Backend Developer (Middle to Senior)
About the role
As a Backend Software Developer, you will be responsible for designing, developing, and maintaining backend services and APIs. You will collaborate with cross-functional teams to build robust and efficient backend systems that integrate seamlessly with front-end applications and cloud-based services. The ideal candidate will have a minimum of 3+ years of experience in backend development and a strong technical background in .NET Core, API development, and cloud services.
Key responsibilities
Design, develop, and maintain backend services and APIs.
Optimize database performance and design efficient data models.
Implement authentication, authorization, and security best practices.
Develop and maintain asynchronous processing and messaging systems.
Work closely with front-end and DevOps teams to integrate backend functionalities.
Debug, troubleshoot, and improve system performance and reliability.
About you
3+ years of experience in back-end development.
Strong expertise in .NET Core / ASP.NET Core for building web APIs and backend services.
Proficiency in C# with a focus on clean, efficient, and scalable code.
Experience with relational databases such as PostgreSQL or SQL Server (writing complex queries, optimizing performance, designing schemas).
Strong understanding of RESTful API design and development.
Implementation of authentication and authorization using OAuth2, JWT, and AWS Cognito.
Experience with asynchronous processing and messaging systems (e.g., Kafka, RabbitMQ, AWS SNS/SQS).
Background in building distributed systems and event-driven architectures.
Fluent in English and M*ndarin.
Familiarity with NoSQL databases (e.g., DynamoDB, MongoDB).