Projects

Projects: AI Automation, Observability & Reliability

10 featured projects across Virtasant, Twilio and Apple, plus freelance and consulting work delivered over the years.

Virtasant Principal SRE · 2024 – now · 4 projects

AUTOMATION

Guard-railed upgrades for a 2000+ machine fleet

Automated fleet upgrades with proper draining of hosts and the necessary guardrails built in, so changes roll out safely and repeatably instead of by hand.

Fleet automationHost drainingGuardrails
VIRTASANT
AI

Automated incident root-cause analysis & response

AI-driven investigation that pulls evidence from documentation search (RAG), metric plugins and log APIs, surfaced through a Slack bot, to find root causes and speed up response.

RAGSlack botIncident response
VIRTASANT
SECURITY

Fleet-wide just-in-time SSH access

Rolled out just-in-time SSH access across the fleet so access is granted when it is needed, strengthening the security landscape.

JIT accessSSHSecurity
VIRTASANT
RELIABILITY

Better observability for SLO tracking

Improved the observability landscape in my current role so service SLOs can be tracked properly and reliability conversations are driven by data.

SLOsDashboardsObservability
VIRTASANT

Twilio Segment Principal Software Engineer · 2022 – 2024 · 4 projects

OBSERVABILITY

Distributed tracing with Grafana Tempo, a first for Segment

Provisioned Grafana Tempo OSS across Twilio Segment to instrument traces for the first time in the infrastructure. Clear data-traffic visibility across multiple Kubernetes clusters helped reduce MTTR by up to 80%.

Grafana TempoTracingKubernetes
TWILIO
COST

Cutting metric costs by up to 50%

Optimised the active series count using the OpenTelemetry Collector and vector.dev, bringing the metric bill down by up to 50%.

OpenTelemetry Collectorvector.devMetrics
TWILIO
SECURITY

Cilium eBPF network identity & security

Ran the POC and implemented Cilium eBPF-based network identity and security services, securing the infrastructure against stray services deployed on production clusters.

CiliumeBPFKubernetes security
TWILIO
OBSERVABILITY

Open-source observability stack

Built and ran a 30M+ active-series platform on Grafana, Prometheus, the OpenTelemetry Collector, Grafana Loki and Tempo, migrating off Datadog.

GrafanaPrometheusOTel CollectorLokiTempo
TWILIO

Apple Cloud Platform Engineer · 2020 – 2021 · 2 projects

DATA MIGRATION

Petabyte-scale warehouse migration to Snowflake

Built transpilation and compilation utilities for migrating a petabyte-scale data warehouse from an older technology to Snowflake.

SnowflakeTranspilersData warehouse
APPLE
AUTOMATION

Airflow-orchestrated migration workflows

Set up and automated workflow execution with Airflow DAGs for data chunking, extraction and migration to Snowflake.

AirflowDAGsSnowflake
APPLE

Freelance & consulting projects

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