Senior AI-Native Software Engineer — Remote, High Impact

The Flex; Rosario; Remote; ARS 181,747,000 - 242,329,000; Full time

Benefits offered by this job

Contractor agreement with USD payment

100% remote work

Argentina holidays

English classes

Referral program

Learning platforms

Job summary

Darwoft is hiring a Senior / Staff Software Engineer for an AI-native, Claude Code/Codex-driven development approach. You will navigate a large codebase, design scalable features, and lead architectural decisions in a remote LATAM setup.

Join a team delivering a modern transaction platform with AI-augmented engineering, focusing on reliability, tests, and production readiness. Remote-first culture and collaboration with international teams are emphasized.

Qualifications

• Proven production software experience and strong fundamentals.
• Ability to navigate large codebases and make architectural decisions.
• Experience with backend or full-stack development for SaaS/web apps.

Responsibilities

• Navigate and evolve a large production codebase.
• Design and implement new capabilities across a complex SaaS platform.
• Make architectural decisions as product scales.
• Identify debt, risks and reliability issues for improvement.
• Use AI coding agents extensively across the lifecycle.
• Build/extend backend services, APIs, data models, workflows.
• Contribute across the stack and improve testing, observability, and deployment.

Skills

Production software

Architecture & design

Large codebases

Backend / full-stack

APIs & distributed systems

Cloud, CI/CD

Tools

Claude Code

OpenAI Codex

Cursor

GitHub Copilot

Windsurf

Job description

Darwoft is hiring a Senior / Staff Software Engineer for an AI-native, Claude Code/Codex-driven development approach. You will navigate a large codebase, design scalable features, and lead architectural decisions in a remote LATAM setup.

Join a team delivering a modern transaction platform with AI-augmented engineering, focusing on reliability, tests, and production readiness. Remote-first culture and collaboration with international teams are emphasized.