Full Stack Engineer

XCELLINK PTE. LTD.; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

XCELLINK PTE. LTD. is seeking a Full Stack Engineer to design, develop, and maintain scalable web applications leveraging .NET backend and modern frontend frameworks.

You will build RESTful APIs, collaborate with QA and DevOps, and ensure secure, high-performance solutions across the stack. The role requires strong expertise in C#, ASP.NET Core, JavaScript/TypeScript, and cloud/DevOps practices, with experience in Azure, containers, and CI/CD pipelines.

Qualifications

• Degree or Diploma in Computer Science, Information Technology, Software Engineering, or related disciplines.
• Strong hands-on experience in C#, ASP.NET Core, .NET 8+.
• Experience building RESTful APIs and enterprise web applications.
• Proficiency in Entity Framework, LINQ, and dependency injection.
• Experience with Microsoft SQL Server and database design.
• Knowledge of authentication and authorization technologies such as OAuth2, OpenID Connect, and JWT.

Responsibilities

• Develop and maintain full-stack web applications using .NET and modern frontend technologies.
• Design, build, and support RESTful APIs, backend services, and integrations.
• Develop responsive and user-friendly interfaces using frameworks such as React, Angular, or Vue.
• Collaborate with business users, QA, and DevOps teams throughout the development lifecycle.
• Implement automated testing, CI/CD pipelines, and deployment processes.
• Troubleshoot issues and optimize application performance, security, and scalability.
• Follow Agile development practices and software engineering best practices.

Skills

C#

JavaScript/TypeScript

RESTful APIs

Agile development

Security & OWASP

Education

Degree or Diploma in Computer Science or related

Tools

ASP.NET Core

Entity Framework

SQL Server

OAuth2/OpenID Connect/JWT

React/Angular/Vue

HTML5/CSS3

Azure DevOps

Docker

Kubernetes

Job description

The Full Stack Engineer is responsible for designing, developing, and maintaining scalable, secure, and high-performance web applications. The role requires strong expertise in .NET backend development, modern frontend frameworks, cloud technologies, and DevOps practices.

Key Responsibilities

• Develop and maintain full-stack web applications using .NET and modern frontend technologies.
• Design, build, and support RESTful APIs, backend services, and integrations.
• Develop responsive and user-friendly interfaces using frameworks such as React, Angular, or Vue.
• Collaborate with business users, QA, and DevOps teams throughout the development lifecycle.
• Implement automated testing, CI/CD pipelines, and deployment processes.
• Troubleshoot issues and optimize application performance, security, and scalability.
• Follow Agile development practices and software engineering best practices.

Education

• Degree or Diploma in Computer Science, Information Technology, Software Engineering, or related disciplines.

Backend Development (Mandatory)

• Strong hands-on experience in C#, ASP.NET Core, .NET Framework, and/or .NET 8+.
• Experience building RESTful APIs and enterprise web applications.
• Proficiency in Entity Framework, LINQ, and dependency injection.
• Experience with Microsoft SQL Server and database design.
• Knowledge of authentication and authorization technologies such as OAuth2, OpenID Connect, and JWT.

Frontend Development

• Strong proficiency in JavaScript and TypeScript.
• Experience with React.js, Next.js, Angular, or Vue.js.
• Good understanding of HTML5, CSS3, responsive design, and UI frameworks such as Bootstrap, Material UI, or Tailwind CSS.

Cloud & DevOps

• Experience with Microsoft Azure services and cloud-native application development.
• Familiarity with Azure DevOps, GitHub Actions, GitLab CI, or Jenkins.
• Experience with Docker and Kubernetes is an advantage.

Additional Skills

• Knowledge of application security best practices and OWASP principles.
• Experience with automated testing and API testing tools.
• Familiarity with monitoring and observability tools is preferred.
• Exposure to microservices architecture and event-driven systems is an advantage.

Added Advantage

• Microsoft Azure certifications.
• Experience with Power Platform, OutSystems, or other low-code platforms.
• Experience integrating AI or Generative AI solutions into applications.