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Senior .NET Software Developer

User Experience Researchers Singapore — Singapore · Posted ~5 hours ago

Senior Full-time

Skills

C# .NET Core ASP.NET Core Microservices Backend development REST APIs System scalability Performance optimization Automated testing AI automation

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Summary ✨ AI‑Generated

A technology organization is seeking a Senior .NET Developer to build and enhance high-concurrency backend services for membership and transaction processing. You will design scalable microservices using C# and ASP.NET Core, integrate APIs and external vendors, and ensure performance, reliability, and maintainability in high-traffic environments. Exposure to AI and automation technologies is also valued.

Highlights

Work on high-concurrency backend systems supporting membership services and financial transaction processing. The role offers opportunities to build scalable microservices, integrate external systems, collaborate across technical teams, and contribute to reliable, well-tested software.

Description

We are seeking experienced .NET Developers to build and enhance high-concurrency backend services, focusing on core membership systems and card transaction processing. The role involves developing scalable microservices and ensuring seamless integration with infrastructure and external vendors. Key Responsibilities Design and develop microservices using ASP.NET Core / .NET CoreBuild and maintain backend services for membership profiles and card transaction systemsDevelop and integrate Card APIs and core membership engine functionalitiesEnsure system performance, scalability, and reliability in high-traffic environmentsCollaborate with cross-functional teams including product, infrastructure, and external vendorsWrite clean, maintainable, and well-tested code Requirements: Strong proficiency in C# / .NET Core / ASP.NET CoreBasic understanding or exposure to AI / automation technologies (e.g., APIs, workflow automation, or AI-driven solutions)Strong problem-solving skills with the ability to troubleshoot complex technical issuesGood communication skills and ability to work effectively with cross-functional teamsExperience with microservices architecture is an added advantage Good to Have: Experience with Azure Cloud or hybrid infrastructure environmentsExposure to API integrations and payment/card systemsFamiliarity with CI/CD pipelines and DevOps practices