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Yunus OzbagYO

Yunus Ozbag

DevOps | Linux | Cloud | SRE | AWS | CI/CD

€500/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Yunus

DevOps and Linux Engineer | Kubernetes, AWS, Terraform | Cloud and on-premise Infrastructure, CI/CD

When the infrastructure becomes complex and service availability is critical, deployments must be reliable, **fast**, and automated. My role is to design and make technical platforms reliable through DevOps practices, **automation**, and modern infrastructure based on Kubernetes, AWS, and Terraform.

I am a DevOps and Linux Engineer specializing in the implementation and industrialization of Cloud and on-premise infrastructures. I work across the entire technical chain: containerization with Docker, Kubernetes orchestration, Infrastructure as Code with Terraform, setting up CI/CD pipelines with Jenkins or Gitlab, and Bash scripting to automate operations and reduce manual tasks.

I have worked incriticaland large enterprise environments where systemreliability,availability, andsecurity are major challenges. My missions include deploying and operating Kubernetes platforms, designing AWS architectures, industrializing deployments via CI/CD, and applying SRE (Site Reliability Engineering) practices to improve infrastructure stability, observability, andresilience.

I offer end-to-end support: analysis of your infrastructure, implementation of anautomated,documented, andmaintainable architecture, and integration of DevOps and CI/CD processes enabling faster and more secure deployments.

Technologies and methods: Linux, Kubernetes, AWS, Terraform, Docker, Jenkins, Gitlab, CI/CD, Automation, Bash Scripting, Cloud and on-premise infrastructure, DevOps and SRE (Site Reliability Engineering).

Contact me on Malt to arrange a quick video call. I usually respondwithin 24 hours.
  • French

    Native or bilingual

  • English

    Conversational

  • Turkish

    Native or bilingual

Can work on-site
Paris (up to 50km), Lyon (up to 50km), Marseille (up to 50km), Toulouse (up to 50km), Montpellier (up to 50km)

Experience

  • SNCF
    DevOps Engineer – Linux, Kubernetes, AWS
    TRANSPORTATION
    March 2024 - Today (2 years and 3 months)
    La Mulatière, France
    → Mission Objective:
    Ensure the operation, security, and industrialization of a critical SNCF platform (OIV) hosting several hundred applications, by improving the availability, resilience, and performance of Linux/Unix environments in a DevOps and hybrid cloud approach (on-premise, AWS, Azure).

    → Achievements:
    • Operation and MCO ofhundreds of Linux/Unix servers (RedHat, CentOS, Ubuntu, Solaris)withN2/N3incident management,high availabilityimprovement,SLAcompliance, and betterquality of serviceon critical platforms.
    • Industrialization of deployments viaCI/CD GitLab, Jenkins, GitHub,Ansibleautomation, andTerraform Infrastructure as Code, enabling the absorption of40+ monthly production releases and 180+ applicationswith moreperformance, reliability, and time savedfor the teams.
    • Operation ofKubernetes / Dockerenvironments (1200+ pods, 20+ namespaces)andAWS & Azure cloudinfrastructures (EKS, EC2, Lambda, AKS, VNet, IAM) withDatadog/Netcoolobservability, improvingresilience,monitoring, andapplication performance.

    → Technical Stack:
    Linux (RedHat, CentOS, AlmaLinux, Ubuntu, Solaris), Kubernetes, Docker, GitLab CI/CD, Jenkins, GitHub, Ansible, Terraform, AWS (EC2, EKS, Lambda, S3, RDS, VPC, IAM, CloudWatch), Azure (VM, AKS, Blob Storage, VNet, Key Vault, Monitor), VMware, Nutanix, Datadog, IBM Tivoli Netcool, Networker, Rubrik, Axway Automator, Rundeck, Dollar Universe.
    Linux Docker Kubernetes Terraform Amazon Web Services
  • GRTgaz
    Linux Systems Engineer | SAN Storage | Backup
    ENERGY AND UTILITIES
    July 2018 - February 2024 (5 years and 7 months)
    Le Bourget-du-Lac, France
    → Mission Objective:
    Ensure the operation, security, and evolution of critical Linux, SAN/NAS storage, and backup infrastructures for an OIV information system with high demands for availability, performance, and service continuity.

    → Achievements:
    • Administration and operational maintenance of over1000 RedHat Linux serversandSolarisenvironments,N2/N3 incidentmanagement,system performanceoptimization,infrastructure availabilityimprovement, and strict adherence toITIL SLAs / processes.
    • Operation and optimization ofDell EMC SAN/NAS storage(VMAX, XtremIO, VNX) andBrocade SANinfrastructures,storage capacitymanagement,high availability, I/O performance, and reliability ofcritical infrastructures.
    • Administration ofVeritas NetBackup backup,Bash / Shell scriptingautomation,Zabbixmonitoring, automatedbackup reportinggeneration,infrastructure monitoringimprovement,incident detection, Linux system security, and operational reliability.

    → Technical Stack:
    Linux (RedHat), Solaris, VMware, Dell EMC VMAX, XtremIO, VNX, Brocade SAN, Veritas NetBackup, Zabbix, OEMCC, VTOM, Bash / Shell scripting.
    VMWARE Linux Server scripting-automation Red Hat Linux Linux System Administration
  • Université Savoie Mont Blanc
    Systems & Network Engineer | Linux, Windows Server
    EDUCATION AND E-LEARNING
    November 2017 - April 2018 (6 months)
    Le Bourget-du-Lac, France
    → Mission Objective:
    Design and deploy a complete systems and network infrastructure simulating a multi-site company's information system, including network architecture, infrastructure services, and a virtualized environment for testing.

    → Achievements:
    • Design and deployment of a multi-site IT infrastructure with anenterprise network architecture, BGP/OSPF routing, improvingnetwork reliability,infrastructure scalability, andIS architecture quality.
    • Implementation ofLinux / Windows Server systems administration, Active Directory, GPO, DNS, DHCP, Mail and Web servers, enablingcentralized user management,better IT service performance, andtime savings in administration.
    • Deployment of asecure inter-site VPNandcomplete infrastructure virtualization with VirtualBox, facilitatinginfrastructure testing,environment reproducibility, andtechnical IS demonstration.

    → Technical Stack:
    Linux (CentOS), Windows Server, Active Directory, GPO, DNS, DHCP, Mail Server, Web Server, BGP, OSPF, VPN, VirtualBox, Cisco (routers & switches).
    Virtualization Red Hat Linux Linux Server Linux System Administration Network Administration

Recommendations

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Yassine LaazizYL
Cyril Aurejac and 2 other people have recommended Yunus

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Education

  • Master in Telecommunications and Computer Networks (TRI)
    Université Savoie Mont Blanc
    2020
    Objectifs en termes d’acquisition de compétences : Déploiement d’infrastructures télécoms et réseaux / Administration et sécurisation de systèmes (Linux et Windows) et de réseaux / Outils de développement de services WEB / Architectures client-serveur et N-tiers, serveurs d’applications, systèmes répartis, middleware. Objectifs en termes de métiers : Ingénieur systèmes Linux / Administrateur réseaux et systèmes / Architecte réseaux / Ingénieur sécurité réseaux et informatique / Intégrateur en réseaux de télécoms / Développeur de services web et nomades / Chef de projet.
  • Bachelor's degree in Telecommunications and Computer Networks (TRI)
    Université Savoie Mont Blanc
    2018
    Objectifs en termes de connaissances et compétences : Déploiement d’infrastructures télécoms et réseaux / Administration et sécurisation de systèmes (Linux ou Windows) et de réseaux / Programmation, développement et outils pour les infrastructures réseaux et télécoms / Réseaux IP et administration / Réseaux d’entreprise / Téléphonie IP / Concepts liés aux transmissions numériques.

Certifications

  • CCNA 1
    CISCO
    2016
    Network Administration Cisco Network Administration
  • CCNA 2
    CISCO
    2017
    Network Administration Cisco Network Administration

Skill set

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