Edmundo Retama

Gold Media Tech (Contract)

Software Engineer | Remote (Mérida, Yucatán) | May 2024 – Present

• Implemented new SaaS features end-to-end based on founders' specifications, translating their ideas into production-ready code.
• Configured and documented the development environment to onboard future engineers smoothly.
• Added Cypress component tests to improve UI reliability and catch regressions early.
• Built infrastructure for automated integration tests, boosting confidence in cross-service workflows.
• Converted the core web app into a Progressive Web App for better cross-platform performance and offline support.
• Identified and refactored performance bottlenecks to accelerate page-load times.
• Built and maintained the marketing site from Figma mockups, ensuring responsiveness and ease of updates.
• Fielded support tickets, delivering fixes quickly and feeding insights into the backlog.

Tech stack: Remix · React · TypeScript · Prisma · PostgreSQL

Independent Contractor

Full-Stack Developer | Remote (Yucatán, México) | Feb 2024 – Jun 2024

• Architected and implemented pre-sales/post-sales workflow platform with digital signatures, scheduling, and CRM lead integration.
• Built a CSV data-migration tool on Supabase, accelerating client data onboarding by 50%.
• Delivered multiple feature enhancements for a boat-maintenance SaaS application.

Tech stack: Vue.js · Node.js · MongoDB · Supabase · React · AWS Lambda · GraphQL · Tailwind CSS

Smagus LLC

Technical Lead | Jan 2022 – Feb 2024

• Designed and maintained front-end architecture for large-scale React applications, introducing E2E pipelines and Storybook for component cataloging.
• Maintained backend API built in .NET Core, leveraging Entity Framework Core with SQL Server for data persistence.
• Integrated authentication and authorization using OpenID Connect, and extended security with a custom two-factor system.
• Mentored non-React developers, elevating team proficiency and code quality.
• Supported CI/CD automation, enabling seamless and reliable deployments.
• Delivered proofs-of-concept for new product directions and optimized a Rust-backed CMS for performance.

Tech stack: Azure · React · .NET Core · Cypress · Next.js · Rust (Actix) · Storybook

Encora Inc.

Software Engineer | Aug 2020 – Jan 2022

• Developed and maintained a dynamic form-generator app used by 100+ enterprise users.
• Built and supported RESTful API services for internal tooling.
• Conducted technical interviews and mentored interns on React and TypeScript best practices.
• Implemented feature-flag framework across front-end and back-end for controlled rollouts.

Tech stack: React · Cypress · Node.js · TypeScript

Freelance Full-Stack Developer

Self-Employed | May 2020 – Dec 2021

• Created a 3D "dress showroom" platform with interactive room navigation and remote directing.
• Built a "Financial Independence Calculator" web component for easy integration.
• Architected subscription/payment system accepting Bitcoin, with CI/CD automation.

Tech stack: React · Firebase · Vue.js · AWS Lambda

Chubb

Full-Stack Engineer | Aug 2019 – Jul 2020

• Developed a resilient lead-distribution system using .NET Core, Azure Functions, Cosmos DB, and an enterprise service bus to balance traffic across call-center providers.
• Built the admin panel, developing its API in .NET Core and integrating Azure Key Vault for secure management of application secrets and keys.
• Authored architecture diagrams and technical specs for future enhancements.

Tech stack: Azure · .NET Core · Angular · TypeScript · Azure Key Vault

Inflection Point Systems

Technical Lead | Mar 2016 – Aug 2019

• Led requirements analysis and coached a front-end team in delivering React/Angular applications.
• Maintained backend services for a healthcare project built on .NET Framework, ensuring reliability and performance.
• Migrated legacy Web Forms applications to RESTful Web API services to support a move to an Angular front end.
• Migrated Windows services to AWS Lambda microservices, reducing hosting costs by 40%.
• Designed and built a no-code E2E testing platform, enabling QA teams to create workflows without writing scripts.
• Created a Chrome extension to record user actions and translate them into reusable test cases for the platform.
• Developed a WebRTC-based screen-sharing feature focusing on DOM-element streaming.

Tech stack: Azure · React · .NET Core · .NET Framework · Angular · WebRTC · Node.js · AWS Lambda

Earlier Roles (selected)

• Likter Inc. | Front-End Developer | Jul 2012 – Jun 2014
  Tech: Sencha Touch, HTML5, jQuery, Node.js
• Televisa Interactive Media | PHP Developer | Nov 2010 – Jul 2012
  Tech: PHP, Zend Framework, jQuery, HTML5, CSS3
• Ingenia Group | PHP Developer | Feb 2009 – May 2010
  Tech: Zend Framework, jQuery, HTML5, CSS3
• PUNTO PEN | Webmaster | May 2008 – Mar 2009
  Tech: PHP, HTML, CSS, SEO

Details available upon request