As Web Lead for Loblaws Digital Telemetry, I architected and developed a cross-platform telemetry SDK package (Node.js / Next.js) using low-level OpenTelemetry APIs, which was adopted across multiple lines of business (LOBs) within Loblaws Digital. I proposed scalable web architecture, SDK structure, data flows, and Grafana dashboard POC to leadership and executive team across LOBs, platforms, and affiliated projects. I co-led technical design conversations with engineering leads to collect requirements and alignment on instrumentation strategy and telemetry adoption. I implemented core telemetry events and instrumentation patterns (traces, metrics, logs), ensuring compatibility with both server-side (Node) and client-side (browser) runtimes. I abstracted differences in LOB-specific needs, Next.js features/versions, and runtime environments to deliver a flexible and reusable SDK. I built a zustand-powered state store with historical state tracking to enrich trace context and frontend observability. I designed and developed custom data transformation logic to feed into the broader VictoriaMetrics, Tempo, and Grafana observability stack. This enabled organization-wide insights into performance metrics including page load durations, frontend error rates, and SLO breaches — with emphasis on actionable P95 latency breakdowns and user-centric diagnostics.