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Hello there, I am Ioannis

Ioannis Pistolas

DevOps Engineer at Raketech

As a dedicated #DevOps engineer, I am fueled by my passion for technology and my constant pursuit of knowledge. I am committed to staying up-to-date with the latest industry trends and advancements, and I approach every project with a mindset of continuous improvement. In addition to my professional work, I am an avid enthusiast of experimenting with new technologies and automation techniques. I have created and maintained a robust homelab environment, where I continuously explore and test new tools and approaches to streamline and optimize processes. With a proven track record of successful DevOps implementations and a commitment to ongoing learning and growth, I am confident in my ability to make a meaningful contribution to any team or organization looking to elevate their technology infrastructure and operations.

Experiences

1
DevOps Engineer
Raketech

August 2023 - Present, Soho office the strand

Raketech is a online affiliate and content marketing company, with expertise in delivering comparison services, online guides, communities and social media products for the online gaming, sports and consumer finance industry.

Responsibilities:
  • Contribute to the development of Raketech’s platform for creating data driven product development
  • Automate workflows to speed up project development
  • Ensure performance and availability of cloud infrastructures
  • Monitor, prevent and resolve incidents across the systems and assets
  • Work closely with Dev team to optimize CI/CD workflows
  • Support in On-Call rotations
DevOps Engineer
Betsson Group

September 2022 - August 2023, Tax Biex, Malta

Betsson Group is one of the world’ s largest gaming groups, at the heart of entertainment for over six decades

Responsibilities:
  • Create and provision new servers for our Infrastructure
  • Manage multiple Wordpress Installations
  • Automate site deployments and create automation scripts
  • Create Documentation for current procedures
2
3
Melita LTD

April 2018 - August 2022, Madliena, Malta

An internet provider that provides Internet, Phone, Mobile and TV services to more than 75% of Maltese households.

Senior Core Network Engineer

June 2020 - August 2022

  • Annual and weekly Budgeting and Forecasting
  • Statistical Analysis of network usage
  • Liaising between Cable and Marketing Department
  • Automating commands for engineer intervention for mistake/error minimization
Core Engineer

June 2019 - June 2020

  • Allocating physical and virtual resources
  • Configuring MFA using Cisco Duo and Checkpoint Firewall
  • Training new recruits
  • Responding to night interventions/on-call
  • Consulting Legal department on user indiscretions
Junior Core Engineer

April 2018 - June 2019

  • Migrating 50% of the network to the new DOCSIS platform
  • Installing and configuring MySQL, Syslog-ng, Kea DHCP, Grafana and pmacct
  • Designing Custom Perl Scripts using SNMP and SSH to monitor servers/routers
  • Generating daily/weekly reports
Internship
Prisma Electronics SA

May 2015 - November 2015, Alexandroupolis, Greece

Prisma Electronics provides technology-based solutions for businesses and organizations. Through its R&D and technical divisions Prisma Electronics designs, develops, and manufactures a wide array of IT, smart-grid and wireless-based systems, and integrated electronic components.

Responsibilities:
  • Creating MySQL database for new company platform
  • PoC of Displaying the data of MySQL using Syncfusion
  • Researching Cloud Computing developments
4

Skills

AWS
AWS

Configuration of EC2 instances, ELB, VPC, RDS through the AWS GUI. Troubleshoot of connectivity issues. Configuration of tunnels between Azure and AWS for AD sync.
Cloud Providers
Cloud Providers

Creation VMs, Firewalls and services on DigitalOcean, Hetzner and Linode. User access management and firewall rules configuration. Usage of APIs for task automation.
Docker
Docker

Custom Images creation, containers orchestration with Docker Compose and Swarm. Usage of containers to monitor host and other containers.
Linux
Linux

Installation and administration of Ubuntu (mostly) and CentOS servers. Configuration and hardening of server according to provided specs.
Ansible
Ansible

Usage of community and creation of new playbooks for configuration of servers and Cloud Providers. Provision services up to containers.
Git
Git

Installation of GitLab runner on instances, connection with SaaS GitLab and creation of Pipelines for deploying code on the destination server. Troubleshooting failing Pipelines.
Zabbix
Zabbix

Installation and configuration of Zabbix server and clients. Creation of scripts monitoring custom metrics
Perl
Perl

Creation of scripts for monitor infrastructure using SNMP, parsing current router configuration and creation of new configuration commands based on few user inputs/arguments.
Terraform
Terraform

Ability to work with Terraform Cloud to create new environments for AWS deployments.
PHP
PHP

Usage of PHP to automate of user creation on websites, installation and updating of plugins. Parsing Cloud Providers’ configuration and inventory files creation.
Bash
Bash

Living and breathing on Linux CLI, automating tasks using bash commands and simple (quick) scripts.
Cloudflare
Cloudflare

DNS management, cache and SSL certificates configuration for different domains,Cloudflare WAF rules an zero trust configuration and Active Directory authorization. Troubleshooting performance issues with site speed and cache performance.
Grafana
Grafana

Setting up and configuration of Grafana server both as service and container. Custom panel creation for displaying metrics.
Portainer
Portainer

Orchestration and management of Docker containers.
Vector/Syslog-ng
Vector/Syslog-ng

Configuration for log scraping and shipping to ingester, both from host and containers.
Loki
Loki

Combination with Vector/Syslog for storing logs and displaying in Grafana.
NGINX/Apache
NGINX/Apache

Configuration of webserver, proxy operation, SSL termination
Mysql
Mysql

Creation and management of databases and tables for different projects. Migration of Databases between server and fine tuning.
Wordpress
Wordpress

Site creation and management. User and plugin configuration from GUI and wp-cli. Troubleshooting issues and site migration on new servers.
Proxmox/VMWare
Proxmox/VMWare

Virtual Machines and containers creation using both Hypervisors. Creation of internal and external networks.
pfSense/Checkpoint FW
pfSense/Checkpoint FW

Installation and configuration of firewalls. Rules creation for allowing or blocking traffic. Installing services like WireGuard, OpenVPN etc.
Networking
Networking

Advanced network configurations architect as part of ISP infrastructure. Troubleshooting of low and high level issues. Knowledge of advanced networking concepts.
Cisco
Cisco

Setup and configuration of Enterprise Routers and Switches, cabling and physical mounting in racks.
Azure
Azure

Creation of Servers, Tunnels and Applications for communication between AWS and Active Directory
Crowdstrike
Crowdstrike

Configuration of sensor for Linux, Windows and MAC endpoints/servers. Checking the alerts/incidents and cleaning infections. Connecting AWS,GCP and Azure for collecting cloud misconfigurations.

Education
University of Western Macedonia - Department of Informatics and Telecommunications Engineering
August, 2010 - March, 2018
MSc. Information and Telecommunication Engineer

Achievements

1,000 Mbps internet available nationwide