Senior Full Stack Developer C#

PT. LOTTE INNOVATE INDONESIA; Cilegon; On-site; IDR 200.000.000 - 300.000.000; Full time

Job summary

A technology company in Cilegon is seeking a Software Developer with strong expertise in C# and .NET Core. You will be responsible for developing and maintaining web applications, designing system architecture, and collaborating with frontend developers. Ideal candidates have 2-3 years of experience and proficiency in RESTful APIs, SQL databases, and Windows services. Competitive salary and opportunities for growth are offered.

Qualifications

• Minimum 2-3 years of experience in software development using C# / .NET.
• Strong understanding of C#, ASP.NET Core, Entity Framework, and RESTful API development.
• Experience in database programming using SQL Server / PostgreSQL / MySQL.
• Familiar with frontend development using React.js / Blazor / Three.js.
• Experience with Windows Job / Task Scheduler management.
• Able to architect, develop, and deploy applications independently using IIS.
• Proficient in Visual Studio and Git-based version control.
• Strong self-management and analytical skills.

Responsibilities

• Write, develop, and maintain web application code using C# (.NET Core).
• Gather and analyze requirements, then design system architecture.
• Maintain and enhance existing applications, including bug fixing and performance optimization.
• Design and develop RESTful APIs, database structures, and SQL Jobs.
• Implement and manage Windows Jobs for automated processes.
• Deploy and configure applications independently on IIS.
• Identify and resolve application bottlenecks.

Skills

C# / .NET

ASP.NET Core

Entity Framework

RESTful API development

SQL Server / PostgreSQL / MySQL

React.js / Blazor / Three.js

Windows Job / Task Scheduler

Visual Studio

Git

Self-management

Job description

Write, develop, and maintain web application code using C# (.NET Core) and modern frontend frameworks (React.js / Three.js).

Gather and analyze requirements, then design system architecture and workflow for new applications.

Maintain and enhance existing applications, including bug fixing, performance optimization, and feature improvements.

Design and develop RESTful APIs, database structures, Stored Procedures, and SQL Jobs.

Implement and manage Windows Jobs / Windows Services for automated or scheduled background processes.

Deploy and configure applications independently on IIS, ensuring stable production operation.

Identify and resolve application bottlenecks, ensuring overall system performance and reliability.

Collaborate closely with Frontend Developers to integrate and deliver high-quality solutions.

Requirements:

Minimum 2–3 years of experience in software development using C# / .NET.

Strong understanding of C#, ASP.NET Core, Entity Framework, and RESTful API development.

Experience in database programming (Stored Procedure, SQL Job, query optimization) using SQL Server / PostgreSQL / MySQL.

Familiar with frontend development using React.js / Blazor / Three.js.

Experience with Windows Job / Task Scheduler / Windows Service setup and management.

Able to architect, develop, and deploy applications independently using IIS.

Proficient in Visual Studio and Git-based version control.

Strong self-management, analytical skills, and fast learning ability.

Able to work independently and collaborate effectively with the frontend team.

Java experience is a plus.

Central Jakarta, Jakarta, ID