Senior Full Stack Engineer Ruby React

Overview

Senior Full Stack Engineer – Ruby on Rails / React. Remote, full-time.

Ubiminds is a GPTW-certified, people-first company that partners with American software product companies to scale their development footprint. Ubi custom-curates Brazil’s top 5% talent to support LATAM strategies through a unique combination of staff augmentation and employer-of-record services. We are assisting a U.S.

-based company in expanding its engineering team with a Senior Full Stack Engineer who enjoys working across backend and frontend, delivering scalable, secure, and high-quality software solutions.

This role is ideal for someone who enjoys building end-to-end solutions, collaborating in agile teams, and contributing to system design while maintaining a strong focus on code quality and security.

• Design, build, and maintain full stack applications using
  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 Dev Ops environments.
• Design and consume RESTful APIs and GraphQL services.
• Implement and maintain CI/CD pipelines using tools like Docker, Circle
  
  CI, and Git Hub 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.

• 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 (Postgre
  
  SQL, MySQL).
• Experience with cloud platforms (AWS, Azure, or Google Cloud).
• Familiarity with REST APIs
  , GraphQL
  , and MVC architecture
  .
• Experience with Dev Ops and CI/CD tools (Docker, Circle
  
  CI, Git Hub Actions).
• Strong testing and debugging skills.
• Awareness of security best practices
  .
• Proficiency with Git and workflows such as Git Flow
  .
• Strong communication skills in English (written and verbal –
  C1 level
  ).

• Experience in consumer credit, lending, loans, or insurance domains.

• Remote-first culture + Mac Book provided.
• English lessons, referral bonuses, tech talks, and learning initiatives.
• Full back-office support: HR, career development, and admin services.

Ready to apply?
Apply now and grow your international career as a Senior Full Stack Engineer
, building end-to-end solutions with modern technologies.

Remote

• react
• design
• system
• support
• software
• testing
• code
• devops
• ruby
• admin
• senior
• engineer
• engineering
• backend
• digital nomad