NET / C# Full Stack Developer (Mid–Senior)

Borger Crane Hire & Rigging Services; Blacktown City Council; On-site; AUD 110,000 - 160,000; Full time

Job summary

Unknown Company in Australia is seeking a mid-senior .NET / C# Full Stack Developer to join our technology team on a greenfields build, focusing on high-quality code and AI-assisted development workflows. You will implement RESTful APIs, data access layers with PostgreSQL, and enterprise-grade services, while reviewing AI-generated code for correctness, security, and performance.

Work in a modern environment with CI/CD in GitHub Enterprise Cloud, collaborate with architects and business

Qualifications

• 3–7 years of professional .NET/C# development delivering production-grade systems.
• Full-stack .NET development including APIs, business logic, and data access.
• Experience with EF Core and PostgreSQL relational databases.
• Strong RESTful API design and integration experience.
• Automated testing with xUnit or NUnit and a test-driven mindset.
• CI/CD pipelines, preferably GitHub Enterprise Cloud.
• Experience in AI-assisted development environments and code review.

Responsibilities

• Develop high-quality .NET/C# applications following clean architecture.
• Implement data access layers using EF Core against PostgreSQL.
• Build and integrate RESTful APIs as part of the enterprise system.
• Review AI-generated code for correctness, security, and performance.
• Write and maintain automated tests with xUnit/NUnit.
• Work within GitHub Enterprise Cloud CI/CD pipelines with quality gates.
• Collaborate with the architect, BA, and fellow developers to meet requirements.
• Maintain consistent coding standards across the greenfields codebase.

Skills

C# development

Full-stack .NET

EF Core

PostgreSQL

REST APIs

Automated tests

CI/CD

GitHub

AI-assisted

MVVM

WPF

Job description

NET / C# Full Stack Developer (Mid-Senior)

We are an enterprise organisation seeking an experienced .NET / C# 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 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)

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 using xUnit or NUnit, upholding a strong test culture throughout the project

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

Must Have

3-7 years of professional .NET / C# development experience delivering production-grade systems

Strong experience with full-stack .NET development - APIs, business logic, and data access layers

Proficiency with Entity Framework Core and relational database development (PostgreSQL preferred)

Solid RESTful API design and integration experience

Demonstrated experience with automated testing - xUnit, NUnit, or equivalent - 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

MVVM pattern knowledge and Windows desktop development experience

Familiarity with .NET MAUI, WPF, or other cross-platform / desktop frameworks

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

Collaborative 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.