RenzoCaiña

• ›Primary author of the web application for a multifamily real-estate investment platform, writing over 80% of its commits on a four-engineer team.
• ›Built the underwriting and proforma modeling workflow, including rent-roll and T-12 ingestion from Excel files with handling for sparse and irregular spreadsheets.
• ›Built market comparables and property search on Google Maps with pin and cluster views, plus a deal pipeline and report exports.
• ›Built and integrated Stripe-based subscription infrastructure supporting organization-level billing, plan tiers, and automated lifecycle management (signup, upgrade, downgrade, cancellation).
• ›Implemented secure authentication and multi-tenant organization management using Clerk, enabling role-based access and seamless onboarding across teams.

• ›Developed and launched web applications supporting multiple biotech subsidiaries, including Wasatch BioLabs and Resonant, using shared AWS infrastructure for scalability and efficiency.
• ›Collaborated with cross-functional teams across Wasatch and Resonant to define project requirements and scope, resulting in improved delivery timelines and clearer stakeholder communication.
• ›Built and enhanced features to support billing workflows, integrating with Stripe for invoicing and improving internal processes for the billing team.

└─ subsidiaries

Wasatch Biolabs (Subsidiary of Renew Biotechnologies)

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• ›Design, develope, and launch a custom Laboratory Information Management System (LIMS) using NextAuth, React, TailwindCSS, and Next.js, enabling secure user authentication and seamless lab data workflows via RESTful APIs, reducing manual processes and improving operational efficiency by 35%.
• ›Lead a team of three engineers, establishing engineering best practices that improved system scalability, reduced security vulnerabilities, and increased deployment reliability.
• ›Restructure application infrastructure to optimize performance and scalability, improving PostgreSQL query efficiency and reducing deployment time by 30% using AWS Fargate, Terraform, and OpenVPN.
• ›Implement Amazon S3 Intelligent-Tiering for data storage, reducing cloud storage costs by 40% while maintaining data availability and access performance.

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Resonant (Subsidiary of Renew Biotechnologies)

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• ›Lead the end-to-end development and launch of a HIPAA-compliant health portal using NextAuth, React, TailwindCSS, and Next.js, enabling secure user access and improving patient onboarding.
• ›Architect and deploy scalable AWS infrastructure with Terraform, achieving full HIPAA/PHI compliance; implemented OpenVPN-secured PostgreSQL access, reducing data breach risk.

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• ›Develop new features and improve current UI and backend functionality by communicating with clients.
• ›Analyze source code, locate and fix bugs throughout the app through testing and deliver a fixed solution.
• ›Facilitate and schedule dev team meetings for updates, brainstorming, and accountability.

• ›Create mobile app (FitSnitch) for fitness trainers and trainees using React Native and TypeScript for UI design.
• ›Developed a serverless architecture using AWS services such as API Gateway, Lambda, and DynamoDB.
• ›Implemented AWS Cognito for client side app authentication.
• ›Update client side authentication from AWS Cognito to Firebase Authentication and include google log in integration.

• ›Develop and maintain a new Fiddle app page and features backend using javascript on Nodejs.
• ›Map backend request for login, sign up and other page data from MongoDB using graphQL.
• ›Learn React and Typescript for front-end development.

• ›Manage multiple windows applications for the College of Life Sciences at BYU

• ›Learned the linux operating systems, softwares, and command line.
• ›Manage multiple linux applications for the College of Life Sciences at BYU
• ›In the process of solving software issues I have learned ansible and editing files using vim.

• ›Developed and maintained the web application (Learning Suite) for BYU using HTML, CSS, JavaScript, PHP, and Mustache
• ›Fix bugs to enabled educators and students to access their class grades and details.
• ›Worked on both backend and frontend development using NetBeans as the IDE, along with WAMP, Docker servers, and Fiddler for testing and debugging.

My personal portfolio built with Next.js App Router, TailwindCSS, and TypeScript.

Family Tree app for BYU CS 240. Automatically generates a family tree that is then viewable on a map with added filters of family details and connections. This project uses Java, Android Studio, and Google Maps API.

Multi-page marketing site for an investment firm, rebuilt in Webflow from a full Figma design, including layouts, imagery, navigation, and responsive behavior.

Simple marketing site for a small painting and epoxy business, with pages showcasing services, gallery images of completed work, and mobile-friendly layouts.