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Erwin N. — Junior Backend Developer from Argentina

Erwin N.

Junior Backend Developer

Argentina Less than 1 year
Open to offersNew to Platform
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About

Erwin P. is an accomplished technology professional currently pursuing a B.S. in Information Systems Engineering at the Universidad de la Cuenca Del Plata, with an expected graduation in 2028. He is also working toward a Professional Certificate in Data Analytics from IBM via Coursera. As the Lead Backend Developer for TicketAR, Erwin developed a high-concurrency REST API with NestJS and Supabase for a World Cup ticketing platform, ensuring scalability through state, strategy, adapter, and repository patterns. His role involved integrating Mercado Pago webhooks for secure payment workflows and implementing role-based access control for enhanced data security. In a previous role with VendingMachine, Erwin served as both Backend and DevOps Developer, automating CI/CD pipelines with GitHub Actions and enhancing code integrity with comprehensive Jest unit tests. His technical arsenal includes languages like Java, Python, and TypeScript, with a strong emphasis on object-oriented programming and REST APIs.

Experience

  • Lead Backend Developer

    TicketAR · 2026 — 2026
    Created a modular, high-concurrency REST API for a ticketing platform for the 2026 World Cup, utilizing NestJS and Supabase (PostgreSQL). Integrated payment processing through Mercado Pago Webhooks and established a 15-minute reservation lock to prevent overbooking. Ensured data integrity with PostgreSQL triggers and role-based access control (RBAC) for securing administrative functions.

  • Backend & DevOps Developer

    VendingMachine · 2026 — 2026
    Designed a TypeScript backend focused on complex state transitions and domain logic, adhering to strict object-oriented programming (OOP) practices. Streamlined integration through automated CI/CD pipelines using GitHub Actions. Developed extensive Jest unit tests, isolating components to validate core business logic and prevent regressions.

Skills & Expertise

AI and Data ScienceData EngineerData AnalystBackend DeveloperCMS

Education

  • Bachelor of Science in Information Systems Engineering
    Universidad de la Cuenca Del Plata · — — 2028
  • Intermediate Degree in University Systems Analyst
    Universidad de la Cuenca Del Plata · — — 2027

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