.NET / React Full Stack Developer (Mid–Senior)
We are an enterprise organisation seeking an experienced .NET / React Full Stack Developer to join our technology team on an exciting greenfields build. Working from well-defined requirements provided by a dedicated architect and business analyst, you will focus purely on what you do best — writing high-quality code and ensuring the integrity of our AI-assisted development workflow.
This is a modern development environment where AI tooling is used extensively to accelerate delivery. Your role will be central to maintaining code quality, reviewing AI-generated output for correctness, security, and compliance, and ensuring the codebase remains clean, consistent, and production-grade.
You will work closely with a collaborative development team across a full .NET and React stack, building enterprise-grade applications backed by a robust PostgreSQL and Azure-hosted infrastructure.
Key Responsibilities
Develop high-quality .NET / C# applications following clean architecture principles (DAL, business logic, services)
Build responsive, component-based front-end applications using React
Implement data access layers using Entity Framework Core against PostgreSQL
Build and integrate RESTful APIs as part of the broader enterprise system
Review AI-generated code critically — assessing correctness, security, performance, and adherence to architectural standards
Write and maintain automated tests across the full stack, upholding a strong test culture throughout the codebase
Work within GitHub Enterprise Cloud CI/CD pipelines, ensuring code quality gates and deployment standards are met




Collaborate closely with fellow developers, the project architect, and business analyst to deliver against requirements
Maintain clear, consistent coding standards across a greenfields codebase
Required Skills & Experience
Must Have
5–15 years of professional .NET / C# development experience delivering production-grade systems
Strong experience with full-stack development — React front-ends, APIs, business logic, and data access layers
Solid hands-on experience with React, including hooks, component design, and state management
Proficiency with Entity Framework Core and relational database development (PostgreSQL preferred)
Solid RESTful API design and integration experience
Demonstrated experience with automated testing and a genuine commitment to test-driven culture
Experience with CI/CD pipelines, preferably GitHub Enterprise Cloud
Comfortable working in an AI-assisted development environment — reviewing, validating, and refining AI-generated code
Highly Regarded
Prior experience on greenfields enterprise builds
What We Offer
Permanent, full-time on-site role with long-term stability
Modern, AI-assisted development environment with cutting-edge tooling
Greenfields project — build something from the ground up, the right way
Cooperative team with a dedicated architect and BA — you focus on code, not meetings
Supportive workplace with opportunities for professional development
Work Rights:
To be considered for this role, you must be an Australian Citizen, Permanent Resident, or hold a valid work visa with full working rights. We are unable to offer visa sponsorship.
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📌 .Net / React Full Stack Developer (Mid–Senior) (Sydney)
🏢 Borger Crane Hire & Rigging Services
📍 Sydney