# Chris Mendoza-Alecio > Software Engineer Location: Oakland, California, United States Profile: https://flows.cv/chrismendozaalecio Experienced Full-stack Developer with 5+ years building scalable web applications and payment integrations. At Formalize, I developed custom job scheduling that enabled all clients to automate risk management and outreach workflows. I streamlined integration processes by implementing DocuSign e-signature capabilities, reducing setup time from days to minutes. My focus on developer experience includes creating design systems that boost team productivity while maintaining consistency across multiple products, and optimizing database performance to improve log search times from seconds to milliseconds. During my tenure at Afterpay, I led critical infrastructure improvements that directly impacted business outcomes. I spearheaded the migration to Shopify's Theme Extensions, increasing integration success rates from 60% to 85% and driving a 10% increase in app installations. In addition to, I connected several services to onboard merchants to our Shopify Payment Extension. I successfully coordinated with cross-functional teams to migrate 95% of merchants before critical architecture deadlines, ensuring uninterrupted payment capabilities for our largest platform. My technical expertise spans modern web technologies including React, TypeScript, Node.js, GraphQL, and PostgreSQL, with additional experience in Next.js, Svelte, Python, and Kotlin. I'm passionate about building robust testing frameworks, implementing CI/CD best practices, and creating seamless user experiences through real-time integrations and accessibility-focused development. ## Work Experience ### Senior Full Stack Engineer @ Formalize Jan 2023 – Jan 2024 | Oakland, California, United States Created a design system which boosted developer productivity and kept multiple products looking consistent. Improved log search times from several seconds to milliseconds by utilizing PostgreSQL’s Text Search Operators and indexing. Added job scheduling to allow users to run custom logic at specified intervals. All clients ran jobs for risk management and outreach. Integrated DocuSign into our platform to reduce the integration time from a few days to 5 minutes. Implemented and improved our backend APIs to support Case Management: CRUD, toggling user-defined settings, and filtering by dates and status. ### Full Stack Engineer @ Afterpay Jan 2019 – Jan 2023 | San Francisco Bay Area Integrated Shopify’s Theme Extensions to support the latest Shopify themes. This moved us away from legacy themes, improved our integration success rate from 60% to 85%, and increased app installations by 10%. Implemented onboarding for our Shopify Payment Extension. Connected several services to support logging in with credentials or email. Successfully migrated 95% of merchants before Shopify’s tight deadline. Discovered and fixed an issue that prevented the mismanagement of hundreds of thousands of funds by handling duplicate accounts across two systems. Lead engineer on the payments widget editor. Recommended our parent company’s design system for future-proof app styles. Planned with stakeholders, developed testing phases for CI / CD, reviewed critical changes, and deployed and monitored. Implemented a robust testing framework for Shopify apps. Frontend testing was based on accessibility, and backend testing was mocked on the network level. React, TypeScript/JavaScript, Node.js, Redis, Docker, Python (Flask), Kotlin, AWS (S3, Lambda, SQS), Kubernetes ### Full Stack Developer @ Atos Syntel Jan 2019 – Jan 2019 | San Francisco Bay Area Involved with the entire Software Development Life Cycle of Java web applications. Working with relational databases and the Model-View-Controller architecture. Part of an Agile-driven team that utilizes DevOps software and constant communication. ### Full Stack Developer @ The Davis Graduate Sports Bar Jan 2018 – Jan 2018 | Davis, CA Developed and redesigned a local sports bar’s website in order to improve UI / UX through an organized layout, animations, and efficient display of data. ### Computer Science Tutor @ University of California, Davis Jan 2018 – Jan 2018 | Davis, CA Individual tutoring for courses such as Algorithm Design, and Object-Oriented Programming. I guided the tutoring sessions, asked questions, and provided practice problems. ### Student Assistant @ University of California, Davis Jan 2016 – Jan 2017 | Davis, CA Maintained loans and holds, provided research and general information, and organized our reserves collection as well as our interlibrary materials. ## Education ### Bachelor of Science - BS in Computer Science University of California, Davis Jan 2014 – Jan 2018 ## Contact & Social - LinkedIn: https://linkedin.com/in/chris-s-mendoza-codes --- Source: https://flows.cv/chrismendozaalecio JSON Resume: https://flows.cv/chrismendozaalecio/resume.json Last updated: 2026-03-20