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Name and address of employer Hibu Limited (Yell Group plc)
Main activities and Yell is a multinational business directories and internet services company
responsibilities
Managing the DevOps company's transformation for two operations teams in UK and one team in India.
Working with Hybrid environment with two physical UK based Data Centers with
DR/BCP procedures and expansion to AWS and Rackspace services . A wide range of third party vendor's management activates are also in my every day long list.
Yell also is heavy ITIL based environment with agile operations, agile project management and CI/CD pipelines.
Responsibilities: Leading the teams responsible for the deployment and support of the company's digital services portfolio and in particular the performance, availability, integrity and security of the services. I also act as the interface with the wider infrastructure and Applications support teams and the digital engineering team.
Make suggestion to improve best practice and develop relationship with the wider technology and engineering community and organizing the DevOps Roadmap

Occupation or position held Sr infor System Administrator (XenMobile Cloud Ops - UK R&D)
Main activities and Part of the citrix workspace cloud team. This is an XenMobile SaaS
responsibilities
implementation.
Administrator managing Linux (Ubuntu/Redhad) based environments and Java based applications on AWS multi region cloud environments (EC2 , VPC (ipsec vpn), Route53, S3, RDS, DynamoDB, EMR and more). Server management through Chef and in house provisioning tools and monitored via NewRelic, sumologic, nagios and dot-com monitor.
Responsibilities: 3 rd level customer face support. Creating Proof of concept environments based on customer needs. Srum master dealing with the everyday and long term cloud operations global team projects(4 time zones). For example provisioning and decommission managed sites customized per customer, AWS management, optimization and cost optimization, monitoring, backup

Main activities and Part of the PaaS IaaS DevOps team
responsibilities
Exalogic based datacenter. Main infrastructure on Nimbula Cloud Director and managed through Chef, Mcollective, Oracle Enterprise Manager, elasticsearch, logstash, graphite, zookeeper, Oracle NoSQL, xen and KVM based hy pervisors

Type of business or sector Marketing
Main activities and Amazon Cloud Administration
responsibilities
Working with EC2, VPC, ELB, S3, Glacier, Cloudwatch, Cloudfront, Route53,
RDS, IAM, Cloud Formation, Nagios, Check_MK, Chef.
Multi region and autoscale architecture.
Support In house distributed e-commerce and marketing platform based in
Apache, PHP, mongoDB, mysql and Ubuntu Linux.
Responsibilities: technical support / consulting, consolidation, rationalization and tuning, deploying new autoscale services

Type of business or sector Internet Services
Occupation or position held - Main activities and System Administrator
responsibilities
Amazon Cloud Administration for Game platform with more than 1million registered users.
Linux based High scalable and high transaction environment.
Working with EC2, ELB, S3, Cloudwatch, Cloudfront, Route53, HAproxy, nginx, apache, MySQL, Adobe Flash Media server, Nagios.
Responsibilities: 24/7 support, installation, configuration, implementation and tuning

Type of business or sector IT / Telecommunications
Occupation or position held - Main activities and Senior System Administrator
responsibilities
Company Informational System Management and
Virtualization and data center consolidation. based on Linux - BSD - Solaris 8,10, windows server2003/2008, Postgresql,
Mysql, Oracle, apache, Jboss, Asterisk, samba, Active Directory, weblogic

Occupation or position held IT services
Main activities and Security Systems Technician

employer - Type of business or sector Altec S.A. (Altec Telecom) Athens Greece
engineer -Main activities and
responsibilities
Servers and Clients Technical Support in various companies subsidiaries such as: OTE, National Bank of Greece, Agricultural Bank of Greece, General Bank of
Greece, Eurobank, Emporiki Bank of Greece, Ministry of Finance, Ministry of
Commerce, Ministry of Education
( C4I project ) Servers supervisor that dealt with recording audio and video data from police's surveillance cameras located in Athens
During the Olympic Games Supervisor for Installing and Administering clusters with SUNfire servers under the Solaris operating System

Group of advertising services Senior System Administrator - Occupation or position held
Main activities and responsibilities
IT Support (Accounting DPT (ERP/CRM), LAN (domain controller),
Internet Hosting (webservers,mailservers), Computers & Networking
Maintenance(switching,firewalls,anti-Virus)

Occupation or position held System Administrator
Main activities and Servers Administration, hosting (Virtual hosts / domains, web, mail, ftp, DNS)
responsibilities shell, e-shops) network and internet solutions, internet security