Freelancer profile translated to English.
Back to original languageAbout Alexandro Marcos
My work should speak for me, both collectively (the most important thing is to be a team, speak the same language, and grow together, because if one leg of the table is wobbly...) and individually (contributing and showing my colleagues that efforts lead to results), and that's why I strive to leave my mark wherever I go. That's how intense I am about work, always a leader and not a boss, and I would follow to the ends of the earth those who know what they're talking about, are organized, and like to teach and grow. I would never be on the side of those who simply pretend, make excuses for excellence, or lead to chaos. Having different ideas isn't bad if you're open to growth and listening to others.
Spanish
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- METRICAKafka Architect, Solutions ArchitectBANKING AND INSURANCEDecember 2025 - Today (6 months)Santa Cruz de Tenerife, SpainSolutions Architect specialized in real-time data ecosystems powered by the Confluent Platform. My expertise lies in bridging the gap between high-availability infrastructure strategic design and operational excellence.Solution Design (HLD/LLD): Authoring robust technical documentation to ensure scalable and resilient deployments.Operational Design (ALM): Defining application lifecycles, automating maintenance tasks, and developing operational tools for support teams. This includes standardizing and automating operations through Python scripting and building Java-based applications integrated via API contracts.Infrastructure Optimization: Implementing advanced partitioning and load-balancing configurations to maximize cluster parallelism and efficiency.SkillsCore: Confluent Platform, Apache Kafka, Kafka Connect, Bidirectional Cluster Link, Operator, C3, Kraft, RBAC, Brokers, Schema Registry, Rest Proxy, ksqlDB, Boostrap, GSLB, VIP, Ingress Gateway, Load Balancer, MDS(Metadata Service), CRDs, CRs, Confluent Apis (Embedded Rest Proxy Api and Kafka Connect Api), Helm,...Design: High-Level Design (HLD), Low-Level Design (LLD).DevOps & API: OpenAPI 3.0, Embedded REST Proxy API, Kafka Connect API, CI/CD, Tekton, ArgoCD, Jenkins, GitLab, Artifactory, Kubernetes, Vault (PKI), Microsoft Entra ID (Azure), YAML, Prometheus, Grafana, JMX, Spring Boot.Operations: Application Lifecycle Management (ALM), Monitoring, and Alerting.KafkaConfluentKubernetesHelmGovernance
- VASSSolutions Architect, Microservice Architect, Tech Lead and DeveloperSeptember 2024 - December 2025 (1 year and 3 months)Solutions Architect, Microservice Architect, Tech Lead and Developer on BBVA Algoframework, creating new solutions for them:Complete domain of Nova Architecture and its structures (connections between layers and ways of working).Creation of APIs Swagger, Microservices, Libraries, Jira Government Petitions with connections to external APIs...Creation of VIRIATO app as unique developer for all business from 0 to put it on PRODUCTIONResponsible for connecting credit pricer applications to the new computing grid for Symphony IBMCreation of Handler Exceptions with aspects for NOVA microservices architectureResponsible for updating the version of Hazelcast and fixing problems with old versions of Hazelcast.Use of Cucumber-Gherkins test in microservices.Responsible for creating patterns of work for the team to work in an orderly manner.Creating new gitflow with Nova to work in an orderly mannerResponsible to create the execution from local with all connections for the microservices (including front from local) for debug and fix problems previous upload to environments (Previously it uploads to test directly in PRE environment)Hexagonal architecture and domain driven designSpring Boot 2 and Java 11 (reactive and non-reactive)Development of APIs using API First methodology and checked by the APIs governance groupSpring Cloud (Spring gateway, traceability, monitoring...)Kafka Streams, Kafka Consumer and Kafka ProducerSpring Hateoas (pagination)MapstructsLombokSpring data (jpa + r2dbc)MavenATDD with Cucumber and Gherkins with 65% mandatory test coverageCleanCode Philosophy (My role also involves explaining the importance of following good practices)XMAS (apigateway-reverse proxy with security for NOVA, like apigee or apiconnect)CI/CD using jenkins jobs (Jenkins, sonar, artifactory...)ArtifactoryJiraScrum MethodologyKubernetes and DockerGitLab
- IRIUMSolutions Architect, Microservice Architect, Tech Lead and DeveloperNovember 2022 - October 2024 (1 year and 11 months)
- Solutions Architect, Microservice Architect, Tech Lead and Developer on Confirming-Factoring Santander Spain Bank, creating new solutions for them:
- 1st Tech Lead in the new PreConfirming project of Confirming International Santander Bank based on Payment Orders
In charge of the transformation of business domain objects to technical domain objects, creating a complete architecture for the project based on multimodular Hexagonal Architecture with DDD and developed under the framework of the Spring framework through multimodular microservices and fully supporting us by:- Hexagonal architecture and domain driven design- Spring Boot 3 and Java 17- Development of APIs using API First methodology and checked by the APIs governance group- Reactive microservices with Spring Webflux with R2dbc and non-reactive microservices api-rest spring-data- Spring Cloud (Spring gateway, traceability, monitoring...)- Kafka Streams, Kafka Consumer and Kafka Producer- Spring Hateoas (pagination)-Mapstructs-Lombok-Maven- ATDD with Cucumber and Gherkins with 80% mandatory test coverage- CleanCode Philosophy (My role also involves explaining the importance of following good practices)- API Connect- CI/CD with Standard Gitflow- Sonarqube-Nexus- Jira- Scrum Methodology- Openshift (Kubernetes and Docker)-GitHubMy role is also that of developer since we are only 2 people in the development team at present, and apart from the development tasks that correspond to me, I also manage the configurations of the deployments, of the gateways, of the security in the micros, the jenkinsfile, ... and also the creation of the micros and configurations of the archetype of our team with their modifications and maven configurations.
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Education
- Scrum Master Certification from Scrum Manager¡A Tu Ritmo!®Certificación Scrum Master de Scrum Manager
- DegreeUniversity of La Laguna2011Licenciatura