Celeste V.

Demo profile

Backend Developer - Databases & Migrations

Mendoza, Argentina·2+ years·Spanish / English

Bio

I design database schemas and write safe migrations. 2 years working primarily with PostgreSQL and Prisma. I think about data integrity, foreign keys, and query performance. Computer Science student who got really into databases. I write reversible migrations, test schema changes locally, and understand the difference between VARCHAR and TEXT. Detail-oriented and methodical in my work.

Skills

Node.jsTypeScriptPostgreSQLPrismaREST APIs

Work style

Detail-orientedSystems thinkerCalm communicator

Portfolio (sample case studies)

SaaS Billing & Subscription System

Sample

Designed and implemented complete subscription management with Stripe. Handled proration, dunning, usage tracking, and admin billing tools.

Node.jsPostgreSQL

Real-time Collaboration Dashboard

Sample

Built multi-user dashboard with live updates using WebSockets and optimistic UI. Handled conflict resolution and implemented robust offline-first architecture.

Node.js

Authentication & Authorization Revamp

Sample

Rebuilt auth system with SSO, MFA, and granular permissions. Implemented secure session management and audit logging.

Node.jsPostgreSQL

Admin Panel for Multi-tenant Platform

Sample

Created comprehensive admin interface with tenant management, usage analytics, and bulk operations. Implemented role-based access control.

Node.jsPostgreSQL