James Vasquez
@jamesvasquez
Seasoned Ruby on Rails engineer with over 10 years of experience.
What I'm looking for
I am a seasoned Ruby on Rails engineer with over 10 years of experience in building high-performance web applications and scalable APIs. My career has been marked by a proven track record of leading telecom SaaS platforms and developer infrastructure tools at top U.S. companies such as DMI, GitHub, and Basecamp. I excel in designing robust backends with Rails, optimizing performance with Sidekiq, Redis, and caching, and enhancing user experience with modern JavaScript frameworks.
At DMI, I orchestrated the overhaul of telecom billing systems, elevating client processes for major companies like Verizon and AT&T. My innovations in real-time data visualization and cost analytics have significantly reduced telecom waste and improved operational efficiency. I have a knack for shipping clean, maintainable code in fast-paced environments and driving technical improvements that deliver measurable business value.
My experience at GitHub involved developing and maintaining the GitHub Pages infrastructure, enabling millions of users to host static websites seamlessly. I have also engineered scalable billing platforms and enhanced security for millions of accounts. I am passionate about collaborating with cross-functional teams to ensure robust and secure applications, prioritizing continuous integration and delivery.
Experience
Work history, roles, and key accomplishments
Senior Software Engineer
DMI
Jun 2020 - Present (5 years 1 month)
Orchestrated the overhaul of telecom billing systems with a Rails backend API, elevating client processes for Verizon and AT&T by processing over 10,000 bills monthly with 95% accuracy. Designed a sophisticated document upload system with ActiveStorage, S3, and a Sidekiq job queue, ensuring efficient background file processing and intelligent error management. Developed a multi-tenant web applicat
Senior Software Engineer
GitHub
Jul 2016 - Present (9 years)
Developed and maintained the GitHub Pages infrastructure using Ruby on Rails, enabling over 2 million users to host static websites with enhanced custom domains and themes, integrating seamlessly with Jekyll and JavaScript. Engineered a scalable billing and subscription platform, managing over 1 million transactions monthly by building robust UI and backend flows in Ruby on Rails and integrating w
Software Engineer
Basecamp
Jun 2014 - Present (11 years 1 month)
Assisted in the development and enhancement of key features within Basecamp's project management platform, including task lists and to-do reminders, using Ruby on Rails to effectively support daily operations for thousands of users. Supported the integration of ActionCable to enable real-time messaging, and assisted in implementing Sidekiq for efficient background job processing, contributing to i
Education
Degrees, certifications, and relevant coursework
University of New Haven
Bachelor's degree, Computer Science
Completed a Bachelor's degree in Computer Science. The program provided a strong foundation in software development and computer systems.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
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