Senior .Net Developer – Singapore

About the role

We are seeking an experienced Senior .Net Developer to join our Singapore office, building and maintaining enterprise‑level backend services.

Key responsibilities

• Design, develop and maintain RESTful APIs and backend services using .NET 8 and ASP.NET Core.
• Work with PostgreSQL via Npgsql/Entity Framework to create schemas and efficient queries.
• Implement authentication and authorization flows (JWT, Windows/Negotiate, LDAP/Active Directory).
• Integrate services with third‑party and enterprise systems such as ITSM platforms.
• Containerize applications with Docker and support CI/CD pipelines (Jenkins, GitLab CI).
• Write unit and integration tests, conduct code reviews and enforce quality standards (SonarQube).
• Troubleshoot production issues using structured logging (log4net) and observability practices.

Required profile

• 5+ years of professional experience building backend services in C#/.NET (ASP.NET Core preferred).
• Strong understanding of REST API design, authentication/authorization patterns and secure coding.
• Experience with relational databases (PostgreSQL, SQL Server) and ORMs (Entity Framework).
• Proficiency with containerisation (Docker) and CI/CD pipelines.
• Excellent debugging, problem‑solving and communication skills.

Required skills

• .NET, C#, ASP.NET Core.NET 8
• RESTful API development
• PostgreSQL, Npgsql, Entity Framework
• JWT, Windows/Negotiate authentication, LDAP, Active Directory
• Docker, Jenkins, GitLab CI
• Git, SonarQube, log4net
• React, TypeScript
• Python, Ansible Automation Platform (optional)