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Senior Backend Developer (Ruby on Rails)

Roles & Responsibilities

  • Proven experience with Ruby on Rails in main projects in recent years (not only side projects).
  • Strong track record building and scaling large, complex products with high concurrency, millions of users, and critical integrations.
  • Expertise in performance optimization, architecture design, and scalability.
  • Experience leading projects or technical teams in e-commerce, marketplaces, or large-scale digital platforms.

Requirements:

  • Design, develop, and maintain scalable backend solutions with Ruby on Rails.
  • Solve complex technical challenges related to performance, concurrency, and distributed architecture.
  • Lead technical initiatives and mentor other team members, and participate in architectural decisions.
  • Collaborate with cross-functional teams (Product, Frontend, DevOps) in an Agile environment and support the migration of infrastructure to AWS.

Job description

About the Role

We are looking for a Senior Ruby on Rails Developer (Backend Focus) to join a talented international team and contribute to the development of a scalable platform that connects families with educational providers.

This is a direct hire opportunity with the client’s payroll, offering long-term stability and professional growth.

Responsibilities

  • Design, develop, and maintain scalable backend solutions with Ruby on Rails.
  • Solve complex technical challenges related to performance, concurrency, and distributed architecture.
  • Lead technical initiatives and mentor other team members.
  • Collaborate with cross-functional teams (Product, Frontend, DevOps) in an Agile environment.
  • Participate in architectural decisions and support the migration of infrastructure to AWS.
  • Contribute to improving scalability, reliability, and performance of the platform.

Requirements

  • Proven experience with Ruby on Rails in main projects in recent years (not only side projects).
  • Strong track record building and scaling large, complex products (high concurrency, millions of users, critical integrations).
  • Expertise in performance optimization, architecture design, and scalability.
  • Experience leading projects or technical teams in e-commerce, marketplaces, or large-scale digital platforms.
  • General frontend knowledge (React, HTML, CSS, JavaScript) is a plus.
  • Advanced English (C1 or higher, mandatory): you will work closely with international stakeholders.
  • Current residence in Argentina (mandatory).

Tech Stack

  • Languages: Ruby, JavaScript, HTML, CSS
  • Frameworks: Ruby on Rails, React (in some areas of the project)
  • Database: PostgreSQL
  • Infrastructure: Active migration to AWS
  • Methodology: Agile

Benefits

  • Competitive compensation: USD 5,000 – 6,000/month (on client’s payroll) 100% remote work, with occasional visits to the client’s office in Argentina
  • Direct and stable employment with the client
  • Opportunity to work with international stakeholders and high-level engineering teams
  • Involvement in complex projects with continuous learning opportunities

Selection Process

  • Interview with Workana
  • Interview with People (Client)
  • Technical interview with the Team Lead (based in Silicon Valley)
  • Two final interviews with the client (one technical, one cultural)

Apply now and join a global team building impactful platforms.

  • Location: Argentina (mandatory)
  • Modality: Full-time, direct hire on the client’s payroll
  • Company: Software company based in Pilar, Buenos Aires, providing services to global clients
  • Industry: Edtech / Marketplace for educational activities

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