CBAcerca de Celso
Senior Software Architect with over 20 years of experience in backend development, software architecture, and technical leadership, with deep expertise in cybersecurity, fraud prevention, and high-performance systems. Skilled in microservices, event-driven architecture, cloud-native applications, and biometric authentication technologies. Proven ability to lead engineering teams, define secure architectures, and deliver scalable systems across finance, retail, and industrial sectors.
Core Skills
• .NET Core, C#, Microservices, DDD, Event-Driven Architecture, Azure, AKS, Kafka
• IAM, Biometric Auth (Face, Fingerprint, Device), MFA, JWT, OAuth2, OpenID Connect
• Azure DevOps, Docker, Kubernetes, GitHub Actions, Jenkins, Prometheus, Grafana, ELK
• Scrum, Kanban, Team Management, Mentoring, Architecture Governance, Stakeholder Engagement
Español
Bilingüe o nativo
Portugués
Bilingüe o nativo
Inglés
Competencia profesional básica
Acepta trabajo presencial
Madrid (hasta 50 km)
Experiencia
- Via varejoSOFTWARE ENGINEERING SPECIALIST IIE-COMMERCEabril de 2020 - Hoy (6 años y 4 meses)São Paulo, BrasilRole Summary:Senior Software Engineer focused on secure and scalable systems architecture within the .NET ecosystem. Proven track record in fraud prevention, biometric authentication, and regulatory compliance (GDPR, PCI-DSS) in mission-critical environments.Key Responsibilities:• Led two specialized engineering teams: one focused on biometric devices and security, and the other on risk profiling using data intelligence engines.• Defined and enforced architectural and security standards, enabling scalable and resilient solution delivery.• Designed and implemented secure microservices architecture on Azure Kubernetes Service (AKS).• Developed and deployed MFA and biometric authentication systems integrated with real-time risk scoring engines.• Automated CI/CD pipelines with Azure DevOps, incorporating static code analysis and vulnerability scanning.• Collaborated with legal and compliance teams to ensure alignment with regulatory frameworks (GDPR, PCI-DSS).Key Achievements:✅ Reduced fraud by 30% through biometric authentication and data-driven risk analysis.✅ Decreased production security incidents by over 60% through standardized access controls.✅ Improved deployment efficiency by 35% via secure CI/CD automation.✅ Passed all security audits with no critical findings.Technologies & Tools:• Languages & Frameworks: C#, .NET 6/7, ASP.NET Core, Web API, Entity Framework Core• Cloud & DevOps: Azure (AKS, Functions, Key Vault, Monitor), Azure DevOps• Databases & Messaging: SQL Server, Redis• Security & Authentication: OpenID Connect, OAuth2, JWT
- XP InvestimentosSenior Backend AnalystBANCA & SEGUROSabril de 2018 - abril de 2020 (2 años)São Paulo, BrasilRole Summary:Contributed to the development of XP Bank’s core transactional platform, a large-scale greenfield initiative designed to power the bank’s digital operations with high concurrency and real-time processing capabilities.Key Responsibilities:• Developed and maintained high-performance backend systems for processing financial transactions.• Collaborated with the backend team to build the foundational infrastructure for XP Bank’s digital banking system.• Designed modular, scalable microservices using Domain-Driven Design (DDD) principles.• Implemented event-driven architecture with Apache Kafka to enable real-time processing and decoupled service communication.• Deployed and maintained services in Azure Kubernetes Service (AKS) ensuring high availability, observability, and resilience.Key Achievements:✅ Delivered the core transactional platform used by XP Bank to process high-volume operations.✅ Improved scalability to support millions of real-time events with low latency.✅ Enabled seamless inter-service integration using Kafka-based messaging.Technologies & Tools:• Languages & Frameworks: C#, .NET Core• Architecture: Microservices, Domain-Driven Design (DDD), Event-Driven Architecture• Cloud & Containers: Azure Kubernetes Service (AKS), Docker, Kubernetes• Messaging & Storage: Apache Kafka, SQL Server, Redis• Monitoring: Prometheus, Grafana• APIs: RESTful Services
- Via Varejo SATechnical LeadE-COMMERCEabril de 2017 - abril de 2018 (1 año)São Paulo, BrasilRole Summary:Led backend engineering at Via Varejo S.A. to modernize legacy systems using .NET technologies. Worked closely with cross-functional teams to deliver scalable backend services in a high-volume retail environment.Key Responsibilities:• Managed a backend engineering team delivering enterprise-grade solutions with .NET.• Defined technical architecture and backend solution designs.• Supervised the creation of integration layers and internal services aligned with business needs.• Introduced Agile methodologies (Scrum) to improve collaboration and delivery speed.• Led code reviews, mentorship, and architecture discussions within the team.Key Achievements:✅ Reduced delivery time through Agile frameworks like Scrum.✅ Improved code quality and performance via architectural standardization.✅ Delivered scalable backend systems supporting high-volume retail transactions.Technologies & Tools:• Languages & Frameworks: C#, .NET Framework / .NET Core, ASP.NET• Architecture: Microservices, Domain-Driven Design (DDD)• Cloud & DevOps: Azure DevOps, Git, Jenkins, Visual Studio• Databases & Storage: SQL Server• Project & Agile: Scrum, Jira• APIs: RESTful Services
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Formación
- Computer Science and Information TechnologyUniversidad Nacional Pedro Ruíz GalloComputer Science and Information Technology
- Developing ASP.NET MVC 4 Web ApplicationMicrosoft AcademyDeveloping ASP.NET MVC 4 Web Application