Senior AI-Native Software Engineer - Remote LATAM

The Flex; Santa Fe Capital; Remote; ARS 215,229,000 - 292,096,000; Full time

Benefits offered by this job

100% remote work

English classes

Referral program

Access to learning platforms

Argentina's public holidays

Job summary

Darwoft is hiring a Senior/Staff Software Engineer to build AI-native SaaS on a modern transaction platform. You will work with Claude Code, OpenAI Codex and other AI agents to accelerate development across a large codebase, owning architectural decisions and production readiness.

The role prioritizes pragmatic engineering, strong fundamentals, and product-minded thinking. This is a remote, LATAM-focused opportunity with a contractor engagement and USD payments.

Qualifications

• Strong professional experience building and operating production software systems.
• Excellent software engineering fundamentals, including architecture, system design, debugging, testing, and maintainability.
• Experience working with large or complex existing codebases.
• Strong backend or full-stack engineering experience using modern programming languages and frameworks.
• Experience building modern web applications and SaaS products.
• Strong understanding of APIs, application architecture, integrations, data modeling, and distributed systems.
• Experience with relational databases and production data environments.
• Strong understanding of automated testing and modern software development practices.
• Familiarity with cloud environments, CI/CD pipelines, deployments, and production operations.

Responsibilities

• Navigate, understand, and evolve a large existing 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, architectural risks, reliability issues, and opportunities for improvement.
• Use Claude Code, Codex, Cursor, Copilot, or similar AI coding agents extensively.
• Leverage AI agents to explore codebases, design implementations, generate and refactor code, debug issues, write tests, and accelerate delivery.
• Build and evolve backend services, APIs, integrations, data models, and application workflows.
• Contribute across the application stack when needed.
• Strengthen automated testing, maintainability, observability, reliability, and production readiness.
• Improve development workflows, tooling, automation, and engineering practices.
• Troubleshoot complex issues across application, data, and infrastructure layers.
• Balance development speed with software quality and long-term maintainability.
• Work closely with product leadership to translate business problems into effective technical solutions.
• Help a small engineering team achieve significantly greater development leverage through AI-assisted engineering.

Skills

Production software

Architecture

System design

Debugging

Testing

Maintainability

API design

Tools

Claude Code

OpenAI Codex

Cursor

GitHub Copilot

Windsurf

Job description

Darwoft is hiring a Senior/Staff Software Engineer to build AI-native SaaS on a modern transaction platform. You will work with Claude Code, OpenAI Codex and other AI agents to accelerate development across a large codebase, owning architectural decisions and production readiness.

The role prioritizes pragmatic engineering, strong fundamentals, and product-minded thinking. This is a remote, LATAM-focused opportunity with a contractor engagement and USD payments.