Giovanni Junior

Sr. Software Engineer

Fanatics

Jan 2024 - Current (2 years 4 months)

Orchestrated the Real-Time Commerce Engine in Java powering post-championship and player-trade merchandise drops. Introduced event-driven microservices (Node.js, Python, Kafka) to sync player data from league API, cutting update latency by 80%. Constructed inventory synchronization system using React.js, linking Fanatics' manufacturing with e-commerce pipelines, improving fulfillment accuracy by 25%. Implemented entire end-to-end workflow and deployment of the MVP of queflic app which is purposed to be competitive to social networks like Instagram, Tiktok by integrating external services like Spotify, Google Maps, firebase with react native. Developed and integrated several Loyalty APIs connecting Fanatics.com, Topps, and Fanatics Sportsboo

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Sr. Software Engineer

Parkland

Mar 2021 - Nov 2023 (2 years 9 months)

Architected a React/Node.js platform powering multi-service mobility operations (refueling, EV charging, retail), enabling 24/7 real-time fleet access across multiple regions. Enabled real-time EV charge point access and management across multiple regions. Crafted React Native fleet management tools allowing customers to track fuel consumption, reducing logistics costs by 18%. Implemented secure MVC portals for B2B clients to manage fleet accounts, invoices, charge sessions, and refueling analytics. Established an API-driven authentication and payment system for B2B clients, reducing transaction friction by 40%. Formulated Python-based microservices for AI inference and healthcare automation, improving data processing efficiency by 45% whil

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Full Stack Engineer

PrizeCart

Apr 2019 - Dec 2020 (1 year 9 months)

Produced Next.js pages for merchant widgets and public prize portals, boosting conversion rates by 22%. Launched serverless Node.js APIs to manage prize generation, redemption logic, and click-based billing events using AWS Lambda and MongoDB. Integrated Shopify APIs for automated installation, merchant authentication, and order data sync. Partnered with design teams to enhance "Reveal Prize" user flow, improving retention by 35%. Deployed production builds with CI/CD pipelines on AWS and implemented observability using CloudWatch and Sentry. Optimized PostgreSQL schemas and queries for prize redemption and billing workflows, reducing report load times by 35%.

Software Engineer

Datamétrica

Oct 2017 - Mar 2019 (1 year 6 months)

Delivered advanced analytics engine with Java/Angular for finance, retail, and clients in Brazil and Latin America, reducing reporting latency by 45%. Enhanced credit risk assessment systems with predictive models, improving accuracy by 18% for financial clients. Engineered Python data pipelines and ML models for credit-risk scoring, improving prediction accuracy by 18%. Designed and implemented a cloud-based customer portal on React/Redux. Developed AI-powered customer insights dashboards using React + D3.js.

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