Full Stack Developer (.NET & React)

Allegis Group Singapore Pte Ltd; Singapore; On-site; SGD 90,000 - 140,000; Full time

Job summary

Allegis Group Singapore Pte Ltd is seeking a hands-on Full Stack Developer focused on backend C#/.NET with strong React capabilities. You will contribute to a mix of microservices and frontend components within a large enterprise environment, starting with familiarization and moving toward broader development initiatives.

The role emphasizes code quality, testing, and collaboration across global teams, with opportunities to work on core business-critical applications and integrations in a

Qualifications

• Minimum 5+ years of professional software development experience.
• Strong hands-on C#/.NET development skills.
• Solid React experience with ability to own a frontend component.
• Strong fundamentals including clean code and design patterns.
• Hands-on with unit testing and integration testing.
• Proficient in SQL and relational databases.
• Ability to understand, refactor and explain existing code.
• Strong problem-solving and collaboration in a global environment.

Responsibilities

• Develop, enhance and maintain C#/.NET applications and microservices.
• Support Order Management System integrations and related services.
• Own and maintain the React frontend component when required.
• Work across BAU activities before progressing to project delivery.
• Write clean, readable, maintainable and testable code.
• Apply design patterns and testing strategies.
• Review existing code and suggest refactoring or improvements.
• Collaborate effectively with technical and non-technical colleagues globally.

Skills

5+ years

C#/.NET

React

Clean code

Unit testing

SQL

Refactoring

Problem solving

Tools

AWS

Terraform

Legacy .NET

SQL Server

Job description

Overview

We're hiring a Full Stack Developer to join a high-performing engineering team responsible for developing and supporting business-critical applications within a large enterprise environment.

This is a backend-focused role for a hands-on engineer with strong C#/.NET experience and solid React capability. You'll work across modern application development, microservices and frontend components, initially gaining familiarity with the existing environment before contributing to broader development and enhancement initiatives.

What You'll Do

• Develop, enhance and maintain C#/.NET applications and microservices.
• Support Order Management System integrations and related application services.
• Own and maintain the React frontend component when required.
• Work across BAU activities initially before progressing into project delivery.
• Write clean, readable, maintainable and testable code.
• Apply appropriate design patterns, unit testing and integration testing.
• Review existing code, identify issues and recommend practical refactoring or improvements.
• Collaborate effectively with technical and non-technical colleagues in a global environment.

Must-Have Skills

• 5+ years of professional software development experience.
• Strong recent hands-on development and implementation experience using C# and .NET.
• Solid React experience, with the ability to independently support and own a smaller frontend component.
• Strong software engineering fundamentals, including clean code and sensible design patterns.
• Hands-on experience with unit testing and integration testing.
• Working knowledge of SQL and relational databases.
• Ability to understand existing code, identify problems and explain how it should be improved or refactored.
• Strong problem-solving, communication and collaboration skills.

Nice-to-Have Skills

• AWS or broader cloud experience.
• Experience deploying services to AWS and managing infrastructure using Terraform.
• Legacy .NET experience.
• Financial services, Fixed Income or Order Management System experience.
• Practical use of AI tools within day-to-day software development and coding workflows.

We regret to inform that only shortlisted candidates will be notified.

EA registration number : WONG LIN, RACHEL, R25158204

Allegis Group Singapore Pte Ltd, Company Reg No. 200909448N, EA Licence No. 10C4544