critical projects for the Bank. I led all technical teams,
  stakeholders and completed rollout to production on time and reduced support costs.

• Systems and Storage Engineer

  EDF Energy
  Jan 2012 - Jan 2013

  Duties:
   Implemented GPFS, an IBM distributed filesystem on AIX and Linux hosting Oracle and SAP, including
  studying the impact of the OS upgrade from AIX v5.3 to 6.1, and RedHat from v5.7 to v6.2
   Upgraded GPFS from v3.3 to v3.4, created a GPFS filesystem for both operating systems, updated
  operating scripts, and developed alert scripts for Patrol and backup and restore scripts for RedHat VM
   Optimised shell scripts, and created virtual servers for test environment, developing and upgrading
  operation manuals and software installation and configuration documentation whilst delivering level
  3 operation support
   Knowledge transfer and training
  Key Achievement:
   Substantially reduced maintenance and operating costs.

• Storage Administrator

  Bouygues Telecom
  Jan 2011 - Jan 2012

  Duties:
   Acted as Storage SAN-NAS Administrator, working with the BAU team dealing with all storage
  infrastructure issues, and solving incidents on all SAN devices, such as HBA, Switch, Federator, Router,
  DWDM and NetApp, IBM and Hitachi storage arrays
   Provided technical support for the project team, planned and executed maintenance optimisation, as
  well as raise technical issues to vendors as required

• IT Specialist

  APITEC
  Jan 2010 - Jan 2011

  Duties:
   Migrated operating system from XP to Windows7
   Configured virtual machine (VirtualBox) under Windows7 using XP OS in order to maintain
  backward compatibility with CRM Software
   Implemented and configured firewall and Squid proxy server