Peter Tselios
Linux Consultant, Red Hat Instructor and Examiner at Indepedent Consultant- Claim this Profile
Click to upgrade to our gold package
for the full feature experience.
-
English Full professional proficiency
-
Greek Native or bilingual proficiency
Topline Score
Bio
Yannis Ioannidis
Since we were team-leaders in our respective teams, I had plenty of opportunity to work alongside Peter and appreciate him - Peter was an excellent colleague, very intelligent, goal-oriented and effective in solving various technical & programming issues. It was a pleasure to have worked with him.
Nikos Simos
It is always a pleasure doing business with Peter. He is a technology guy and an excellent programmer and on the same time his conception, wonderful work flow, creativity and understanding of change requests make projects a dream. He can easily understand the needs of the company he works for and he does an excellent job on finding new ways, through IT, to make things go faster, smoother and more efficient. He’s an excellent listener he’s willing to adapt new ideas in order to get the job done. I would highly recommend Peter to anyone who needs a creative manager to rely on.
Michalis Kamprianis
I have worked with Peter in Tellas S.A. and I need to say that Peter is a person who was always eager to learn and exploit new challenges. All the times that I and Peter happened to work together, I was impressed by Peter's aim for perfection and his will to deliver a state of the art solution to all the problems he had in hand, often trying different alternatives seeking the best one. On the security issues, I found Peter to be extremely co-operative. Overall, I consider Peter to be a good addition in any team that aims for robust and stable solutions.
Yannis Ioannidis
Since we were team-leaders in our respective teams, I had plenty of opportunity to work alongside Peter and appreciate him - Peter was an excellent colleague, very intelligent, goal-oriented and effective in solving various technical & programming issues. It was a pleasure to have worked with him.
Nikos Simos
It is always a pleasure doing business with Peter. He is a technology guy and an excellent programmer and on the same time his conception, wonderful work flow, creativity and understanding of change requests make projects a dream. He can easily understand the needs of the company he works for and he does an excellent job on finding new ways, through IT, to make things go faster, smoother and more efficient. He’s an excellent listener he’s willing to adapt new ideas in order to get the job done. I would highly recommend Peter to anyone who needs a creative manager to rely on.
Michalis Kamprianis
I have worked with Peter in Tellas S.A. and I need to say that Peter is a person who was always eager to learn and exploit new challenges. All the times that I and Peter happened to work together, I was impressed by Peter's aim for perfection and his will to deliver a state of the art solution to all the problems he had in hand, often trying different alternatives seeking the best one. On the security issues, I found Peter to be extremely co-operative. Overall, I consider Peter to be a good addition in any team that aims for robust and stable solutions.
Yannis Ioannidis
Since we were team-leaders in our respective teams, I had plenty of opportunity to work alongside Peter and appreciate him - Peter was an excellent colleague, very intelligent, goal-oriented and effective in solving various technical & programming issues. It was a pleasure to have worked with him.
Nikos Simos
It is always a pleasure doing business with Peter. He is a technology guy and an excellent programmer and on the same time his conception, wonderful work flow, creativity and understanding of change requests make projects a dream. He can easily understand the needs of the company he works for and he does an excellent job on finding new ways, through IT, to make things go faster, smoother and more efficient. He’s an excellent listener he’s willing to adapt new ideas in order to get the job done. I would highly recommend Peter to anyone who needs a creative manager to rely on.
Michalis Kamprianis
I have worked with Peter in Tellas S.A. and I need to say that Peter is a person who was always eager to learn and exploit new challenges. All the times that I and Peter happened to work together, I was impressed by Peter's aim for perfection and his will to deliver a state of the art solution to all the problems he had in hand, often trying different alternatives seeking the best one. On the security issues, I found Peter to be extremely co-operative. Overall, I consider Peter to be a good addition in any team that aims for robust and stable solutions.
Yannis Ioannidis
Since we were team-leaders in our respective teams, I had plenty of opportunity to work alongside Peter and appreciate him - Peter was an excellent colleague, very intelligent, goal-oriented and effective in solving various technical & programming issues. It was a pleasure to have worked with him.
Nikos Simos
It is always a pleasure doing business with Peter. He is a technology guy and an excellent programmer and on the same time his conception, wonderful work flow, creativity and understanding of change requests make projects a dream. He can easily understand the needs of the company he works for and he does an excellent job on finding new ways, through IT, to make things go faster, smoother and more efficient. He’s an excellent listener he’s willing to adapt new ideas in order to get the job done. I would highly recommend Peter to anyone who needs a creative manager to rely on.
Michalis Kamprianis
I have worked with Peter in Tellas S.A. and I need to say that Peter is a person who was always eager to learn and exploit new challenges. All the times that I and Peter happened to work together, I was impressed by Peter's aim for perfection and his will to deliver a state of the art solution to all the problems he had in hand, often trying different alternatives seeking the best one. On the security issues, I found Peter to be extremely co-operative. Overall, I consider Peter to be a good addition in any team that aims for robust and stable solutions.
Credentials
-
Red Hat Certified Specialist in OpenShift Administration
Red HatApr, 2021- Sep, 2024 -
Certificate of Expertise in Deployment and Systems Management
Red HatMay, 2017- Sep, 2024 -
System Administrator in Red Hat OpenStack
Red HatSep, 2014- Sep, 2024 -
Red Hat Certified Examiner (RHCX)
Red HatJun, 2014- Sep, 2024 -
Red Hat Certified Instructor (RHCI)
Red HatMar, 2014- Sep, 2024 -
Red Hat Certified Engineer (RHCE)
Red HatMar, 2012- Sep, 2024 -
Red Hat Certified System Administrator (RHCSA)
Red HatOct, 2011- Sep, 2024 -
Red Hat Certified Specialist in Linux Diagnostics and Troubleshooting
Red HatDec, 2021- Sep, 2024 -
Red Hat Certified Specialist in High Availability Clustering
Red HatJun, 2021- Sep, 2024 -
Red Hat Certified Specialist in Advanced Automation: Ansible Best Practices
Red HatJan, 2021- Sep, 2024 -
Red Hat Certified Specialist in Containers and Kubernetes
Red HatJan, 2021- Sep, 2024 -
Red Hat Certified Architect Level VII
Red HatDec, 2018- Sep, 2024 -
Red Hat Certified Specialist in Identity Management
Red HatDec, 2018- Sep, 2024 -
Red Hat Certified Virtualization Administrator
Red HatDec, 2018- Sep, 2024 -
Red Hat Certified Specialist in Data Virtualization
Red HatNov, 2018- Sep, 2024 -
Red Hat Certified Engineer in Red Hat OpenStack
Red HatFeb, 2018- Sep, 2024 -
Expert in Server Hardening
Red HatMay, 2015- Sep, 2024
Experience
-
Indepedent Consultant
-
IT Services and IT Consulting
-
200 - 300 Employee
-
Linux Consultant, Red Hat Instructor and Examiner
-
Apr 2014 - Present
Consultancy contracts: Redhat/Bosch Gbmh Senior Consultant: Automate Infrastructure with Ansible for Bosch private cloud in an Agile/Scrum environment. Inmarsat PLC Senior Cloud Engineer: Implement Core Infrastructure in AWS (IdM, DNS, Satellite Server, AD Integration, Ansible Automation, Ansible Tower, Preparation of SOE, MySQL Replication). AJ Gallacher Installation & Configuration of Red Hat Satellite 6.3 Cubic Transportation Systems: Installation, Configuration and Integration of Red Hat Satellite 6 & Capsule servers. Ladbrokes PLC: Installation and Migration of Red Hat Satellite 6 Integration of Satellite 6 with Puppet Creation of Standard Operating Environment in Satellite 6 New FreeIPA/IdM Servers & migration from openLDAP Tomcat Application Servers with GlusterFS and At-Rest Encryption MySQL Enterprise Servers with At-Rest Encryption New Squid Proxy Servers Major UK Mobile Carrier Migration of Red Hat Network Satellite 5.x to Red Hat Satellite 6.x for a major UK mobile Carrier: Migration of 600+ servers from Satellite 5 to Satellite 6 Migration of Puppet infrastructure to Satellite Creation of Life Cycle environments, provisioning templates, patching policy, users, groups. Migrations from RHEL 5 to RHEL 6/7 for a Cyprus Company. Server Hardening and Security policy appliance on behalf of a UK Consultant. SoW involved patching policy, security auditing & compliance, creation of base VM Images.Red Hat Training:Delivered Red Hat courses in the EMEA region, in more than 10 counties.Delivered on-site and VT courses for Top500 companies, like Cisco Systems, F. Hoffmann-LaRoche, Nokia, AT&T with special focus on Openstack.
-
-
-
WIND Hellas
-
Greece
-
Telecommunications
-
400 - 500 Employee
-
Systems Engineer
-
Sep 2012 - Mar 2014
- 3rd Level support (troubleshooting, incident management)- Deliver to Operations Team task automation tools mainly based on Red Hat Satellite Server- Design & deploy new solutions- Project related site deployment and integration- Integrate solutions together with other application teams- Designing planned maintenance- Performance tuning- Improvement and extension of operational stability- Creation and improvements of operational guidelines, implementation guidelines and documentation- Design and implement Regulatory compliance policies
-
-
ISP Supervisor
-
Oct 2008 - Sep 2012
Re-organize Tellas ISP TeamApply policies and procedures in team activities.Manage day to day activities of the team.Supervise SLAOne and three years budget plansNew ISP Provisioning system (advertised as easy modem installation)Upgrade of ISP EnvironmentIntegration of new Load Balancers (F5 BigIP)Doubled usage of Tellas services from our customers
-
-
Senior Provisioning Analyst and Developer
-
Sep 2006 - Oct 2008
Designed the company's procedure and the relevant work flows for the Full LLU (Zisto, Tellas Double Play products).Design and analysis monitoring and reporting tool for client's LLU and line malfunction applications.Design and implement NRDBP client application.Various reporting tools.
-
-
-
Tellas
-
Telecommunications
-
1 - 100 Employee
-
Application Operation Team Leader
-
May 2005 - Sep 2006
Team Leader of Provisioning, Commissioning and Fraud Management systems team. Area of responsibilities: Applications run-time administration, Applications Operation, Performance optimisation, Change management. Support and coach team members personal development. Team Leader of Provisioning, Commissioning and Fraud Management systems team. Area of responsibilities: Applications run-time administration, Applications Operation, Performance optimisation, Change management. Support and coach team members personal development.
-
-
-
-
Head of IT
-
Dec 2001 - Apr 2005
Directly reporting to CEO, developed effective working relationships with key stakeholders and external collaborators. Established all IT policies based on industry standards.Areas of responsibility were:Information systems,Service management,Web Applications,New Technology projects,Business Intelligence,IT security.Key achievements:Establishment of Agile and Waterfall development environments,State of the art custom CMS, Sales support, CRM Integration, ERP RFO.
-
-
-
University of the Aegean
-
Greece
-
Higher Education
-
700 & Above Employee
-
Researcher
-
Nov 1998 - May 2002
-
-
-
-
Unix Internet Development Team Supervisor
-
Jun 2000 - Nov 2001
Lead Unix based Web development teams for B2C and B2B Web ApplicationsCoach new team membersPromote best practices in the teamOrganised team in the most efficient mannerAssign tasks to team membersContinuously improve the quality and productivity of the team and their deliverablesProvide an ongoing maintenance for our applicationsCoordinate projects with Pre-Sales, Sales and Artwork teamsSetup, maintain and keep up-to-date the development, UAT and Production environmentsResponsible for project and resource planningProduce weekly reports
-
-
-
-
Development of Databases
-
Jan 1999 - Jun 1999
Design, build and support MySQL Databases for internal projects.Support Existing Oracle Databases and tasks automation Design, build and support MySQL Databases for internal projects.Support Existing Oracle Databases and tasks automation
-
-
Education
-
2010 - 2013
Ethnikon kai Kapodistriakon Panepistimion Athinon
Master's degree, Business/Managerial Economics -
1991 - 1997
University of the Aegean
Bsc, Mathematics
Community
