Sunil

Senior Software Engineer, Platform

Own the APM eligibility integration for a global checkout experience across 200+ markets — from a GraphQL eligibility service through container rendering — cutting redundant provisioning calls by ~45%.. Architected a payment-method container transformer with a hybrid caching strategy (in-memory LRU over a distributed cache), sustaining 1M+ concurrent users while raising cache hit rate to ~95% and reducing p95 render latency ~40%.. Consolidated fragmented eligibility logic behind a single transformer contract, reducing cross-component coupling ~50% and standardizing how downstream teams consume payment data.. Led the end-to-end migration of currency-comparison and exchange-rate pages across 11 European countries and 13 locales from a legacy CMS to a modern headless CMS — delivering 100% feature parity with zero downtime.. Authored the architecture decision record and SSR design spec that became the platform team’s adopted standard for server-side data fetching.. Designed and shipped a first-class server-side rendering (SSR) hook API and CLI integration, replacing 13 duplicated locale implementations with one hook-driven path and eliminating ~90% of duplicated code.. Designed and built a CMS mono-repo (rendering engine + client SDK) powering 100+ engineering teams across 200+ countries and 40+ languages, reducing new-team integration effort ~60%.. Drove edge migration to Cloudflare Workers as part of a multi-vendor CDN consolidation — collapsing multiple CDN vendors into one and cutting edge cold-start latency ~30%.. Built content-token infrastructure and preview-URL tooling for authoring; designed a bulk-ingestion workflow and caught atomicity/rollback gaps in design review, preventing data-integrity issues at scale.. Automated a manual CDN promotion process into a CI pipeline, eliminating ~90% of deployment errors and cutting deploy time ~95% (hours to minutes).. Stood up an observability stack (Datadog, Splunk, OpenTelemetry) for proactive monitoring — shipped 100% of major releases with zero critical production incidents and cut mean time to detection ~60%.. Drove down static-analysis findings across platform repos ~70%, measurably raising reliability and security posture.. Act as de-facto tech lead across 5+ concurrent initiatives, owning delivery from architecture through release and aligning operations, SEO, marketing, and product stakeholders.. Perform staff-level code reviews across SSR APIs, CI/CD pipeline configuration, and shared component libraries — codifying reusable patterns adopted across 100% of platform teams.. Reduced new-engineer onboarding time ~40% through structured knowledge transfer and documentation; enabled the operations team to run 100% of weekly production releases independently.. Pioneered an llms.txt / AEO strategy ahead of industry adoption — built a Python service generating market-scoped llms.txt variants from CMS metadata, nearly doubling answer coverage from 33% to 63% (~90% relative gain) against a 30-question evaluation framework.. Built an internal AI agent with secure access to issue-tracking and code systems, cutting engineer context-switching and accelerating knowledge-base creation.