Iulian Constantinescu

AWS DevOps Architect at Levi9 Technology Services
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Contact Information
us****@****om
(386) 825-5501
Location
Iaşi, Romania, RO
Languages
  • English Full professional proficiency
  • French Elementary proficiency

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Credentials

  • Well-Architected Proficient
    Amazon Web Services (AWS)
    Mar, 2022
    - Nov, 2024
  • Exam 411: Administering Windows Server 2012
    Microsoft
    Jan, 2015
    - Nov, 2024
  • MCSA: Windows Server 2012
    Microsoft
    Jan, 2015
    - Nov, 2024
  • Exam 410: Installing and Configuring Windows Server 2012
    Microsoft
    Sep, 2014
    - Nov, 2024
  • MS: Server Virtualization with Windows Server Hyper-V and System Center Specialist
    Microsoft
    Jun, 2014
    - Nov, 2024
  • Network+ Certified Professional
    CompTIA
    Aug, 2010
    - Nov, 2024
  • CompTIA Network Infrastructure Professional – CNIP Stackable Certification
    CompTIA
    Oct, 2009
    - Nov, 2024
  • Server+ Certified Professional
    CompTIA
    Oct, 2009
    - Nov, 2024
  • CompTIA IT Operations Specialist – CIOS Stackable Certification
    CompTIA
    Aug, 2009
    - Nov, 2024
  • A+ Certified Professional IT Technician
    CompTIA
    May, 2009
    - Nov, 2024
  • MCPS: Microsoft Certified Professional
    Microsoft
    Nov, 2008
    - Nov, 2024
  • MCTS: Microsoft Windows Client, Configuration
    Microsoft
    Nov, 2008
    - Nov, 2024
  • AWS Certified DevOps Engineer – Professional
    Amazon Web Services (AWS)
    Aug, 2021
    - Nov, 2024
  • AWS Certified Developer – Associate
    Amazon Web Services (AWS)
    Mar, 2021
    - Nov, 2024
  • AWS Certified SysOps Administrator – Associate
    Amazon Web Services (AWS)
    Sep, 2020
    - Nov, 2024
  • AWS Certified Cloud Practitioner
    Amazon Web Services (AWS)
    Jul, 2018
    - Nov, 2024
  • AWS Certified Solutions Architect – Associate
    Amazon Web Services (AWS)
    Sep, 2019
    - Nov, 2024
  • Cisco Certified Entry Networking Technician (CCENT)
    Cisco
    Jul, 2010
    - Nov, 2024

Experience

  • Levi9 Technology Services
    • Netherlands
    • IT Services and IT Consulting
    • 700 & Above Employee
    • AWS DevOps Architect
      • Aug 2017 - Present

      Hardcore automation and deep dive over n+1 tools: AWS, AWS Well Architected Reviews, Terraform, Packer, Ansible, Docker, Mesos, Marathon, Consul, ELK (ElasticSearch/ OpenSearch), Kafka, Prometheus, Pager Duty, Grafana, Fluentd, HAProxy, DNSmasq, Nifi, Cloudflare, Octopus, OpenResty, Jenkins CI/CD(groovy),K8s and friends, shell scripting(bash, PowerShell), Python, JavaScript and Lua programming ⇒ Good night sleep(SRE).

    • DevOps Deparment manager
      • Oct 2017 - Jul 2020

      Managing the DevOps department in Levi9, acting as a technical leader and guiding people in their roles in Levi9.

  • wehkamp
    • Netherlands
    • Retail
    • 700 & Above Employee
    • AWS DevOps Architect
      • Aug 2017 - May 2023

      Automation across large number of tools: AWS, Terraform, Packer, Ansible, Docker, Mesos, Marathon, Consul, ELK (ElasticSearch/ OpenSearch), Kafka, Prometheus, Pager Duty, Grafana, Fluentd, HAProxy, DNSmasq, Nifi, Cloudflare, Octopus, OpenResty, Jenkins CI/CD(groovy),K8s and friends, shell scripting(bash, PowerShell), Python, JavaScript and Lua programming ⇒ Good night sleep(SRE). Automation across large number of tools: AWS, Terraform, Packer, Ansible, Docker, Mesos, Marathon, Consul, ELK (ElasticSearch/ OpenSearch), Kafka, Prometheus, Pager Duty, Grafana, Fluentd, HAProxy, DNSmasq, Nifi, Cloudflare, Octopus, OpenResty, Jenkins CI/CD(groovy),K8s and friends, shell scripting(bash, PowerShell), Python, JavaScript and Lua programming ⇒ Good night sleep(SRE).

  • JxEE Lab.
    • Romania
    • IT Services and IT Consulting
    • 1 - 100 Employee
    • DevOps Architect
      • Jan 2012 - Jan 2022

      Administer an infrastructure, composed of multiple Linux/UNIX/Windows servers hosted on Citrix XenServer cluster(compute nodes, network traffic separation, storage nodes), those deliver different services like: Oracle DB, LAMP stack, JBOSS, backup system, bug-tracking, samba, FTP, integration with MS Azure Cloud, email servers, monitoring/configuration-control (Cacti, Nagios/Icinga, Puppet, ...), VPN(Cisco, Nortel), NAS(cross node data replication), Active Directory, MS Exchange and MS SharePoint. I make sure that the environment, can perform in the normal parameters. Show less

  • Mambu
    • Netherlands
    • Software Development
    • 700 & Above Employee
    • AWS Cloud Administrator
      • Dec 2016 - Jul 2017

      Managed a cloud infrastructure hosted in the Amazon Web Services. Daily job implied several types of tasks which covered most of the life-cycle stages of any application: testing, deployment, monitoring, a lot of troubleshooting, improvements, compose/update documentation and reports. Managed a cloud infrastructure hosted in the Amazon Web Services. Daily job implied several types of tasks which covered most of the life-cycle stages of any application: testing, deployment, monitoring, a lot of troubleshooting, improvements, compose/update documentation and reports.

  • PeoplePost
    • Iaşi, Romania
    • IT Manager/DevOps Engineer
      • Jun 2015 - Dec 2016

      Worked with cutting edge technologies over the Amazon Web Services cloud infrastructure. Daily job implied to choose the best strategies for continues performance improvement, cost reduction and maintenance to a state-of-the-art service which covers development, staging and production environment. - java/scala micro services, - spot instances lunched from spot-fleet for build system, - database systems(sql and no-sql): MsSQL, Postgresql, Mongo,Redis, GraphDB, Solr, Zookeeper, - resource/configuration management: Puppet/Forman, aws-cli, bash and powershell, - automated live deploy process, - PCI level 1 security implementation, - logging, ELK stack: filebeat, topbeat, networkbeat, redis, logstash-indexer, elastic search, - monitoring/audit done thru Nagios/Icinga, CloudWatch, CloudTrail, OSSEC, OpenVAS, - AWS services trough UI/cli: Route53, S3, VPC, IAM, RDS, ElasticCache, SNS, SES, Glacier, CloudFront, EC2, TrustedAdvisor ..., - code versioninig: git, - artifact repository: Nexus, - build: Jenkins, - task management/messaging: Jira, Confluence, Slack/Skype. Show less

  • Optymyze
    • United Kingdom
    • Software Development
    • 1 - 100 Employee
    • Systems Administrator
      • Apr 2013 - Jun 2015

      Manage local and remote(USA and India) Vmware vSphere data-centers infrastructure. The infrastructure contains several environments: testing, development, systems and production. As systems administrator I was responsible to deploy, configure, decommission, and monitor machines' resources/network appliances from all environments. Also, my daily job included to improve systems performance, security of physical and virtual machines. Our infrastructure contained Windows 2003, 2008 and 2012 servers which power up various roles/services like Active Directory, Exchange messaging system, SharePoint. Also, we host different Linux flavors as: Oracle Enterprise Linux, CentOs, Ubuntu. For storage systems we use SAN and NAS from NetApp, TrueNas. For an efficient work I keen to automate tasks using PowerShell, PowerCli and bash scripting. Show less

  • east vision systems
    • Romania
    • IT Services and IT Consulting
    • 1 - 100 Employee
    • DevOps engineer
      • Jul 2012 - May 2013

      Manage about 130 windows/Linux servers spread over 3 cloud providers(Rackspace, Gogrid, ServerBeach). My responsibility included: going through all the steps in a server life cycle(creation, testing, monitoring, automation). Manage about 130 windows/Linux servers spread over 3 cloud providers(Rackspace, Gogrid, ServerBeach). My responsibility included: going through all the steps in a server life cycle(creation, testing, monitoring, automation).

  • SCC
    • United Kingdom
    • IT Services and IT Consulting
    • 700 & Above Employee
    • 2nd Line Support Engineer
      • Mar 2009 - Jul 2012

      Technical and logistic support for 1st/2nd line service desk annalists, on field engineers. Handle calls with a higher level of difficulty. At company request, I provided several sessions of trainings concerning network-server technologies for infrastructure monitoring and support teams. Technical and logistic support for 1st/2nd line service desk annalists, on field engineers. Handle calls with a higher level of difficulty. At company request, I provided several sessions of trainings concerning network-server technologies for infrastructure monitoring and support teams.

  • XL World
    • Romania
    • Outsourcing and Offshoring Consulting
    • 1 - 100 Employee
    • Systems Administrator
      • Oct 2008 - Mar 2009

      Responsible for Windows/Linux infrastructure: Active directory updates(human resources, computers...), Group Policy Management (creation, applying, modification), network security, firewall/ VPN/caching server, Samba services, network resource management (administrative shares, printers, video projectors, etc.). And a lot of daily troubleshooting for those more than 900 PC and 38 servers. Responsible for Windows/Linux infrastructure: Active directory updates(human resources, computers...), Group Policy Management (creation, applying, modification), network security, firewall/ VPN/caching server, Samba services, network resource management (administrative shares, printers, video projectors, etc.). And a lot of daily troubleshooting for those more than 900 PC and 38 servers.

Education

  • Universitatea „Alexandru Ioan Cuza” din Iași
    Bachelor's degree, Business Information Systems
    2004 - 2008

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