David Costoya
Technical Software Architect at Sage
Barcelona, Catalonia, Spain
Summary
👤
Senior🎓
Top SchoolDavid Costoya is a Technical Software Architect with 10 years’ experience designing and delivering cloud-native, microservices platforms for enterprise customers across finance and SaaS. Currently at Sage, he shapes a reference architecture used by 300+ developers, driving productivity through .NET, Docker, AWS CDK and CI/CD tooling while keeping documentation and observability practices tight. Previously he led large-scale migrations to microservices at Dow Jones and split a 15-year monolith at UserZoom, blending DDD, event-driven patterns and pragmatic risk evaluations. Known for creating internal productivity libraries and templates, he pairs hands-on implementation with stakeholder coordination from PMs to VPs. Based in Barcelona, he combines German academic training with a practical track record of greenfield investigations and operationalizing complex distributed systems.
10 years of coding experience
9 years of employment as a software developer
Master's degree, Praktische Informatik, Master's degree, Praktische Informatik at Hochschule für Technik und Wirtschaft des Saarlandes SaarbrückenDiplomatura / Ingeniería Técnica, Ingeniería Técnica en Informática de Gestión, Diplomatura / Ingeniería Técnica, Ingeniería Técnica en Informática de Gestión at Universidad de Vigo
Spanish, English, German, Galician
Github Skills (75)
hexagonal-architecture10
onion-architecture10
ddd10
dotnet9
instagram-api9
clean-architecture9
cpp9
dotnet-core9
php9
csharp9
grpc8
api8
architecture8
cqrs8
python8
Programming languages (5)
Github contributions (5)
pereiren/dotnet-template-onion
Jan 2021 - Oct 2022
Onion Architecture with .NET 6/.NET Core and CQRS/Event Sourcing following a DDD approach
Contributions:4 reviews, 5 commits, 3 PRs in 1 year 9 months
ddd-samplecqrsclean-architecture-boilerplateboilerplate-templatehexagonal-architecture
pereiren/centollo-bot
Apr 2017 - Sep 2020
Contributions:1 push, 1 branch in 3 years 4 months
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