Flampeyeiry Diaz

Full-Stack Software Engineer • Product Engineer • Game Developer

I build software end to end: web, mobile, and desktop apps, business systems, developer tools, cloud platforms, interactive applications, and games.

Portrait of Flampeyeiry Diaz

About Me

Who I Am

I'm a full-stack software engineer, product engineer, and game developer based in New York City.

I build software products from 0 to 1, including web, mobile, and desktop applications, business systems, developer tools, interactive applications, and games. My experience spans frontend and backend development, databases, cloud infrastructure, and product delivery.

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Explore My Journey From recreating what inspired me to building products of my own.

My technical background developed through hands-on experimentation, formal education, professional engineering, and years of building different kinds of software. Each stage introduced new challenges that expanded what I could create.

  1. Around age 8 | Early 2000s

    Early Beginnings

    I was introduced to technology at an early age through my mother's internet café, where I began helping with computers as part of our family's day-to-day needs.

    As I grew more interested in websites, online communities, and video games, I wanted to create and customize experiences similar to the ones I enjoyed. I explored existing web projects, modified HTML, CSS, and PHP code, experimented with chat applications and servers, and tried recreating gameplay mechanics using game development tools.

    A lot of my early learning came from experimenting with existing projects, changing things, figuring out what worked, and gradually understanding how to build my own ideas.

    That hands-on, self-directed approach became an important foundation for how I develop software today.

  2. 2010–2014

    Building My Technical Foundations

    At ITESA, a technical high school in the Dominican Republic, I studied programming, databases, computer hardware, networking, and business software development.

    I learned to build desktop applications and database-driven systems using languages and technologies such as C++, C#, Windows Forms, Java, and SQL Server. This gave me a foundation in programming fundamentals, object-oriented design, application logic, and data management.

    Outside the classroom, I continued exploring game development through frameworks such as SDL2 and Allegro, experimenting with gameplay mechanics and building small projects.

    In 2014, I began working with Unity, bringing together my programming education and long-standing interest in creating games.

  3. 2014–2017

    Games, Desktop Software & Developer Tools

    I expanded into Unity/C# game development through projects with Alpha Eve, working on gameplay systems, interactive behaviors, asset integration, testing, and optimization.

    At Soft Dynamic, I made key technology and architecture decisions while developing a low-code desktop editor using Electron, React, JavaScript, Node.js, and PhaserJS.

    The application enabled designers and non-technical users to create interactive training simulations without writing code. They could arrange images and other visual elements, build animation sequences, and configure text, movement, and scene transitions through drag-and-drop interactions and predefined controls.

    The editor included a 2D scene editor, an animation timeline, and code-generation functionality that produced PhaserJS projects behind the scenes. Users could create interactive experiences visually without needing to understand the underlying code.

    I also continued studying software development at ITLA, expanding my knowledge of backend frameworks, databases, and business applications.

    This period was especially important because I was no longer building only applications and games. I was also designing the architecture and developing tools that enabled other people to create interactive software.

  4. 2019–2022

    Engineering Across Different Environments

    My professional experience expanded across backend automation, enterprise web applications, immersive technology, and security operations.

    Through the Hack.Diversity fellowship, I joined Carbon Black, where I developed Go-based testing automation for endpoint security systems, working with isolated virtual machines and CI/CD workflows. I also completed my Associate of Science in Computer Science at Bunker Hill Community College.

    During XR Terra's developer program, I contributed to Unity/C# VR and AR projects, including a crane training simulator developed with a team.

    At BitReel, I worked on an enterprise React/Redux content management system, integrating an existing Python REST API and developing interfaces connected to complex 3D asset workflows and WebXR experiences.

    Later, at InsideTracker, I supported IT and information security operations in a regulated HealthTech environment handling sensitive health and genetic data. My responsibilities included identity and access management (IAM), endpoint security, secure onboarding, and internal systems, working within HIPAA- and SOC 2-aware security and compliance processes.

    These experiences expanded my perspective beyond application development, exposing me to the infrastructure, automation, security, performance, and operational requirements behind real software systems.

  5. 2022–Present

    Building Products End to End

    My recent focus has increasingly shifted toward building software products and experiences for users, including mobile applications, social platforms, games, and developer tools.

    My work combines hands-on engineering with technical ownership. Across different projects and partnerships, I've been responsible for selecting technologies, shaping architecture, defining implementation strategies, and building the software needed to bring product ideas to life.

    I serve as a technology partner for Dominoki, leading the software and digital side of the brand alongside the owner of its physical product. I developed its cross-platform Flutter application for domino scorekeeping, which has completed App Store and Google Play review and is awaiting public launch. My role also includes the technical direction for its future software ecosystem.

    I'm also involved in RedOtaku, a social network focused on anime and otaku communities, primarily in Latin America. My role currently involves technical and product advisory, including mobile development, engineering strategy, security, cloud architecture, and monetization. My recommendations have influenced its transition from React Native toward Flutter, while we plan a future backend and infrastructure modernization using managed and serverless services across platforms such as Cloudflare and AWS.

    Through Fulltrix, I collaborate on game development initiatives involving Unity, Unreal Engine, and Fortnite/UEFN. My contributions include technical decisions, development strategy, gameplay systems, and engineering implementation, working alongside a creative partner to turn ideas into interactive experiences.

    I've also built and published Some Survival, a Unity/C# mobile game for iOS and Android, and created Aseprite Slice Exporter, an open-source Lua extension that automates image slice exports.

    More recently, I've been developing experimental language and editor tooling for Unreal Engine, exploring code generation and custom development workflows.

    My earlier freelance and client work also includes production websites, custom WordPress functionality, and business applications, giving me experience across frontend, backend, databases, cloud deployments, and production troubleshooting.

Why I Work Across Different Technologies

My technical background didn't come from trying to learn every programming language or framework. It grew from the different kinds of software I wanted to create and the problems I encountered along the way.

Building business applications strengthened my understanding of data, application architecture, and workflows. Game development introduced me to interactive systems, real-time behavior, and performance considerations. Creating visual editors and developer tools pushed me into code generation, tooling architecture, and complex user interfaces.

Professional engineering work expanded my experience across APIs, automation, cloud infrastructure, security, and production systems.

Over time, these areas began to complement one another, giving me the flexibility to work across different platforms and make technical decisions based on the needs of each product rather than a preferred technology alone.

The technologies may change, but my approach remains the same: understand the problem, choose the tools that fit, design the solution, and turn an idea into working software.

Code
Full-Stack & Product Engineering

Full-Stack & Product Engineering

Building software products across frontend, backend, mobile, and desktop platforms.

React
React
JavaScript
JavaScript
TypeScript
TypeScript
+24
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Core Technologies:
React
React
JavaScript
JavaScript
TypeScript
TypeScript
Node.js
Node.js
Astro
Astro
Tailwind CSS
Tailwind CSS
REST APIs
REST APIs
SQL
SQL
Flutter
Flutter
Dart
Dart
Electron
Electron
PHP
PHP
WordPress
WordPress
WooCommerce
WooCommerce
Python
Python
Go
Go
Rust
Rust
Java Swing
Java Swing
C#
C#
ASP.NET
ASP.NET
Windows Forms
Windows Forms
Visual Basic
Visual Basic
SQL Server
SQL Server
PostgreSQL
PostgreSQL
MySQL
MySQL
MongoDB
MongoDB
SQLite
SQLite
Most Used:

React, JavaScript, TypeScript, Astro, Node.js, REST APIs, Tailwind CSS, SQL.

Focus:

Product development, application architecture, business workflows, user experience, and end-to-end delivery.

Additional Experience:

Flutter, Dart, Electron, PHP, WordPress, WooCommerce, Python, Go, Rust, Java Swing, ASP.NET, Windows Forms, Visual Basic, C#, SQL Server, PostgreSQL, MySQL, MongoDB, SQLite.

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Cloud
Cloud & Developer Tooling

Cloud & Developer Tooling

Building cloud-backed applications, automation workflows, and tools that improve development processes.

Cloudflare Pages
Cloudflare Pages
Cloudflare Workers
Cloudflare Workers
Cloudflare D1
Cloudflare D1
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Core Technologies:
Cloudflare Pages
Cloudflare Pages
Cloudflare Workers
Cloudflare Workers
Cloudflare D1
Cloudflare D1
Cloudflare R2
Cloudflare R2
Cloudflare KV
Cloudflare KV
Amazon Web Services
Amazon Web Services
Microsoft Azure
Microsoft Azure
Google Cloud Platform
Google Cloud Platform
GitHub Actions
GitHub Actions
Git
Git
REST APIs
REST APIs
DNS
DNS
Docker
Docker
GitLab CI/CD
GitLab CI/CD
Go
Go
Linux
Linux
Firebase
Firebase
VPS Hosting
VPS Hosting
Most Used:

Cloudflare, Git, GitHub, CI/CD, REST APIs, DNS, hosting, deployment workflows.

Focus:

Serverless applications, APIs, deployment, testing automation, code generation, and developer workflows.

Additional Experience:

Docker, GitLab CI/CD, Go, Linux, Azure Blob Storage, Firebase, GCP and AWS fundamentals, VPS hosting.

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Game Controller
Game & Interactive Development

Game & Interactive Development

Creating gameplay systems, interactive tools, mobile games, and immersive experiences.

Unity
Unity
C#
C#
Unreal Engine
Unreal Engine
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Core Technologies:
Unity
Unity
C#
C#
Unreal Engine
Unreal Engine
C++
C++
Ruby
Ruby
PhaserJS
PhaserJS
Godot Engine
Godot Engine
GameMaker
GameMaker
MonoGame / XNA
MonoGame / XNA
SDL2
SDL2
SFML
SFML
WebXR
WebXR
Three.js
Three.js
Babylon.js
Babylon.js
Most Used:

Unity, C#, Unreal Engine 5, C++, UEFN, Verse.

Focus:

Gameplay systems, 2D/3D interactions, interactive applications, game prototyping, editor tooling, mobile optimization, and XR simulations.

Additional Experience:

Ruby, RPG Maker, Cocos2d, Godot, GameMaker, MonoGame/XNA, SDL2, SFML, WebXR, Three.js, Babylon.js.

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Featured Projects

Nomads Healthcare

Nomads Healthcare

Web & Cloud

Production website for a healthcare services business.

Built and deployed a responsive healthcare business website using Astro, TypeScript, Tailwind CSS, and Cloudflare Pages.

Tech Stack:
Astro logo
Astro
Astro
TypeScript logo
TypeScript
TypeScript
Tailwind CSS logo
Tailwind CSS
Tailwind CSS
Cloudflare Pages logo
Cloudflare Pages
Cloudflare Pages
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Project Overview

A production website developed for a healthcare staffing business, focused on presenting its services, responsive user experience, search visibility, and reliable deployment.

My Role

Handled website development, responsive UI implementation, SEO, DNS/SSL configuration, cloud deployment, and technical delivery through project-based client work.

Key Decisions

Selected Astro and Tailwind CSS for a lightweight, maintainable website, with Cloudflare Pages and Git-based deployment workflows to simplify hosting and updates.

Impact

Launched a production healthcare staffing website with responsive design, SEO implementation, DNS/SSL configuration, and Git-based deployment workflows.

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Dominoki

Dominoki

Ready for Launch
Mobile Application

A cross-platform mobile application for domino scorekeeping.

Developed a Flutter application for managing domino matches, tracking scores, organizing teams, and reviewing match history.

Tech Stack:
Flutter logo
Flutter
Flutter
Dart logo
Dart
Dart
SQLite logo
SQLite
SQLite
iOS logo
iOS
iOS
Android logo
Android
Android
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Project Overview

Dominoki is a mobile scorekeeping application designed to simplify how domino players manage matches, calculate scores, track results, and share their gaming experiences.

My Role

As the technology partner, I lead the software and technical direction of Dominoki. I designed and developed its Flutter mobile application, including the user experience, scoring systems, local data architecture, testing, and preparation for both app stores.

Key Decisions

Selected Flutter to support iOS and Android from a shared codebase, with SQLite for local data persistence, including players, teams, scores, and match history.

Impact

Completed the application and passed App Store and Google Play review. The product is ready for release, with its public launch still pending.

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Aseprite Slice Exporter

Aseprite Slice Exporter

Developer Tools / Open Source

An open-source Aseprite extension for exporting named image slices.

Developed a Lua extension that batch-exports named Aseprite slices as individual PNG files while preserving their original bounds.

Tech Stack:
Lua logo
Lua
Lua
Aseprite logo
Aseprite
Aseprite
GitHub Actions logo
GitHub Actions
GitHub Actions
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Project Overview

A developer and artist utility that simplifies repetitive asset-export workflows by automatically exporting individual image slices from Aseprite projects.

My Role

Designed and developed the extension, implemented its slice-export functionality, and configured automated release packaging using GitHub Actions.

Key Decisions

Built the extension using Aseprite's scripting capabilities and Lua to work directly with slice data and preserve export boundaries. Used GitHub Actions to automate packaging and release workflows.

Impact

Published a reusable open-source utility that automates slice-export workflows, with versioned releases packaged through GitHub Actions.

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Some Survival

Some Survival

Game Development

A published 2D survival shooter for iOS and Android.

Built and released a mobile survival game using Unity and C#, including gameplay mechanics, enemy behavior, touch controls, testing, and mobile publishing.

Tech Stack:
Unity logo
Unity
Unity
C# logo
C#
C#
iOS logo
iOS
iOS
Android logo
Android
Android
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Project Overview

Some Survival is a 2D top-down survival shooter where players face waves of enemies and attempt to survive as long as possible.

My Role

Designed and developed gameplay systems, enemy behaviors, mobile touch controls, and game interactions. Handled mobile optimization, testing, platform preparation, and release workflows.

Key Decisions

Used Unity and C# for cross-platform game development, adapting gameplay controls and interactions for mobile devices while preparing builds for both iOS and Android.

Impact

Successfully developed and published a playable mobile game on the Apple App Store and Google Play.

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VR Crane Training Simulator

VR Crane Training Simulator

VR / Interactive Simulation

An interactive VR crane operator training prototype.

Contributed to a Unity/C# VR training simulation developed during XR Terra's developer program in collaboration with Packet39.

Tech Stack:
Unity logo
Unity
Unity
C# logo
C#
C#
VR logo
VR
VR
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Project Overview

A team-developed virtual reality prototype designed to explore immersive crane operation training through interactive simulation scenarios.

My Role

Contributed to the Unity/C# VR training prototype as part of the XR Terra team, working on interactive simulation functionality for crane training scenarios.

Key Decisions

Developed the prototype within a Unity/C# VR workflow to support interactive crane simulation and hands-on virtual training experiences.

Impact

Contributed to a working VR crane training prototype completed as part of an industry-focused team development program.

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Witchpires

Witchpires

Playable Event Demo
PC Game / Team Project

A collaborative Unity game for PC developed with Alpha Eve.

Contributed to Witchpires using Unity and helped prepare playable PC demonstrations presented at public events.

Tech Stack:
Unity logo
Unity
Unity
C# logo
C#
C#
PC logo
PC
PC
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Project Overview

Witchpires is a PC game developed collaboratively with Alpha Eve, combining gameplay systems, visual assets, and interactive mechanics into a playable experience demonstrated at public events.

My Role

Collaborated with the Alpha Eve team on Unity gameplay implementation, asset integration, testing, and preparation of playable PC builds for live demonstrations.

Key Decisions

Focused on preparing playable game builds for hands-on event demonstrations, allowing attendees to experience the game directly rather than only through a presentation.

Impact

Helped deliver playable PC demonstrations of Witchpires that were experienced directly by attendees at public events.

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More Projects (4)
Fulltrix

Fulltrix

Game Brand / Web

The web home of a collaborative game development brand.

Built and maintain an Astro-based website showcasing Fulltrix, its games, and upcoming releases.

Tech Stack:
Astro logo
Astro
Astro
TypeScript logo
TypeScript
TypeScript
Tailwind CSS logo
Tailwind CSS
Tailwind CSS
Cloudflare Pages logo
Cloudflare Pages
Cloudflare Pages
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Project Overview

Fulltrix is a game development brand involving collaborative projects across Unity, Unreal Engine, and Fortnite/UEFN. Its website serves as a central destination for presenting games, releases, and future projects.

My Role

I lead the technical direction of Fulltrix's software and game development initiatives alongside a creative partner. I also developed and maintain the brand's website, including its presentation, game pages, and ongoing technical updates.

Key Decisions

Selected Astro for the website to provide a lightweight, maintainable platform that can evolve alongside the game catalog, support dedicated project pages, and present releases through a consistent brand experience.

Impact

Established a dedicated web presence for Fulltrix, supporting the presentation of its games, brand identity, and future releases.

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RedOtaku

RedOtaku

Active Collaboration
Social Platform / Technical Strategy

A social network connecting anime and otaku communities across Latin America.

Contributing to the technical direction of an existing social platform, including mobile development strategy, architecture planning, security, scalability, and monetization.

Tech Stack:
Flutter logo
Flutter
Flutter
Dart logo
Dart
Dart
NestJS logo
NestJS
NestJS
TypeScript logo
TypeScript
TypeScript
PostgreSQL logo
PostgreSQL
PostgreSQL
Android logo
Android
Android
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Project Overview

RedOtaku is a social network focused on anime, manga, and otaku culture, connecting enthusiasts primarily across Latin America through a community-oriented digital platform.

My Role

I contribute as a technical and product advisor, working directly with the platform's creator on technology selection, mobile development direction, software architecture planning, security, scalability, and business strategy.

Key Decisions

Recommended migrating the mobile application from React Native to Flutter, a transition that has since been implemented. We are also evaluating future backend and cloud infrastructure improvements, including managed and serverless services from Cloudflare and AWS.

Impact

My recommendations helped guide the platform's completed transition from React Native to Flutter and establish priorities for future engineering improvements. Cloud and backend modernization remain in the planning stage.

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Strategium Group

Strategium Group

WordPress / Web Development

A production website for a full-service digital design studio.

Built and maintain the Strategium Group website using WordPress, Elementor, JavaScript, PHP, and CSS, including SEO, hosting, and technical optimization.

Tech Stack:
WordPress logo
WordPress
WordPress
Elementor logo
Elementor
Elementor
JavaScript logo
JavaScript
JavaScript
PHP logo
PHP
PHP
CSS logo
CSS
CSS
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Project Overview

A production website presenting Strategium Group's digital design services, portfolio, pricing, testimonials, and contact experience.

My Role

Responsible for website development, responsive implementation, custom JavaScript, PHP and CSS functionality, SEO, hosting, ongoing maintenance, and technical optimization.

Key Decisions

Selected WordPress and Elementor to support flexible content management and visual editing, extending the platform with custom code when additional functionality or design customization was needed.

Impact

Launched and continue to maintain a production website combining WordPress content management, custom development, SEO, and hosting workflows.

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Multi-Tenant Business Platform Prototype Product prototype · Illustrative data

Multi-Tenant Business Platform Prototype

Paused Prototype
SaaS / Cloud

A serverless multi-tenant business application prototype.

Designed and prototyped a multi-tenant business platform using Astro, TypeScript, and Cloudflare serverless services.

Tech Stack:
Astro logo
Astro
Astro
TypeScript logo
TypeScript
TypeScript
Cloudflare Workers logo
Cloudflare Workers
Cloudflare Workers
D1 logo
D1
D1
R2 logo
R2
R2
KV logo
KV
KV
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Project Overview

An early-stage SaaS prototype exploring modular business workflows, tenant-aware application architecture, content management, and asset-processing systems.

My Role

Worked on product planning, application architecture, technology selection, frontend and backend workflows, data management, and Cloudflare infrastructure prototyping.

Key Decisions

Explored Cloudflare's managed serverless services, including Workers, D1, R2, and KV, to simplify infrastructure management and support modular application and data workflows.

Impact

Developed an early-stage prototype and architectural foundation for modular, multi-tenant business workflows. The project is currently paused.

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Satellite in space

Let's Work Together

I'm open to software engineering opportunities and collaborations involving full-stack products, developer tools, cloud systems, and game development.

Have a project or opportunity in mind? I'd love to hear about it.

New York City, USA
Open to opportunities and collaborations