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CTO - Chief Technology Officer @ Catho

About

Executive with experience in defining and delivering technology strategies, managing product development teams in mission-critical environments, and working with multidisciplinary teams. Expertise in technology budget management, Agile processes, cloud solutions, high-availability infrastructure, disaster recovery, Information Security, IT management, and DevOps culture.As a CTO with over 20 years of experience in Technology, my focus is on transforming technology into a competitive advantage and sustainable growth. At Catho, I led the transition to a freemium business model, reversing revenue trends to achieve double-digit growth within just two https://www.linkedin.com/redir/suspicious-page?url=years%2eMy approach combines strategic vision with technical execution in mission-critical environments, with highlights including:* Digital Transformation: Modernizing legacy systems into cloud-based microservices architectures (AWS).* Scalable and Resilient Architectures: Building systems designed for high performance and stability.* AI Integration: Applying Machine Learning and LLMs to deliver customer solutions and optimize internal processes.* Operational Efficiency: Achieving a 30% YoY reduction in Cloud costs through strategic optimization.* Culture and People: Leading multidisciplinary teams focused on Agile methodologies and DORA Metrics, increasing the TrustIndex (GPTW) by 20 percentage points.* Cybersecurity: Ensuring PCI-DSS compliance, structuring offensive and defensive security teams, and applying frameworks and controls to increase security maturity.I believe that technical excellence must go hand-in-hand with people development and a data-driven approach.

Country

Brazil

City

São Paulo

Industry

Internet

Skill

Cybersecurity, People Management, Machine Learning, Solution Architecture, MySQL, Linux, Load balancing, Virtualização, Web Application Firewall, Replication Technologies, MVC, Operating Systems, Load Balancing, Smarty, Scrum, PHP, CSS, Data Center, Network Security, Apache

Experience

CTO - Chief Technology Officer

Catho

2020-1 - Present · 6 yrs 9 mos

São Paulo Area, Brazil

- Monolithic systems transformation through service-oriented architecture and microservices using Cloud. - Unification and integration of Catho and Redarbor platforms, as well as Salesforce CRM, ERP, and the global services platform. - AWS as the application hosting strategy. - Development of features with AI/ML for job and resume search and recommendation. - Implementation of LLMs to assist candidates with CV creation and recruiters with job posting generation. - Use of LLMs for application behavior diagnostics via logs, improving platform quality. - Delivery of products and solutions to clients through scalable and resilient applications. - Management of engineering/software development teams, organized into squads and monitored using DORA Metrics. - Organization of Cyber Security teams (Red/Blue Team and GRC).

Head of IT Infrastructure

Catho

2013-1 - 2020-1 · 7 yrs 1 mo

Sao Paulo

- Telephony and Call Center Systems - Service Desk and Help Desk - Redundancy and high availability in MySQL - Geographic redundancy of data centers and web traffic balancing - Virtualization of systems and services - Security systems - Definition of scalable and available system architectures Private cloud infrastructure (Cloud Computing)

Network and Database Infrastructure Manager

Catho

2009-8 - 2012-12 · 3 yrs 5 mos

Sao Paulo

- Implementation of F5 LTM (Local Traffic Manager) for MySQL traffic balancing. - Implementation of Imperva WAF (Web Application Firewall). - Implementation of Security Seals (Site Blindado and Rede Segura). - Implementation of geographic contingency with two data centers operating simultaneously (active-active): - Network topology. - Implementation of F5 GTM (Global Traffic Manager). - Geographic replication in MySQL. - Execution of two data center migrations (Moving). - Implementation of NetApp Storage for NFS (NAS) services. - Server virtualization with VMware.

Project Manager / Database Specialist

Catho

2007-9 - 2009-7 · 1 yr 11 mos

Sao Paulo

- Management of MySQL environment, including replication, backup, and performance tuning. - Implementation of clustering strategies for automatic database failover. - MySQL server upgrades, involving hardware replacement and Operating System (OS) migration from FreeBSD to RedHat. - Tuning of MySQL server parameters, along with OS and file system adjustments to improve performance and resolve technical issues. - Instrumentation of MySQL servers through resource usage data collection, enabling performance bottleneck detection and capacity planning. - Collaborative work with development teams (DevOps), assisting in the definition of new architectures to eliminate performance bottlenecks and improve database security.

Web Developer/MySQL Consultant/Instructor

Nérus

2000 - 2007 · 7 yrs

Belo Horizonte Area, Brazil

MySQL Consultant: - Upgrading DBA teams at client companies for the administration of MySQL-based environments. - Support for high-availability project implementation in MySQL, based on asynchronous data replication. - Consulting for parameter tuning, performance bottleneck detection, and improvement recommendations. - Remote support for client environments, addressing failure scenarios, errors, or outages affecting applications. - Assisting in the definition of system architectures based on MySQL. Development: - Analyst and developer for a POS (Point of Sale) system in Java, featuring communication with ECF (Fiscal Receipt Issuer) and EFT (Electronic Funds Transfer). - Software development team coordinator for hospital management systems using UML methodology (2002–2004). - Development of Web version BI in LAMP stack. - Development of electronic document management systems. - Web CRM system development. Instructor: - Courses on introduction, administration, and optimization of MySQL databases. - PHP programming language courses, covering both basic and advanced levels.