Coursera
Issued byUniversity of California, Irvine
Learn English: Beginning Grammar
Coursera specialization (UC Irvine) on beginning English grammar: word forms, verb tenses, and question formation.
3 courses completed
I'm Julián Martínez Espitia. I merge clean architecture with extreme visual experiences using React, TypeScript, Spring Boot, and GSAP.
7th Semester Software Engineering at University of Cartagena.
I'm a 7th-semester Software Engineering student at the University of Cartagena, Colombia. I focus on frontend and full-stack development, building modular platforms like SkyVault and SelanFlow using React, TypeScript, Next.js, and Spring Boot.
I am deeply passionate about UI/UX design and crafting fluid interfaces. In my free time, I help fellow students by teaching a basic introductory course on Java and Spring Boot fundamentals. I'm always eager to learn, share knowledge, and take on new technical challenges.
Interactive commercial aircraft catalog with technical comparison, user dashboard, incident moderation, and real-time notifications via WebSocket.
Full-stack app combining task management, Pomodoro, and OS scheduling simulation (FIFO vs Round Robin) with queue, Gantt, and real-time metrics visualization.
Automated airport gate management system based on a Deterministic Finite Automaton (DFA). Dynamic gate allocation, waiting queues, and real-time monitoring.
Java 21 CLI CPU simulator modeling the fetch–decode–execute cycle, cache HIT/MISS events, and unified (UMA) vs segmented memory with PCIe penalty. Deterministic and reproducible.
Next.js web app modeling a series RLC circuit in AC, solving the ODE with Runge–Kutta 4, visualizing impedance, phasors, and damping regime, and linking the model to five real-world industrial cases.
Documentary case study of an MCP server for BrevKu that orchestrates security scans and observability via GitHub Actions and Cloudflare Workers, with 17 tools, Notion sync, and AI agents — no dedicated UI.
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I'm looking for junior opportunities, freelance projects, and technical collaborations where I can contribute on frontend, full-stack architecture, or UI systems.