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SG

Sterling Green

Full-Stack Engineer

Engineering production-grade web platforms, custom software, and intelligent automation for businesses that depend on them.

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GumroadNext

Java, API

Enterprise Core Engine

Secure Spring Boot 3 foundation for self-hosted enterprise APIs and services.

Enterprise Core Engine Gumroad cover showing the Spring Boot API product listing artwork.

Challenge

Teams often waste time rebuilding standard API features like auth, migrations, and concurrency management for every new project.

Solution

A layered Java REST API built for enterprise-grade scalability. It features automatic PostgreSQL migrations via Flyway, JUnit 5 test coverage, and Docker readiness. The engine includes built-in license verification for Gumroad-distributed software, ensuring secure deployment.

Impact

A production-ready starting point for Java-based services; available as a source kit on Gumroad.

JavaSpring BootPostgreSQLDockerJUnit 5MapStruct

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