# Tejpal A. > Principal Software Engineer | Distributed Systems • AWS • Applied AI/LLMs | Cloud & Platform Architecture Location: San Francisco Bay Area, United States Profile: https://flows.cv/tejpal I am a Principal Software Engineer with 15+ years of experience architecting large-scale, mission-critical distributed systems and building new cloud-native platforms from the ground up. I specialize in designing highly resilient, event-driven architectures on AWS that support massive data throughput (~1B daily events) and strict reliability requirements. In my current role, I lead technical strategy and platform architecture, guiding multiple engineering teams (15+ engineers) in building new distributed systems as well as modernizing existing ones. I leverage Kafka, microservices, Saga, and CQRS to create scalable workflows that cut processing latency from days to minutes, while maintaining zero data loss and strict SLAs. My focus is engineering excellence, not just feature delivery. I establish Production Readiness standards, enforce reliability-driven design, and drive phased, low-risk execution models that have reduced critical incidents by ~50% and improved release confidence across teams. Applied AI (My Next Focus Area) I am now applying my distributed systems background to applied Generative AI, designing production-grade RAG architectures using Weaviate, LangChain, and optimized retrieval pipelines. I define evaluation metrics, deployment strategies, and secure integration patterns to bring LLM capabilities into enterprise platforms at scale. ## Work Experience ### Principal Software Engineer @ ICE Mortgage Technology Jan 2024 – Present | San Francisco Bay Area 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. ### Staff Software Engineer @ ICE Mortgage Technology Jan 2019 – Present | San Francisco Bay Area ### Senior Software Engineer @ ICE Mortgage Technology Jan 2016 – Jan 2019 | San Francisco Bay Area ### Senior Software Engineer @ ADP Jan 2015 – Jan 2016 | Greater Los Angeles Area Led the transition of a monolithic payroll application to a microservices architecture, reducing deployment cycles by 40%. Designed a high-throughput data aggregation system using Java and SQL, improving data processing efficiency by 30%. ### Senior Software Engineer @ Google Jan 2013 – Jan 2015 | Mountain View, CA 94043 Engineered scalable Java-based backend services to support high-traffic internal tools, ensuring 99.9% uptime. Collaborated with cross-functional teams to integrate new features into the data pipeline. ### Senior Software Engineer @ Amgen Jan 2010 – Jan 2013 | Greater Los Angeles Area Led an ASP.NET MVC Web App migration, improving response times by 30% and reducing system failures by 15%. Developed C# plugins and REST/SOAP services that improved interoperability across internal systems. ### Software Developer @ Microsoft Jan 2009 – Jan 2010 | Greater Seattle Area Developed reusable C# software components and led system performance monitoring, improving application response time by 20%. ### Software Developer @ QP Semiconductor Inc Jan 2008 – Jan 2009 | Santa Clara - CA ### Junior Software Developer @ Publix Super Markets Jan 2007 – Jan 2008 | Lakeland, Florida Area ## Education ### Master of Science - MS in Electrical and Computer Engineering New York Institute of Technology ### Bachelor of Engineering - BE in Electrical Engineering SVIT, Vasad Official ## Contact & Social - LinkedIn: https://linkedin.com/in/tejpalsinh --- Source: https://flows.cv/tejpal JSON Resume: https://flows.cv/tejpal/resume.json Last updated: 2026-04-12