\item Led and organised certificate automation initiative; creating, maintaining, and ensuring alignment with desired outcomes, technical limitations, and future maintainability.
\item Created site isolation template to reduce developer burden for Ansible site isolation down to single-digit hours from spec to testing.
\item Mentored team members on automation methodology, idempotency, Ansible, and Terraform.
\item Automated failover and cell isolation for the Online Banking, Investments, and Corporate Services websites, reducing per-cell deployment time from 30 minutes to 90 seconds, including automated acceptance testing.
\item Developed QoS Optimisation for Fixed Broadband, eliminating buffering issues and increasing performance during peak hours by 30\%, resulting in TPG’s Fixed Broadband service being rated 2nd best in the country in 2021.
\item Managed, maintained, and upgraded production Ansible Tower environment, including migration to a resilient multi-site architecture.
\item Developed Ansible automation workflow for upgrade of fibre aggregation nodes with automated pre-checks, post-checks, and rollback; reduced weekly update time from 4 hours to 9-12 minutes.
\item Proposed, designed, and developed a POC path optimization tool in Haskell for Access Networks to reduce manual work required for optical ring optimisation, reducing the hours required for routing new rings tenfold.
\item Designed, implemented, and debugged load-balancing solution for revenue/mediation systems that handle all customer billing, including custom monitoring, automated failover and alerting, and dependency groups.
\item Designed and implemented CRL Sync service between new PKI roots that was used for signing of all internal certificates (2,000+ per year).