CareerPlan

Senior Fullstack Engineer

ArgentinaRemoteFull-time2026-10-15 → 2026-11-08

Core

Build and own end-to-end full-stack systems (frontend, backend, infrastructure) for a multi-agent AI platform serving consumer brands.

Role type

Senior Fullstack Engineer (AI/LLM focus)

Builds

A connected multi-agent stack for customer experience (CX) and sales

Domain

SaaS / AI / Customer Experience

Deliverable

production ML models

Required skills

Node.js, React, TypeScript, Express, LLM integration, API performance, microservices, AWS infrastructure

Preferred skills

AWS (Fargate, Lambda, EC2, SQS), PostgreSQL, Redis, CI/CD pipelines, Next.js, Infrastructure as Code (CDK, Terraform), Python, Event-driven architecture

Technologies

Node.js, React, TypeScript, Express, AWS, PostgreSQL, Redis, Next.js, CDK, Terraform

Responsibilities

Own features and systems across the full stack from problem definition to production; Partner with product to break down ambiguous scope and ship iterative releases; Make architectural and design decisions; Integrate cutting-edge language models into enterprise workflows; Solve hard engineering problems regarding API performance and scaling; Maintain and improve AWS infrastructure with a DevOps mindset

Seniority

Senior, hands-on IC