Full-Stack .NET Developer - Shipping Platform

United States Digital Space LLC; Singapore; On-site; SGD 97,995 - 132,582; Full time

Job summary

United States Digital Space LLC is seeking an experienced Full-Stack .NET Developer to maintain and enhance a ship management system. You will handle vessel certificates generation, billing workflows, and reporting, using ASP.NET Core Razor Pages on .NET 9.

You will work with PostgreSQL, EF Core, Identity, and RESTful APIs, delivering secure, well-documented code. Collaboration in an Agile/Scrum team and familiarity with QA/testing are essential.

Qualifications

• Experience in full-stack .NET development with ASP.NET Core Razor Pages or MVC.
• Strong knowledge of PostgreSQL and Entity Framework Core.
• Experience with authentication/authorization in ASP.NET Core Identity.
• RESTful API design and integration experience.
• Front-end: JavaScript, HTML5, CSS3, and jQuery; responsive design.
• PDF generation library experience (Rotativa, NReco) is a plus.
• Git with PR-based workflow and code reviews; Agile/Scrum environment.

Responsibilities

• Maintain and troubleshoot a production ASP.NET Core Razor Pages app built on .NET 9.
• Design and implement features including vessel registration workflows, certificates, invoicing and reporting.
• Work with PostgreSQL; write efficient queries and optimize performance.
• Write clean, maintainable code and conduct code reviews.
• Integrate with third-party APIs and external services.
• Implement security best practices and data protection standards.
• Create and maintain technical documentation for features and processes.

Skills

C#

NET Core/.NET 9

ASP.NET Core Razor Pages

PostgreSQL

Entity Framework Core

ASP.NET Core Identity

RESTful APIs

JavaScript

HTML5

CSS3

jQuery

PDF generation

Selenium

Git/GitFlow

Agile/Scrum

Tools

Visual Studio 2022

Job description

About the Role

We are seeking an experienced Full-Stack.NET Developer to maintain and enhance a web-based ship management system.This platform handles workflows including vessel certificates generation and billing operations.

Key Responsibilities

• Application Maintenance & Support : Maintain and troubleshoot a production ASP.NET Core Razor Pages application built on .NET 9


• Feature Development : Design and implement new features including enhancements to vessel registration workflows, certificate generation, invoicing, and reporting systems


• Database Management : Work with PostgreSQL databases, write efficient queries, and optimize database performance


• Code Quality : Write clean, maintainable code following established patterns and conduct code reviews


• System Integration : Integrate with third-party APIs and external services


• Security & Compliance : Implement security best practices and ensure data protection standards are met


• Documentation : Create and maintain technical documentation for features and system processes

Required Technical Skills

Backend:

• Strong proficiency in C# and .NET Core/.NET 9


• Experience with ASP.NET Core Razor Pages (preferred) or MVC


• Solid understanding of Entity Framework Core with PostgreSQL


• Knowledge of ASP.NET Core Identity and authentication/authorization


• RESTful API development and integration

Frontend:

• JavaScript,HTML5, CSS3


• jQuery and modern JavaScript frameworks


• Experience with responsive web design


• Understanding of PDF generation libraries (e.g., Rotativa, NReco)

Database:

• PostgreSQL database design and optimization


• Writing complex SQL queries and stored procedures


• Database migration strategies

DevOps & Tools:

• Git version control with branching strategies (GitFlow)

Professional Requirements

• Experience : Possesses experience in full-stack .NET development


• Problem-Solving : Strong analytical and debugging skills


• Communication : Clear written and verbal communication for documentation


• Agile Methodology : Experience working in Agile/Scrum environments


• Code Review : Comfortable with peer code reviews and following pull request workflows


• Independent Work : Ability to work autonomously and manage priorities effectively

Development Environment

• Framework : .NET 9 with ASP.NET Core Razor Pages


• Database : PostgreSQL with Entity Framework Core


• Version Control : Git with structured branching (dev staging main)


• IDE : Visual Studio 2022


• Workflow : Pull request-based development with code reviews


• Testing : Testing: Experience with xUnit for unit testing and Selenium for UI testing. Ability to expand test coverage for services and business logic

Salary

Salary: $8,000