Full Stack Software Engineer (.NET & React)

C9; Manila; Remote; PHP 900,000 - 1,300,000; Part time

Job summary

C9 is seeking a hands-on Full Stack Software Engineer specializing in .NET and React to design, build, and maintain scalable software for our client and internal platforms. You will work in an Agile team, delivering production-grade solutions and contributing to architecture discussions.

This remote-first role aligns to Australian business hours (AEST) with potential for full-time, offering exposure to Azure Cloud environments and modern DevOps practices in a collaborative, delivery-focused

Qualifications

• 5+ years as full-stack .NET (C#) and React engineer.
• Experience with CQRS and SOLID design patterns.
• Hands-on with production systems and relational databases (SQL Server, MySQL, PostgreSQL).

Responsibilities

• Design, build, and maintain C#/.NET backend services and React front-end applications.
• Build CI/CD pipelines using Azure DevOps.
• Collaborate with engineers, tech leads, testers, and delivery managers.
• Work in Agile/Scrum delivery environments and participate in planning and stand-ups.
• Write clear, maintainable code for long-term support.

Skills

C#/.NET

React

CQRS

SQL databases

Tools

Azure DevOps

Git

Jira

Job description

Full Stack Software Engineer (.NET & React)

Full Stack Software Engineer (.NET & React)

Location: Philippines
Working Model: Remote-first, aligned to Australian business hours (AEST)
Employment Type: Casual / Part-Time with potential for Full Time

About the Role

C9 is looking for a hands-on Full Stack Software Engineer (.NET & React) to build, enhance, and maintain high-quality software solutions across our client and internal platforms.

You will work as part of a delivery-focused Agile team, designing and implementing scalable, maintainable solutions using modern Microsoft technologies and clean architectural patterns. This is a practical engineering role, suited to someone who enjoys owning outcomes, contributing to architecture discussions, and delivering production-grade software

What You’ll Do

• Design, build, and maintain C#/.NET backend services and React front-end applications.
• Implement solutions using Clean Architecture principles, including CQRS and SOLID design practices.
• Collaborate closely with other engineers, technical leads, testers, and delivery managers.
• Build and maintain CI/CD pipelines using Azure DevOps.
• Provision and work with infrastructure across Azure, AWS, and Google Cloud environments.
• Troubleshoot, debug, optimise, and enhance existing systems.
• Participate in code reviews and architectural discussions, contributing to technical standards and shared patterns.
• Work within Agile Scrum teams, actively participating in planning, stand-ups, reviews, and retrospectives.
• Produce clear, maintainable, well-documented code suitable for long-term support.

What We’re Looking For

Core Engineering Experience

5+ years of experience as a full stack software engineer using .NET (C#) and React.

Strong practical understanding of:

• CQRS
• Proven experience working with relational databases (SQL Server, MySQL, PostgreSQL).
• Hands-on experience building and supporting production systems.

Delivery & Ways of Working

• Experience working in Agile/Scrum delivery environments.
• Familiarity with Git, Jira (or equivalent), and modern development workflows.
• Comfortable working remotely with distributed teams while remaining accountable for outcomes.
• Strong debugging, performance optimisation, and problem‑solving capability.

Personal Attributes

• Proactive, self‑directed, and delivery‑focused.
• Strong attention to detail with a pragmatic approach under pressure.
• Able to explain technical decisions clearly to teammates and non‑technical stakeholders.
• Enjoys working in collaborative, outcome‑oriented engineering teams

Bonus (Nice to Have)

• Experience in consulting or multi‑client delivery environments.

Exposure to:

• Azure DevOps advanced pipelines
• Integration-heavy or API-first systems
• Prior experience working with Australian or international clients.

Why Join C9

• Work on real‑world systems, not throwaway code.
• Exposure to modern software, cloud, integration, and data platforms.
• Strong engineering culture with a focus on code quality and maintainability.
• Long‑term growth opportunities as C9 continues to scale delivery capability.
• Flexibility to start part-time with a clear path to full-time for the right engineer