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Highly versatile Senior Web Applications Engineer with more than 15 years of experience architecting, developing, and supporting scalable, secure web applications in PHP, currently focused on modern MVC engineering in Laravel. Built and maintained a B2B2C multi-tenant SaaS e-commerce platform from the ground up, in continuous production for over 10 years, processing more than 100,000 customer transactions across a dozen distinct websites. Proven career track record developing and maintaining over 250 custom database-driven web applications for nonprofits, healthcare, educational organizations, and mission-driven enterprises. Deep expertise across modern PHP, JavaScript, MySQL, MongoDB, REST APIs, payment integrations, and web application architecture.…Highly versatile Senior Web Applications Engineer with more than 15 years of experience architecting, developing, and supporting scalable, secure web applications in PHP, currently focused on modern MVC engineering in Laravel. Built and maintained a B2B2C multi-tenant SaaS e-commerce platform from the ground up, in continuous production for over 10 years, processing more than 100,000 customer transactions across a dozen distinct websites. Proven career track record developing and maintaining over 250 custom database-driven web applications for nonprofits, healthcare, educational organizations, and mission-driven enterprises. Deep expertise across modern PHP, JavaScript, MySQL, MongoDB, REST APIs, payment integrations, and web application architecture.

SCOTT GREENHAGEN

Web Developer, Programmer, Back-End Developer, +4

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Highly versatile Senior Web Applications Engineer with more than 15 years of experience architecting, developing, and supporting scalable, secure web applications in PHP, currently focused on modern MVC engineering in Laravel. Built and maintained a B2B2C multi-tenant SaaS e-commerce platform from the ground up, in continuous production for over 10 years, processing more than 100,000 customer transactions across a dozen distinct websites. Proven career track record developing and maintaining over 250 custom database-driven web applications for nonprofits, healthcare, educational organizations, and mission-driven enterprises. Deep expertise across modern PHP, JavaScript, MySQL, MongoDB, REST APIs, payment integrations, and web application architecture.…Highly versatile Senior Web Applications Engineer with more than 15 years of experience architecting, developing, and supporting scalable, secure web applications in PHP, currently focused on modern MVC engineering in Laravel. Built and maintained a B2B2C multi-tenant SaaS e-commerce platform from the ground up, in continuous production for over 10 years, processing more than 100,000 customer transactions across a dozen distinct websites. Proven career track record developing and maintaining over 250 custom database-driven web applications for nonprofits, healthcare, educational organizations, and mission-driven enterprises. Deep expertise across modern PHP, JavaScript, MySQL, MongoDB, REST APIs, payment integrations, and web application architecture.

Available to hire

Highly versatile Senior Web Applications Engineer with more than 15 years of experience architecting, developing, and supporting scalable, secure web applications in PHP, currently focused on modern MVC engineering in Laravel. Built and maintained a B2B2C multi-tenant SaaS e-commerce platform from the ground up, in continuous production for over 10 years, processing more than 100,000 customer transactions across a dozen distinct websites. Proven career track record developing and maintaining over 250 custom database-driven web applications for nonprofits, healthcare, educational organizations, and mission-driven enterprises. Deep expertise across modern PHP, JavaScript, MySQL, MongoDB, REST APIs, payment integrations, and web application architecture.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Senior Web Developer at The A Group

July 31, 2011 - February 28, 2026

• Collaborated in a hybrid and remote engineering team environment to architect and support web applications spanning more than 150 web properties built on a proprietary platform, delivering scalable, customized solutions for nonprofit, ministry, healthcare, and mission-driven organizations. • Engineered, enhanced, and documented a B2B2C multi-tenant SaaS e-commerce platform exceeding 50,000 lines of PHP, JavaScript, and HTML code across more than 140 files supporting payment processing, subscription management, real-time box fitting and shipping API integrations, inventory tracking, taxes, and reports across a dozen distinct websites, in continuous production for over 10 years, resulting in over 100,000 successful customer transactions. • Designed and maintained highly customized PHP, JavaScript, jQuery, MySQL, and MongoDB-driven applications on an MVC-based CMS focused on usability, scalability, and long-term maintainability. • Completed implementation of package manager and installer to reduce new module development time by 75% for both developers and designers on the team. • Developed multilingual translation systems integrating Google Translate APIs and continuous localization workflows for international user engagement. • Created a site replication platform enabling rapid duplication of websites, databases, CDN assets, and CMS environments through automated provisioning processes. • Modernized legacy applications from PHP 5.4 and earlier to PHP 7.4 with zero downtime. • Mentored junior developers through custom PHP training exercises and collaborative code reviews.

Web Developer at HealthTeacher

July 1, 2010 - March 1, 2011

Contributed to the development of HealthTeacher.com, an online curriculum platform utilized by more than 20,000 educators across approximately 8,000 schools nationwide. Developed interfaces and administrative tools using CodeIgniter, PHP, MySQL, and jQuery; implemented user registration workflows, surveys, data imports, and content management; assembled automated testing suite with unit and regression tests.

Web Systems Developer at Acuity Marketing Communications

April 27, 2007 - May 28, 2009

Developed and supported custom PHP and MySQL web applications across more than 100 websites on a proprietary CMS platform. Built e-commerce and digital product delivery platforms; implemented payment integrations; collaborated with cross-functional teams in Unix/Apache environments; contributed to data-driven architectures.