Full Stack Developer (.NET & React)

ALLEGIS GROUP SINGAPORE PRIVATE LIMITED; Singapore; On-site; SGD 70,000 - 110,000; Full time

Job summary

Allegis Group Singapore Pte Ltd is seeking a Full Stack Developer to join a high-performing engineering team responsible for building and supporting business-critical applications in a large enterprise environment.

This backend-focused role emphasizes strong C#/.NET experience and solid React capability. You will work across microservices and frontend components, contributing to development, testing, and delivery in a global setting.

Qualifications

• 5+ years of professional software development experience.
• Strong C# and .NET development experience.
• Solid React experience and frontend ownership.
• Fundamentals of clean code and design patterns.
• Experience with unit and integration testing.
• Knowledge of SQL and relational databases.
• Ability to understand and refactor existing code.
• Strong problem-solving and communication skills.

Responsibilities

• Develop and maintain C#/.NET applications and microservices.
• Support Order Management System integrations.
• Own and maintain the React frontend component when needed.
• Contribute to BAU and project delivery.
• Write clean, testable code and apply design patterns.
• Perform unit and integration testing and code reviews.
• Collaborate with global cross-functional teams.

Skills

C# / .NET

React

Unit testing

SQL

Problem solving

Communication

Tools

AWS

Terraform

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