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Backend Developer

1 month, 1 week ago
United States
Full-time
Mid Level
Backend Engineer
Software Development
Angular CI/CD ELK Stack GCP Go Kafka Kubernetes MongoDB MySQL PHP RabbitMQ Redis SQL Symfony
Apply Now
Xsolla

Xsolla

Xsolla is an international payment solution provider for online games, offering tools to launch, monetize, and scale games worldwide with local payment methods and fraud prevention.

Internet Software & Services
251-1K
Founded 2005
View All Jobs 91

Description

  • Develop and maintain backend services for card payment processing using PHP (Symfony) and Golang.
  • Integrate and support payment service providers and acquirers such as Adyen, Checkout.com, and JP Morgan Chase.
  • Design and implement scalable, event-driven architectures for high-load payment systems.
  • Write clean, testable code with comprehensive unit and functional test coverage.
  • Optimize database queries and data models for OLTP workloads using MySQL and MongoDB.
  • Collaborate with the team on system design, code reviews, and technical decisions.
  • Ensure system observability and troubleshoot issues using the ELK stack.
  • Participate in CI/CD pipeline improvements and deployment processes.

Requirements

  • 3+ years of backend development experience with PHP and/or Golang in production environments.
  • Hands-on experience with card payment processing and PSP/acquirer integrations.
  • Understanding of payment flows including authorization, capture, refunds, chargebacks, and reconciliation.
  • Strong knowledge of OOP principles, design patterns, and clean architecture.
  • Proficiency in SQL, database design, and performance optimization.
  • Experience with message queues such as RabbitMQ or Kafka and caching layers such as Redis.
  • Solid understanding of algorithms, data structures, and their practical application.
  • Experience writing unit and integration tests.
  • Knowledge of PCI DSS compliance requirements and secure payment data handling (nice to have).
  • Understanding of 3D Secure (3DS) authentication protocols (nice to have).
  • Experience with tokenization and payment security best practices (nice to have).
  • Knowledge of Apple Pay and Google Pay integration principles (nice to have).
  • Experience with Kubernetes and Google Cloud Platform (nice to have).
  • Familiarity with the ELK stack for monitoring and logging (nice to have).
  • Previous work with high-load, mission-critical systems (nice to have).
  • Frontend development experience with Angular (nice to have).

Benefits

  • 100% company-paid medical, dental, and vision plans.
  • Unlimited Flexible Time Off.
  • A personalized career roadmap for each employee.
  • Training and educational opportunities for professional development.
  • A supportive environment focused on employees' physical, mental, and emotional well-being.
  • An inclusive, diverse workplace committed to equal employment opportunity.

Interested in this position?

Apply directly on the company website

Apply Now

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