Alin C.

Experience

• 

  Cretu Silviu Law Firm

  Jan 2014 - Feb 2016

  Internship Trainee

  • maintenance of the firm infrastructure

• 

  Atos

  Feb 2016 - Jul 2018

  Linux System Administrator

  • managed over 400 virtual and physical servers in a Linux environment (Red Hat Enterprise Linux 5/6/7, SUSE 9/10/11/12, CentOS 5/6/7).• provided L2-L3 support and on-call services.• handled user account management, disk storage management, and RAID configurations.• experienced with Nagios monitoring, high-availability clustering (pacemaker, corosync), and network configuration (TCP/IP, teaming, bonding).• performed system performance monitoring and hardware/software maintenance.• automated tasks through shell scripting. Show less

• 

  Nokia

  Jul 2018 - May 2019

  System Engineer

  • administered Red Hat Enterprise Linux versions 5, 6, 7 and Suse Linux Enterprise versions 10, 11, 12.• provided L2-L3 support and on-call assistance.• managed Linux server installations, configurations, and maintenance.• managed LVM, Partitions, ISCSI configurations, and DB Servers (MariaDB).• performed Bash Scripting and configuration management with Ansible.

• 

  Atos

  May 2019 - now

  • managing cloud infrastructure using Terraform, focusing on efficiency and scalability across multiple AWS services, including EC2, Athena, S3, RDS, VPC, IAM, CloudWatch, Route53, ALB, WAF, etc.• performing design reviews, risk assessments, security audits, and provide incident response and guidelines for customers.• implementing and troubleshoot Prisma Cloud Compute (Redlock/Twistlock) for container security.• developing QuickSight visualisation dashboards for patching, backup, and RDS management.• writing and maintaining Ansible Playbooks for deploying, configuring, and managing Linux servers.• creating and maintaining CI/CD pipelines using GitHub Actions and CodePipeline.• deploying and managing Kubernetes clusters using Amazon EKS, with a strong focus on using HELM charts for package management and deployment optimisations in Kubernetes environments.• working with Docker for container creation, managing Dockerfiles, and overseeing container infrastructure on Docker Hub and Amazon Elastic Container Registry. Show less • installed, tested, and configured Linux HPC clusters/servers (Red Hat/CentOS 7 and 8).• managed migration of Red Hat systems from RHEL 6 to RHEL 8.• troubleshot NFS, Samba Servers/Clients, FTP, and Apache.• utilised Prometheus, Grafana, and Node Exporter for time series data storage and visualisation.• administered VMs using VMware vSphere 6.7.• managed remote management consoles (iLO, iDRAC).• monitored HPC systems and servers for security using Nagios.• automated repetitive tasks using Ansible Playbooks. Show less

  • DevOps Engineer

    Mar 2021 - now

  • HPC Engineer

    Aug 2020 - Mar 2021

  • DevOps Engineer

    May 2019 - Aug 2020