Renzo Caiña
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Renzo Caiña

Full Stack Software Developer


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EXPERIENCE


CoreCast image

Full Stack Software Engineer

Remote

CoreCast

May 2025 - Present

  • 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 core application features across a Next.js and Node.js stack, improving platform functionality and reliability for users and internal teams.
  • Optimized the local development environment and routing performance, significantly improving page load and navigation speed to accelerate testing and developer workflow.
TypeScriptNext.jsTailwindCSSReactDrizzlePostgreSQLClerkStripeTanstackAG-GRIDJIRANeonFly.iopnpmlucide-react

Renew Biotechnologies image

Full Stack Software Developer

Provo, UT

Renew Biotechnologies

August 2023 - April 2025

  • 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.
CloudflareTypeScriptReactAWSStripeNext.jsTailwindCSSNode.jsPrismaPostgreSQLTerraformOpenVPNAmazon S3NextAuthShippoAWS FargateAWS CloudFrontAmazon RDSAmazon SESAmazon AmplifySlackAsanaRest APIsGitHubGithub ActionsDockerClerk
Wasatch Biolabs (Subsidiary of Renew Biotechnologies) image

  • 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.
Resonant (Subsidiary of Renew Biotechnologies) image

  • 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.

Fiddle, Inc image

Junior Full Stack Software Developer

Provo, UT

Fiddle, Inc

June 2022 - July 2023

  • 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.
JavaScriptTypeScriptReactTailwindCSSMonorepoNode.jsMongoDBGraphQLGitHubGithub ActionsDockerSlackPower BIKafkaElasticsearchShopifyQuickbooksCartRover

Frontline Alternative (FitSnitch App) image

Software Application Developer (Freelance)

Remote

  • 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.
TypeScriptReact NativeAWS API GatewayAWS LambdaDynamoDBAWS CognitoFirebase AuthenticationGoogle Sign-In

Fiddle, Inc image

Intern Full Stack Software Developer

Provo, UT

Fiddle, Inc

May 2021 - September 2021

  • 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.
ReactJavaScriptNode.jsMongoDBGraphQLGitHubGithub ActionsDockerSlack

Brigham Young University image

Windows Application Engineer

Provo, UT

Brigham Young University

Jan 2020 - August 2020

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

Brigham Young University image

Linux Application Engineer

Provo, UT

Brigham Young University

Jan 2020 - August 2020

  • 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.
LinuxAnsiblevim

Brigham Young University, Center for Teaching & Learning image

Web Developer

Provo, UT

  • 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.
HTMLCSSJavaScriptPHPMustacheNetBeansWAMPDockerFiddler

PROJECTS


Ronin project image

Ronin

Ronin is a web application that allows users to create and manage their own personal budget. Inspired by my wife and I having a unique way to manage our finances and wanting to get away from using a spreadsheet. It is built with Next.js, TailwindCSS, and TypeScript.

T3-StackpnpmAuth.jsNext.jsTailwindCSSTypeScriptReactPrismaPostgreSQLNeonVercelTanstack

Demo Account Credentials

Email: demo@ronin.com

Password: demo123


Portfolio project image

Portfolio

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

Next.jsTailwindCSSTypeScriptVercelReactFramer MotionOpenAI API

Family Map project image

Family Map

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.

JavaAndroid StudioGoogle Maps API

WEBFLOW PROJECTS


Union Capital Ventures project image

Union Capital Ventures

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

WebflowFigma

Agave Paint & Epoxy project image

Agave Paint & Epoxy

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

WebflowCanva

EDUCATION


BYU Logo

Provo, UT

Bachelor of Science in Computer Science

August 2015 – April 2022

Minor in Business Management (2015–2019)

AI Assistant