Missions LINUX : De nombreuses offres publiées toutes les semaines

Aperçu d'expériences de Mustapha,
freelance LINUX habitant le Nord (59)

Expérience professionnelle

Royal Bank of Canada – Oct 2022 - Jan 2024
Systems Engineer
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

Fiserv Jan 2018 – Aug 2022
Systems Engineer
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

Dimension Data Jul 2017 – Nov 2017
Systems Engineer
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

Euro car Parks May 2017 – Jun 2017
Systems Engineer
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.

X Markets Group Feb 2017 – Apr 2017
Systems Engineer
Duties:
 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

Dialog Semiconductor Apr 2016 – Jan 2017
Linux Unix Systems Administrator
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.

ABN AMRO Bank Nov 2013 – Dec 2015
Technical Lead for projects
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.

EDF Energy Mar 2012 – Sep 2013
Systems and Storage Engineer
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.

Bouygues Telecom Jun 2011 – Mar 2012
Storage Administrator
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

APITEC Dec 2010 – May 2011
IT Specialist
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

Capgemini Nov 2010 – Nov 2010
Systems Engineer
Duties:
 Created a technical architecture document for Android Developer Workstation Project, in order to
replaceWindows XP by Linux Ubuntu, and remove the costs of Windows licence.
 Assessed the customer’s requirements, defined and validated Ubuntu workstation security
specifications aligned to the company policy rules
 Designed local mirror infrastructure for Ubuntu packages repository
 Implemented Kerberos authentication for Linux Ubuntu users within Windows AD using Centrify

APITEC Sep 2010 – Oct 2010
Systems Engineer
Duties:
 Participated in the FileServer project to secure APITEC data, including assessing the customer’s needs
and defining specifications according to requirements
 Installed and configured 2 file servers Active/Passive with an overall capacity of 3TB, following up with
a complete validation of the storage solution

SystemSarah Feb 2010 – Jul 2010
Embedeed Linux Engineer
Duties:
 Provided level 3 Linux support to the company developer, configuring Debian x86 workstation with
ARM build tool chain, cross-compiled and embedded Linux Kernel 2.6.30 on Beagleboard ARM
platform using buildroot uclib tools chain

IBM 1998-2010
Systems and Storage Engineer (2005-2010)
In 2005, I joined IBM HPC Department, dedicated to delivering IBM High Performance Computing
solutions to the Customers. In this position, I worked closely with IBM Architect and implemented the
computing solution within the Customer's sites.
Duties:
 Provided 3rd level Linux support and field service engineering in the High Performance
Computing department, including finalising architecture specifications and supporting pre-sales
teams for try-and-buy operations
 Optimised and industrialized platforms, integrated and ran IBM HPC solutions on pSeries/xSeries
platforms, upgraded AIX and Red Hat / SLES, configured data replication and high availability
filesystems using GPFS
 Configured Kerberos protocol for AIX server and Windows AD
 Configured cluster farms, network devices, SAN devices and IBM storage bay
 Configured VMware ESX servers
 Developed shell scripts, audited global Linux SLES I/O disk performance
 Automated Linux image deployment, defined maintenance action...