SS

Selenia Sanchez

Available to hire

Full-stack engineer with 5+ years building and shipping production SaaS platforms end-to-end, specializing in multi-tenant architectures, role-based access control, and scalable workflows.

About

Full-stack engineer with 5+ years building and shipping production SaaS platforms end-to-end, specializing in multi-tenant architectures, role-based access control, and scalable workflows. Strong across React/Next.js and Node.js/PostgreSQL, owning features from database schema to UI and deployment.

I’ve architected a workflow platform used by 820+ users across 17 countries and 100+ enterprise clients, and I currently build multi-tenant appointment/CRM-style systems with timezone-aware scheduling, OAuth integrations, payment processing, and AI-powered analytics dashboards.

  • 4 years' experience
  • Joined July 2026

Languages

  • EnglishAdvanced
  • Spanish; CastilianFluent

Industry experience

  • Software & Internet
  • Education
  • Financial Services
  • Media & Entertainment
  • Professional Services
  • Healthcare
  • Retail
  • Other

More experts in Buenos Aires, Argentina

Work experience· 16 roles

Full-Stack Engineer (Multi-Tenant SaaS) · Aur aDash (Project)Jan 2026 – Present · 11 mos

Architected and built a multi-tenant SaaS platform (CRM, inventory, finance, and workflow automation) with RBAC and strict per-tenant data isolation. Engineered conflict-aware, timezone-aware booking/scheduling logic across tenants. Integrated AI natural-language analytics with real-time dashboards, two-way Google Calendar OAuth sync, MercadoPago payments, and bulk Excel/CSV imports. Owned the full stack and deployment pipeline across Render, Vercel, and Neon.

Full-Stack Engineer (Multitenant SaaS) · AuraDash — Multi-Tenant Appointment & Business-Management SaaSJan 2026 – Present · 11 mos

Architected and built a multi-tenant SaaS platform (CRM, inventory, finance, workflow automation) with RBAC and strict per-tenant data isolation. Engineered conflict-aware, time zone-aware booking engines handling complex scheduling logic across tenants. Integrated AI natural-language analytics with real-time dashboards, two-way Google Calendar OAuth synchronization, MercadoPago payments, and bulk Excel/CSV imports. Owned full-stack development and deployment pipeline across Render, Vercel, and Neon.

Full Stack Engineer · Auradash — Multi-Tenant Appointment & Business-Management SaaSJan 2026 – Present · 11 mos

Architected and built a multi-tenant SaaS (CRM, inventory, finance, and workflow automation) with RBAC and full per-tenant data isolation. Engineered conflict-aware, timezone-aware booking logic across tenants. Integrated AI natural-language analytics with real-time dashboards, two-way Google Calendar OAuth sync, MercadoPago payments, and bulk Excel/CSV import. Owned the full-stack and deployment pipeline across Render, Vercel, and Neon.

Developer (Dog-Walking Marketplace) · DogCo (Project)Oct 2025 – Present · 1 yr 2 mos
Mobile Developer (Multi-Vendor Marketplace) · Más Repuestos (Project)Oct 2025 – Mar 2026 · 6 mos
Developer (Dog-walking marketplace) · DogCo — Dog-Walking MarketplaceOct 2025 – Present · 1 yr 2 mos
Developer (Multi-vendor marketplace app) · Más Repuestos — Multi-Vendor Marketplace (Mobile)Oct 2025 – Mar 2026 · 6 mos
Developer · DogCo — Dog-Walking MarketplaceOct 2025 – Present · 1 yr 2 mos

Education· 9

Computer Science & Programming (studies) · Universidad Tecnológica Nacional2024 – 2026
Computer Science & Programming (studies) · Da Vinci Instituto2023 – 2026
Computer Science & Programming (studies) · Teclab Instituto Técnico Superior2019 – 2021
Computer Science & Programming study (combined) · Universidad Tecnológica Nacional2024

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