Software Engineer REQ107

User Experience Researchers Pte.Ltd; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

User Experience Researchers Pte.Ltd in Singapore is seeking a Senior .NET (Full Stack) Developer to own end-to-end solutioning for software and web apps in a financial services context. You will join an agile team developing microservices in .NET Core/.NET 8, containerized with Docker, and deployed on AWS.

The role also covers frontend work with React.js/Next.js, unit testing with Jest, and UI components in Storybook.

Qualifications

• Proven experience as a Full Stack .NET Core Developer or similar role.
• Strong proficiency in .NET Core, .NET 8, C# and related backend technologies.
• Experience building microservices and event-driven designs.
• EF for database access and SQL proficiency.
• Familiarity with Docker and containerization principles.
• Knowledge of DDD, OAuth, and security best practices.
• Hands-on AWS experience (S3, Lambda, API Gateway, DynamoDB).
• Proficiency in React.js, Next.js, HTML, CSS, JavaScript; Jest tests; Storybook.

Responsibilities

• Design, develop, and maintain microservices using .NET Core and .NET 8.
• Implement event-driven communication and secure authentication with OAuth.
• Develop RESTful endpoints to connect frontend and backend services.
• Build responsive UI with React.js/Next.js and maintain UI components in Storybook.
• Write unit tests with Jest and ensure code quality across the stack.
• Collaborate with UX/UI designers to deliver intuitive interfaces.

Skills

.NET Core

.NET 8

C#

Entity Framework

Docker

AWS (S3, Lambda, API Gateway, DynamoDB

React.js

Next.js

REST APIs

UI/UX collaboration

Tools

Jest

Storybook

DynamoDB

Job description

As a Senior .NET (Full Stack) Developer, you will be responsible for the end-to-end solutioning and development of software and web applications. You will be part of an agile team responsible for products used by the client's Financial Industry and the client's officers for the Financial Supervision function.

Key Responsibilities:

Backend Development

• Design, develop, and maintain microservices architecture using .NET Core and .NET 8.
• Implement event-driven architecture to enable seamless communication between microservices.
• Utilize Entity Framework (EF) for efficient database interactions and management.
• Containerize applications using Docker for scalability and deployment flexibility.
• Apply Domain-Driven Design (DDD) principles to ensure clean and modular code architecture.
• Implement OAuth for secure authentication and authorization.
• Develop and enforce security best practices to safeguard sensitive data and systems.
• Utilize AWS services such as S3, Lambda, API Gateway, DynamoDB, etc., for backend development.
• Develop RESTful API endpoints to facilitate communication between the frontend and backend.

Frontend Development:

• Develop responsive and user-friendly web applications using React.js and Next.js.
• Write unit tests using Jest to ensure code quality and reliability.
• Create reusable UI components and maintain a consistent design using Storybook.
• Collaborate closely with UX/UI designers to implement intuitive and visually appealing interfaces.
• Troubleshoot and debug issues across the stack, ensuring smooth application operation.
• Optimize application performance and scalability for a seamless user experience.

What We Are Looking For:

Requirements

• Proven experience as a Full Stack .NET Core Developer or similar role.
• Strong proficiency in .NET Core, .NET 8, C#, and related backend technologies.
• Experience building microservices architecture and implementing event-driven design patterns.
• Proficiency in Entity Framework (EF) for database management.
• Familiarity with Docker and containerization principles.
• Knowledge of Domain-Driven Design (DDD) principles and their application in backend development.
• Experience implementing OAuth for authentication and authorization.
• Understanding of security best practices and their application in backend development.
• Hands‑on experience with AWS services such as S3, Lambda, API Gateway, DynamoDB, etc.
• Proficiency in frontend technologies such as React.js, Next.js, HTML, CSS, and JavaScript.
• Experience writing unit tests using Jest and maintaining a design system with Storybook.
• Strong problem‑solving skills and attention to detail.
• Excellent communication and collaboration skills.

Preferred Qualifications:

• Preferably more than 5 years of experience as a Full Stack Developer.
• Experience working in both Unix and Windows operating environments is preferred.
• AWS certification (e.g., AWS Certified Developer, AWS Certified Solutions Architect).
• Experience with Node.js for server‑side development.
• Familiarity with NoSQL databases such as DynamoDB.
• Knowledge of CI/CD pipelines and DevOps practices.
• Understanding of Agile development methodologies.