Payoneer’s mission is to enable businesses of all sizes from anywhere in the world to access the rising, global economy by enabling them to transact globally as easily as they do locally. Life at Payoneer is a global community, where you’ll work with colleagues all over the world, serving small- and medium-sized business customers and partners in over 190 markets. 

Backend Developer 

Shanghai, China

Role Overview:We’re seeking a skilled Backend Developer with strong experience in .NET and C#. You’ll be responsible for building reliable, high-performance backend systems, integrating with various services, and ensuring code quality through automated testing.

Key Responsibilities:

• Develop and maintain backend services using .NET (C#) with clean and scalable code
• Design and manage SQL, MongoDB, and Elasticsearch databases
• Build and consume RESTful APIs
• Implement event-driven architecture using Kafka and RabbitMQ
• Work across on-premise and cloud environments
• Write and maintain automated tests to ensure code quality and stability
• Focus on performance optimization and building highly reliable systems

Required Skills:

• Strong knowledge of .NET (C#) and backend system design
• Experience with relational and NoSQL databases
• Familiarity with messaging systems (Kafka, RabbitMQ)
• Solid understanding of API development and integration
• Background in cloud technologies (Azure, AWS) and on-prem deployments
• Hands-on experience with automated testing frameworks
• Awareness of performance tuning, scalability, and system reliability best practices such as outbox pattern

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