Omprakash S.

Member of technical Staff

PayPal

Mar 2023 - Sep 2025 • 2 yrs 6 mos

Architectural Leadership & Strategic Initiatives ● Drove technology innovation and engineering best practices across Zettle organization ● Owned end-to-end architecture decisions impacting millions of merchants globally ● Mentored senior engineers, conducted design reviews, and shaped engineering culture ● Represented team in cross-organizational forums defining technical strategy Backend Book Migration & Scalable System Orchestration ● Led architectural design of highly scalable orchestrator service managing complex migration workows for millions of Zettle merchants ● Designed extensible, fault -tolerant architecture supporting zero-data-loss migration across multiple cohorts ● Owned technical delivery: HLD/LLD, implementation, testing, deployment, and operational monitoring ● Collaborated with Payments, Compliance, and Risk teams ensuring security and regulatory alignment ● Mentored team members on distributed systems design and microservices patterns ● Business Impact: Enabled Zettle's acquisition and merchant onboarding at massive scale AWS Cost Optimization & Operational Excellence ● Spearheaded company-wide cost optimization initiative, achieving 25% cost reduction across entire Zettle infrastructure ● Established AWS optimization guidelines, design review governance, and automated monitoring frameworks ● Drove organizational shift toward operational excellence and resource efficiency ● Business Impact: Multi-million dollar savings; established reusable cost optimization playbook Security Architecture & API Governance Program ● Led security uplift analyzing API-level vulnerabilities across all Zettle services ● Designed and built open API specs service (AWS S3 + CloudFront) for centralized API governance

Senior Software Engineer

Amazon • Tiempo completo

Jan 2018 - Mar 2023 • 5 yrs 2 mos

Large-Scale Data Platform Modernization ● Led migration of ~ 2000 customer data pipelines from legacy Datacraft V1 to V2 platform ● Architected SNS/SQS notication system replacing legacy Lambda-S3 event subscription, improving reliability and scalability ● Developed automation tooling for permission migration across ~ 7500 pipelines enabling zero-touch onboarding ● Built robust migration orchestration patterns handling varying volumes (thousands of events/hour) ● Scale: 7500+ pipelines, millions of data records processed daily, zero customer impact Provenance Tracking System — Innovation in Fulllment Architecture ● Designed and implemented novel provenance tracking solution for multi-warehouse fulllment (600+ FCs across NA, EU, JP , IN) ● Developed proprietary algorithms minimizing inventory loss to ~4% average while enabling nearest -FC delivery optimization ● Successfully launched across 600+ fulllment centers handling thousands of orders/hour with phased rollout strategy ● Led team of 8 engineers through architectural design, implementation, code reviews, and operational delivery ● Received "Master of Delivery" Award for execution excellence and organizational impact ● Business Impact: Reduced fulllment costs by millions while improving customer delivery times FulllmentOS — Microservices Orchestration Platform ● Designed Inbound Production Segment (IPS), a tier-1 service in plugin-based orchestration system ● Architected interactions with ecosystem services (work -cell, routing, inventory) enabling business feature velocity ● Established architectural patterns and code review standards for team ● Organizational Impact: Reduced feature delivery time by 30% through platform abstraction Warehouse Management System — Monolith to Microservices Transformation ● Conceptualized microservices architecture breaking monolithic VendorFlex system ● Designed functional and business domain boundaries