Senior Technology & Cybersecurity Leader

Gilson Braggion

Information Security & DevSecOps Manager · IT Project Management · Software Architecture & AppSec

17+ years of experience across the financial and technology sectors, evolving from software development and system architecture into enterprise information security, DevSecOps and security operations. Currently leading SOC, Cyber Threat Intelligence, Cloud Security and AppSec at Livelo.

São Paulo, Brazil · English (C2) · Spanish (B1)

View LinkedIn See Experience
Gilson Braggion
17+
Years in tech & finance
97%
Fraud reduction in regulated banking
US$ 2M
Annual savings via microservices
300K+
Daily active users supported

About

Professional Summary

Senior Technology & Cybersecurity Leader with a strong career progression that started from a solid foundation in software development and system architecture, moving through IT project management and multidisciplinary team leadership, and now leading enterprise information security, DevSecOps and security operations.

With a proven track record of aligning security architecture with business goals, I have driven high-impact initiatives at top-tier organizations such as Livelo, Banco Safra and Banco Santander. Key achievements include reducing fraud by 97% in regulated banking systems, generating US$ 2M in annual operational savings through microservices optimization, and restructuring critical platforms to support over 300,000 daily active users with high availability.

I specialize in integrating software engineering with robust protection protocols — deploying end-to-end AppSec programs, automating SAST/DAST frameworks, and building a Security Champions culture.

Expertise

Core Skills

Leadership & Strategy

Information Security Management CSIRT & Incident Response IT Project Management Budget Management Team Leadership (17+) Agile (PSM I) IT Governance Risk Management

Information Security & DevSecOps

AppSec (SAST/DAST) Red Team / Pentest Threat Hunting Threat Modeling EDR/XDR (CrowdStrike) SIEM (Splunk) SOC & CTI Zero Trust NIST CSF SOC 2 Edge Protection (Akamai)

Architecture & Software Engineering

Microservices Architecture Java (Spring Boot) Node.js API Security (OAuth2, OIDC) Cryptography API Gateway Legacy Modernization

Cloud & DevOps

AWS GCP Azure CSPM (Wiz) Docker Kubernetes CI/CD Pipelines Infrastructure as Code

Career

Work Experience

Information Security Manager 07/2025 – Present
Livelo — São Paulo
  • Lead SOC, Cyber Threat Intelligence (CTI) and Cloud Security, including threat hunting over SIEM/EDR telemetry and incident response aligned to NIST CSF (Identify–Protect–Detect–Respond).
  • Align Cloud Security architecture with business objectives (Zero Trust: verified access and least privilege), reducing fraud and cloud incidents with continuous audit-ready controls (SOC 2 model).
  • Strengthen AppSec and DevSecOps (SAST/DAST in the pipeline) and coordinate the penetration testing / Red Team cycle with vulnerability management, remediation and retest.
Project Manager & Software Architecture 02/2021 – 07/2025
Banco Safra — São Paulo
  • Led a 12-person multidisciplinary team (architects, backend developers and web designers) delivering and maintaining critical banking systems, including authentication, encryption and secure libraries.
  • Managed six concurrent projects with a structured prioritization method to optimize resource allocation and keep delivery aligned with strategic goals.
  • Improved overall performance by 85% and reduced login time from 8s to 1.7s through architectural modernization.
  • Strengthened authentication and encryption (OAuth2/OIDC) in line with Zero Trust, eliminating critical vulnerabilities and protecting 3,000+ concurrent active users.
Project Coordinator 07/2018 – 02/2021
Banco Santander — São Paulo
  • Led the "Nova Cobrança" project, ensuring 100% of payment slips were registered with CIP and reducing fraud by 97%.
  • Designed and implemented microservices that reduced Mainframe MIPS consumption by 90%, generating US$ 2M in annual savings.
  • Coordinated technical leadership of 6 squads (6 members each) adopting Agile Scrum, driving continuous improvement and faster delivery.
Tech Lead 03/2016 – 07/2018
Vector ITC Group — São Paulo
  • Led the migration of 150 pages from ASP to Java, eliminating licensing costs and improving scalability.
  • Delivered updates across 8+ financial operations for Santander (payments, transfers, vehicle services and taxes), ensuring compliance and efficiency.
  • Optimized performance to support 300,000+ daily accesses and 9,000 concurrent users with high availability.
Specialist Systems Consultant 10/2014 – 03/2016
BRQ Digital Solutions — São Paulo
  • Cielo: upgraded the receivables portal, reducing payouts from 30 days to 1 day and cutting call-center volume; built 50+ APIs for mainframe integration; reduced customer-service volume by 75%.
  • Itaú: refactored 20+ legacy services from a proprietary language to Java and upgraded login services to serve 60M+ customers with high performance and security.
Coordinator / Tech Lead 05/2011 – 09/2014
Digital Brasil — São Paulo
  • Led a 16-member team (BPM analysts, Java developers and DBAs) building a BPM/ECM web portal, delivered 15% ahead of schedule.
  • Designed a dashboard with 4 modules (Documents, Tasks, Next Steps, Actions) generating 15+ PDF reports; raised team productivity by 20% with Agile practices.
Java Developer 04/2010 – 04/2011
K2 / Accenture — São Paulo
  • Ensured systems integration across 3 ports, 2 mines and multiple Vale do Rio Doce operational sites.
  • Evolved an MES portal within a nationwide program involving 50+ developers.
Java Developer 11/2008 – 04/2010
Softleasing — São Paulo
  • Part of a 4-developer team modernizing a Clipper application to Java.
  • Developed 25 official PDF documents for submission to import/export authorities, ensuring compliance at Brazilian ports.

Background

Education, Languages & Certifications

Education

  • Postgraduate Specialization — Computer Forensics
    Universidade Presbiteriana Mackenzie, São Paulo
  • Bachelor's Degree — Information Systems
    Universidade Bandeirante (Uniban), São Paulo

Languages

EnglishAdvanced (C2)
SpanishIntermediate (B1)
PortugueseNative

Certifications

  • Professional Scrum Master (PSM I)
  • English Proficiency

Get in touch

Contact

Open to senior and executive opportunities in technology leadership, information security and software architecture. Feel free to reach out.

gilson.braggion@gmail.com LinkedIn GitHub