Junior Software Developer (.NET)

Talent Search Recruitment Consultant; Jakarta Pusat; On-site; IDR 167,400,000 - 290,160,000; Full time

Job summary

Our client in the telecommunications and network infrastructure industry is seeking a Software Developer (.NET) to join their technology team. You will develop, maintain, and enhance web applications using C#, .NET Core, ASP.NET Core, and SQL Server, working across backend and UI layers where required to deliver reliable, scalable solutions.

The ideal candidate has 2+ years of hands-on experience with C#, ASP.NET Core, EF Core, REST APIs, and Git, plus strong OOP and problem-solving skills.

Qualifications

• 2+ years of hands-on experience developing web applications using C# and ASP.NET.
• Strong understanding of object-oriented programming (OOP) and the ability to explain design decisions.
• Hands-on experience with .NET Core / .NET 6+ and familiarity with .NET Framework codebases.
• Strong knowledge of ASP.NET Core, MVC, and Web API.
• Good experience with SQL Server, including joins, stored procedures, indexes, and query optimization.
• Hands-on experience with Entity Framework / EF Core in a production environment.
• Experience building and consuming REST APIs, including JSON handling and error management.
• Working knowledge of JavaScript and jQuery, particularly when working with existing front-end code.
• Experience using Git, including branching, pull requests, and resolving merge conflicts.
• Experience writing unit tests using xUnit, NUnit, or MSTest.

Responsibilities

• Design, develop, test, and maintain web applications using C#, .NET, and ASP.NET Core.
• Build and maintain backend services and REST APIs, including integration with other systems.
• Develop and maintain UI components where required using JavaScript and jQuery.
• Work with SQL Server to develop queries, stored procedures, database changes, and performance improvements.
• Use Entity Framework / EF Core for data access and application development.
• Investigate, troubleshoot, and resolve application and production issues, including identifying root causes.
• Participate in code reviews and contribute to maintaining coding standards and best practices.
• Write and maintain unit tests to ensure code quality and reliability.
• Participate in Agile development activities, including daily stand-ups, sprint planning, estimation, retrospectives, and other team discussions.
• Collaborate with team members to understand requirements, clarify technical issues, and deliver solutions within agreed timelines.
• Contribute to continuous improvements in application performance, development processes, and overall system quality.

Skills

C#

ASP.NET

OOP

REST APIs

JavaScript

jQuery

Git

Unit testing

Agile

Debugging

Tools

SQL Server

EF Core

MVC

Web API

Job description

About the Company

Our client is a growing company in the telecommunications and network infrastructure industry, providing technology-driven solutions that support connectivity and digital infrastructure. As the business continues to grow, they are looking for a Software Developer (.NET) to join their technology team and contribute to the development and enhancement of their applications and systems.

About the Role

As a Software Developer (.NET), you will be responsible for developing, maintaining, and improving web-based applications using modern Microsoft technologies. You will work across the backend and, where required, the UI layer, collaborating with other developers and stakeholders to deliver reliable, scalable, and well-tested solutions.

Key Responsibilities

• Design, develop, test, and maintain web applications using C#, .NET, and ASP.NET Core.


• Build and maintain backend services and REST APIs, including integration with other systems.


• Develop and maintain UI components where required using JavaScript and jQuery.


• Work with SQL Server to develop queries, stored procedures, database changes, and performance improvements.


• Use Entity Framework / EF Core for data access and application development.


• Investigate, troubleshoot, and resolve application and production issues, including identifying root causes.


• Participate in code reviews and contribute to maintaining coding standards and best practices.


• Write and maintain unit tests to ensure code quality and reliability.


• Participate in Agile development activities, including daily stand-ups, sprint planning, estimation, retrospectives, and other team discussions.


• Collaborate with team members to understand requirements, clarify technical issues, and deliver solutions within agreed timelines.


• Contribute to continuous improvements in application performance, development processes, and overall system quality.

Requirements

• 2+ years of hands-on experience developing web applications using C# and ASP.NET.


• Strong understanding of object-oriented programming (OOP) and the ability to explain technical and design decisions.


• Hands-on experience with .NET Core / .NET 6+ and familiarity with .NET Framework codebases.


• Strong knowledge of ASP.NET Core, MVC, and Web API.


• Good experience with SQL Server, including joins, stored procedures, indexes, and query optimization.


• Hands-on experience with Entity Framework / EF Core in a production environment.


• Experience building and consuming REST APIs, including JSON handling and error management.


• Working knowledge of JavaScript and jQuery, particularly when working with existing front-end code.


• Experience using Git, including branching, pull requests, and resolving merge conflicts.


• Experience writing unit tests using xUnit, NUnit, or MSTest.


• Strong debugging and problem-solving skills, with the ability to systematically identify and isolate issues.


• Good communication skills and the ability to work effectively within an Agile development environment.

Nice to Have

• Experience with Azure or AWS, particularly App Service, SQL, Storage, or Blob services.


• Familiarity with CI/CD pipelines, such as Azure DevOps or GitHub Actions.


• Exposure to front-end frameworks such as React, Angular, or Blazor.


• Experience with logging and monitoring tools such as Serilog or Application Insights.


• Understanding of dependency injection, async/await, and caching.


• Experience using AI-assisted development tools, such as GitHub Copilot or Claude Code.


• Exposure to SSRS, Power BI, background jobs, or data migration projects.

What You'll Get

• Opportunity to work with a modern .NET technology stack rather than focusing solely on legacy maintenance.


• Exposure to real-world technology solutions within a growing telecommunications and network infrastructure business.


• Mentorship and code reviews from experienced developers.


• Opportunities to take ownership of larger modules and grow your technical capabilities.


• A collaborative Agile working environment with opportunities to contribute ideas and improvements.