Cristopher Cousiño

Santiago, Chile|+56 9 6151 2323|amarucouss@gmail.com
www.gateopenerz.com|github.com/GATEOPENERZ

Education

Online learning & personal projects2023 - Present
Software Development (Self-Taught)Santiago, Chile
  • Continuous learning through documentation, courses and real-world projects, with a strong emphasis on good practices and modern tooling.

Experience

Replicator PlatformSantiago, Chile
Lead Full Stack Engineer2024 - Present
Designed and built an enterprise-grade BI and Data Replication SaaS for the construction sector.
  • Architected a sophisticated hybrid data model in PostgreSQL 15+ using schema-per-tenant for massive ERP data sets and Row Level Security (RLS) for shared application metadata.
  • Developed a proprietary replication engine in Java 21 (Spring Boot) that automatically discovers schemas from legacy ERPs, applies 'Full' or 'Incremental' strategies, and utilizes Postgres binary streaming for rapid data ingestion.
  • Created a 'View Template' compiler that dynamically deploys standardized SQL views across hundreds of tenant schemas using Blue/Green deployment strategies.
  • Built a Single Page Application (SPA) using Next.js 16.1 and Tailwind CSS v4, implementing complex features like a Visual Query Builder, drag-and-drop dashboards, and S-Curve financial forecasting algorithms.
FreelanceSantiago, Chile
Full-Stack Developer2023 - 2024
Design and development of custom web solutions, from backend APIs to polished frontends, working closely with clients to understand their needs and ship real value.
  • Built responsive web applications using React and Next.js with clean, reusable components.
  • Designed and implemented RESTful APIs with a strong focus on security and maintainability.
  • Improved performance and user experience through careful profiling and optimization.
  • Communicated directly with clients, translating requirements into technical solutions and delivering on time.

Selected Projects

Replicator2025
  • High-performance SaaS platform designed for the construction industry to unify data from fragmented ERP systems (Viewpoint Vista, Spectrum) into a centralized analytics warehouse. (Java 21, Spring Boot, Next.js 16, PostgreSQL, AWS)
Paper Setup Plugin2025
  • Gradle plugin that automates the setup of PaperMC servers, reducing repetitive work and speeding up Minecraft plugin development. (Kotlin, Gradle, REST APIs, Build Automation)
SaaS Scheduling System2025
  • Enterprise-grade SaaS for service businesses featuring robust booking logic, multi-tenancy, and integrated Point of Sale. (Java 21, Spring Boot, Next.js 16, PostgreSQL, Tailwind 4)
Completionist2025
  • Gamified social media tracking platform that aggregates games, movies, and books into a single RPG-like experience to track your progress. (Go, Next.js 16, PostgreSQL, WebSockets, AWS)

Skills & Interests

Languages: Spanish (Native), English (Advanced)

Technical Skills: Java, Kotlin, Go, React, Next.js, TypeScript, PostgreSQL, Azure, Docker, Spring Boot

Interests: Open Source Contribution, System Architecture, High-Performance Computing