Sergio De Candelario Delgado is a Senior Backend Engineer with 11 years of experience designing and migrating resilient web platforms across PHP, Python and Go landscapes from Barcelona. He combines strong domain-driven design and hexagonal architecture expertise with hands-on experience in event sourcing, CQRS and DevOps practices—recently migrating game infrastructure and contributing shared libraries at Socialpoint. Sergio has a track record of mentoring teams and bridging product, systems and external DevOps providers to improve autonomy and reliability. An active contributor to DDD examples on GitHub (notably CodelyTV’s PHP DDD project), he brings pragmatic knowledge of distributed systems, GraphQL/Django and FastAPI greenfield work. Colleagues value his emphasis on testable, maintainable code and clear communication that turns architectural principles into operational improvements.
11 years of coding experience
13 years of employment as a software developer
Formación Profesional Grado Superior: Desarrollo de Aplicaciones Informáticas Programación informática, Formación Profesional Grado Superior: Desarrollo de Aplicaciones Informáticas Programación informática at IES Joan d'Austria
🐘🎯 Hexagonal Architecture + DDD + CQRS in PHP using Symfony 7
Role in this project:
Backend Developer
Contributions:23 commits, 5 PRs, 13 comments in 1 year
Contributions summary:Sergio primarily focused on implementing backend functionalities within the PHP-based DDD (Domain-Driven Design) project. Their contributions included the creation of features such as liking a video and creating courses. They added new domain models, application services, and API endpoints, demonstrating a strong understanding of the project's architecture and domain logic. The commits reveal a focus on building and integrating the backend components of the application, particularly around user interaction and content management.
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Sergio De Candelario Delgado - Senior Backend Engineer at Socialpoint