Software Developer

KEAWORLD PTE. LTD.; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

KEAWORLD PTE. LTD. is seeking a skilled .NET developer to design and maintain full-stack solutions across Blazor UI, APIs, and service layers.

The role involves managing Azure data pipelines for marketplace and inventory synchronization, integrating third-party APIs, and generating large-scale reports from production data. You will optimize SQL performance, extend AI agent features on Azure OpenAI, and resolve production issues.

Qualifications

• Min 2+ years of hands-on C# / .NET development (ASP.NET Core) experience.
• Hands-on Blazor Server experience — required.
• Proficient with Entity Framework Core and SQL Server.
• Solid grasp of dependency injection, repository pattern, and service layer architecture.
• Confident reading and extending large, existing codebases.

Responsibilities

• Build new features across Blazor UI, API controllers, service layer, and database models.
• Develop and maintain background job services for marketplace and inventory data sync.
• Build and optimize data pipelines on Azure; transform data across sources for integration and analysis.
• Integrate with third-party APIs, e.g. Amazon SP-API
• Generate Excel, PDF, and CSV reports from large production datasets.
• Debug and resolve production issues using Azure Application Insights and telemetry.
• Optimize SQL queries and job performance across large SQL Server datasets.
• Extend AI agent features built on Azure OpenAI and Semantic Kernel.
• Write efficient, reusable, and scalable code, document and communicate solutions clearly to both technical and non-technical stakeholders.

Skills

C# / .NET development

Blazor Server

Entity Framework Core

SQL Server

DI / repository pattern / service

Azure (App Service, Blob Storage, Sign

Azure Pipelines

REST API integration

AI agent development (LLM tools)

Tools

Azure DevOps

Telerik UI for Blazor

Job description

Job Summary:

This role involves developing and maintaining full-stack solutions across Blazor UI, APIs, service layers, and databases, while managing Azure-based data pipelines and background jobs for marketplace and inventory sync. The candidate will integrate third-party APIs (e.g., Amazon SP-API), generate large-scale reports, optimize SQL and job performance, enhance AI agent features on Azure OpenAI, and resolve production issues. Strong coding, problem-solving, and clear communication with both technical and non-technical stakeholders are essential.

Key Responsibilities:

• Build new features across Blazor UI, API controllers, service layer, and database models.

• Develop and maintain background job services for marketplace and inventory data sync.

• Build and optimize data pipelines on Azure; transform data across sources for integration and analysis.

• Integrate with third-party APIs, eg. Amazon SP-API

• Generate Excel, PDF, and CSV reports from large production datasets.

• Debug and resolve production issues using Azure Application Insights and telemetry.

• Optimize SQL queries and job performance across large SQL Server datasets.

• Extend AI agent features built on Azure OpenAI and Semantic Kernel.

• Write efficient, reusable, and scalable code, document and communicate solutions clearly to both technical and non-technical stakeholders.

Requirements:

• Min 2 + years of hands-on C# / .NET development (ASP.NET Core) experience

• Hands-on Blazor Server experience — required

• Proficient with Entity Framework Core and SQL Server

• Solid grasp of dependency injection, repository pattern, and service layer architecture

• Confident reading and extending large, existing codebases

• Familiarity with Microsoft Azure (App Service, Blob Storage, SignalR)

• Familiarity with .NET Worker Services and Azure Pipelines

Additional requirements:

• Solid grasp of dependency injection, repository pattern, and service layer architecture

• Confident reading and extending large, existing codebases

Good to Have:

• Experience with Telerik UI for Blazor

• CI/CD exposure in Azure DevOps

• Azure Application Insights — monitoring, telemetry, and production diagnostics

• Prior experience with REST API integrations

• Large-scale database work — bulk operations, window functions, performance tuning

• Prior experience with AI agentic development — LLM tool use, agent orchestration