Senior Backend Developer (Ruby on Rails)

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 the company

• 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