Lisandro T.

Demo profile

Full-stack Developer - API Integration & Frontend

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

Bio

I connect frontends to backends and make them work together smoothly. 2 years building features that span the full stack. I handle API integration, state management, and UI implementation. Career changer from graphic design, which gives me good visual sense. I write clean code, test my features, and ship incrementally. Collaborative team player who asks for help when stuck.

Skills

TypeScriptReactNext.jsNode.jsREST APIs

Work style

PragmaticCalm communicatorFast iteration

Portfolio (sample case studies)

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

SaaS Billing & Subscription System

Sample

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

Node.js

Mobile-first PWA for Food Delivery

Sample

Built progressive web app optimized for mobile with offline support, push notifications, and location tracking.

ReactNext.js

Customer Support Ticketing System

Sample

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

TypeScriptReact

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.

ReactTypeScript