Senior Backend Developer

Zarego
Full-time Buenos Aires, Buenos Aires C.F. Other-General
Posted:
March 03, 2026
Location:
Buenos Aires, Buenos Aires C.F., 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 API routes and Vercel serverless functions.
  • Experience working with PostgreSQL (ideally Vercel Neon).
  • Experience integrating authentication solutions such as Auth0 or similar.
  • Familiarity with (including: Schema design, Custom modules, API integration)
  • Experience with Jest for API and integration testing.
  • Advanced English (C1/C2)
  • Experience working in agile teams with code reviews, CI/CD pipelines, and close collaboration with QA, PMs, stakeholders, etc.

Nice to have: 

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

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Job Overview

Job Type: Full-time
Location: Buenos Aires, Argentina
Posted: March 03, 2026
Deadline: April 12, 2026