Senior Full-Stack Engineer (React + .NET) - Remote AU

C9; Manila; On-site; PHP 1,600,000 - 2,000,000; Full time

Job summary

C9 Pty in the Philippines is seeking a Senior Full Stack Developer to design, build and maintain scalable software within the C9 ecosystem. You will work in an Agile team delivering features with .NET (C#) and React, following Clean Architecture.

Remote-first with Australian business hours and distributed collaboration are essential. You will implement CQRS, manage relational databases, and contribute to CI/CD via Azure DevOps and Octopus Deploy, plus Terraform and Kubernetes for infra.

Qualifications

• 5+ years as a full stack software engineer using .NET (C#) and React
• Proven experience with CQRS and Clean Architecture
• Strong background in relational databases (SQL Server, MySQL, PostgreSQL)
• Hands-on experience building and supporting production systems
• Experience in Agile/Scrum environments and modern dev workflows

Responsibilities

• Develop and maintain C# backend and React frontend components
• Implement CQRS and Clean Architecture principles
• Collaborate with cross-functional teams to design and ship features
• Manage CI/CD pipelines using Azure DevOps and Octopus Deploy
• Provision and manage infrastructure with Terraform and Kubernetes
• Troubleshoot and optimise existing systems
• Contribute to architectural discussions and code reviews

Skills

React

NET C#

CQRS

SQL Databases

Agile/Scrum

Git/Jira

Remote collaboration

Tools

Azure DevOps

Octopus Deploy

Terraform

Kubernetes

Job description

C9 Pty in the Philippines is seeking a Senior Full Stack Developer to design, build and maintain scalable software within the C9 ecosystem. You will work in an Agile team delivering features with .NET (C#) and React, following Clean Architecture.

Remote-first with Australian business hours and distributed collaboration are essential. You will implement CQRS, manage relational databases, and contribute to CI/CD via Azure DevOps and Octopus Deploy, plus Terraform and Kubernetes for infra.