03/20/2026 updated

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Senior Java Tech Lead & Microservices Architect

Barcelona, Spain Informatics Engineer
Barcelona, Spain Informatics Engineer

Profile attachments

Harold CV english (4).pdf

Java (Programming Language)Spring SecurityArtificial IntelligenceAutomationConstructionBusiness SoftwareCloud ComputingCode GenerationSoftware QualityDatabasesContinuous DeliveryRelational DatabasesDevOpsScalabilityInfrastructure ManagementSpring FrameworkPostgreSQLMariaDBMongoDBNoSQLOAuthOracle ApplicationsRed Hat Enterprise LinuxSecurity ManagingSoftware EngineeringSQL DatabasesWorkflowsInternationalizationOktaSpring BootVue.jsEvent Driven ArchitectureContainerizationApache KafkaAtlassian BitbucketRestful ApiTerraformSpring BatchDockerJenkinsMicroservices
Java Technology & Microservices Architecture
Extensive experience in Java technology with over 18 years developing business applications, specialized in microservices architecture using Spring Boot, Spring Security, and Spring Web Flow for complex enterprise solutions

AI & Code Generation Expert
Expert in AI agent modeling for code generation using Copilot-based workflows, defining agent behaviors, prompts, contextual rules, and interaction patterns to improve software development productivity and code quality

DevOps & Automation
Responsible for integration and continuous delivery lifecycle with Jenkins, Docker construction and registration, automation of code constructions through Bitbucket and Pull Requests

Database Technologies
Development expertise with NOSQL databases including MongoDB and MariaDB, as well as SQL relational databases like PostgreSQL and Oracle, backed by ORM tools for agnostic storage

Security Implementation
Expert in OAuth2 protocol implementation using Spring OAuth Server and Keycloak from Red Hat for secure authentication and authorization systems

Web & SPA Development
Expert in SPA applications with Vue.js 3, creation of reusable components, i18n internationalization, and integration with REST services developed with Spring and secured with OAuth2

Kafka & Event-Driven Architecture
Experienced developer proficient in building and managing distributed messaging systems using Spring framework, skilled in implementing event-driven microservices ensuring high performance, scalability, and reliability

Cloud & Infrastructure
Hands-on experience with infrastructure-as-code and containerization using tools such as Terraform and Docker, comfortable working with PostgreSQL and other relational databases

Languages

EnglishFluentSpanishNative speaker

Project history

TechLead for Dev Spain

Decathlon
Leading a squad of 10 developers to migrate and enhance applications for transportation to/from Barcelona port, bringing better practices and improving skills for the development team

Architect

Paradigma Digital
Architect for VxL (Voluntaris per la llengua) CTTI Catalonia, responsible for VxL product definition, application modernization document for microservices and devops

Tech Lead

Stacks
Tech Lead in charge of 3 different projects (OMI360, Tref, Maiia gestion) in the medical field for Cegedim France and Cegedim Cairo, leading team of 15 developers

Solutions Specific Knowledge Leader

Everis
Solutions Specific Knowledge Leader in charge of different projects including software audits, architecture improvements, and migration projects using various Java technologies

Architect / Developer

Grupo GV18 Pro, C.A
Architect and Developer in charge of the MedicalPro solution for health professionals, managing medical records, automation processes, and client management systems

Architect

GVT Grupo Venezolano de Tecnologia
Architect in charge of developing complete management and appointment software for health sector using Java technology, deployed on Amazon EC2 servers with private access

Developer

EGT Consulting
Implementation of development patterns, web applications development in all layers using MVC under JSP, Struts and Hibernate technologies

Developer

Integris Consulting
Analysis and development of WEB applications under Java technology, implementation and configuration of application servers

Junior Web Developer

GIOSEG
Junior Web developer on Java technology, in charge of the development of the view layer of a WEB application for the insurance sector using HTML, CSS and Struts technology

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