Senior Backend Developer - Next.js / Serverless

Zarego
📍 Buenos Aires, Argentina, Argentina 💼 Full-time 🕒 Posted February 20, 2026

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% rem...

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Job Details

  • Location Buenos Aires, Argentina
  • Job Type Full-time
  • Category other-general
  • Posted Date February 20, 2026
  • Application Deadline April 01, 2026