Santanu Bhattacharya

Building the next generation of multi-cloud open source based observability platfrom for GEICO. Building the A team to realize the vision.

As the Head of Telemetry and Monitoring at eBay, I oversaw the development, engineering, and implementation of a robust telemetry and AI platform at an enterprise scale. I led a globally distributed team in realizing the vision of constructing and managing log, metric, and distributed tracing platforms internally, facilitating the processing of a daily volume ranging from 2 to 4 PB of application logs, events, 20 billion active time series, and traces. Notably, our achievements included the creation of a Planet-scale metric platform (eBay's implementation of Google's Monarch paper recommendations) and the adoption of the Open Telemetry standard across the technology stack during my tenure. The role also involves leading a dedicated team of SRE-focused AIML engineers in Shanghai and over the same timeframe we improved the accuracy of causality analytics from <70% to >90%.

I was the driving force behind the product strategy, incubation, engineering, buildout, and organization-wise adoption of the enterprise-scale Observability Platform Service at Visa. Under my leadership, my team has built the OperA Platform for processing metric, log, & and distributed traces to enabled real-time analytics, anomaly detection, and better command center tooling for the Reliability Engineering teams. The platform is now enabling the next generation of Payment products at Visa (Visa Token Service, Visa Direct, and Open VisaNet)

As the leader, I played a key role in the program for shipping Visa's inaugural white-labeled issuer app. Visa Digital Commerce App (VDCA) has enabled a comprehensive mobile application offering an array of pre-configured features such as transaction alerts, mobile transaction control, mobile wallet, proximity payment, pre-paid card management, mobile check deposits, and additional functionalities. With the successful onboarding of the first 25 issuers, VDCA now boasts a thriving portfolio of issuing banks and its consumers, catering to emerging markets and earning recognition as one of the leaders in this category.

Unified Notification Platfrom [UNP] - is in the center of PayaPal's mobile strategy and the key plafrom enabler for providing product notifications across all supported channels i.e. web, mobile (SMS/Push), Instant payment notification.

Sherlock monitoring platform was developed to enhance PayPal’s technology goal to improve PayPal’s site availability by near real-time detection of site issues. Sherlock monitoring platform has significantly enhanced operation’s command and control by powering the command center wall displays, self-service monitoring dashboards, superior detection algorithms, and real-time alerting capabilities.

This was a major rewrite of PayPal’s Payments processing stack (a.k.a Payments 2.0) to become a continuously available (CA) infrastructure. This was one of the top strategic initiatives that overhauled PayPal’s payment stack having deep as well as wide impact to help PayPal grow and support incremental Payment volume (TPV) and improved overall system availability.

I spearheaded the high visibility program for the development of a novel merchant-branded checkout experience utilizing PayPal's DCC APIs. This initiative also marked the pioneering introduction of the first lightbox-based UX tailored for PayPal, with a focus on emerging markets. Through a series of usability exercises and A/B testing, we enhanced product capabilities and successfully launched the product MVP within a remarkable timeframe of under 8 months. Hosted Sole Solution (HSS, H3S), Verified by Visa (VbV), GAPX – Global Acquiring Product Expansion (EU,APAC), International Virtual Terminal (France), Risk Flexible Reserves, Unified Onboarding.

In the early stages of my career, I undertook the following projects, initially as an individual contributor and later transitioning into leadership and managerial roles: 1) Managed the implementation and product setup of Commercial Cards: IntelliLink R.1.0-1.3. 2) Led the development of a Backoffice adjustment system, ROL, as part of an offshore program. 3) Performed production proof of concept and trial phases for the Qualified Payment Card Agent (QPCA) project, which subsequently evolved into a significant vertical within Visa. 4) Oversaw the implementation and maintenance of Visa Online (VOL), which serves as Visa's B2B portal. 5) Contributed to the development efforts for Visanet Access Point (VAP) and Extended Access (EA) - Visa's network edge device.

In my role as the Technical Account Manager (TAM) for customer sucess at Visa, I held accountability for overseeing architecture, conducting business analysis, and managing customer engagement for large-scale managed services. Over the course of two years, I facilitated the realization of an additional $15 million in consulting business revenue. Furthermore, I successfully executed pivotal customer engagements for CyberSource LLC, Authorized.net, which was subsequently acquired by Visa.