Open to opportunities

Giovanni Junior

@giovannijunior

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Senior software engineer specializing in React, Node.js and cloud-native, data-driven systems.

Brazil

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What I'm looking for

I seek senior engineering roles building cloud-native, data-driven web and mobile products using React/Node.js, with strong collaboration, measurable impact, and growth opportunities.

I am a senior software engineer with eight years of experience building scalable, cloud-native systems across e-commerce, healthcare, fintech and AI domains.

I design and implement front-end and back-end solutions using React, React Native, Node.js, Python and Java, and I have strong experience with event-driven microservices, real-time systems and data pipelines.

My work has delivered measurable business impact: inventory synchronization improving fulfillment accuracy by 25%, loyalty APIs increasing cross-platform engagement by 30%, and personalized recommendations raising retention by 15%.

I value collaboration with product and league/partner teams, pragmatic use of cloud services (AWS, Snowflake, SageMaker) and observability/CI practices to drive reliable, high-performing products.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Fanatics

Jan 2024 - Present (1 year 9 months)

Engineered a Java-based Real-Time Commerce Engine for post-championship merchandise drops and built event-driven Node.js/Kafka microservices to sync player data, cutting update latency by 80% and improving fulfillment accuracy by 25%.

Java Node.Js Kafka Microservices Snowflake AWS Sagemaker Event Driven Architecture API Design NodeJS

Senior Software Engineer

Parkland

Mar 2021 - Nov 2023 (2 years 8 months)

Architected a React/Node.js mobility platform supporting refueling, EV charging and retail services, implemented real-time EV charge point management and a React Native fleet feature that reduced logistics costs by 18%.

React React Native Node.Js API Design AWS Cloud Migration Real Time Systems Agile Authentication NodeJS

Full Stack Engineer

Prize Cart

Apr 2019 - Dec 2020 (1 year 8 months)

Developed Next.js merchant widgets and serverless Node.js APIs on AWS, boosting conversion by 22% and improving retention by 35% while implementing CI/CD and observability with CloudWatch and Sentry.

Next.js Node.Js AWS Lambda MongoDB Serverless CI CD Observability Frontend Development NodeJS

Software Engineer

Datametrica

Oct 2017 - Mar 2019 (1 year 5 months)

Delivered a Java/Angular analytics engine reducing reporting latency by 45% and developed AI-driven credit risk models that improved accuracy by 18%, while containerizing microservices to accelerate deployments by 50%.