Depixen
Senior Backend Developer [Payments]
DepixenTurkey11 hours ago
Full-timeEngineering, Information Technology

We're looking for a Senior Backend Developer to lead the design and development of our payment and wallet services.

You'll build and maintain systems that serve millions of users in real-time, directly impacting our users worldwide.


Responsibilities


  • Architect and scale our core payment processing and digital wallet infrastructure.
  • Lead end-to-end design of high-availability systems handling millions of transactions.
  • Establish and enforce engineering best practices across the payments domain.
  • Drive system reliability through comprehensive testing, monitoring, and incident response.
  • Mentor engineers and contribute to technical roadmap decisions.
  • Collaborate with product, compliance, and finance teams to deliver secure payment features.


Required Qualifications


  • 5+ years of building backend systems in Golang [preferred] or Java.
  • Proven experience with large-scale payment systems [e.g, processing, routing, fraud checks].
  • Strong expertise in PostgreSQL, Redis, and designing RESTful APIs.
  • Deep understanding of distributed systems, microservices, DDD, and async workflows.
  • Hands-on experience with Docker, cloud platforms and observability tools.
  • Knowledge of OOP, SOLID, and design patterns.


Nice to Have


  • Familiarity with modern frontend frameworks [React].
  • Payment compliance [PCI DSS, PSD2] standards.
  • Idempotency patterns and financial system best practices.

Key Skills

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