Willian Dallastella
Principal Backend Engineer at FREE NOW
Barcelona, Catalonia, Spain
Summary
👤
Senior🎓
Top SchoolWillian Dallastella is a Principal Backend Engineer based in Barcelona with over 8 years focused on building cloud-native, microservices-driven systems using Java/Kotlin, Spring, Docker, and Kubernetes. He combines deep experience in messaging (ActiveMQ, RabbitMQ, Kafka), databases from PostgreSQL to DynamoDB, and CI/CD tooling to deliver resilient, production-grade platforms for mobility and finance. At FREE NOW he progressed from software engineer to principal, shaping backend architecture and operational practices for high-throughput services. His background includes large-scale banking and HR systems at HSBC, GFT, and Haufe Group, giving him a strong footing in enterprise-grade security and integration patterns. Familiar with both Agile and traditional lifecycles, he brings pragmatic engineering judgment and a hands-on mindset—equally comfortable defining architecture as troubleshooting a Netty/Tomcat production issue.
9 years of coding experience
12 years of employment as a software developer
Specialization Computer Software Engineering, Specialization Computer Software Engineering at Universidade Federal do ParanáGraduate Bachelor Computer Science, Graduate Bachelor Computer Science at Universidade Positivo
English, Portuguese
Stackoverflow
36reputation
887reached
6answers
1question
Github Skills (50)
linux10
java10
openfeign10
reactive9
spring9
spring-boot9
feign9
cloud-native9
reactor9
spring-cloud9
openapi8
spring-cloud-config8
quarkus8
spring-cloud-circuitbreaker8
kubernetes8
Programming languages (6)
Github contributions (5)
wllianwd/my-nix-os
Nov 2021 - May 2026
Contributions:164 pushes, 3 branches in 4 years 7 months
wllianwd/quarkus-spring-cloud-config-maven-plugin
Apr 2020 - Jan 2023
Plugin that retrieves the properties from Spring Cloud Config during a Quarkus build.
Contributions:31 commits, 8 PRs, 115 pushes in 2 years 9 months
quarkusspringspring-cloud-config
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