Andre – AWS, React, Node.js

A marketplace for buying and selling domains with ease. Users can manage thousands of domains with top-notch customizations for pricing and appearance. The platform also allows users to manage leads and negotiate directly with their clients or assign a broker to do it at a fee. Multiple dashboards have been developed to serve sellers, brokers, and users.

• Rebuilt the checkout system, introducing sales funneling, A/B tests, and new designs;
• Delivered successfully mission-critical deployments that target +25.000 domains;
• Developed a complex domain search SQL query, allowing the search of highly customizable filters and sorts;
• Built an infinite scroll table using TanStack Table, which allows thousands of items to be fetched with ease. Highly customizable, auto-sizable, mobile-friendly, sortable, and with complex selection mechanisms;
• Contributed massively to code quality improvements, with multiple refactors, bug fixing, revamps, increasing type safety, and adding monitoring.
• Took ownership of many features, dealing directly with the client;
• Implemented the redesigned application.

A business-focused time-tracking management tool. It allows users to invite employees, set their billable or internal rates, set availability, set group entries per client, and export what they should charge the client and employee payment during a period.

• Took ownership initially as an individual contributor and successfully delivered an MVP within a thigh deadline, which started being used internally, cutting 50% of the company's fixed costs;
• Led a team of 3 developers (two junior, one mid-level), achieving precious deliveries while having the team part-time;
• Denormalized a multi-currency NoSQL data structure, achieving a 70% cost reduction and a 50% increase in performance;
• Performed many pull request reviews.

A software solution designed specifically for piercers, enabling seamless client and booking management. It allows piercers to take deposits, organize their agendas with highly customizable configurations, and optimize workflows to enhance efficiency and the client experience.

• Created the front-end architecture, authentication, and integrations with the backend and components using the Next.js app router;
• Built a calendar with multiple views that is used as the agenda for the piercers;
• Architectured a drawer system that handled more than 30 drawers in a single page. The system is used as the pattern throughout the application while maintaining a top-notch DX;
• Implemented a pixel-perfect application using shading while following the industry's best standards.

A venture studio, a fractional CTO and Technology partner specializing in AI and B2B SaaS.

• Contributed to multiple projects across diverse configurations, including as an individual contributor, in staff augmentation roles, and as a lead overseeing an additional developer;
• Developed many back-ends and front-ends, ranging from finance to healthcare;
• Worked with a data scientist to learn high-valuable information through an FHIR resource integration for patient data and building a dashboard;
• Spearheaded code improvement initiatives across the whole company.

A no-code platform for creating highly customizable applications, offering features like data fetching, theming, and GraphQL API deployment with data source integration and built-in deployment capabilities.

• Led the development of the entire application, serving as the primary developer responsible for the codebase;
• Built advanced front-end features, including a no-code editor with over 30 highly customizable components, supporting theming, GraphQL introspection-based data-fetching, and auto-completion capabilities derived from the introspection schema;
• Re-engineered the backend deployer to streamline deployments of AWS resources, including AppSync, Lambda, and DynamoDB, using AWS CDK;
• Designed and provisioned the application infrastructure on AWS using Terraform, including creating and managing GraphQL schemas;
• Implemented all of the backend management routes using Next.js API routes.