About me

I'm a Fullstack developer from Fresno, California, specializing in creating modern web applications and mobile apps. I enjoy turning complex problems into simple, beautiful and intuitive designs.

Hello, I am currently an undergraduate student at Clovis Community College working towards an Associates degree in Engineering Computer Software. Outside of school I like to develop technical skills in full stack development and cross platform applications using technologies like React Native, JavaScript, Firebase, and Node.js.

Technologies I Use

Frontend

TypeScript JavaScript Uniwind

Framework

React Native Expo

Backend

Node.js Convex Firebase

Tools & Others

EAS Figma

What i'm doing

  • design icon

    Web design

    The most modern and high-quality design made at a professional level.

  • Web development icon

    Web development

    High-quality development of sites at the professional level.

  • mobile app icon

    Mobile apps

    Professional development of applications for iOS and Android.

Testimonials

  • Roberto

    Roberto

    Ruben was hired to create a ordering ecosystem featuring dual interfaces for customers and kitchen staff. Customers enjoy a seamless experience with real-time order tracking and menu browsing, while the dedicated Cook Dashboard empowers staff to manage availability, toggle order acceptance, and track statuses from "Pending" to "Completed" in real-time.

Clients

Resume

Education

  1. Clovis Community College

    2021 — 2025

    This fall, I will complete my final course, Engineering Electric Circuits, to earn my Associate of Science in Software Engineering.

    This course studies elements of discrete mathematics which have applications to computer science. Topics include sets, propositional and predicate logic, relations and functions, proof techniques, graph, trees, and discrete probability.

    • Transfer Credits: (A, CSU, UC, CAL-GETC)
    • C-ID: COMP 152
    • Key Topics: Sets, propositional and predicate logic, relations and functions, proof techniques, graphs, trees, discrete probability

    This course introduces object-oriented design concepts, recursion, manual and automatic memory management; implementation of data structures including linked lists, stacks, queues, binary search trees, heaps, and hash tables; insertion, searching, and deletion. C++ language is used.

    • Key Topics: Object-oriented design, recursion, memory management, data structures (linked lists, stacks, queues, binary search trees, heaps, hash tables), C++ programming

    This course introduces problem solving, algorithm development, procedural and data abstraction using C++ language; program design, coding, debugging, testing, and documentation.

    • Transfer Credits: (A, CSU, UC)
    • C-ID: COMP 112, COMP 122
    • Key Topics: Problem solving, algorithm development, procedural and data abstraction, C++ programming, program design, debugging, testing, documentation

    Solutions to first order ordinary differential equations, including separable, linear, homogeneous of degree zero, Bernoulli and exact with applications and numerical methods. Solutions to higher order differential equations using undetermined coefficients, variation of parameters, and power series, with applications. Solutions to linear and non-linear systems of differential equations, including numerical solutions. Matrix algebra, solutions of linear systems of equations, and determinants. Vector spaces, linear independence, basis and dimension, subspace and inner product space, including the Gram-Schmidt procedure. Linear transformations, kernel and range, eigenvalues, eigenvectors, diagonalization and symmetric matrices.

    • Transfer Credits: (A, CSU, UC, CAL-GETC)
    • C-ID: MATH 240, MATH 260, MATH 910S
    • Key Topics: Differential equations (first order, higher order, systems), Matrix algebra, Vector spaces, Linear transformations, Eigenvalues and eigenvectors, Diagonalization

    Course description to be added.

    • Key Topics: Advanced calculus topics

    Course description to be added.

    • Key Topics: Calculus fundamentals

    Course description to be added.

    • Key Topics: Introduction to calculus

    Classical mechanics, properties of matter, gravitation, fluid mechanics, oscillatory motion and mechanical waves. This course is calculus-based.

    • Transfer Credits: (A, CSU, UC, CAL-GETC)
    • C-ID: PHYS 205, PHYS 200S (PHYS 4A + PHYS 4B + PHYS 4C)
    • Key Topics: Classical mechanics, properties of matter, gravitation, fluid mechanics, oscillatory motion, mechanical waves, calculus-based physics

    The topics covered in this course include: Mechanical waves, Thermodynamics, electricity, magnetism.

    • Transfer Credits: (A, CSU, UC, CAL-GETC)
    • C-ID: PHYS 210, PHYS 200S (PHYS 4A + PHYS 4B + PHYS 4C)
    • Key Topics: Mechanical waves, thermodynamics, electricity, magnetism
  2. Center for Advanced Research and Technology

    2019 — 2021

    During my time at the Center for Advanced Research and Technology, I developed a strong foundation in both cybersecurity and game design. In my first year, I focused on cybersecurity, completing projects to secure smart home systems and earning my CompTIA Security+ certification. The following year, I transitioned to 3D video game design, where I collaborated in teams of four, taking on roles such as artist, programmer, UI designer, and animator. My team successfully designed and developed a single-player racing game set in a compact representation of San Francisco and a 2D platformer game inspired by classic titles like Mario, demonstrating effective task distribution and cohesive game development.

My skills

  • Web design
    70%
  • Graphic design
    70%
  • C++
    90%
  • JavaScript
    40%
  • React Native
    75%
  • Firebase
    70%
  • Node.js
    65%

Days I Code

  • Your GitHub chart

Portfolio

  • Pro Cleaning App

    Pro Cleaning

    Application

    A comprehensive mobile app for professional cleaning services featuring job scheduling, customer management, service tracking, and payment processing. Built to streamline operations for cleaning businesses and enhance customer experience.

    React Native Expo Firebase

    Outcome: Successfully deployed and helping cleaning professionals manage their business operations efficiently with improved scheduling and customer communication.

  • Central Valley Dealer App

    Central Valley Dealer

    Application

    A professional mobile app for car dealerships featuring inventory management, vehicle listings, customer inquiries, test drive scheduling, and sales tracking. Designed to modernize dealership operations and improve customer engagement.

    React Native Expo Firebase

    Outcome: Successfully deployed and helping dealerships manage their inventory, track sales, and provide better customer service through streamlined digital processes.

  • Rizo Pizzeria

    Rizo Pizzeria

    Application

    A production-ready mobile app for Rizo Pizzeria featuring online ordering, real-time order tracking, menu browsing, and seamless payment integration. Built to enhance customer experience and streamline restaurant operations.

    React Native Expo Firebase

    Outcome: Successfully deployed and in active use—increased online orders by 40% and improved customer satisfaction with streamlined ordering and real-time tracking.

  • Shelton Springs HOA App

    Shelton Springs Home Owners Association App

    Application

    A production-ready mobile app for HOA community management with real-time notifications, document sharing, and resident communication.

    React Native Expo Firebase

    Outcome: Successfully deployed and in active use by Shelton Springs HOA—streamlined operations and improved resident engagement.

  • HOA App Template

    HOA App Template

    Web development

    A customizable HOA community management app template. Built with React Native, Expo, and Firebase for community management, notifications, and document sharing.

    React Native Expo Firebase Node.js

    Outcome: Sold to first client for $500—streamlined HOA operations and improved resident communication.

  • Gadget Garage App

    Gadget Garage

    Application

    A comprehensive mobile app for managing and tracking your tech gadgets, warranties, and maintenance schedules. Built with modern mobile technologies.

    React Native Firebase Node.js

    Outcome: Live production app helping users organize their tech inventory efficiently.

  • Rosa's Beauty Salon

    Rosa's Beauty Salon

    Application

    A modern booking and management system for beauty salons. Features appointment scheduling, client management, and service tracking.

    Web App JavaScript
  • Zoom Realty

    Zoom Realty

    Web development

    A modern real estate website with property listings, search functionality, and agent profiles. Responsive design optimized for all devices.

    HTML CSS JavaScript
  • Real Estate

    Estate

    Web development

    A clean and modern real estate platform showcasing properties with advanced filtering and search capabilities.

    HTML CSS JavaScript
  • Homeverse

    Homeverse

    Web development

    An elegant real estate website featuring property showcases, virtual tours, and seamless user experience.

    HTML CSS JavaScript
  • Firecon Merch Store

    Firecon Merch

    Web design

    A modern e-commerce storefront for merchandise with shopping cart functionality and product showcases.

    HTML CSS JavaScript

Blog

Blog post image

Design

Design conferences in 2022

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Services
& Pricing

Transparent pricing for all development services. All projects include consultation, planning, and professional delivery. Get a custom quote tailored to your specific needs.

Services & Pricing

  • Web & Mobile App Development

    Custom projects built to your specifications. Includes Firebase integration, responsive design, real-time notifications, and deployment setup.

    $1,000 - $5,000 Fixed Price
    Get a Quote
  • Code Licensing

    Reusable app templates with full source code. Includes 12 months support, customization assistance, documentation, and commercial use license. Examples: Shelton Springs HOA App.

    $1,000+ One-time License

    12 months support included, then $200/year maintenance

    Get a Quote
  • Hourly Consulting

    Expert guidance for Expo/React Native development, API integrations (e.g., football data), code reviews, bug fixes, architecture consultation, and performance optimization.

    $75/hour Hourly Rate
    Get a Quote
  • PC Services (Gadget Garage)

    Hardware builds, repairs, and upgrades. Includes Gadget Garage app setup, system optimization, warranty tracking, and maintenance scheduling.

    $100 - $300 Per Service
    Get a Quote

Note: All prices are starting points. Final quotes depend on project scope, complexity, and specific requirements. Contact me for a detailed estimate tailored to your needs.

Hire Me

Looking for a skilled developer to bring your project to life? I specialize in creating modern, responsive web applications and mobile apps that deliver exceptional user experiences.

Whether you need a complete website, a mobile app, or custom development solutions, I'm here to help turn your vision into reality.

What I Offer

  • Web development icon

    Web Development

    Custom websites and web applications built with modern technologies. Responsive design, fast performance, and SEO optimization.

  • mobile app icon

    Mobile App Development

    Cross-platform mobile applications using React Native and Expo. iOS and Android apps with native performance.

  • design icon

    Full-Stack Solutions

    Complete solutions from frontend to backend. Database design, API development, and cloud integration with Firebase.

My Expertise

  • React Native
    75%
  • JavaScript
    40%
  • Firebase
    70%
  • Node.js
    65%
  • Web Design
    70%
  • C++
    90%

Let's Work Together

Fill out the form below to discuss your project. I'll get back to you within 24 hours to discuss your requirements and provide a quote.

Contact

Contact Form