Senior Software Engineer for High-Load Payment Processing Platform

Xsolla
Full-time montreal (administrative region), qc Other-General
Posted:
June 09, 2026
Location:
montreal (administrative region), qc, Canada

Job Description

Become a key player in our Payments team as a Senior Software Engineer. Design and maintain robust systems for processing payments and integrate with global service providers in a dynamic environment.
This senior-level role focuses on building and scaling backend services crucial for payment processing. With a strong emphasis on high-load systems, you'll tackle event-driven architectures, optimize transaction flows, and ensure reliability under pressure. Key skills include proficiency in PHP or Golang and hands-on experience with payment service provider integrations.
Key Responsibilities:
• Design and maintain backend services for payment processing
• Integrate and support various payment service providers
• Build scalable event-driven architectures
• Optimize database queries and schemas
• Monitor system health and troubleshoot issues
Requirements:
• 4+ years of backend engineering experience
• Proficiency in PHP and/or Golang
• Experience with paymen...

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Job Overview

Job Type: Full-time
Location: montreal (administrative region), Canada
Posted: June 09, 2026
Deadline: July 19, 2026