Full stack developer with 8+ years building production-ready web and mobile applications across React, Next.js, Node.js, and the .NET/C# ecosystem. Proven ownership of frontend architecture (component libraries, design systems, state management) and complete backend delivery (REST/GraphQL APIs, microservices, real-time systems) on AWS and Azure. Comfortable delivering end-to-end from database schema to API and UI, while mentoring engineers and improving engineering standards through testing, linting, and CI/CD. Experienced integrating third-party services, implementing authentication/authorization, and collaborating across product and multiple engineering teams.

Ronaldo Monsserra

Full stack developer with 8+ years building production-ready web and mobile applications across React, Next.js, Node.js, and the .NET/C# ecosystem. Proven ownership of frontend architecture (component libraries, design systems, state management) and complete backend delivery (REST/GraphQL APIs, microservices, real-time systems) on AWS and Azure. Comfortable delivering end-to-end from database schema to API and UI, while mentoring engineers and improving engineering standards through testing, linting, and CI/CD. Experienced integrating third-party services, implementing authentication/authorization, and collaborating across product and multiple engineering teams.

Available to hire

Full stack developer with 8+ years building production-ready web and mobile applications across React, Next.js, Node.js, and the .NET/C# ecosystem. Proven ownership of frontend architecture (component libraries, design systems, state management) and complete backend delivery (REST/GraphQL APIs, microservices, real-time systems) on AWS and Azure.

Comfortable delivering end-to-end from database schema to API and UI, while mentoring engineers and improving engineering standards through testing, linting, and CI/CD. Experienced integrating third-party services, implementing authentication/authorization, and collaborating across product and multiple engineering teams.

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Experience Level

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Intermediate
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Work Experience

Software Engineer at Vokal
August 1, 2024 - Present
Built a company-wide React component library and design system from scratch using Next.js, TypeScript, MUI, and Storybook to standardize UI across multiple product teams. Created reusable custom React hooks for data fetching and common component patterns to reduce duplicated logic. Established code quality standards using ESLint rules and Husky pre-push hooks, and improved test coverage with Jest. Managed state and API integration with Redux and reorganized SASS architecture for maintainability. Integrated third-party services including Segment (analytics), Cookiebot (consent management), and Bloomreach (commerce). Managed source control, CI/CD pipelines, and sprint boards using Azure DevOps.
Software Engineer at MLReef
May 1, 2023 - July 31, 2024
Modernized a legacy codebase by migrating class-based React components to functional components with hooks, improving maintainability. Built a Storybook component library from scratch using React, TypeScript, MUI, and TanStack Query. Implemented Google OAuth authentication and developed Node.js backend services. Added application monitoring using Bugsnag to speed up production issue triage. Wrote unit and integration tests with React Testing Library, enforced linting standards via ESLint and Husky, and managed repositories, pipelines, and boards in Azure DevOps.
Software Engineer at Applaudo
November 1, 2021 - May 31, 2023
Built student internet access controls for school districts (Lightspeed Parent Portal) using React, Redux, and GraphQL, with Express.js backend services using AWS and DynamoDB. Wrote unit tests for platform reliability and mentored an internal developer.
Software Engineer at BairesDev
July 1, 2021 - January 31, 2023
Led and shipped work across multiple projects: built a React Native mobile app for sharing temporary worker leads using Redux; delivered new features and bug fixes on a React/GraphQL retail platform and integrated PayPal payments; built a case/document/contact management platform for legal firms using React, MobX, and SASS with a C#/MySQL backend and Microsoft Office 365 integration.
Full Stack Developer at Coolhumans
February 1, 2021 - July 31, 2021
Built an influencer monetization social platform with React, Next.js, Redux, Firebase, and TypeScript. Implemented a Node.js/Express backend using MongoDB, JWT authentication, and Docker, delivering CRUD APIs to power the platform. Shipped a React Native companion mobile app with gesture-based interactions and animations.
Full Stack Engineer at Grupo Link
April 1, 2019 - February 28, 2021
Built an internal employee monitoring tool with real-time chat using React, Redux, Socket.IO, and a Node.js/Express/MongoDB backend. Served as principal developer on a Vue.js social network for pet owners and led a WPF/C# desktop app with video call support. Delivered an admin dashboard and a companion mobile app (React, React Native, Redux) plus a .NET Core/MySQL backend for a corporate client. Built a microservices-based API on Azure using Node.js, Express, MySQL, RabbitMQ, and Redis.
Full Stack Engineer at Sebioca
February 1, 2018 - April 30, 2019
Rebuilt the company website as a React/Redux/TypeScript single-page application. Designed and built an end-to-end product control platform using React, Redux, TypeScript, and React Native with a C#/.NET Core and MySQL backend, including Entity Framework integration.

Education

Bachelor's Degree in Computer Science Engineering at ESPOL (Escuela Superior Politécnica del Litoral)
January 1, 2018 - December 31, 2018

Qualifications

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Industry Experience

Retail, Software & Internet, Education