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jonathan jaramillo
jonathan jaramillo

Full-Stack Developer

Open to offers · Member since 4 Nov 2026
Location
Manizales, Colombia
Desired salary
Unspecified
Work preference
Remote Only / Full Time, Freelance
Experience level
Mid

About

Professional summary

I am a Full-Stack Developer focused on building modular, maintainable web applications, operational dashboards, and REST APIs connected to production databases.

I work across modern frontend technologies including React, Next.js, TypeScript, Vite, JavaScript, Tailwind CSS, Redux, HTML, and CSS. I prioritize reusable components, clear user experiences, responsive interfaces, and scalable application structures.

On the backend, I develop services with Node.js, Express, PHP with CodeIgniter 3, and Python with FastAPI. I design API integrations, authentication flows, role-based access control, transactional business logic, and layered architectures.

I have hands-on experience working with MariaDB, MySQL, PostgreSQL, MongoDB, SQL, stored procedures, and relational data modeling. My work includes healthcare operations, appointment scheduling, billing, authorizations, process monitoring, inventory, and e-commerce solutions.

I am experienced in modernizing legacy systems through refactoring, separation of concerns, clean code practices, query optimization, and modular architecture. I also perform API validation and automated testing using Postman, pytest, SoapUI, and Serenity BDD.

I use Docker, Git, GitHub, AWS S3, and AI-assisted engineering tools to support requirements analysis, debugging, documentation, code review, and reliable delivery. I review and test changes carefully before integration.

Skills

44 capabilities
API IntegrationAPI TestingAuthenticationAutomated TestingAWS S3Backend DevelopmentClean CodeCode ReviewCodeIgniterContext APICSS3Dashboard DevelopmentData VisualizationDebuggingDockerfastAPIFrontend DevelopmentGit FlowHTML5Inventory ManagementJavaScriptLegacy System ModernizationMariaDBMongoDBMySQLNext.jsPHPPostgreSQLPytestPythonReactReduxRefactoringResponsive DesignREST APIsRole Based Access ControlSoapUISQLSQLAlchemyStored ProceduresTechnical DocumentationTypeScriptUI DevelopmentWeb Application Development

Tech stack & tools

Working toolkit

Application Utilities

Postman

Data Stores

MariaDBMongoDBMySQLPostgreSQL

Development

DockerGitGitHubnpmpnpmSQLAlchemyVite

Languages & Frameworks

FastAPIPyTest

Libraries

Redux

Experience

Career history

Full-Stack Developer Solutions Systems

Develop and maintain enterprise web solutions for healthcare operations, including medical appointment management, process monitoring, visual billing, authorizations, and real-time information visualization.

Build modern frontend applications with React 18, Next.js, Vite, TypeScript, and Tailwind CSS, emphasizing reusable components and clear user experiences. Integrate backend services built with Node.js, Express, PHP, and CodeIgniter 3 with MariaDB and MySQL databases, SQL queries, and stored procedures.

Deliver operational dashboard modules with KPI metrics, filters, paginated tables, status visualizations, detail modals, print and export features, and reprocessing workflows. Refactor legacy code to improve maintainability and scalability, using Git, GitHub, Docker, Postman, AWS S3, ChatGPT, and Antigravity to support controlled delivery.

Freelance Full-Stack Web Developer Independent Projects

Develop full-stack web applications using client-server and layered architectures with React, Next.js, TypeScript, Node.js, Express, Python, and FastAPI.

Create responsive interfaces focused on usability, visual clarity, and performance using Redux and Context API for state management. Design and integrate REST APIs, authentication, transactional inventory logic, and persistent data solutions using PostgreSQL, MariaDB, MySQL, and MongoDB.

Containerize development environments with Docker and manage source control and technical documentation through Git and GitHub in alignment with client business requirements.

Education

Learning history

University of Manizales

Systems Engineering, Systems Engineering

In progress.

Soy Henry

Full-Stack Developer Bootcamp, Full-Stack Web Development

Graduated from an intensive full-stack bootcamp with more than 800 hours of hands-on projects.

This professional hasn’t added portfolio projects yet.

This professional hasn’t listed any services yet.

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