Senior Full-Stack Engineer — Payments Platform

Moyasar; Saudi Arabia; On-site; SAR 240,000 - 360,000; Full time

Job summary

Moyasar is seeking a Senior Software Engineer - Full Stack to join our Engineering team in Saudi Arabia. You will work across the stack using Ruby on Rails, PostgreSQL, Redis, and Sidekiq to build and improve our digital payment products and merchant services.

You will understand merchant needs, shape technical solutions, and take ownership from idea to delivery, ensuring performance, reliability, and security across systems.

Qualifications

• Bachelor's degree in a relevant field.
• 5+ years of software engineering experience.
• Strong experience with Ruby and Ruby on Rails.
• Strong full-stack development experience.
• Experience with PostgreSQL, Redis, Sidekiq, and REST APIs.
• Experience building user-facing web products.
• Strong product mindset and ownership.
• Good understanding of testing, performance, and scalable system design.
• Strong problem-solving and communication skills.
• Experience in fintech, digital payments, or financial services is a strong plus

Responsibilities

• Build and improve full-stack features for Moyasar's payment products and merchant services.
• Develop backend services, REST APIs, and user-facing web features.
• Build reliable integrations that support our payment ecosystem.
• Understand merchant and business needs and turn them into practical technical solutions.
• Take ownership of features from problem definition through development and production.
• Work with Ruby on Rails, PostgreSQL, Redis, and Sidekiq.
• Improve the performance, reliability, scalability, and security of our systems.
• Write clean, maintainable, and well-tested code.
• Contribute to architecture and technical decisions.
• Review code and support other engineers.
• Troubleshoot production issues and continuously improve our products

Skills

Ruby on Rails

Full-stack development

REST APIs

Testing & performance

Problem solving & communication

Fintech domain (plus)

Education

Bachelor's degree in Computer Science or related field

Tools

PostgreSQL

Redis

Sidekiq

Job description

Moyasar is seeking a Senior Software Engineer - Full Stack to join our Engineering team in Saudi Arabia. You will work across the stack using Ruby on Rails, PostgreSQL, Redis, and Sidekiq to build and improve our digital payment products and merchant services.

You will understand merchant needs, shape technical solutions, and take ownership from idea to delivery, ensuring performance, reliability, and security across systems.