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I’m Juan from Argentina, Software Engineering Manager at RELP, with 20+ years in tech. I lead the development and security of a high-impact app, covering frontend (React, Next.js), backend, cloud, and DevSecOps. I specialize in Python, FastAPI, Go, Rust, and cloud-native architectures (AWS, GCP, Azure). I focus on building secure, scalable APIs and systems that perform under pressure. I’m passionate about clean code, security (JWT, HTTPS, CORS), and DevOps tools like Docker, Kubernetes, Terraform, and serverless. I teach Data Structures and CS since 2018, and authored technical books and articles. I’ve published for Argentine and international outlets including ACM, NewsForge, Linux Magazine, and reviewed books for O’Reilly. As a speaker, I’ve presented at PyCon Spain and Nerdearla, and organized PyCon Argentina and PyDays. I mix code, demos, and real-world lessons. I build robust systems with strong architecture, monitoring, and delivery.