Senior Ruby on Rails Developer

About the Role

We are looking for a Senior Ruby on Rails Developer to join a transformation project for an international luxury travel company.

The project involves migrating and modernizing a critical internal back-office application used by the operations and concierge teams to manage bookings, trips, properties, guests, owners, vehicles, payments, taxes, and related workflows.

You will primarily work on the Ruby on Rails backend, taking ownership of features from technical planning and data modeling through development, testing, and release.

Key Responsibilities

Develop and maintain applications using Ruby on Rails 7.1+

Own features end-to-end: planning, design, development, testing, and release

Contribute to a complex Rails migration from an existing ASP.NET/MS SQL system

Design and optimize database schemas and data models using PostgreSQL

Analyze existing business logic and translate it into the new Rails architecture

Build and integrate external systems such as CRM and payment gateways

Develop secure and scalable backend functionality for sensitive customer data

Work with Inertia.js and React when frontend involvement is required

Write clean, maintainable, and well-tested production code

Participate in code reviews and technical discussions

Troubleshoot production issues and improve application reliability

Work with feature flags and gradual feature rollouts

Use AI coding tools/agents to improve development efficiency

Collaborate with Product, Design, QA, and Engineering teams

Required Skills

5–6+ years of professional Ruby on Rails experience

Strong hands-on experience with Ruby on Rails 7+

Strong knowledge of PostgreSQL

Excellent database design, normalization, and data modeling skills

Experience working with complex business domains and legacy-system migrations

Strong understanding of backend architecture and application design

Experience integrating third-party APIs and external systems

Strong understanding of application security and data protection

Experience writing automated tests and production-quality code

Good understanding of CI/CD and cloud/containerized environments

Good English communication skills

Strong problem-solving and analytical abilities

Ability to work independently and take ownership of features

Technical Environment

Ruby on Rails 7.1+

PostgreSQL

Inertia.js

React

Hotwire/Turbo

Sprockets / Propshaft esbuild / Vite

AWS / ECS

Sentry

Grafana

CloudWatch

Mapbox

Pundit

Feature flagging

CI/CD

Trunk-based development

Nice to Have

Experience with travel, hospitality, booking, or e-commerce platforms

Experience migrating applications from ASP.NET / MS SQL Server

Experience with complex back-office or operations platforms

React experience

Payment gateway integration experience

Familiarity with UX and component-based frontend development

Experience using AI coding agents

Important

Next.js is not a mandatory requirement. The project is primarily focused on Ruby on Rails migration and backend development, so strong Rails expertise is more important than extensive frontend experience.

Ideal Candidate The ideal candidate is a senior, hands-on Ruby on Rails engineer with strong experience in complex applications, database modeling, migrations, integrations, and business logic. Experience with legacy-system modernization and working on large operational platforms will be highly valuable.