Senior Backend Engineer

Backend Developer (Ruby on Rails)We are seeking a skilled Backend Developer to focus on the development of our core applications.This role emphasizes building robust, scalable and secure services and APIs that power our products.

You'll be expected to write clean, maintainable code, work deeply with databases and leverage popular gems and patterns to deliver production-grade solutions.Key Responsibilities : Design, develop and optimize backend services and APIs using Ruby on Rails.Implement background job processing and asynchronous workflows (Sidekiq, ActiveJob).

Manage database design, migrations and query performance optimization (PostgreSQL).

Write automated tests (RSpec, FactoryBot, Capybara) to ensure reliability and maintainability.Integrate third-party APIs and services efficiently and securely.Ensure security best practices (Devise, Pundit, JWT auth) are applied across the stack.Monitor, debug and profile production systems to maintain high performance.Contribute to continuous improvement by identifying and applying best practices in Rails development.Core Skills & Experience : Expertise in Ruby on Rails : deep knowledge of MVC, ActiveRecord, service objects, concerns and RESTful architecture.Strong experience with relational databases (PostgreSQL), query optimization and indexing.Proficiency with popular Rails gems such as Devise, Pundit / CanCanCan, Sidekiq, Searchkick / PGSearch, RSpec & FactoryBot, ActiveStorage / CarrierWave / Shrine and PaperTrail.Experience with Git workflows and CI / CD pipelines.Ability to troubleshoot, debug and optimize complex Rails applications.Strong problem-solving skills with attention to detail.Nice to Have : Experience deploying and scaling apps on Heroku or AWS.Familiarity with Docker or containerized Rails environments.Exposure to frontend technologies (React, JavaScript) to collaborate effectively.Knowledge of caching strategies (Redis, Memcached) for performance optimization.