Senior Backend Developer (Ruby On Rails)

Workana LLC; Buenos Aires; Remote; ARS 84,586,000 - 101,504,000; Full time

Benefits offered by this job

Remote work

Office visits in Argentina

Direct employment

Job summary

Workana LLC is seeking a Senior Ruby on Rails Developer (Backend Focus) to join a talented international team and contribute to a scalable platform connecting families with educational providers. This direct-hire role offers long-term stability, remote work with occasional visits to the Argentina office, and collaboration with stakeholders across the globe.

The role requires proven RoR experience in major projects, leadership in tech initiatives, and advanced English.

Qualifications

• Proven experience with Ruby on Rails in main projects in recent years.
• Experience building large, complex products with high concurrency.
• Expertise in performance optimization, architecture design, and scalability.
• Experience leading projects or technical teams in e-commerce, marketplaces, or large-scale digital platforms.
• Advanced English (C1 or higher) mandatory.
• Current residence in Argentina (mandatory).

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.

Skills

Ruby on Rails

Performance optimization

Architecture design

Scalability

E-commerce

Marketplaces

Frontend basics

English (C1)

Argentina residency

Tools

React

PostgreSQL

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.

• 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

• 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)

• 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