Senior Ruby/Rails Back-End Developer

eMerchantPay

Sofia, Sofia City Province, BulgariaRemoteFull-time2025-04-02 → 2026-11-11

Remote

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

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

About eMerchantPay

emerchantpay is a leading global payment service provider and acquirer for online, mobile, in-store and over the phone payments. Our global payments solution is available through a simple integration, offering a diverse range of features, including global acquiring, global and local payment methods, advanced fraud management and performance optimisation. We empower businesses to design seamless and engaging payment experiences for their consumers. We are looking for a Senior AI Engineer to join our AI Engineering team and help design, build, and roll out production-grade AI solutions, with a s