Tech Jungle Playbook

Oliver Alonso is a full-stack engineering lead and author with 11 years of experience helping developers navigate the modern tech job market and build resilient careers.

He has led high-impact engineering teams across startups and scale-ups, shipped complex systems in React, Node.js, Python, and Go, and founded CrimeMapX.com while mentoring more than twenty engineers into senior roles. After facing four layoffs in his own journey, he created Tech Jungle Playbook: Break In and Stand Out as a practical, no-fluff guide for engineers to master tailored applications, interviews, and long-term career strategy in a brutally competitive landscape.