Nikitas Xenakis.

Nikitas Xenakis.

Principal Solutions Architect

Co-op

Biography

Nikitas is a Principal Solutions Architect with 20+ years of experience in architecture, design and implementation of large enterprise-scale, business-critical solutions, underpinned by Oracle Database and Middleware technologies in a 24x7x365 real-time, multi-business, multi-platform, multi-site, multi-cloud technology and application landscape. Passionate about technology, active member in Beta, CAB, ACE and Global Leader programs, frequent speaker at OOW, UKOUG, DOAG and other international conferences

Papers

Moving Business-Critical Java Applications to Oracle Cloud

Event: Connect 2021
Stream: Architecture, Cloud Database & Technology

This session describes the journey of migrating critical custom Java applications from Oracle Fusion Middleware and Oracle Databases running in a private data center to Oracle Cloud Infrastructure. Along the way decisions had to be made at all tiers, from the web tier to the database layer. The Oracle Cloud Infrastructure services evaluated included Load Balancer, Oracle Cloud Infrastructure Web Application Firewall, Oracle Java Cloud, Oracle Cloud Infrastructure Container Engine for Kubernetes, Oracle Database Cloud, and connectivity options. Hear about the cloud architecture and deployment patterns that were considered, the challenges overcome, the benefits, and how Oracle Cloud might apply to your use case.

On-Premises or Oracle Cloud: How to build a Highly Available and Scalable Logistics Platform with Oracle 19c and Goldengate 19c/21c

Event: Connect 2021
Stream: Architecture, Cloud Database & Technology

The Co-op is the UK’s leading convenience retailer, with 15 distribution centers and a turnover of £11.2B, servicing more than 10,000 outlets through its retail, wholesale, franchise and home delivery proposition. This session explores the platform built for its mission-critical logistics network including Oracle Real Application Clusters 19c, Oracle Active Data Guard, Oracle Grid Infrastructure bundled agents, and Database File System (DBFS) combined with Oracle Multitenant and Oracle GoldenGate 19c microservices in a Oracle Maximum Availability Architecture configuration, providing real-time replication between operational and analytical systems and the ability to upgrade without downtime. It also examines how the platform evolved with design and pilot plans to migrate its mission-critical platform to Oracle Cloud and also incorporating Oracle Autonomous Database and OCI GoldenGate 21c into its target deployment reference architecture