Mark TellezMark Tellez

Ruby on Rails: 18+ Years of Full-Stack Expertise

Since 2006, I've been building applications with Ruby on Rails, from its early days through its evolution into a mature, enterprise-ready framework. My experience spans countless projects across startups and established companies, where I've leveraged Rails' convention-over-configuration philosophy to deliver robust, maintainable applications with remarkable efficiency.

Technical Proficiency and Strategic Value

My Rails expertise goes beyond basic CRUD applications to complex, high-performance systems that scale. I've built e-commerce platforms, content management systems, community portals, and API backends that power mobile applications. This breadth of experience allows me to quickly understand business requirements and translate them into effective technical solutions.

Full-Stack Development

Building end-to-end solutions with Rails backend and modern frontend technologies like React and JavaScript.

Database Expertise

Optimizing ActiveRecord with PostgreSQL and MySQL for high-performance data access and management.

API Development

Creating robust, well-documented APIs that power mobile applications and integrate with third-party services.

Rails in the Startup Ecosystem

During my six years in the San Francisco and Los Angeles startup scenes, I built numerous Rails applications that pushed the boundaries of what the framework could accomplish. From e-commerce platforms to a game community management system designed to compete with World of Warcraft's community software, these projects leveraged Rails' productivity advantages while extending its capabilities.

Modern Rails Development

I stay current with the latest Rails developments, including Hotwire, Stimulus, and other modern additions to the ecosystem. My approach combines Rails' battle-tested conventions with contemporary practices like API-first design, microservices where appropriate, and integration with modern frontend frameworks.

Performance Optimization

Identifying and resolving bottlenecks through caching strategies, database optimizations, and efficient query design.

Testing & Quality Assurance

Implementing comprehensive test suites with RSpec, Minitest, and Capybara to ensure application reliability and maintainability.

Let's Build Your Next Rails Application

Looking for a Rails developer who can deliver clean, maintainable code that solves real business problems? I'm ready to help transform your requirements into robust, scalable applications that stand the test of time.