Mid-level Software Engineer – Backend, Ruby on Rails

Responsibilities

• On a daily basis, you will be responsible for solving complex technical challenges with a focus on fast delivery and continuous value creation.
• Implement technical solutions with an emphasis on quality, readability and adherence to the standards defined by the team, contributing to the construction of scalable, secure and sustainable systems.
• Plan and execute your deliveries with autonomy proportional to your level of experience, staying aligned with the team’s priorities and ensuring predictability and reliability in fulfilling commitments.
• Take responsibility for systems in production: monitor errors, fix bugs and collaborate on maintaining the technical health of applications, including asynchronous jobs and queues.
• Actively participate in refinements, technical discussions and planning sessions, contributing ideas, identifying technical risks and helping to break down tasks in a clear, executable way.
• Pursue continuous learning through feedback, code reviews and continuous-improvement initiatives, demonstrating technical growth and increasing autonomy in problem solving.
• Collaborate with the team during the technical discovery of new requirements, proposing simple and efficient alternatives aligned with the existing architecture and avoiding unnecessarily complex solutions.
• Maintain transparent and respectful communication with the team, sharing context, raising questions clearly and contributing to a collaborative, high-trust environment.

Requirements

• Ruby on Rails: practical experience with Rails, following good practices for code organization, framework conventions and domain-driven design patterns.
• Software Architecture: knowledge of system design, modularization and RESTful APIs.
• Software Engineering Practices: familiarity with SOLID principles, design patterns, code review, automated testing, refactoring and version control (Git).
• Ruby Programming: proficiency in modern Ruby, with the ability to write expressive, readable and well-tested code.
• Background Jobs and Asynchronous Processing: familiarity with asynchronous processing queues using Sidekiq, including creating workers, retries and job monitoring.
• Development Lifecycle: experience participating in the delivery flow (technical discovery, refinements, QA and deploy), with increasing autonomy at each stage.
• Databases: familiarity with relational databases (e.g., PostgreSQL), including data modeling and writing queries.
• Proven experience as a software engineer working on development and maintenance of backend systems in production.
• Active involvement in digital product projects with significant deliveries in scalable, highly available systems.
• Hands‑on experience with Ruby on Rails, building and maintaining backend applications in production.
• Familiarity with API design, relational data modeling and service integration.
• Experience working in agile teams, collaborating with PMs, designers and other engineers to build product-oriented solutions.
• Basic knowledge of version control and CI/CD tools, with an understanding of deployment environments and application monitoring.