DIMITRIOS PAPANIKOLAOU
Cloud DevOps Engineer at Mainlevel Consulting- Claim this Profile
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Topline Score
Bio
Credentials
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Cisco Network Security: Intrusion Detection and Prevention
LinkedInMar, 2021- Oct, 2024 -
Security Testing Essential Training
LinkedInOct, 2020- Oct, 2024 -
OWASP Top 10: #9 Components with Known Vulnerabilities and #10 Insufficient Logging and Monitoring
LinkedInApr, 2020- Oct, 2024 -
Windows Server 2016: Active Directory Enterprise Infrastructure
LinkedInDec, 2019- Oct, 2024 -
CCNA Cert Prep: ICND2
LinkedInJun, 2019- Oct, 2024 -
CCNA Security (210-260) Cert Prep: 3 VPN
LinkedInMay, 2019- Oct, 2024 -
Cert Prep: Cisco Certified Entry Networking Technician (100-105)
LinkedInApr, 2019- Oct, 2024 -
Certified Ethical Hacker (CEH)
EC-CouncilJun, 2020- Oct, 2024 -
Cisco Certified Network Associate Routing and Switching (CCNA)
CiscoJun, 2019- Oct, 2024 -
Sonicwall Network Security Administrator (SNSA)
SonicWallMay, 2020- Oct, 2024 -
Security Technical Certification
F-Secure Corporation
Experience
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Mainlevel Consulting
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Germany
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Business Consulting and Services
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1 - 100 Employee
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Cloud DevOps Engineer
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Feb 2022 - Present
- Agile & Kanban Methodology in the Team - Building and setting up new deployments with containerized applications in Kubernetes using Docker - Created & Maintained automated CI/CD pipelines for code deployment using GitLab CI while automating the deployment process and reducing the manual tasks - Continuously enhancing, operating, and monitoring our Kubernetes-based cloud platform - Take responsibility for our Cloud Infrastructure & Automation with provisioning nodes and features using Terraform & Ansible - Ensuring application security by performing vulnerability assessments and security testing - Guaranteeing our quality by defining and implementing tests and documentation Show less
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Pfizer
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Events Services
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1 - 100 Employee
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Senior Network Automation Engineer
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Mar 2021 - Feb 2022
- Agile & Scrum Methodology - Global Remote Access Services (VPN Tunneling, Load Balancing) - Firewall Engineering (Palo Alto, Checkpoint) - Assist and collaborate with other teams in the development of tools for Cloud Infrastructure Automation using Python Scripting. - Automated manual tasks using Python Scripting to improve the efficiency of working tasks. - Research, development, and deployment of new Cloud Services, Technologies and features (AWS, Azure) - Support defined periodic failover testing to ensure business continuity. - Collaborate with cross-organizational teams, FW engineering, Network Operations, Global Information Security, DDI engineering to develop global standards for Cloud services. - Enhanced Cybersecurity Awareness by performing vulnerability assessment and risk management. Show less
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AXSOS AG
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Germany
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Information Technology & Services
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1 - 100 Employee
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Network System Engineer
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Oct 2018 - Mar 2021
- Directed the connectivity of 85 retail locations and resolved any Network based issues - Optimize user compliance, device usage acceptability and network allowance - Augmented profit margins by deploying effective Security Projects and implementing Strategies to Data Security - Worked with ITIL Incident management procedures and root cause analysis. - Designed and deployed firewalls from Sonic Wall, including next generation features, site-to-site VPNs - Integrated and maintained Virtual (Azure) & Enterprise firewalls for 135 small units and 12 main units - Involved in Firewall & Security Services as Managed Services for SMB Customers - Troubleshooting: TCP dumps, VoIP and packet capture analysis Show less
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3digits.gr
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Greece
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Graphic Design
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System Administrator
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Sep 2016 - Feb 2017
- Documented administration problems and resolutions for future reference - Lead tech on hardware roll out with two subordinates - Troubleshooting on Hardware issues, Client Devices & Networks - Leveraged PowerShell to automate tasks and maximize productivity - Planned, implemented, and maintained a Windows domain based infrastructure - Regularly evaluated servers and successfully maintained uptime of 97% - Documented administration problems and resolutions for future reference - Lead tech on hardware roll out with two subordinates - Troubleshooting on Hardware issues, Client Devices & Networks - Leveraged PowerShell to automate tasks and maximize productivity - Planned, implemented, and maintained a Windows domain based infrastructure - Regularly evaluated servers and successfully maintained uptime of 97%
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Global Tech
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United Kingdom
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Information Technology & Services
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Technical Support
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Sep 2015 - Aug 2016
- Resolved customer complaints and concerns with strong verbal and negotiation skills. - Optimize the efficient elasticity of the servers and client retention, by monitoring server room, and end users compliance - Worked within the corporate Active Directory and Group policy environment, performing resource provisioning and troubleshooting - Performed hardware and software installation and provides high-level customer care, consulting, and support. - Resolved customer complaints and concerns with strong verbal and negotiation skills. - Optimize the efficient elasticity of the servers and client retention, by monitoring server room, and end users compliance - Worked within the corporate Active Directory and Group policy environment, performing resource provisioning and troubleshooting - Performed hardware and software installation and provides high-level customer care, consulting, and support.
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Education
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2019 - 2021
University of Macedonia
MSC Computer Science, Computer Systems Networking and Technologies -
2011 - 2017
University of Macedonia
Applied Information Technology, Information Technology
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