Santiago P.

Demo profile

Backend Engineer - APIs & Data Modeling

La Plata, Argentina·8+ years·Spanish / English

Bio

I design APIs that frontend developers thank me for. 8 years building REST and GraphQL services with a focus on clear contracts and predictable behavior. I think in database schemas and relationship diagrams. My background is in systems engineering but I learned most of my craft from code reviews and production incidents. Work style: structured, writes ADRs for big decisions, prefers Postgres over MongoDB unless you convince me otherwise.

Skills

Node.jsTypeScriptPostgreSQLGraphQLREST APIsPrismaDockerTesting

Work style

Systems thinkerDetail-orientedAsks sharp questionsGreat documentation

Portfolio (sample case studies)

CI/CD Pipeline & Infrastructure Automation

Sample

Set up complete CI/CD pipeline with automated testing, staging environments, and zero-downtime deployments. Reduced deploy time from 2 hours to 8 minutes.

Docker

Authentication & Authorization Revamp

Sample

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

Node.jsPostgreSQL

Customer Support Ticketing System

Sample

Built full-featured support platform with ticket routing, SLA tracking, canned responses, and customer portal.

TypeScriptPostgreSQL

Analytics Dashboard for B2B SaaS

Sample

Created complex reporting dashboard with custom date ranges, exports, and drill-down capabilities. Optimized queries to handle millions of events.

PostgreSQLTypeScript

API Gateway & Microservices Migration

Sample

Led migration from monolith to microservices architecture. Implemented API gateway, service discovery, and comprehensive observability.

DockerGraphQL

SaaS Billing & Subscription System

Sample

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

Node.jsPostgreSQL