Lucas – React, Node.js, Typescript

A multi-sided marketplace designed to guide homeowners (“Principals”) through complex renovation planning and transactions. The platform reduces information asymmetry in the home improvement industry by helping users objectively scope projects, evaluate and hire trusted service providers, and manage communication, inspections, and financial transactions in a structured and transparent way.

• Partnered directly with the CTO from project inception to define system architecture and delivery strategy
• Designed and implemented the initial onboarding experience, including a multi-step wizard guiding users through complex project setup
• Built admin interfaces and reusable design components supporting project management, verification, and operational workflows
• Led architectural decisions around Payload CMS usage versus custom Next.js routes and components
• Implemented and validated Clean Architecture principles to support future scalability and mobile-native adoption
• Designed event-driven workflows for async operations such as matching, payments, notifications, and fraud-related checks
• Integrated third-party services (payments, auth, storage) with a strong focus on security, access control, and performance
• Established automated testing strategy using Vitest and Playwright for QA, UAT, and regression coverage
• Provided infrastructure and deployment guidance across Vercel and GCP, including CI/CD, blue-green deployments, and operational runbooks
• Leveraged AI-assisted workflows (Claude API) for architecture reviews, code analysis, and accelerating development and testing cycles

A touch-first Progressive Web Application built for on-site kiosks at the National Museum of Mathematics. The platform enables visitors to purchase tickets, manage memberships, and supports staff with administrative and operational workflows optimized for high-traffic environments.

• Developed a kiosk-optimized PWA with a focus on performance and usability
• Designed backend APIs integrating Stripe and CRM platforms
• Implemented secure and resilient payment and membership workflows
• Collaborated closely with stakeholders to align technical solutions with operational needs
• Used AI tools to validate architecture decisions and improve test coverage

An MVP platform designed to support risk analysis and security investigations related to major social media platforms. The product enables analysts to collect, analyze, and export sensitive data while operating under strict security and compliance requirements.

• Led development of a secure MVP platform from concept to delivery
• Designed frontend and backend workflows for sensitive data handling
• Implemented scalable data collection and export mechanisms
• Balanced strict security constraints with analytical usability
• Leveraged AI tools for code reviews and test generation in a privacy-sensitive environment

Development of a new version of the company's core frontend application aimed at enhancing user experience and improving overall performance. The project involved integrating Backend-for-Frontend (BFF) layers using Node.js with existing Data APIs. As part of a critical AI-driven supply chain system, the application plays a key role in data processing and decision-making, meeting high expectations due to its significant impact on business operations.

• Created a new front-end architecture to modernize the application;
• Migrated 80% of clients to the new system within six months;
• Developed and implemented CI/CD pipelines for build and deployment processes;
• Redesigned and optimized API integrations for improved efficiency;
• Wrote unit and integration tests using Playwright to ensure code quality and reliability;
• Enhanced AI utilization to increase system capabilities and performance.

The project focuses on accelerating the company’s digital transformation by developing multiple platforms dedicated to scientific research data analysis. It centers around creating a middleware ecosystem designed to consume data from APIs provided by the data team and distribute it efficiently to various products within the organization. This ecosystem enables seamless data integration, streamlining operations, and supporting advanced analysis across platforms.

• Created frontend and backend architecture to enhance system scalability and performance;
• Developed a Backend-for-Frontend (BFF) architecture to optimize data retrieval and improve API performance;
• Built a design system library to standardize UI components and ensure consistency across the application;
• Wrote unit tests and integration tests to maintain code quality and ensure system reliability.

It is a comprehensive platform that simplifies the process of managing home construction and renovations. It offers an all-in-one solution that integrates project planning, contractor coordination, and budgeting tools. It ensures transparency and efficiency by leveraging technology to provide real-time updates, cost tracking, and a seamless client experience. Its innovative software streamlines complex processes, making homebuilding and remodeling stress-free for homeowners.

• Created an OCR solution to read bill files and automatically populate data into the platform;
• Developed billing features to enhance and expand the functionality of the existing project;
• Built an event-driven integration with SAGE ERP to improve system connectivity and data flow;
• Redesigned the bill payment authorization flow to optimize efficiency and user experience.
• Worked on the catalog, inventory, features using Payload CMS to new self service home template solution.

It is a leading technology company specializing in accelerating digital transformation for businesses. This platform simplifies the creation and management of cloud infrastructure on AWS (Amazon Web Services). Automating provisioning, monitoring, and scaling enables companies to build robust, secure, and scalable cloud environments with ease. The platform integrates seamlessly with AWS tools, ensuring efficient resource utilization, compliance, and cost optimization, empowering organizations to focus on innovation while it handles the complexities of cloud infrastructure.

• Created the front-end architecture to ensure scalability and maintainability;
• Developed a design system library to standardize UI components across projects;
• Established the communication architecture for seamless interaction between micro-frontends;
• Wrote unit and integration tests to ensure code quality and reliability;
• Integrated automation pipelines using AWS and Terraform to streamline deployment and infrastructure management.

A leading Brazilian technology company specializing in supply chain management solutions, synchronizing operations for retailers, manufacturers, and distributors worldwide. As part of the centralized software architect team, I focused on backend development for innovative Minimum Viable Products (MVPs), including a cutting-edge demand forecasting tool that leverages real-time data and AI to predict consumer trends with unprecedented accuracy.

• Developed a set of lightweight, reusable middlewares to handle authentication, logging, and data transformation, adopted by 3+ product teams
• Authored a comprehensive guide for teams transitioning to microservices, reducing performance issues and speeding up adoption.
• Created an MVP for an event-driven notification system, improving real-time inventory alerts.