Qureos

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Back-end Engineer

Key Responsibilities


  • Design, develop, and maintain Ruby on Rails services and RESTful APIs supporting payroll processing, EWA disbursements, and financial reporting.
  • Build and maintain integrations with banking partners, payment gateways, and third-party financial data providers in compliance with CBE regulations.
  • Collaborate with product and frontend teams to deliver features end-to-end, from requirements to production deployment.
  • Manage background job pipelines with Sidekiq and Redis for payroll batch processing, wage disbursements, and async notifications.
  • Own service reliability write RSpec unit and integration tests, set up monitoring, and participate in on-call rotations to ensure 99.9%+ uptime.
  • Contribute to architectural decisions, code reviews, and the definition of Rails engineering best practices across the team.
  • Optimise ActiveRecord queries and database performance to handle high-throughput financial transaction loads.
  • Champion security-first development practices in line with PCI-DSS and financial data protection standards.

Requirements
  • 3–6 years of backend engineering experience in a production environment.
  • Strong proficiency in Ruby on Rails with a solid grasp of Rails conventions, ActiveRecord, and the MVC pattern.
  • Hands-on experience designing and building RESTful APIs consumed by web and mobile clients.
  • Solid command of PostgreSQL schema design, indexing strategies, query optimisation, and migrations.
  • Experience with background job processing using Sidekiq and Redis for async payroll and notification workflows.
  • Understanding of security fundamentals: OAuth2, JWT, data encryption at rest and in transit.
  • Experience working in Agile / Scrum teams with proper Git workflows, code reviews, and CI/CD pipelines.

Benefits


Why Join dopay?

You’ll be be part of a fast-growing fintech company revolutionizing payroll disbursement in Egypt and work closely with senior leadership on one of the most important milestones in the company’s journey. This role offers long-term ownership beyond licensing and the opportunity to help shape how a fintech operates under regulation at scale.

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