Hernan Diaz

Product Engineer with deep expertise in distributed systems and full-stack development. Specializing in React ecosystem, TypeScript, and cloud infrastructure, with advanced knowledge in performance optimization and system scalability.

Currently architecting environmental intelligence platforms processing 50-100GB spatial datasets and developing AI-powered healthcare solutions. Implemented event-driven architectures using AWS services (Lambda, SQS, SNS) and vector databases for semantic search capabilities.

Previous achievements include reducing banking customer dropout by 10% at HSBC, developing government-scale booking systems for Singapore GovTech, and implementing computer vision solutions using TensorFlow and OpenCV. Strong foundation in mechatronic engineering complementing modern web development expertise.

Technical focus includes distributed systems architecture, cloud infrastructure design, and ML/AI integration patterns, while maintaining a domain-driven design approach and emphasis on maintainable architecture.

  • LinkedIn
  • Github

  1. Pollen Digital — Product Engineer

    Sydney, Australia

    Developed large-scale environmental intelligence platform and AI-powered healthcare solutions. Architecting and implementing distributed systems processing 50-100GB spatial datasets, while driving technical improvements across the stack.

    • Played a key role in developing large-scale environmental data processing system handling 500M+ row PostGIS tables
    • Orchestrated AWS infrastructure using CDK for distributed processing of environmental data
    • Led frontend migration to Vite and monorepo setup, reducing test execution time by 30-40%
    • Developed LLM-powered healthcare knowledge base with semantic search capabilities
    • Implemented comprehensive CI/CD pipelines with AWS CodeBuild and CodePipeline

  2. PALO IT — Full-Stack Engineer

    Sydney, Australia

    Delivered high-impact solutions across finance, government, and investment sectors. Led development of customer-facing platforms focusing on user experience, compliance, and scalability.

    • Improved HSBC customer onboarding platform achieving 10% reduction in abandonment rate
    • Developed administrative portal for Singapore Government implementing complex resource management
    • Architected dynamic content management system with automated multi-region deployment for MA Financial
    • Built type-safe APIs and reusable component libraries for enterprise applications

  3. IES Online — Software Developer

    Medellín, Colombia

    Led technical implementation of computer vision solutions and entertainment device interfaces, bridging hardware-software integration with robust monitoring systems.

    • Implemented computer vision solutions using OpenCV, TensorFlow, and CNNs
    • Developed entertainment device interfaces using C++ and Qt framework
    • Built performance monitoring tools for vision processing systems
    • Led cross-functional collaboration between platform and electronics teams

Feature Projects

  • A close up of a tablet screen of a LinkTree clone with a gradient background.

    OpenLink

    Performance-optimized LinkTree alternative built with Astro. Features automated deployment and scalable architecture.

    • Astro
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    • TypeScript
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    • Github Actions
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    • Cloudflare
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