Senna Semakula-Buuza

Delivered production platform and SRE work for clients including Coinbase, Ziglu, Permutive, IKEA, 10x Banking and Cisco Webex. Traced a login outage on a multi-tenant SaaS platform to queued Redis jobs and prevented data loss.

Owned operational reliability of shared EKS and AWS platform services across a 75+ account estate. Built account-decommissioning tooling and replaced VPN access with identity-aware AWS Verified Access.

Authored HLD, LLD and architecture decision records for a Control Tower and Landing Zone Accelerator estate. Shipped tenant monitoring and built a self-service developer platform on Backstage, Crossplane and Terraform.

Owned and operated GKE clusters under a streaming platform handling around 80,000 requests a second. Scaled monitoring with Prometheus Operators and cut cloud spend through resource optimisation.

Built and ran the LGTM stack on AKS for 50+ product teams. Routed telemetry through an OpenTelemetry gateway, cutting time to fix incidents by 30% and improving deployment speed by 40%.

Led infrastructure design for an FCA-registered crypto platform's move from GCP to AWS. Cut costs by £50K a month through tuning PromQL queries and metric retention.

Worked on institutional trading infrastructure, including multi-region Kubernetes CI/CD in Go and Terraform CDK, and a drift-detection CRD.

Made microservice deploys 10x faster with a Go alerting service and rolled New Relic out to 50+ teams.

Automated provisioning of 100+ Kubernetes clusters, cutting production readiness from days to hours.

Wrote infrastructure as code for a European satellite-navigation programme, cutting manual setup time by about 80%.

HashiCorp Certified: Terraform Associate (004) certification obtained in July 2026.

Grade: First Class Honours

BSc Computer Science with First Class Honours from King's College London, 2014 to 2017.