Senior Full-Stack Engineer – Cloud & Microservices

User Experience Researchers Pte Ltd; Singapore; Hybrid; SGD 120,000 - 180,000; Full time

Job summary

User Experience Researchers Pte Ltd is seeking a Senior Software Engineer (Full Stack) to lead end-to-end development of software and web applications for financial-sector users and internal stakeholders. You will be part of an agile team delivering microservices, frontend and backend components, and AI-assisted development practices.

You will own cloud-enabled, secure, scalable solutions using .NET Core, Java, AWS, Docker, and UI technologies, collaborating with UX/UI designers and QA to ensure

Qualifications

• Proven experience working on .NET Core stack and related backend technologies.
• Strong proficiency in .NET Core, .NET 8, C#, Java.
• Experience building microservices and event-driven design patterns.
• Proficiency with Entity Framework for database interactions.
• Familiarity with Docker and containerization principles.
• Knowledge of Domain-Driven Design (DDD) in backend development.
• Experience implementing OAuth for authentication/authorization.
• Experience with AWS services (S3, Lambda, API Gateway, RDS).
• Proficiency in frontend basics including HTML, CSS, JavaScript, ASP.NET and WebForms.
• Experience writing unit tests and maintaining a design system (Storybook).
• Hands-on with legacy .NET Framework apps and migration paths.

Responsibilities

• Design, develop, and maintain microservices architecture.
• Implement event-driven patterns for service communication.
• Utilize EF for efficient data access and management.
• Containerize applications with Docker for scalability.
• Apply DDD to ensure modular code architecture.
• Implement OAuth and security best practices.
• Leverage AWS services for backend development.
• Develop RESTful APIs to connect frontend and backend.
• Apply AI-assisted development concepts (Claude AI via SDD).
• Support legacy .NET Framework apps and migrations.

Skills

.NET Core

C#

Java

DDD principles

OAuth

AWS

Unit testing

Frontend basics

Tools

Docker

Storybook

OpenTelemetry

Quarkus

IIS

Job description

User Experience Researchers Pte Ltd is seeking a Senior Software Engineer (Full Stack) to lead end-to-end development of software and web applications for financial-sector users and internal stakeholders. You will be part of an agile team delivering microservices, frontend and backend components, and AI-assisted development practices.

You will own cloud-enabled, secure, scalable solutions using .NET Core, Java, AWS, Docker, and UI technologies, collaborating with UX/UI designers and QA to ensure