# Leoncio Perez > Senior Software Engineer Location: Nashua, New Hampshire, United States Profile: https://flows.cv/leoncio Experienced Full-stack Developer with a demonstrated history of working in the internet industry. Skilled in front-end web frameworks, back-end web development, dev-ops and infrastructure. Goal is to become a well-rounded CTO with the technical know-how and people skills to help peers succeed. General Assembly alumni. ## Work Experience ### Senior Software Engineer @ Uwill Jan 2023 – Present | Massachusetts, United States ### Lead Developer @ Kendo Brands, Inc. Jan 2021 – Jan 2023 Take a hands-on approach, overseeing the end-to-end development process from design to deployment. Ensure on-time delivery of initiatives by actively participating in coding, conducting thorough code reviews, and upholding coding standards and best practices. - Collaborate closely with cross functional teams, including product managers, eCommerce, design, and engineering, fostering seamless integration of Shopify features that align with project goals and stakeholder expectations. - Incorporate website performance optimization as an integral part of the development process, ensuring a frictionless user experience. Successfully implemented initiatives that reduced homepage load time from 14 seconds to an impressive 6 seconds within the first year. - Prioritize ADA compliance throughout the development process, enabling inclusivity and access for customers who utilize screen readers. - Take the lead in bi-yearly cross team collaboration sessions focused on image optimization. Facilitate discussions and implement effective image optimization strategies, resulting in improved website performance, reduced page load times, and an enhanced user experience. - Led and executed three full-scale website migrations from Salesforce to Shopify, utilizing hands-on expertise in React and Vue.js. Ensure a seamless transition, minimal downtime, and enhanced platform performance, streamlining ecommerce operations. ### Full Stack Developer @ P.volve Jan 2019 – Jan 2021 | New York, New York Lead a small shopify engineering team during our 6-month project, providing project management by creating tickets in Jira and organizing weekly sprints. This process allowed us to finish our portion of the project with two week sprints left to spare Prepared base infrastructure and process for Shopify development and deployment, providing documentation available on Confluence for Staging and Production sites Delivered a unified website experience two sprints ahead of schedule, with partnership and teamwork of our shopify engineers, streaming product team, joining Shopify and React for a semi-headless eCommerce experience Reduced page load times from 10 seconds to 5.1 seconds, leading to 3% increase in conversion rate Collaborate with Analytics, CX, Product, and Marketing to ensure that our team projects are delivered on time ### Web Developer @ Parkfield Jan 2017 – Jan 2019 | Westbury, NY Built front-end websites in Shopify according to design for clients Developed a toolkit to streamline development process in Shopify. Leading to a 30% increase in site performance Prepared a CI/CD pipeline for complex application projects on Google Cloud and AWS Assisted in the hiring process of developers by organizing interviews and preparing tests Led and organized developer meetings and weekly training exercises ### Co-Founder/Advisor/Web Developer/Infrastructure @ petcreds Jan 2016 – Jan 2017 | Greater New York City Area Co-Founded petcreds with a focus on the technical side of the business Prepared a CI/CD pipeline for full-stack applications with deployment to Google Cloud Developed backend code in Ruby-on-Rails Cooperated in building front-end pages based on designs ### Full Stack Web Developer/iOS Developer @ Freelancer Jan 2014 – Jan 2017 | Greater New York City Area Freelance Developer of websites ofsmortgage.com, nydo.co, hookah2go.nyc, cronostimepieces.com Nanodegree for iOS development from Udacity.com ### Pharmacy Technician/Manager @ Almark Pharmacy Jan 2012 – Jan 2015 | Almark Pharmacy ## Education ### Back-End Web Development in mySQL, UX/UI design General Assembly Jan 2015 – Jan 2015 ### Associate of Science (A.S.) in Computer Engineering Queensborough Community College of The City University of New York (CUNY) Jan 2014 – Jan 2015 ### Business Administration and Management in General CUNY York College Jan 2010 – Jan 2013 ## Contact & Social - LinkedIn: https://linkedin.com/in/leonperez1870 - GitHub: https://github.com/leonperez1870 --- Source: https://flows.cv/leoncio JSON Resume: https://flows.cv/leoncio/resume.json Last updated: 2026-03-23