Available for work

Hi, I amJonathan Rendón

Senior Full Stack Developer

Self-taught Engineer with over 18 years of full-stack experience across multiple industries. Specialized in React, Angular, Java, TypeScript, Node, and SQL. Reliable team player who takes initiative and prioritizes clean code.

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18+

Years Experience

Companies

10+

Technologies

About Me

I'm a self-taught Full Stack Engineer with over 18 years of experience building scalable web applications across the insurance, media, and tech industries. I've led engineering teams, architected microservices platforms, and delivered clean, performant products from design through deployment. Currently working at ESPN+ (ToolBox), I combine deep backend expertise — Java, Oracle PL/SQL, Node.js — with modern frontend skills in React and Next.js.

18+

Years of Experience

Companies

10+

Technologies

Engineers Led

Work Experience

ESPN+ (ToolBox)

Senior Software Engineer

USA

August 2022 – Present

Migration of applications developed in previous technologies to a newly developed internal framework.
Built React frontend features, UI components, and GitHub libraries focused on microservices architecture.
Led a team of 4 engineers to reach deliverables, mentored junior developers, and conducted code reviews.
Collaborated cross-functionally with stakeholders in an Agile environment.

TypeScriptGraphQLWebpackReact.jsNode.js

Tecnova (Freelance)

Senior Full Stack Developer / Lead

Santiago, Chile

July 2021 – October 2025

Evaluated and redesigned the existing Global Portal Product utilizing React, Java, and Material UI.
Built React frontend features and UI components in GitHub with a microservices architecture that increased efficiency by 30%.
Developed a multithreaded and scalable product for real-time incident report processing.
Led a team of 4 engineers, mentored staff, and conducted code reviews.
Collaborated cross-functionally with stakeholders in an Agile environment.

ReactJavaSpring BootREST APIsPL/SQLOracle

Algoritmia

Lead Engineer

Caracas, Venezuela

November 2015 – May 2021

100% migration of web portals from jQuery and Java to React and Node.js.
Designed, developed, and implemented web portals using jQuery, Bootstrap, Java, and Oracle.
Technical Team Lead for support and development of new processes for insurance company portals.

ReactGatsbyNodeExpressOracleJavaPL/SQL

Planinsa

Lead Engineer

Caracas, Venezuela

March 2011 – November 2015

Developed new modules and provided support for the web portal using PHP and Oracle, improving response time by 70%.
Migrated 100% of the web portal to the Laravel framework.
Developed new modules in Oracle Forms and designed Oracle Reports for Acsel X.

PHPJavaScriptOracleOracle FormsOracle ReportsPL/SQL

Ibsoft

Senior Engineer

Caracas, Venezuela

February 2007 – February 2011