Tejpal A.

About Tejpal A.

I am a Principal Software Engineer with 15+ years of experience architecting large-scale,…

Experience

1. Principal Software Engineer

   ICE Mortgage Technology

   Jan 2024 — Present · San Francisco, CA, US

   Enterprise-Scale Distributed Platform (0-to-1): Architected a greenfield, event-driven platform handling ~1 billion daily data events. Designed a decoupled system using Kafka and the Saga Pattern that accelerated core transaction processing by 80% while ensuring data consistency and auditability.GenAI & RAG Architecture: Designed and implemented a production-grade Retrieval-Augmented Generation (RAG) architecture (Weaviate + embeddings). Led the initiative to automate complex document classification and data extraction workflows, deploying pilots and defining the architectural pattern for future AI adoption.Strategic Cloud Modernization: Led the transformation from on-premise infrastructure to an AWS-native strategy. Architected a multi-region HA/DR solution using managed services (RDS, S3) that reduced operational costs by 70% and achieved 99.99% uptime.Technical Strategy & Leadership: Served as the technical anchor for multiple engineering teams. Defined the technical roadmap and enforced a phased delivery strategy, replacing risky \"big bang\" migrations with safer, incremental releases to ensure business continuity.Performance & Resilience: Re-architected critical data ingestion pipelines to use multi-threaded streaming (S3 Multipart), increasing throughput by 300%. Implemented Circuit Breakers to isolate the platform from external dependency failures.Engineering Governance: Established \"Production Readiness\" standards and mandatory design reviews, reducing critical production incidents by ~50% and shifting the engineering culture from reactive fixing to proactive resilience.