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Malt Strategy
Celso BianchiCB

Celso Bianchi

Technology Specialist

€320/day
Madrid, ES
15+ years
Microservices
C#
Python
Event-driven architecture
Software Development

Average response time: 1 hour

About 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
E-commerce
Banking and Financial Services
Telecommunications
Private Equity
Consulting and Audits

  • Spanish

    Native or bilingual

  • Portuguese

    Native or bilingual

  • English

    Conversational

Can work on-site
Madrid (up to 50km)

Experience

  • Via varejo
    SOFTWARE ENGINEERING SPECIALIST II
    E-COMMERCE
    April 2020 - Today (6 years and 2 months)
    São Paulo, Brazil
    Role 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
    Azure Kubernetes Service ASP.NET Core C# Cybersecurity Microservices
  • XP Investimentos
    Senior Backend Analyst
    BANKING AND INSURANCE
    April 2018 - April 2020 (2 years)
    São Paulo, Brazil
    Role 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 SA
    Technical Lead
    E-COMMERCE
    April 2017 - April 2018 (1 year)
    São Paulo, Brazil
    Role 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
Check out Celso's experience

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Education

  • Computer Science and Information Technology
    Universidad Nacional Pedro Ruíz Gallo
    Computer Science and Information Technology
  • Developing ASP.NET MVC 4 Web Application
    Microsoft Academy
    Developing ASP.NET MVC 4 Web Application
Check out Celso's education

Skill set

ASP.NET Core
Domain Driven Design
Hexagonal Architecture
Apache Kafka
Kubernetes
Azure Kubernetes Service
Cybersecurity

Categories