Back end developer

Job Title: Senior Software Engineer

Location: Brazil, Costa Rica, Colombia

Work Mode: 100% Remote

Employment Type: Independent Contractor (hourly pay, no benefits; candidate responsible for own taxes)

Contract Duration: 6 months, with strong possibility of extension

Hours: 40 hours per week

About the Role

We are supporting a large Vendor Platform Transformation initiative focused on rebuilding vendor onboarding and intake systems. The team manages vendor relations and custom intake workflows for bulk item onboarding.

This is a backend-heavy role with approximately 90% backend and 10% frontend work. The primary focus for the next year+ will be Ruby and Elixir systems, though strong backend engineers with experience in Java, Kotlin, C# or Go will also be considered.

The team is looking for engineers with strong backend fundamentals, scalable systems experience and solid coding and system desig...