Full-Stack Application Engineer – C#/NET & React/AWS

U3 INFOTECH PTE. LTD.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

U3 INFOTECH PTE. LTD. is seeking a senior software engineer with a strong full stack background to help design and deliver scalable applications in a fast-paced environment.

You will work with C#, .NET, React, JavaScript/TypeScript, HTML/CSS, and AWS cloud services, ensuring clean code, tests, and robust architectures. The role emphasizes collaboration across technical and non-technical teams and agile practices.

Qualifications

• 5+ years of professional software development experience with full stack background.
• Strong experience in C# and .NET.
• Hands-on React experience with JavaScript/TypeScript, HTML and CSS.
• Experience with Cloud platforms, preferably AWS (EC2, Lambda, ECS/EKS, S3, RDS, API Gateway, SQS/SNS, CloudWatch).
• Strong SQL skills with SQL Server, PostgreSQL, or Oracle.
• Commitment to clean code with unit and integration testing.
• Fast learner with passion for new tech.
• Strong problem-solving and attention to detail.
• Clear communication with both technical and non-technical colleagues.
• Good written and verbal communication.
• Agile team player, adaptable.

Skills

Full stack

C#

React

JavaScript/TypeScript

HTML/CSS

AWS

SQL

Clean code

Communication

Agile

Testing

Tools

AWS

EC2

Lambda

ECS/EKS

S3

RDS

API Gateway

SQS/SNS

CloudWatch

Job description

U3 INFOTECH PTE. LTD. is seeking a senior software engineer with a strong full stack background to help design and deliver scalable applications in a fast-paced environment.

You will work with C#, .NET, React, JavaScript/TypeScript, HTML/CSS, and AWS cloud services, ensuring clean code, tests, and robust architectures. The role emphasizes collaboration across technical and non-technical teams and agile practices.