David Barreto Ferreira

Leading a backend engineering team responsible for core components of the thinkorswim trading platform, one of the most widely used platforms in retail trading.

• Leading a team of 4–6 engineers across distributed international locations
• Designing and maintaining mission-critical trading infrastructure with high availability requirements
• Backend development in Java 17 with Oracle DB and distributed messaging systems
• Driving architecture decisions, code quality standards and engineering processes
• Contributing to production support and incident response for financial-grade systems

Backend engineering at one of Europe's largest fintech companies.

• Developed and maintained backend services in a high-scale microservices environment
• Worked on financial products serving millions of users across Europe

Backend development for a global corporate wellness platform.

• Built and maintained backend services supporting a global network of gyms and wellness partners
• Worked in a distributed team on high-availability microservices

Software consultant embedded at BNP Paribas / SLIB developing risk management web applications and services.

• Developed web applications and backend services for risk management systems at BNP Paribas/SLIB
• Worked within a regulated financial environment with strict compliance and quality requirements

Backend development for the Brazilian stock exchange, focusing on OTC (over-the-counter) systems and market infrastructure.

• Designed and implemented middleware and system integrations for the OTC department
• Worked on NoMe (Novo Mercado), the insurance registration system and the Cetip21 internal framework
• Automated software infrastructure maintenance across critical financial systems
• Operated in a highly regulated, high-reliability environment processing billions in daily transactions

Technical leadership for software projects in the oil & gas and financial sectors.

• Led technical proposals, resource planning and architecture design for client projects
• Managed project delivery, requirements analysis and R&D initiatives
• Modelled software architecture for distributed enterprise systems
• Bridged technical and business stakeholders across complex multi-team projects

Full-stack backend development for enterprise clients in oil & gas, offshore and financial sectors.

• Built enterprise applications using Java EE, EJB, JMS, JPA, Hibernate and Apache Camel
• Developed integrations using SOAP/REST web services, XML/XPath/XSLT and Apache CXF
• Worked with Oracle Database, PL/SQL, MySQL and application servers including WildFly and Oracle WebLogic
• Used Oracle Coherence for distributed caching in high-availability deployments
• Contributed to offshore and oil & gas techno-scientific applications using C/C++ and Borland C++ Builder

Taught undergraduate programming courses at UERJ.

• Taught Object-Oriented Programming with Java for Computer Science undergraduates
• Taught Introduction to Computing and Programming for Engineering students

Research in real-time, distributed and ubiquitous computing systems at UFF's Tempo Laboratory.

• Researched distributed systems, sensor networks, mobile and ubiquitous computing
• Developed middleware and applications for smart spaces and context-aware environments
• Work formed the basis of MSc thesis on pervasive computing (SmartAndroid platform)

Software development internship focused on techno-scientific applications for offshore companies.

• Developed and maintained applications for offshore and oil & gas clients
• Worked primarily in C/C++ and Borland C++ Builder

Networks and Parallel and Distributed Systems · Fluminense Federal University

Computer Science · Rio de Janeiro State University