I Build Intelligent Systems That Scale.

Founder, product architect, and AI systems builder. Enterprise experience. Startup execution.

From Enterprise Scale to Founder Execution

Efren Macasaet brings enterprise engineering experience from Expedia Group, Walmart, CNN, and Shutterstock to AI-powered product development as a founder.

Enterprise Foundation

Expedia GroupWalmartCNNShutterstock

Inside these environments, I led large-scale system initiatives, solved complex platform challenges, and aligned cross-functional teams.

Founder Execution

Now I build AI-powered products that are:

  • High-trust
  • Explainable
  • Structured
  • Scalable from day one

What I Build

AI-powered products built from zero to production — including SearchStrata.com, HomeForPup.com, CoffeeBrewNotes.com, and ExpatHelpers.com.

SearchStrata.com

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AI-powered strata (condominium) document analysis platform designed to help buyers and property owners quickly understand complex strata packages.

  • Upload and analyze strata documents (PDF/ZIP)
  • Extract financial health indicators (CRF, budgets, special levies)
  • Flag litigation, disputes, building condition risks
  • Analyze insurance coverage
  • AI-powered Q&A over uploaded documents
  • Citation-backed responses for trust and explainability

Founder & Product Architect

HomeForPup.com

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Community-driven platform for pet owners and breeders.

  • Product-first marketplace thinking
  • Community design
  • User engagement architecture
  • Founder-led product strategy

Founder & Product Architect

CoffeeBrewNotes.com

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Mobile-first brewing journal and analytics platform for home coffee enthusiasts — log brews in seconds and discover what makes your best cups great.

  • Quick brew logging with smart defaults and grinder memory
  • Bean library with roast dates, freshness tracking, and brew history
  • Analytics dashboard with heatmaps, score trends, and bean leaderboards
  • Built-in timer with lap support and method-specific presets
  • Offline-first architecture with automatic sync

Founder & Product Architect

ExpatHelpers.com

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Resource platform helping expats navigate relocation, legal, and lifestyle challenges abroad.

  • Curated relocation guides and country-specific resources
  • Community-driven advice and local expert connections
  • Practical tools for visa, housing, and cost-of-living planning

Founder & Product Architect

Enterprise Experience

Platform engineering and distributed systems experience at Expedia Group, Walmart, CNN, and Shutterstock — proven at enterprise scale.

Expedia Group

Built and contributed to large-scale platform initiatives across distributed systems and data ecosystems.

Walmart

Worked within one of the world's largest retail infrastructures, navigating scale, performance, and reliability challenges.

CNN

Operated in high-traffic, media-scale systems where resilience and uptime are critical.

Shutterstock

Contributed to content platform systems powering one of the world's largest creative marketplaces.

Global Experience

Building products and leading teams across Singapore, Hong Kong, London, Toronto, and Vancouver — adapting to diverse cultures, regulations, and user expectations.

SingaporeHong KongLondonTorontoVancouver

How I Think

Design principles centered on trusted AI, platform thinking, and systems that compound in value — guiding every product and architecture decision.

AI must increase clarity, not hallucinate confidence.

Trust is the foundation of intelligent systems.

Platforms outperform isolated tools.

Scale exposes architectural shortcuts.

Founder velocity comes from technical depth.

Writing & Insights

Perspectives on trusted AI systems, platform unification, context-aware data ecosystems, governance, and long-term systems design.

Trusted AI Systems

Building AI that users can verify and trust. Why explainability isn't optional — it's the product.

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Platform Unification

Why unified platforms beat point solutions. The compounding advantage of shared infrastructure.

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Context-Aware Data Ecosystems

Designing data systems that understand context, not just store records. Making data work harder.

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Governance as Leverage

Using governance to accelerate, not slow down. Turning compliance into a competitive advantage.

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Long-Term Systems Design

Architecting for the decade, not the quarter. Building systems that compound in value over time.

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Core Competencies

Deep expertise spanning AI system architecture, RAG, structured document intelligence, platform strategy, explainable AI design, and scalable SaaS architecture.

AI System ArchitectureRetrieval-Augmented Generation (RAG)Structured Document IntelligencePlatform StrategyEnterprise-to-Startup TranslationExplainable AI DesignScalable SaaS ArchitectureProduct Vision & Execution

Frequently Asked Questions

Common questions about Efren Macasaet's work, expertise, and approach to AI product development.

What does Efren Macasaet specialize in?

Efren Macasaet specializes in AI product development and systems architecture, with deep expertise in large language models (LLMs), retrieval-augmented generation (RAG), AI agents, and scalable SaaS platforms. He combines enterprise engineering experience with founder execution to build intelligent systems at scale.

What products has Efren Macasaet built?

Efren has founded and built several AI-powered products: SearchStrata.com, an AI-powered strata document analysis platform; HomeForPup.com, a community-driven platform for pet owners and breeders; CoffeeBrewNotes.com, a mobile-first brewing journal and analytics platform; and ExpatHelpers.com, a resource platform for expats navigating relocation abroad.

What is his approach to AI development?

Efren builds AI systems that are high-trust, explainable, and structured. He believes AI must increase clarity rather than hallucinate confidence, and designs citation-backed responses for trust and explainability. Every system is architected to be scalable from day one.

Where has Efren Macasaet worked?

Efren has enterprise experience at Expedia Group, Walmart, CNN, and Shutterstock, where he led large-scale platform initiatives across distributed systems and data ecosystems. He has built products and led teams across Singapore, Hong Kong, London, Toronto, and Vancouver.

What is SearchStrata.com?

SearchStrata.com is an AI-powered strata (condominium) document analysis platform that helps buyers and property owners understand complex strata packages. It uses RAG to extract financial health indicators, flag litigation risks, analyze insurance coverage, and provide citation-backed AI Q&A over uploaded documents.

What are Efren Macasaet's core competencies?

His core competencies include AI System Architecture, Retrieval-Augmented Generation (RAG), Structured Document Intelligence, Platform Strategy, Enterprise-to-Startup Translation, Explainable AI Design, Scalable SaaS Architecture, and Product Vision & Execution.

How can you contact Efren Macasaet?

You can reach Efren Macasaet via email at efren@iwoork.com or connect with him on LinkedIn at linkedin.com/in/efrenmacasaet. His open-source work is available on GitHub at github.com/efrenmacasaet.