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Leo Santillan

@leocsdev

Software engineer building and supporting Ruby on Rails applications, with experience in Hotwire, REST APIs, debugging, and technical support.

Philippines

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What I'm looking for

Seeking remote or hybrid Ruby on Rails, full-stack web development, technical support, or SaaS support engineering roles where I can apply my development, troubleshooting, and customer-support experience.

Software engineer with over four years of experience developing and maintaining Ruby on Rails web applications. I’ve built full-stack features with Rails 7 and Hotwire, customized authentication workflows, integrated REST APIs, adapted dashboards, and resolved production issues through debugging and refactoring. I also bring several years of technical-support experience, giving me a strong customer-focused approach to troubleshooting and communication. I’m interested in software engineering roles involving Ruby on Rails, web application development, maintenance, and continuous improvement.

Experience

Work history, roles, and key accomplishments

Software Engineer

Narra Labs

Aug 2023 - Dec 2025 (2 years 4 months)

Developed and maintained production Ruby on Rails 7 web applications for insurance agencies and internal teams. Built full-stack features and modern UI interactions with Hotwire, customized Devise registration and login workflows, delivered features from planning through production support, and resolved user-reported issues through debugging, refactoring, and maintainability improvements.

Ruby Ruby on Rails Hotwire (Turbo + Stimulus)JavaScript HTML5 CSS Tailwind Bootstrap Devise Git GitHub Docker Slack Jira

Jr. Ruby on Rails Developer

JVD Global Consultancy

Aug 2021 - Apr 2023 (1 year 8 months)

Integrated online casino games into the company’s main web application through REST APIs by adapting an existing implementation. Maintained Ruby on Rails application code, fixed bottlenecks, debugged issues, and coordinated with game providers when integration problems required further investigation.

Ruby Ruby on Rails REST APIs Postman Jira Slack

Technical Support Representative

Shore Solutions

Jan 2019 - Apr 2020 (1 year 3 months)

Provided phone and email technical support for Polk Sound Bar and Denon A/V Receiver products. Diagnosed customer concerns, delivered real-time resolutions, guided customers through troubleshooting steps, and escalated cases requiring additional assistance to the next support level.

Technical Support Troubleshooting Customer Service Communication Skills Problem Solving

Technical Support Specialist

TP-Link Technical Support

Jul 2018 - Sep 2018 (2 months)

Provided phone-based technical support for TP-Link cable modems, routers, and range extenders. Diagnosed connectivity and product concerns, guided customers through troubleshooting steps, delivered real-time assistance, and escalated issues requiring further investigation.

Technical Support Troubleshooting Networking Customer Service Communication Skills

Remote Service Technician

Shore Solutions

Oct 2016 - Mar 2018 (1 year 5 months)

Delivered remote technical support to optimize customers’ PCs using campaign-specific tools. Diagnosed computer issues, performed virus removal and system optimization, and installed Microsoft Office, antivirus software, and other required applications.

Technical Support Troubleshooting Windows Computer Repair Customer Service

Technical Support Representative

Sykes Inc.

Sep 2014 - Dec 2015 (1 year 3 months)

Provided phone-based customer service and technical support for Sony Vaio products. Diagnosed customer issues, guided users through troubleshooting steps, provided appropriate resolutions, and escalated concerns requiring further investigation.

Technical Support Troubleshooting Customer Service Communication Skills Problem Solving

Education

Degrees, certifications, and relevant coursework

Avion School

Full Stack Web Development Bootcamp, Web Development

2021 - 2021

Completed a six-month Full Stack Web Development Bootcamp covering HTML, CSS, JavaScript, React, Ruby on Rails, databases, MVC, Active Record, REST APIs, deployment, and test-driven development. Graduated in 2021.

Asian Institute of Computer Studies

Associate Degree in Computer Science, Computer Science

2011 - 2014

Completed a two-year Associate Degree in Computer Science, building foundational knowledge in programming, software development, databases, computer systems, and information technology. Graduated in March 2014.