Senior .NET Full-Stack Architect: React + Microservices

TECHEMERGE SOLUTIONS PTE. LTD.; Singapore; On-site; SGD 180,000 - 260,000; Full time

Job summary

TecheMerge Solutions Pte. Ltd. is seeking an experienced Senior Full Stack .NET Architect to design, develop, and maintain scalable enterprise applications using React.js, ASP.NET Core, C#, and microservices.

The ideal candidate will lead technical delivery, mentor engineers, build secure APIs, modernize legacy systems, and collaborate with cross-functional Agile teams. Experience with AI-assisted tools, SDD, and TDD is highly desirable.

Qualifications

• 12+ years of enterprise application development using the Microsoft stack.
• Experience in financial services or investment platforms.
• Experience in large Agile development teams.
• Strong analytical, debugging, communication, and technical leadership skills.
• Ability to independently drive technical solutions from requirement analysis through production deployment.

Responsibilities

• Design, develop, and maintain scalable full-stack applications using React.js, ASP.NET Core, and C#.
• Build secure RESTful APIs and microservices for enterprise-scale operations.
• Design end-to-end workflows including approval, renewal, and compliance monitoring.
• Develop reusable frontend components and maintainable backend services.
• Modernize legacy applications by migrating to microservices architecture.
• Mentor junior developers, conduct code reviews, and promote engineering best practices.
• Apply AI-assisted tooling, SDD, and TDD to improve quality and productivity.

Skills

Leadership

Agile/Scrum

Mentoring

Technical architecture

Problem solving

Tools

React.js

ASP.NET Core

C#

Microservices

REST APIs

SQL Server

AWS

Docker

Claude Code

Job description

TecheMerge Solutions Pte. Ltd. is seeking an experienced Senior Full Stack .NET Architect to design, develop, and maintain scalable enterprise applications using React.js, ASP.NET Core, C#, and microservices.

The ideal candidate will lead technical delivery, mentor engineers, build secure APIs, modernize legacy systems, and collaborate with cross-functional Agile teams. Experience with AI-assisted tools, SDD, and TDD is highly desirable.