Ubiminds

Senior Full Stack Engineer – Ruby, React

Ubiminds

full-time

Posted on:

Location Type: Remote

Location: Brazil

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Job Level

Senior

Tech Stack

AWSAzureCloudDockerGoogle Cloud PlatformGraphQLJavaScriptMySQLPostgresReactRubyRuby on RailsSDLCSQL

About the role

  • Design, build, and maintain full stack applications using Ruby, Ruby on Rails, and React.js.
  • Architect backend services with clean separation of concerns and scalable design.
  • Develop and enhance user-facing features using React.
  • Work across the entire SDLC in Agile, Scrum, and DevOps environments.
  • Design and consume RESTful APIs and GraphQL services.
  • Implement and maintain CI/CD pipelines using tools like Docker, CircleCI, and GitHub Actions.
  • Write and maintain unit and integration tests.
  • Apply security best practices, including authentication and authorization.
  • Deploy, monitor, and maintain applications in cloud environments (AWS, Azure, or GCP).
  • Collaborate with cross-functional teams on planning, design, and delivery.

Requirements

  • 4+ years of experience in software engineering.
  • Strong proficiency in Ruby, Ruby on Rails, and React.js.
  • Solid understanding of full stack development and modern SDLC practices.
  • Experience with system design and architecture, focusing on maintainability.
  • Knowledge of SQL databases (PostgreSQL, MySQL).
  • Experience with cloud platforms (AWS, Azure, or Google Cloud).
  • Familiarity with REST APIs, GraphQL, and MVC architecture.
  • Experience with DevOps and CI/CD tools (Docker, CircleCI, GitHub Actions).
  • Strong testing and debugging skills.
  • Awareness of security best practices.
  • Proficiency with Git and workflows such as GitFlow.
  • Strong communication skills in English (written and verbal – C1 level).
Benefits
  • Remote-first culture + MacBook provided.
  • English lessons, referral bonuses, tech talks, and learning initiatives.
  • Full back-office support: HR, career development, and admin services.
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
RubyRuby on RailsReact.jsRESTful APIsGraphQLSQLPostgreSQLMySQLCI/CDunit testing
Soft Skills
communicationcollaborationproblem-solvingdebuggingsecurity awareness