Senior Backend Developer - Next.js / Serverless (remote position)

Zarego
Full-time Buenos Aires, Buenos Aires Other-General
Posted:
February 22, 2026
Location:
Buenos Aires, Buenos Aires, Argentina

Job Description

At Zarego , we develop custom software solutions using modern technologies. If you'd like to join our team and work on challenging technical projects, keep reading!

Requirements:

  • Seniority: Senior (5+ years)
  • Proficiency in TypeScript.
  • Strong experience with Next.js API routes and Vercel serverless functions.
  • Experience working with PostgreSQL (ideally Vercel Neon).
  • Experience integrating authentication solutions such as Auth0 or similar.
  • Familiarity with Sanity.io (including: Schema design, Custom modules, API integration)
  • Experience with Jest for API and integration testing.
  • Advanced English (C1/C2)

Nice to have: 

  • Familiarity with recommendation systems.
  • Knowledge of CRON job scheduling.
  • Exposure to analytics pipeline implementation.

(This is a 100% remote ...

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Job Overview

Job Type: Full-time
Location: Buenos Aires, Argentina
Posted: February 22, 2026
Deadline: April 03, 2026