Senior Full-Stack Engineer (Ruby on Rails)

We are looking for a Senior Ruby on Rails Developer to join a product engineering team working on a mature, high-traffic platform with a large and well-established domain model.

Project: A long-running digital platform in the travel, hospitality, and marketplace domain. The product manages complex workflows around properties, reservations, deposits and exchanges, billing, and member onboarding. You'll work on a large Ruby on Rails application, contributing to new features, performance improvements, integrations, and the continuous evolution of the platform.

This is a backend-focused Rails role. You'll work primarily with Ruby on Rails, databases, background processing, APIs, and third-party integrations while contributing to a large and established codebase.

Tech Stack: Ruby, Ruby on Rails 7.x, Rails Engines, MySQL, Redis, Memcached, Solr, Sidekiq, Clockwork, ActionCable, ActiveAdmin.

Authentication & Security: JWT, CanCan, bcrypt, role-based authorization.

Integrations: Stripe, AWS S3/CloudFront/SNS, Twilio, transactional email, product analytics, feature flags, geolocation.

Testing: Minitest, RSpec, FactoryBot, VCR/WebMock, Capybara/Selenium.

Responsibilities:

Develop and deliver backend features using Ruby on Rails;

Work effectively with a large, established Rails codebase and make well-tested, maintainable changes;

Design and implement database changes, models, service objects, APIs, and business logic;

Develop and maintain background jobs and scheduled processes using Sidekiq and related tools;

Build and maintain integrations with third-party services such as Stripe, AWS, and Twilio;

Write and maintain automated tests, including unit, integration, and API tests;

Analyze and optimize application performance across the database, search, caching, and background processing layers;

Contribute to improving system reliability, code quality, and maintainability;

Participate in code reviews and collaborate closely with other engineers and product teams.

Requirements:

-4+ years of professional experience with Ruby on Rails, including production experience with large, established applications;

• Strong experience with Ruby on Rails 7.x;
• Solid knowledge of MySQL and/or PostgreSQL, including schema design, migrations, indexing, and query optimization;
• Strong experience with Sidekiq or similar background job processing tools;
• Experience building and maintaining RESTful APIs;
• Experience integrating third-party services and APIs;
• Strong testing experience with Minitest/RSpec and related testing tools;
• Experience with Git and pull-request workflows;
• Comfortable working with and improving a large, long-lived codebase;
• Good written English and clear communication skills.

• Nice to Have:
• Experience with JavaScript, Vue, Stimulus, or Hotwire;
• Experience with HTML, CSS, and Sass;
• Experience with Solr, Elasticsearch, or other full-text search technologies;
• Experience with Stripe or other payment and billing integrations;
• Experience with ActiveAdmin or similar admin frameworks;
• Familiarity with Docker and Kubernetes;
• Familiarity with CI/CD, including CircleCI or GitHub Actions;
• Familiarity with AWS, particularly S3, CloudFront, or SNS;
• Experience with monitoring and observability tools such as Prometheus or APM solutions;