Senior Ruby/Rails Back-End Developer

emerchantpay

Sofia, Sofia City Province, Bulgaria🌐 Remote💼 Full-time🗓 2025-04-02 → 2026-07-31

Core

Designing and implementing complex workflows, APIs, and UI backends for high-availability global payment platforms.

Role type

Senior Ruby on Rails back-end developer

Builds

Payment platforms and APIs

Domain

Fintech / Payments

Deliverable

production ML models | product features | infrastructure

Required skills

Ruby, Ruby on Rails, MySQL, PostgreSQL, JavaScript, TDD/BDD, RSpec

Preferred skills

React, Redux, Redis, RabbitMQ, GraphQL, Docker, AWS, Terraform, Ansible

Responsibilities

Designing and implementing complex workflows, APIs, and UI backends; Performing TDD/BDD using tools like RSpec; Scaling highly available payment services

Seniority

Senior, hands-on IC

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