Team interview

Roberto worked as a Senior Software and AI Engineer and Cloud Architect at Wish from September 2022 to April 2024, focusing on designing architectural solutions based on product requirements and implementing generative machine learning models. He contributed to the merchant platform backend, supporting onboarding, identity verification (SPV, KYC), infractions, disputes, and risk processes. He utilized technologies like AWS, Azure, Golang, Python, NodeJS, Docker, Kubernetes, and LangChain to create efficient, scalable systems.

Highlights:

• Designed and implemented distributed systems with workers and APIs to integrate external partner systems, enhancing process efficiency.
• Utilized Docker and Kubernetes for containerization and orchestration of microservices in Golang and Python.
• Applied ChatGPT Prompt Engineering to optimize product title and summary generation, improving platform content quality.
• Contributed to an AI-driven recommendation system and Ranker, increasing user engagement by 35% and boosting revenue by 15%.

Roberto co-founded TechVirtual, a startup focused on delivering a Cloud ERP solution for health clinics and hospitals, where he served as CTO and Software Artificial Intelligence Engineer from 2014 to January 2017. He spearheaded the development of an innovative framework architecture, integrating AI, blockchain, and computer vision technologies to redefine healthcare management systems.

Highlights:

• Designed and implemented a robust ERP solution over Azure, featuring ASP.NET MVC, DevExpress, SQL Server, sharding, and Kafka to optimize hospital and clinic management.
• Developed cognitive computing software for electronic health records, utilizing DocumentDB, MongoDB, and a prototype encrypted Blockchain solution.
• Led disruptive initiatives like Blockchain Hyperledger for secure patient health record transactions and built imagery diagnosis models using Python for advanced medical imaging.
• Created a mobile app with Android and AI chatbot integration using AI.API and DialogFlow, enhancing patient engagement and data-driven decision-making.

Roberto contributed to the development and maintenance of Webmotors Integration CRM, leveraging NLP solutions and enhancing system functionality over a robust AWS architecture. His work focused on improving scalability and reliability while integrating advanced machine learning techniques.

Highlights:

• Implemented and maintained NLP solutions and information extraction models using Python and .NET MVC, enhancing CRM capabilities.
• Designed a robust monitoring and logging system, enabling proactive issue resolution and improving overall system reliability.
• Applied completion models and semantic search techniques for entity resolution, leveraging embeddings DB and RAG principles to enhance data extraction and processing.
• Optimized the architecture with AWS (SQS, Lambda, RDS, DynamoDB), SQL Server, and Kafka, achieving a more scalable and maintainable system.

Roberto designed and implemented AI/ML architectures for high-demand real-time predictive systems. His work spanned ETA APIs, recommendation systems, and leveraging GenAI with RAG to enhance product items and category recommendations. He utilized cutting-edge technologies like AWS, Azure, GCP, Python, Docker, and Kubernetes to create scalable and efficient solutions.

Highlights:

• Designed distributed, real-time systems for ETA prediction using Redis caching for high availability and low latency.
• Developed architectures with asynchronous workers, data digestion consumers, and transformers for high-throughput responses.
• Refined LLMs using Prompt Engineering to optimize product and category generation.
• Implemented AI-driven recommendation systems across verticals like restaurants, marketplaces, and groceries using LangChain and MongoDB.

He has designed innovative architecture solutions, leveraging ChatGPT and LangChain for code and architecture decisions. Roberto has provided support across multiple global flows, including legal merchant verification (SPV, KYC, Asia, EEA). He also contributed to the creation and optimization of customer-side risk checking through ML models and backend infrastructure.

Highlights:

• Designed solutions using ChatGPT and LangChain for architecture decisions.
• Supported global legal merchant verification flows across regions.
• Contributed to customer-side risk checking using ML models.
• Enhanced backend infrastructure to improve risk management.

Roberto led an engineering team to design cloud architectures and develop new modules, resulting in a 95%+ revenue increase through faster delivery. Roberto orchestrated the successful transition from a monolithic architecture to a microservices-based system, improving development agility and fault tolerance. Additionally, he implemented multi-tenancy support, including a dealer pricing model for the entire system.

Highlights:

• Led engineering team and developed cloud architecture, increasing revenue by 95%+.
• Orchestrated transition from monolithic architecture to microservices.
• Decomposed monolith into independent microservices, enhancing agility and fault tolerance.
• Implemented multi-tenancy support with a dealer pricing model.

Roberto focusing on developing and scaling the company's core software architecture during its rapid growth. He led the engineering team in transitioning to a microservices-based architecture while integrating technologies like Salesforce, DocuSign, and 3D visualization using React and NodeJS. His work contributed to the company’s high growth and operational efficiency.

Highlights:

• Led the design and implementation of cloud architecture, enabling the fast delivery of new modules and increasing partnerships, resulting in a 95%+ revenue boost.
• Spearheaded the migration from monolithic architecture to microservices, including key integrations like DocuSign and financial Lenders APIs.
• Developed and scaled a new financial system, ensuring reliability and efficiency for rapid business growth.
• Implemented multi-tenancy support across the system, optimizing the dealer pricing model for better scalability and customization.

Roberto has established a robust monitoring and logging system to enable proactive issue resolution, significantly enhancing system reliability and maintainability. By implementing advanced techniques, he improved the scalability of the system. He also leveraged a completion model for understanding email content and applied semantic text search for entity resolution, using embeddings DB based on RAG (Retrieval-Augmented Generation) principles to identify car models and related entities.

Highlights:

• Established a robust monitoring and logging system for proactive issue resolution.
• Enhanced system reliability and scalability through improved maintainability.
• Used completion model to understand email contents for better analysis.
• Applied semantic text search and embeddings DB for entity resolution using RAG principles.

Roberto served as a Senior Software and AI Engineer, Solutions Architect, and CTO Assistant Consultant at Finanzero, a Swedish financial hub start-up, from June 2018 to October 2019. He played a pivotal role in redefining backend APIs and enhancing the cloud infrastructure, ensuring scalability to support the company's rapid growth. Roberto also fostered a data-driven decision-making culture while leading innovative technical initiatives.

Highlights:

• Developed an IBM Watson Chat Bot using Golang for customer messaging, achieving a 96% automation rate and reducing human responses by 4%.
• Built a data lake with Python and Scala scripts for data processing, analysis, and decision-making report generation.
• Designed and implemented AI/ML models for data evaluation, analysis, and security checks, strengthening operational efficiency.
• Introduced a scalable frontend framework with AWS Elastic Beanstalk, leveraging Docker for containerization and improving load balancing.

Roberto worked as a Senior Lead Software Engineer at Hyundai Motor Brasil, where he created financial reports to assess program operating budgets and overall financial performance. He implemented cost efficiency metrics to optimize chart information display and developed metrics to measure success, identifying sales opportunities and market flaws.

Highlights:

• Created financial reports to assess program operating budgets and performance.
• Implemented cost efficiency metrics for chart information display.
• Developed metrics to measure success and uncover sales opportunities.
• Identified current market flaws to inform strategic decision-making.

Roberto, as CTO/Software/Artificial Intelligence Engineer at TechVirtual, led the development of innovative solutions:

• Defined the architecture and led the development of an ERP system for hospital and clinic management on Azure using ASP.MVC, DevExpress, SQL Server, and Kafka, incorporating sharding and Blobs for improved performance and scalability.
• Implemented cognitive computing software and electronic health records using DocumentDB, MongoDB, and a prototype encrypted Blockchain solution, along with an Android mobile app integrated with Google's DialogFlow for AI chatbot functionality.
• Led initiatives involving Blockchain Hyperledger for secure patient record transactions, advancing healthcare technology with a focus on decentralized systems.
• Developed imagery neural network models for medical diagnosis using Python and TensorFlow, contributing to the integration of AI into healthcare applications.

Roberto, as Senior Software Engineer at Itron, Inc., made significant contributions:

• Defined the architecture and developed a decentralized measurement system for Smart Grid electrical energy management, advancing smart metering technology.
• Led the development and deployment of an internal automated software for quality assurance in the R&D department, applying Scrum methodologies to optimize workflow.
• Designed and managed applications using a variety of technologies including C#, C++, Qt framework, and .NET, demonstrating versatility in software development.
• Contributed to the creation of systems that improved efficiency and performance in the energy sector, leveraging cutting-edge development practices.

Roberto, as CTO/Manager Software Engineer/Data Consultant, made impactful contributions:

• Consolidated multiple teams under structured operations, significantly increasing efficiency in software development and project management.
• Developed a vision for future product creation and design, aligning teams with strategic goals for long-term success.
• Established a robust monitoring and logging system, enabling proactive issue resolution and improving system reliability.
• Led projects that enhanced team collaboration and operational productivity, setting the foundation for scalable solutions.

Roberto served as a Senior Lead Software Engineer at GXSGXS from Feb 2006 to Jan 2007. He was responsible for local C++/Delphi and Java projects while collaborating with a global team of over 350 members on web development using XSLT for the WebCommerce application. He implemented Agile methodologies, integrating C++, Delphi, Java, C#, and Oracle database technologies to improve project workflows. Roberto also utilized data to assist the direction board in devising strategies for entering the South American market and recovering from an initial financial deficit.

Roberto worked as a Tech Lead Architect and Software Engineer at IBM from Jan 2001 to Jan 2006. He coordinated and designed architectural solutions for clients such as Kodak, Rede Globo, Porto Seguro, and AT&T, leading projects with a team of 20+ professionals. Roberto utilized a wide range of technologies, including C++, Java (J2EE, J2SE), Delphi, and SQL Server, and applied XP and RUP (Rational Unified Process) methodologies. He was instrumental in integrating diverse platforms, web development, and legacy systems.

Highlights:

• Coordinated projects for Kodak, Rede Globo, Porto Seguro, and AT&T
• Led a 20+ headcount team using XP and RUP methodologies
• Designed and implemented C++, Java (J2EE, J2SE), and Delphi solutions
• Integrated systems across Websphere, MQ-Series, Oracle, DB2, and SQL Server

Roberto worked as a Software Developer and Data Analyst at Hospital Vera Cruz from Jan 1996 to Jan 2001. He coordinated efforts in developing ERP solutions using Informix Database, VB, Delphi, and 4GL to meet internal demands. Roberto was also responsible for ETL processes and creating storytelling reports for the hospital's direction board.

Highlights:

• Developed ERP solutions using Informix Database, VB, Delphi, and 4GL
• Coordinated internal demand for software development
• Managed ETL processes for data integration
• Created storytelling reports for the hospital's direction board