David Gucwa, Full-stack Developer in Tewksbury, MA, United States
David Gucwa

Full-stack Developer in Tewksbury, MA, United States

Member since June 25, 2020
David began programming computers at the age of five, after his father brought home a Commodore VIC-20. It quickly became a fascination, later a hobby, and eventually a career. David is now a web developer with over 15 years of work experience and a member of American Mensa. He takes pride in his code's organization, elegance, and efficiency, and in his ability to solve problems creatively. David feels comfortable coding for basically any project -- he's been doing it his entire life.
David is now available for hire

Portfolio

Experience

  • MySQL 18 years
  • PHP 18 years
  • Unix Shell Scripting 15 years
  • APIs 5 years

Location

Tewksbury, MA, United States

Availability

Part-time

Preferred Environment

SQL, PHP, Unix

The most amazing...

...product I've created is a reporting platform built from scratch to handle the needs of thousands of major clients, including McDonald's, TD Bank, USPS, and BP.

Employment

  • Senior Developer

    2006 - 2020
    SurfMerchants
    • Designed and built a customizable reporting platform for customer survey data, handling tens of millions of database records and used by major international clients, including USPS, TD Bank, Google, and BP.
    • Led a team of six LAMP developers in maintaining our product's code and adding new features.
    • Wrote deep analytic tools to help clients better understand their data.
    • Integrated our product with multiple third-party REST APIs.
    • Built internal tools to make our own teams more productive.
    • Upgraded tens of thousands of lines of code in our legacy product to be PHP 7 compliant.
    • Optimized our code and database as needed to handle user requests in minimal time.
    Technologies: jQuery, JavaScript, CSS, HTML, MySQL, PHP
  • Developer

    2005 - 2005
    ConnectU
    • Added functionality to our social networking platform.
    • Maintained and optimized our product's MySQL databases.
    • Implemented a security system for online transactions.
    Technologies: Smarty, HTML, MySQL, PHP
  • Developer

    2004 - 2004
    Genevate
    • Built a content management system for commercial websites.
    • Established and maintained several databases using MySQL.
    • Created reusable HTML templates for our content management system.
    Technologies: HTML, MySQL, PHP

Experience

  • Dragon Reporting (Development)
    https://site.sassieshop.com/reporting/dragon/

    This is a reporting platform built from scratch to meet the growing needs of our thousands of clients, providing both real-time and periodically distributed reports of client data across dozens of database tables containing tens of millions of records. I was the sole developer and spent over five years growing the product with an eye on efficiency, the user experience, and well-organized code.

Skills

  • Languages

    PHP, PHP 7, HTML, CSS, JavaScript, Java, Python, SQL
  • Storage

    MySQL, Databases
  • Frameworks

    Twig, Laravel, CodeIgniter, Symfony, Smarty
  • Libraries/APIs

    Highcharts, jQuery, React, Stripe Connect API, Stripe Connect
  • Other

    Algorithms, Unix Shell Scripting, Reporting, Optimization, Mathematics, Back-end, Front-end, Full-stack, APIs
  • Tools

    Stripe Checkout
  • Platforms

    Unix

Education

  • Bachelor of Science degree in Computer Science
    2000 - 2004
    University of Massachusetts at Amherst - Amherst, MA, United States

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