Senior AI-Native Software Engineer — Remote

Xbow; Municipio de Rincón de los Sauces; Remote; ARS 184,482,000 - 276,723,000; Full time

Benefits offered by this job

Contractor agreement with payment in $

100% remote work

Argentina's public holidays

English classes

Referral program

Access to learning platforms

Job summary

Darwoft is seeking a Senior/Staff Software Engineer to join a LATAM-focused, AI-native development team. You’ll work on a modern transaction/AI-enabled SaaS platform, navigating a large codebase, shaping architecture, and driving velocity with AI coding agents.

The role emphasizes production software, strong engineering fundamentals, and ownership in a remote, contractor setup. You’ll collaborate with product leadership to deliver scalable solutions.

Qualifications

• Proven experience building and operating production software systems.
• Strong fundamentals in architecture, design, debugging, testing, and maintainability.
• Experience with large or complex existing codebases.

Responsibilities

• Navigate, understand, and evolve a large production codebase.
• Design and implement new product capabilities across a complex SaaS platform.
• Make pragmatic architectural and system design decisions as the product scales.
• Identify technical debt and reliability issues, and improve architecture.
• Use Claude Code, Codex, Cursor, Copilot, or similar AI agents extensively.
• Build and evolve backend services, APIs, data models, and workflows.
• Strengthen automated testing, observability, and production readiness.
• Improve development workflows, tooling, and engineering practices.

Skills

Production software systems

Architecture & system design

Large/complex codebases

Backend or full-stack engineering

Web apps & SaaS

APIs & distributed systems

Relational databases

CI/CD & cloud operations

AI-native development mindset

Independent ownership

Tools

Claude Code

OpenAI Codex

Cursor

GitHub Copilot

Windsurf

Job description

Darwoft is seeking a Senior/Staff Software Engineer to join a LATAM-focused, AI-native development team. You’ll work on a modern transaction/AI-enabled SaaS platform, navigating a large codebase, shaping architecture, and driving velocity with AI coding agents.

The role emphasizes production software, strong engineering fundamentals, and ownership in a remote, contractor setup. You’ll collaborate with product leadership to deliver scalable solutions.