Eduard Castelló is a pragmatic CTO and partner with 10+ years building and scaling cloud-native platforms, currently leading rzilient to profitability by architecting an AI- and telemetry-driven IT asset management platform that supports 300+ enterprise clients and 10,000+ devices. He blends hands-on engineering in Go, Ruby, TypeScript and C++ with strong DevOps and SRE practices, cutting infrastructure costs 50% through containerization and automated CI/CD. A former engineering manager and agile coach, he excels at turning teams into high-performing units using TDD, XP and measurable health metrics. He also designs practical AI integrations—creating a custom Model Context Protocol to safely surface enterprise data to LLM-driven agents. Based in Barcelona, he’s equally at home mentoring engineers, shipping critical systems, and surfing when offline.
11 years of coding experience
15 years of employment as a software developer
Associate/Foundation Degree, Computer Science, Associate/Foundation Degree, Computer Science at Universitat de Lleida
Supports software product teams & coaches handling and visualise performance agile metrics with the Agile transformation
Contributions:117 PRs, 360 pushes, 94 branches in 2 years 10 months
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