Senior Full Stack Engineer

Chelsea Labs

Full-time Mar del Plata, Buenos Aires Other-General

Posted:

February 23, 2026

Location:

Mar del Plata, Buenos Aires, Argentina

Job Description

 We're Hiring  
Position: Remote Senior Full Stack Software Engineer (5+ years experience) 
Frontend: React 
Backend:  (NestJS)/ PostgreSQL (Prisma) 
English Level: Conversational (C1) 
 Salary: Paid in USD 
 Argentina, Brazil, Chile, Uruguay and Mexico 
 Core working hours: 9AM-5PM EST 
 Client: Chelsea Labs is a software development shop based in New York City. Chelsea Labs has a range of clients across AI, fintech and E-commerce. 
This Senior Full Stack Engineer Role will be to work on  

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Job Overview

Job Type: Full-time

Location: Mar del Plata, Argentina

Posted: February 23, 2026

Deadline: April 04, 2026