Senior Software Engineer - AI-Driven .NET & Python

PT Indo Online Mitra Usaha (Vox Asia); Kota Bandung; On-site; IDR 200,000,000 - 320,000,000; Full time

Job summary

PT Indo Online Mitra Usaha (Vox Asia) is seeking a software engineer to design, build and evolve applications using C#, ASP.NET Core and Python, including LLM-based functionality. You will work across .NET and Python to deliver modern backend systems.

The ideal candidate has 4+ years of professional software development experience, strong C#/.NET, Python, REST APIs, and experience with EF Core, SQL and Git CI/CD. English fluency is required, and familiarity with AI-enabled workflows is a plus.

Qualifications

• 4+ years of professional software development experience.
• Strong professional experience with C# and ASP.NET Core.
• Practical development experience with Python.
• Strong understanding of REST APIs, dependency injection, SOLID principles, clean architecture, asynchronous programming, and distributed application design.
• Experience with Entity Framework Core, LINQ and SQL.
• Experience designing and integrating web APIs and external services.
• Good understanding of testing, debugging and production troubleshooting.
• Experience working with Git, CI/CD and modern development workflows.
• Strong written and spoken English.
• Practical experience building applications using LLMs is particularly desirable.

Responsibilities

• Design and develop scalable backend services using C# / ASP.NET Core.
• Develop supporting services and AI-related components in Python.
• Build and integrate LLM-powered chat and assistant functionality.
• Work with LLM APIs and frameworks
• Design APIs and integrations between .NET services, Python services and external platforms.
• Work with relational databases such as SQL Server/PostgreSQL and search technologies such as Elasticsearch.
• Use modern AI-assisted development tools effectively as part of the software development lifecycle.

Skills

C#

ASP.NET Core

Python

REST APIs

Dependency Injection

SOLID principles

Clean architecture

Asynchronous programming

Distributed systems

Entity Framework Core

LINQ

SQL

Git

CI/CD

Elasticsearch

GitHub Copilot

LLMs / AI APIs

Tools

Git

CI/CD pipelines

Elasticsearch

EF Core tooling

Azure OpenAI

OpenAI API

Anthropic API

Job description

PT Indo Online Mitra Usaha (Vox Asia) is seeking a software engineer to design, build and evolve applications using C#, ASP.NET Core and Python, including LLM-based functionality. You will work across .NET and Python to deliver modern backend systems.

The ideal candidate has 4+ years of professional software development experience, strong C#/.NET, Python, REST APIs, and experience with EF Core, SQL and Git CI/CD. English fluency is required, and familiarity with AI-enabled workflows is a plus.