<ul><li>Tech Lead for Sardine Flow, a new visual workflow orchestration platform currently in development and being adopted across multiple teams</li><li>Contribute to the development and enhancement of the company’s flagship dashboard product, the organization’s primary commercial offering</li><li>Partner with product and engineering teams during demos and feature rollouts to gather feedback and drive iteration</li></ul>

Senior Software Engineer

<ul><li>Joined as the Founding Engineer, building the platform from the ground up for eligibility verification and prior authorization workflows.</li><li>Led the frontend architecture and development, delivering the core customer-facing application.</li><li>Designed and implemented backend services in Go, leveraging Temporal for durable workflow orchestration.</li><li>Owned the cloud infrastructure and deployment pipeline, provisioning AWS resources with Terraform and establishing CI/CD workflows.</li><li>Led the company&#x27;s SOC 2 certification effort and helped establish the security and compliance practices required to support HIPAA Business Associate customers.</li></ul>

Founding Engineer

<ul><li>Joined as First Engineer, built the v0 from the ground up, powering $600K ARR.</li><li>Key contributor in driving the company to a $23M Series A raise reaching a total of $30M founding</li><li>Built and deployed a Chrome extension to run AI analyses directly in the browser.</li><li>Implemented an HTTP AI server capable of handling thousands of analyses per day.</li><li>Developed a robust deployment pipeline with AWS CodeBuild and GitHub Workflows, improving release speed and stability.</li></ul>

<ul><li>Engineered the app’s end-to-end stack to support critical workflows, including appointment booking and payment handling</li><li>Served as the sole developer of a React Native app for our customers</li><li>Developed a CMS using TailiwindCSS + NextJS + Supabase, where medical staff could manage their schedule and appointments, monitor patients attendance to circles and have access to patients info</li><li>Worked closely with the CEO to define the specifications for each feature through direct collaboration</li></ul>

Software Engineer

<ul><li>Led the frontend team in building v3 of the app with React, Next.js, and TailwindCSS, delivering core features such as posting, commenting, blockchain-transaction views, and user profiles — a Discord/Reddit-style experience for web3.</li><li>Designed and developed the frontend for a workflow enabling users to purchase, personalize, and create NFTs, driving engagement and revenue.</li><li>Established and enforced a scalable branching strategy across all repositories, improving code quality and streamlining the development workflow.</li><li>Collaborated closely with backend and product teams to ensure smooth handoffs, clear requirements, and consistent delivery across the stack.</li><li>Contributed strategically to product roadmap discussions, shaping feature priorities and user experience.</li><li>Mentored and guided junior engineers, fostering best practices in code quality, testing, and performance.</li></ul>

Frontend Engineer

Ethan Escareño Rosano

Padonde was a platform where local restaurants would post their daily promotions and discounts, people would be able to see the promotions for a certain day of the week, and also have a view of the 7 days of the week to plan their visit ahead.

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Ethan R.

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