Senior Full-Stack .NET Microservices Engineer | AWS

NTT SINGAPORE PTE. LTD.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

NTT Singapore Pte. Ltd. seeks a skilled full‑stack engineer to design, develop, and maintain microservices using .NET Core/.NET 8 and Java. You will architect event‑driven patterns, utilize EF, and containerize with Docker for scalable deployments.

You will implement OAuth, secure coding practices, and work with AWS services (S3, Lambda, API Gateway, RDS) while building RESTful APIs and SPA frontends. Knowledge of Quarkus and OpenTelemetry is a plus.

Qualifications

• Proven professional experience with .NET Core stack and Java.
• Strong proficiency in .NET Core, .NET 8, C#, Java and related backend technologies.
• Experience building microservices and event-driven designs.
• EF for database management and SQL knowledge.
• Docker and containerization principles.
• DDD and modern backend architecture.
• OAuth for authentication/authorization.
• Security best practices for backend systems.
• AWS services: S3, Lambda, API Gateway, RDS, etc.
• Frontend basics: HTML, CSS, JavaScript, ASP.NET, WebForms.
• Unit tests and design systems (Storybook).
• Generative AI usage for Spec Driven Development (SDD).
• Legacy .NET Framework maintenance and migrations.
• IIS and Windows Server deployment with config transforms.
• Java Quarkus for cloud-native microservices and observability.

Responsibilities

• Design, develop, and maintain microservices architecture on .NET Core/.NET 8 and Java.
• Implement event-driven communication between services.
• Utilize EF for efficient database interactions.
• Containerize apps with Docker for scalability.
• Apply DDD principles for modular code architecture.
• Implement OAuth for secure auth.
• Follow security best practices to protect data and systems.
• Leverage AWS S3/Lambda/API Gateway/RDS for backend needs.
• Develop RESTful APIs for frontend-backend integration.
• Apply SDD concepts using Claude AI tech.
• Support legacy .NET Framework apps with migration paths.
• Manage hosting on IIS/Windows Server with config transforms.
• Develop frontend with ASP.NET/WebForms; write unit tests.

Skills

NET Core

C#

Java

Entity Framework

Docker

DDD

OAuth

AWS

UI/Frontend

Storybook

Unit testing

Generative AI

WebForms

IIS/Windows Server

Quarkus

OpenTelemetry

Oracle DB

React/SPA

Tools

Docker

Oracle DB

IIS

Windows Server

Storybook

OpenTelemetry

Quarkus

Job description

NTT Singapore Pte. Ltd. seeks a skilled full‑stack engineer to design, develop, and maintain microservices using .NET Core/.NET 8 and Java. You will architect event‑driven patterns, utilize EF, and containerize with Docker for scalable deployments.

You will implement OAuth, secure coding practices, and work with AWS services (S3, Lambda, API Gateway, RDS) while building RESTful APIs and SPA frontends. Knowledge of Quarkus and OpenTelemetry is a plus.