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Osvaldo Castillo

@osvaldocastillo

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Senior Software Engineer at ISUCORP building finance, energy, and legal platforms with React, Node.js, and TypeScript.

Cuba

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What I'm looking for

I’m seeking a challenging Software Engineering role where I can use my full-stack expertise, cloud architectures, modern web frameworks, and emerging AI capabilities to solve enterprise challenges and deliver high-impact technology solutions.

At ISUCORP, I develop web platforms across energy, finance, industrial, and legal technology projects. For Wealth Counsel, I built client financial planning and family-resource features with React, Node.js, TypeScript, and PostgreSQL.

On the Legal Assistance Platform, I implemented legal document management, a child support calculator, and secure real-time messaging. I also worked on identity and multi-tenancy architecture for the platform.

For the Web Scraping Intelligence Platform, I migrated a legacy .NET codebase to Node.js and TypeScript and integrated AI-powered data extraction. I developed a React interface that helps stakeholders track data changes.

Earlier, at GEOCUBA, I developed GeoLand, an agricultural mapping platform using React, Leaflet, and geospatial services. I’m looking to bring my full-stack experience with cloud platforms and AI capabilities to a Software Engineering role.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

ISUCORP

Jan 2021 - Present (5 years 9 months)

Architected and developed comprehensive web-based platforms across multiple sectors including Energy, Finance, Legal Tech, and Industrial. Led full-stack development using React, Node.js, and TypeScript, and implemented CI/CD pipelines and cloud infrastructure.

React NodeJS NestJS TypeScript PostgreSQL Docker Gitlab DevOps AWS Azure Tailwind TanStack Zustand JWT Swagger Scrum Clean Code SOLID Dry KISS

Current

Mid Software Engineer

Current

ISUCORP

Jan 2021 - Present (5 years 9 months)

Designed and developed a web-based platform for managing client financial plans using .NET frameworks and C#. Streamlined banking workflows and implemented CI/CD pipelines with Azure DevOps.

.NET C#ASP.NET Core ASP.NET MVC Angular SQL Server Azure DevOps Azure Web Services DDD Entity Framework LINQ REST APIs Scrum

Junior Software Engineer

GEOCUBA

Jan 2020 - Dec 2021 (1 year 11 months)

Developed an interactive agricultural map platform for land productivity analysis using React and Node.js. Integrated geospatial services and managed full software development lifecycle.

NodeJS React Leaflet Geoserver OpenLayers ArcGIS PostgreSQL MongoDB Redux JWT GitHub Heroku Scrum

Software Engineer

Personal Project

Jan 2019 - Dec 2020 (1 year 11 months)

Designed and developed an Android application integrating Augmented Reality for the Sweet 15 celebration experience. Implemented UI/UX, multimedia elements, and AR features.

Android Java Unity Augmented Reality IntelliJ IDEA Android Studio Git Scrum

Software Engineer

ENCOMED

Jan 2017 - Dec 2018 (1 year 11 months)

Developed a full-stack inventory management platform for medical supplies using Vue.js and Symfony. Implemented data ingestion pipelines and REST APIs.