Argentina onlyLocation: Anywhere in LATAM
Job Type: Contractor (Full-Time, Remote)
Project: SaaS Application Modernization
Time Zone: Aligned with US time zones
English Level: B2 or above
Get to Know Us
At Darwoft, we build software that drives real change. But were more than just tech were people first. We believe in building human-centered digital experiences and having fun while we do it. Our team is curious, passionate, and always growing. Based in LATAM, weve been partnering with global clients to create digital products with purpose, quality, and impact.
Were currently scaling a team to support a long-term client in modernizing and maintaining critical SaaS platforms. If youre passionate about solving complex engineering challenges and improving legacy systems, wed love to hear from you.
Were Looking For a Senior Full Stack Software Engineer (Ruby on Rails Focus)
Were seeking a highly skilled Full Stack Engineer with strong expertise in Ruby on Rails, along with solid frontend experience using JavaScript frameworks such as React or Angular. Youll be working across several legacy repositories, refactoring code, and supporting ongoing improvements including automated testing and API integrations.
What Youll Be Doing
Maintain and evolve existing Ruby on Rails applications across multiple repositories
Debug and refactor complex legacy code to boost system performance and reliability
Build and maintain REST APIs and backend services
Support UI test automation using Playwright
Integrate with third-party and internal APIs while ensuring platform scalability and security
Champion clean code, version control, and CI/CD best practices
Leverage AI-assisted development tools like GitHub Copilot or Cursor to boost productivity
What You Bring
Required
5+ years of professional experience in software development
Deep expertise in Ruby on Rails
Experience working with and improving legacy systems
Proficiency in JavaScript or TypeScript and modern frontend frameworks (React or Angular)
Strong command of SQL (preferably PostgreSQL)
Solid understanding of Git workflows (branches, pull requests, code reviews)
Experience writing or maintaining automated UI tests (Playwright or similar)
Nice to Have
Experience with Kotlin or Java for backend development
Python scripting skills
Familiarity with AI coding assistants (Copilot, Cursor, etc.)
Soft Skills
Analytical mindset and strong problem-solving skills
Ability to work autonomously in fast-paced environments
Clear communicator and collaborative team player
Ownership mindset and commitment to long-term code quality
Perks & Benefits (Contractor)
Contractor agreement with payment in USD
100% remote work
Argentinas public holidays
English classes
Referral program
Access to learning platforms
United States
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