Milagros D.

Demo profile

Backend Developer - Node.js & PostgreSQL

Buenos Aires, Argentina·2+ years·Spanish / English

Bio

I build reliable backend services with clean code and good tests. 2 years of professional experience but I've been coding since high school. Computer Science student, work part-time. I focus on fundamentals - good naming, clear function boundaries, and comprehensive error handling. I'm still learning architecture patterns but I ship quality code. Very coachable, love code reviews, ask lots of questions.

Skills

Node.jsTypeScriptPostgreSQLREST APIsTesting

Work style

Detail-orientedAsks sharp questionsPragmatic

Portfolio (sample case studies)

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

Design System & Component Library

Sample

Built reusable component library with comprehensive documentation, accessibility compliance, and comprehensive testing.

TypeScriptTesting

SaaS Billing & Subscription System

Sample

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

Node.jsPostgreSQL

Authentication & Authorization Revamp

Sample

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

Node.jsPostgreSQL

High-volume Background Job Processor

Sample

Architected reliable job processing system handling 100K+ tasks daily with proper retry logic, dead letter queues, and observability.

Node.js