Team Overview: Lead routing and security for outbound PSTN voice calls, optimizing carrier selection for call completion while enforcing global regulatory compliance and fraud prevention.

Core Impact & Achievements:

Systems Resilience & High Availability

Architected an End-to-End Resiliency Strategy; authored the company-wide "Resilience by Design" playbook for load shedding and backpressure.

Implemented adaptive load-shedding (AIMD algorithm) across core voice services, successfully stabilizing the platform during Sev0 traffic surges.

Designed a Quality of Service (QoS) system to prioritize retail traffic over wholesale during peak events, ensuring critical SLAs remain intact.

Developed a "Degraded Mode" fail-open architecture for attestation services, ensuring 99.99%+ availability during downstream outages.

Platform Modernization & Cloud Infrastructure

Led the zero-downtime migration of configuration databases from self-managed MySQL to AWS Aurora for 8 distinct service roles.

Spearheaded the containerization of the Neustar stack, migrating legacy services to Amazon Linux 2023 and modernizing task scheduling.

Upgraded core services to Java 21 and modernized CI/CD pipelines to Buildkite with specialized Maven plugins.

Global Compliance & Security

Engineered a Transit Caller ID Restriction framework to meet international regulations (ACMA, ANATEL), protecting $80M+ in global revenue.

Developed a High-Capacity Failover system that automatically quarantines unhealthy carrier endpoints, reducing manual intervention.

Integrated STIR/SHAKEN attestation filtering for Tier-1 US peering trunks (Verizon/AT&T).

Operational Excellence

Transformed the Do Not Originate (DNO) platform into a self-service UI for Compliance Ops, eliminating weekly engineering toil.

Achieved the first production integration of Amazon MSK (Kafka) for Proxy Core (US-East), enabling real-time analytics for outbound routing.

Led software development team for Walmart Returns System handling millions of item returns daily from 10,500 stores and walmart.com

Designed and developed highly scalable and highly available REST-based web services for Walmart Returns System

Created technical solutions for returns as a service that enabled marketplace sellers to independently handle returns resulting in an increase in revenue by $2M yearly

Implemented extended return windows for Marketplace items during holidays which improved seller NPS

Identified gaps in fraud detection and implemented preventive technical solutions resulting in $5M yearly savings

Drove technical discovery workshops for new initiatives partnering with product, program, business, and UX teams.

Translated requirements into optimized technical solutions based on return on investment and value add to the business.

Mentored 4 engineers by authoring design documents, providing technical direction, brainstorming on complex technical issues, and estimating timelines

Designed and developed highly scalable REST-based web services for iCloud services

Conducted A/B experiments with iCloud ML team on user notification and handled server-side changes for testing

Designed and developed a solution for sharing an iCloud Storage plan with an iCloud user’s family

Designed and developed APIs to be called from the iCloud side for the HomeKit Secure Video feature

Built an A/B experiment framework to capture behavioral responses to notifications sent to users from iCloud

Used H2 database to mock the database layer for testing the oracle implementations in the codebase

Debug and fix issues that occur in production environments

Implement UI changes for the iCloud Storage page on macOS and iOS using HTML and CSS

• Managed the central computer facilities that consists of various operating systems on the entire campus network, the central host computers, and the public computing facilities at the SCS

• Maintained and provided technical support for the printing infrastructure available on the SCS campus