Ricardo – React, Typescript, AWS

A multi-tenant SaaS platform for agricultural farm management that centralizes farm information and integrates with machinery platforms, processors, and public services to streamline operations and data management.

• Collaboratively defined project priorities through stakeholder engagement and strategic planning;
• Refactored and modernized the legacy codebase to improve maintainability and reduce technical debt;
• Architected and oversaw integration strategy for third-party services, ensuring seamless system compatibility;
• Optimized application performance, delivering measurable improvements across critical features;
• Implemented comprehensive monitoring and alerting using Datadog for proactive issue detection;
• Diagnosed and resolved complex production issues, minimizing downtime and user impact;
• Developed robust test coverage with Jest (unit/integration) and Cypress (e2e) testing frameworks;
• Maintained high code quality standards through thorough code reviews and architectural guidance;
• Successfully integrated multiple external providers, expanding platform capabilities.

A virtual guest check-in platform enabling contactless arrival through mobile, web, and kiosk interfaces with ID verification and digital key issuance. Integrates with hotel systems to reduce operational costs while enhancing guest experience and generating ancillary revenue.

• Collaborated with stakeholders to define project priorities and align the technical roadmap;
• Refactored and modernized the legacy codebase, improving maintainability and performance;
• Architected and implemented key technical improvements with measurable impact;
• Made architectural decisions for the survey microservice, ensuring scalability and reliability;
• Optimized application performance across critical features, reducing latency and improving UX;
• Implemented comprehensive monitoring using Sentry and Mixpanel for proactive issue detection;
• Diagnosed and resolved complex production issues, minimizing user impact;
• Developed a comprehensive test suite with unit, integration, and e2e test coverage;
• Maintained high code standards through thorough code reviews and architectural guidance;
• Mentored junior developers, fostering technical growth and best practices.

A blockchain-based digital horse racing game where players buy, breed, and race NFT horses to compete and earn cryptocurrency rewards. Combines skill-based gameplay with play-to-earn mechanics on a decentralized platform.

• Implemented robust cryptocurrency wallet integration supporting multiple blockchain networks;
• Optimized RPC resource management and reduced network overhead for efficient blockchain interactions;
• Refactored and modernized legacy codebase, improving code maintainability and system reliability;
• Optimized application performance across critical features, delivering measurable improvements;
• Diagnosed and resolved complex production issues, minimizing downtime and user impact;
• Developed comprehensive test coverage with unit, integration, and e2e testing frameworks;
• Maintained high code quality standards through thorough code reviews and architectural guidance.

Cloud infrastructure transformation project that optimized AWS architecture alignment with the Well-Architected Framework. Enhanced system performance, security posture, reliability, and operational efficiency for a large-scale healthcare organization.

• Collaborated with cross-functional stakeholders to define project priorities and align the technical roadmap;
• Successfully recovered and delivered overdue initiatives, resolving critical project delays;
• Refactored and modernized legacy codebase, improving code maintainability and system reliability;
• Architected and implemented strategic technical improvements with measurable business impact;
• Owned frontend architecture decisions, ensuring scalability, performance, and user experience excellence;
• Optimized application performance and security across critical features, reducing vulnerabilities and latency;
• Diagnosed and resolved complex production issues, minimizing downtime and user impact;
• Developed comprehensive test coverage with unit, integration, and e2e testing frameworks;
• Maintained high code quality standards through thorough code reviews and architectural guidance;
• Mentored junior developers and engineers.

A global leader in advanced technologies for defence, aerospace, cyber and digital security sectors. Specialized in developing mission-critical systems including satellite communications, cybersecurity solutions, and digital identity platforms that protect sensitive data and infrastructure for governments and enterprises worldwide.

• Collaborated with cross-functional stakeholders to define project priorities and align technical strategy;
• Architected and implemented a comprehensive micro-frontend architecture with clear technical specifications;
• Optimized application performance across critical features, delivering measurable improvements;
• Orchestrated micro-frontend deployment pipeline, ensuring seamless integration and scalability;
• Designed and delivered a secure micro-frontend authentication layer, enhancing system security and user access management;
• Diagnosed and resolved complex production issues, minimizing downtime and user impact;
• Developed comprehensive test coverage with unit, integration, and e2e testing frameworks;
• Maintained high code quality standards through thorough code reviews and architectural guidance;
• Mentored junior developers.

Using Node, React, Micro-services and WebSocket Ricardo planed and developed an Event-driven Linux-based Digital Signage marketing system through micro-services architecture. Using HTML 5, PHP 7, Mikrotik Script, the system released access to Private Wifi through login with social networks. Another part of the project was an event-drive artificial intelligence specialized in indoor marketing for personalization of digital content.

• Created front-end and back-end architecture;
• Implemented advanced MQTT and WebSocket communication;
• Built front-end components library;
• Debugged and resolved the application issues;
• Led the development and supported the team;
• Dealt with stakeholders and clients.

Major contributions:

• Dynamic management of content playlists through ordering and prioritization by Fuzzy Logic, based on the store's own characteristics;
• Storage and display of multiple data formats (Videos, Images, Jquery Scripts, Angular Scripts and HTML);
• Dynamic content buffering;
• Analytics, remote monitoring and control of equipment operation with error alerts;
• Identification of MAC address of the equipment that logs in to the wifi, using Mikrotik Script;
• Integration with social networks for client authentication through Google API, Facebook and Twitter;
• Dynamic management of playlist ads through sorting and prioritization by Fuzzy Logic, based on the user's personal characteristics;
• Tool to capture details of the interaction with the platform to map personal preferences of each client and build knowledge base.
• Dynamic management of multiple parameters of each commercial establishment through ordering and prioritization by Fuzzy Logic;
• Trigger request for modification of digital content based on the evolution and analysis of parameter values.