Simplifying and transforming a data legacy platform from IBM in order to integrate it into the strategic enterprise platform for data and analytics.

It allows all stakeholders to have access to the curated data and provide a single source of truth for finance, labour, sales, operational excellence etc...

700+ applications and their databases are moved to this data platform resulting in a massive simplification of tools used, improved reporting accuracy and cost cutting through pooling and centralisation of resources.
Simplifying and transforming a data legacy platform from IBM in order to integrate it into the strategic enterprise platform for data and analytics.

I was involved in two strategic applications as a Lead DevOps in the CTO, and as a Lead Data Engineer in the CDO. Using R to builtd ETL pipelines gathering financial, labour, operational excellence (etc...) data from various databases (DB2 and PostgreSQL), cleaning and shaping it, as well as improving the pipelines' performance for dealing with millions of rows (reusable code is then put inside R/Python packages).
Those pipelines, once tested, are scheduled with Apache Airflow/Argo Workflows, and run on a kubernetes cluster on IBM/Azure cloud.
Provisioning of nodes, deployment automation and monitoring of the various pods making up the final solution.
The data is then analysed, and we build the correct visualisations with Apache Superset/Javascript/Power BI to support IBM/Kyndryl executives to ask the relevant questions. Various Machine Learning algorithms are then applied to the data to provide predictive insight.

Responsible for the end-to-end delivery of IT services for an international retail account.
Day to day functional guidance to various teams (UNIX administrators, Oracle administrators, LDAP administrators etc...) totalling ~ 300 administrators on an infra of ~ 15K servers with various operating systems such as AIX, HP-UX, and RHEL.
Ensuring that service levels are maintained and continually improved, and that any problems with the day-to-day delivery of services are minimised. Broadest authority on the technical strategic direction of the client's infrastructure.