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Hi, I'm Osvaldo!

Senior Frontend Developer

UI/UX Designer

Software Engineer

Senior Software Engineer specializing in Frontend and Mobile development with over 10 years of experience building scalable, high-performance applications. My core expertise lies in Angular, Flutter (Dart), and modern JavaScript/TypeScript ecosystems. I am passionate about optimizing development workflows and accelerating delivery by integrating AI-driven tools like GitHub Copilot and Claude into my daily coding practices. Alongside my hands-on development work at companies like FenixDevel and HestinGames, I bring a strong collaborative mindset and a background in mentoring future developers.

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About Me

My story

With over a decade of experience in software engineering, my career has been driven by a passion for building seamless, high-performance digital experiences. While my technical foundation spans the full software lifecycle, my true expertise lies in Frontend and Mobile development, where I focus on bridging complex logic with intuitive UI/UX design.

My technical journey has continuously evolved to stay at the cutting edge of the industry. Today, I specialize in architecting scalable web platforms with Angular and delivering high-quality, cross-platform mobile applications using Flutter and Dart. To maximize efficiency and code quality, I actively integrate modern AI-driven tools—such as GitHub Copilot and Claude—into my daily workflow, allowing me to accelerate development cycles and optimize complex architectures.

But my career isn't just about writing code; it’s about leadership, collaboration, and knowledge sharing. As a former programming instructor at La Salle, I honed my ability to communicate complex technical concepts and mentor emerging talent. This collaborative mindset has been a cornerstone of my career, particularly in my roles as a founding member of FenixDevel and a key contributor at HestinGames, where I helped drive software and interactive development forward.

I am a builder and a lifelong learner, always eager to tackle the next technical challenge. Whether it's developing a new mobile product from scratch or refining an existing system, I am excited to bring my technical expertise and innovative mindset to a forward-thinking team.

  • Phone: +1 305 753 0497
  • E-mail: osvaldo.1988@gmail.com

Core Expertise

MY SPECIALIZATIONS
Frontend Architecture

Architecting and developing robust, scalable web applications. I specialize in Angular, TypeScript, and modular CSS, focusing on clean code, responsive design, and building reusable UI components for complex dashboards.

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Cross-Platform Mobile

Building high-performance, native-like mobile experiences using Flutter and Dart. I focus on delivering seamless, responsive, and accessible user journeys from a single codebase across multiple platforms.

Interactive Web & Game UI

Creating highly interactive, performance-optimized user interfaces for web-based games and multimedia applications. I leverage advanced HTML, CSS, and JavaScript to build responsive in-browser game menus, overlays, and engaging user experiences.

Systems Integration & Automation

Bridging frontend components with complex backend services via REST APIs. I develop web modules and internal dashboards to automate workflows, streamline operations, and improve overall business efficiency.

Experience

Working with

Education

ACADEMIC BACKGROUND

Language Skills

Communications
  • Spanish

    Native proficiency in spoken and written Spanish." (Puedes hacerlo así de corto, o si prefieres omitir la descripción por completo y solo dejar el idioma y el nivel, es aún más limpio).

    100%
  • English

    Professional Working Proficiency in English with a Level 5 certification from Miami Dade College, skilled in professional communication within my field.

    70% T

Coding Skills

CORE TECHNOLOGIES

Angular

TypeScript

file_type_flutter

Flutter

Dart

JavaScript

Jquery

HTML

CSS, SASS

REST APIs

Git

Python

Java

Portfolio

Latest works
Mobile Application
MagnoBorker
Mobile Application
Imp’s Adventure Simulator
Web Application
AZPOS

Contact

Let's talk

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    Osvaldo Martinez
    Software Developer
    • Age: 35
    • Residence: USA
    • Freelance: Available
    • Address: Miami, Florida
    • Phone: +1 305 753 0497
    • E-mail: osvaldo.1988@gmail.com
    Osvaldo Martinez