George is a leading DevOps engineer, systems architect, strategic advisor, and digital transformation specialist with a strong background in building secure and scalable platforms for small enterprises and SMEs. He has over 16 years of experience in technical roles and 11 years of experience in senior leadership positions, also directing his own consultancy business. George is highly-skilled in Docker, Kubernetes, Cloud, and configuration management solutions.
Delivers CI/CD as part of an agile team in improving performance by automating and streamlining operations and processes.
Helps build and improve infrastructure, application and performance development and ensures tight security including data encryption, security groups, and environment scanning.
Ensures high-quality deliverables and implements DevOps and security best practices in fast-paced environments.
Worked on the redesign and optimization of a .NET core Docker image build process, migrating Jenkins builds to Kubernetes and moving Docker image caching to AWS EFS.
Managed to speed up build times by 40% across the board while saving costs. Developed reusable, highly-available Terraform modules for AWS, S3 cross-zone replication, and EKS clusters with IAM integration using OIDC and Route53 latency-based records for Content Distribution Network (CDN).
Implemented a secure Azure environment in Terraform, as well as privately zoned AKS Kubernetes and high availability SQL Server Enterprise.
Managed to to simplify and secure client's data and speed up client on-boarding by implementing rearchitected AWS cloud environments.
Appplied AWS Transit Gateway in Terraform to partition clients with separate VPCs and designed permission boundaries for AWS IAM roles.
Redesigned Jenkins CI/CD pipelines for reducing team friction, achieving cost reduction and a faster time-to-market. Deployed AWS services using Terraform, AirGapped VPC's using TransitGateway, a Docker application provisioning on EC2, ECS Logstash cluster, and HA cron-jobs using Fargate spot instances and CloudWatch.
Used a 5-node multi-master Kubernetes cluster on VMware to centralize and secure business operations, implementing a high availability on-premises infrastructure platform .
Developed tools to Failover Cisco firewall/switch network routes, transfer domain controller FSMO roles, activate passive DFS fileserver node, switch CNAMEs, and failover AlwaysOn SQL Server databases.
Created a single-sign-on Python analytics environment using JupyterHub, Enterprise Gateway, and Nginx.
Achieved improved efficiency of product development teams by enhancing CI/CD strategies to reduce build times to less than 7 minutes.
Designed internal security policies to align business workflow and processes with data vendor requirements and industry standards.
Migrated services from on-premise to cloud whilst moving away from enterprise stack (Microsoft, VMware, Nutanix) to open-source solutions. Developed infra-as-code templates to deploy scalable and immutable infrastructure for Docker container orchestrators.
Migrated the organisation from email only alerting to RightItNow alert management system using SNMPProxy and ActiveMQ running High Availability on Windows Server. Created failover documentation that was adopted by the software vendor for their official failover documentation.
Designed and deployed a secure offline on-premise accounting domain hosting SAP Business One and CoreSuite Cube.
Developed PowerShell scripts to monitor infrastructure and generate reports. Migrated a small business of 15 people from physical infrastructure to virtualised servers running on HA VMware cluster.
