About me

I am a full-stack software engineer with 10 years of experience in web and mobile application development. I have a proven track record of managing the entire development lifecycle, from concept to deployment, across projects of all sizes. Throughout my career, I have successfully launched eCommerce platforms, Employee management systems, Multi-vendor marketplaces, Multi-tenant applications, NFT marketplaces, online Auction platforms, and SaaS solutions.

My core expertise includes Laravel, Flutter, Vue.js, Next.js, WordPress, and Shopify, which I leverage to develop scalable, high-performance solutions tailored to business needs.

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.

  • camera icon

    Could Deployment

    I will deploy or migrate your website on any hosting.

Testimonials

  • Daniel lewis

    Daniel lewis

    Working with David Marrero was an absolute game-changer for our business. He quickly understood our needs and developed a highly efficient employee management system that streamlined our operations. His technical expertise and problem-solving skills were evident in every aspect of the project. Highly recommended for anyone looking for a top-tier web and mobile developer!

  • Jessica miller

    Jessica miller

    We needed a stunning and user-friendly eCommerce platform, and David Marrero delivered beyond expectations. Not only did he ensure the website was fast, secure, and functional, but he also added a unique design touch that made our brand stand out. Our customers love the new shopping experience! Thank you for your dedication and attention to detail!

  • Emily evans

    Emily evans

    I’ve worked with many developers, but David Marrero stands out for his professionalism, speed, and deep technical knowledge. He built our live auction platform, handling complex real-time bidding features flawlessly. The project was delivered on time and exceeded our expectations. If you need a developer who truly understands how to bring ideas to life, look no further!

  • Henry william

    Henry william

    From concept to launch, David Marrero was instrumental in building our payment integration system. His ability to create secure and seamless payment solutions helped us scale our business effortlessly. He is reliable, communicates clearly, and always finds innovative solutions to challenges. We couldn’t have asked for a better developer!

Clients

Resume

Education

  1. Florida Polytechnic University - Lakeland, FL

    May 2011 - August 2015

    Bachelor of Science in Computer Science

Experience

  1. Full-Stack Developer at M&C Assemblies, Inc - Tarpon Springs, FL

    May 2022 - February 2025

    M&C Assemblies Inc. provides assembly and merchandising services for a wide range of products, serving major retailers across the U.S.

    • Contributed to the development of the Assembly Toolbox platform, consisting of a web portal and native mobile applications.
    • Developed the website using Laravel and MongoDB, enabling the management of employees, task assignment, work tracking, invoicing, and payments.
    • Built native mobile applications for Android(Java) and iOS(Swift), integrating Real-Time GPS tracking to monitor employee activity, including workshop check-ins and check-outs.
    • Implemented features for employees to receive tasks, submit work results, and track job progress through the mobile app.
    • Optimized the mobile app for real-time task notifications with Firebase, work submission, and seamless interaction between employees and management.
    • Ensured smooth integration between web and mobile platforms, delivering a user-friendly experience for both employees and management teams.
    Technologies: Android(Java), iOS(Swift), GPS, VOIP, Firebase, Rest API, SSO
  2. Mobile Developer at Ballot Builder LLC - Knoxville, TN

    September 2019 - April 2022

    Ballot Builder LLC is a platform designed to help voters discover election details, learn about candidates, and share their preferences. It aims to create a more informed voting experience, allowing users to prepare confidently for elections.

    • Developed and maintained Android and iOS applications using Flutter.
    • Integrated Firebase Notifications for real-time updates and alerts.
    • Implemented Identity verification using Stripe SDK to enhance security.
    • Added biometric authentication (Face and Fingerprint) using AWS Rekognition for enhanced user security.
    • Integrated CI/CD pipeline using GitHub Actions, Fastlane and Xcode Cloud for automated builds and deployments.
    • Implemented Unit testing, Integration testing, and End-to-end testing using Flutter Test.
    • Integrated In-App Purchase functionality with Google Pay and Apple Pay for seamless transactions.
    Technologies: Flutter, Firebase, Stripe, Apple Pay, Google Pay, CI/CD, Testing, Fastlane, Github Actions
  3. Full Stack Developer at Bizinabox LLC - Las Vegas, NV

    September 2015 - November 2019

    Bizinabox is a no-code platform for building websites, logos, and automating business processes. It helps entrepreneurs create and manage their online presence easily.

    • Spearheaded the development of a SaaS-based Website Builder platform using Laravel and Vue.js, with MySQL as the database, enabling users to easily create and customize professional websites.
    • Architected and implemented Serverless infrastructure with Vapor, optimizing for scalability, high availability, and cost-efficiency.
    • Developed an advanced Inventory Management System that automates product synchronization across Shopify, eBay, Amazon, and WordPress, improving operational efficiency and data consistency.
    • Engineered a Self-hosted Email Server and dynamic DNS configurations for custom domain management, ensuring seamless email delivery and domain setup.
    • Led the creation of a Social Community platform and Logo Builder, driving user engagement and empowering customers to develop their unique brand identities.
    • Developed the Shopify App, enabling users to efficiently create gang sheets for custom products in bulk, enhancing order processing for print shops.
    Technologies: SAAS, Laravel, Vue.js, TailwindCSS, MySQL, AWS, Shopify, Vapor, WordPress, Email Server

My skills

  • PHP & Dart & JavaScript & TypeScript & Python & Java & Swift
  • Laravel & WordPress & Shopify & Magento & Drupal & Joomla & OpenCart & PrestaShop & WooCommerce
  • Flutter & React Native & Expo & Android & iOS
  • React.js & Vue.js & Express.js & Next.js & Node.js
  • MySQL, PostgreSQL, MongoDB, Redis, Memcached, Elasticsearch, Solr, Sphinx, SQLite, MariaDB, Percona,
  • AWS Services: DynamoDB, RDS, EC2, S3, CloudFront, CloudWatch, Amplify, SNS, Face Recognition
  • Socket.io & Websocket & WebRTC
  • Paypal, Stripe, WeChat Payment Gateway
  • Git & Docker & Kubernetes & Jenkins & CI/CD
  • Web3 & Blockchain & NFT & Smart Contract & Solidity
  • eCommerce & Auction & Booking & Inventory Management & Task Management

Contact

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