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I have about ten years of experience building end-to-end mobile experiences, starting with full-stack work on patient portals at HTD Health and moving into AI-driven education tools at Human Interest before landing as a Staff Full Stack Mobile App Engineer at Discord. Today I focus on shipping cross-platform Flutter and React Native apps, building modular component libraries to accelerate feature delivery, and designing reliable APIs and data pipelines that power real-time analytics.…I have about ten years of experience building end-to-end mobile experiences, starting with full-stack work on patient portals at HTD Health and moving into AI-driven education tools at Human Interest before landing as a Staff Full Stack Mobile App Engineer at Discord. Today I focus on shipping cross-platform Flutter and React Native apps, building modular component libraries to accelerate feature delivery, and designing reliable APIs and data pipelines that power real-time analytics.

Guillermo Diaz

Full Stack Developer, Web Developer, Back-End Developer, +2

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I have about ten years of experience building end-to-end mobile experiences, starting with full-stack work on patient portals at HTD Health and moving into AI-driven education tools at Human Interest before landing as a Staff Full Stack Mobile App Engineer at Discord. Today I focus on shipping cross-platform Flutter and React Native apps, building modular component libraries to accelerate feature delivery, and designing reliable APIs and data pipelines that power real-time analytics.…I have about ten years of experience building end-to-end mobile experiences, starting with full-stack work on patient portals at HTD Health and moving into AI-driven education tools at Human Interest before landing as a Staff Full Stack Mobile App Engineer at Discord. Today I focus on shipping cross-platform Flutter and React Native apps, building modular component libraries to accelerate feature delivery, and designing reliable APIs and data pipelines that power real-time analytics.

Available to hire

I have about ten years of experience building end-to-end mobile experiences, starting with full-stack work on patient portals at HTD Health and moving into AI-driven education tools at Human Interest before landing as a Staff Full Stack Mobile App Engineer at Discord. Today I focus on shipping cross-platform Flutter and React Native apps, building modular component libraries to accelerate feature delivery, and designing reliable APIs and data pipelines that power real-time analytics.

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Intermediate

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Work Experience

Staff Full Stack Mobile App Engineer at Discord

April 1, 2021 - Present

Spearheaded the design and delivery of a cross-platform mobile app using Flutter and React Native, delivering AI-driven personalized study plans and real-time analytics for educational users; implemented a modular component library to reduce duplication; built RESTful endpoints with FastAPI/Node.js and GraphQL integration; enabled OpenAI GPT-4 based adaptive content and securely persisted data via Azure Blob storage; established CI/CD pipelines and Kubernetes deployment to streamline releases and scale features; improved analytics performance with Redis caching and GraphQL query optimization.

Senior Full Stack Mobile App Engineer at Human Interest

May 1, 2019 - March 1, 2021

Refactored the mobile onboarding into a shared Dart module, reducing onboarding time; scaled the backend Node.js API with Azure Functions; led end-to-end feature development for AI-generated personalized study plans; mentored a team of engineers; introduced Redis caching to reduce query latency; migrated legacy data stores to Azure Cosmos DB and aligned features with curriculum updates for JEE/NEET.

Senior Full Stack Mobile App Engineer at HTD Health

June 1, 2016 - April 1, 2019

Modernized the patient portal UI; automated lab result ingestion with FastAPI services; reduced API response time from 420 ms to 98 ms; transformed backend to a micro-service architecture on Azure Kubernetes Service; implemented OAuth2 with Azure Active Directory; established monitoring with Azure Monitor and Log Analytics for rapid incident triage.