Mid-Level .NET & React/Claude Developer

FinXL IT Professional Services; Melbourne; On-site; AUD 90,000 - 130,000; Full time

Job summary

FinXL IT Professional Services seeks a Mid-level .NET & React Developer to join a major federal government financial regulator in Melbourne. You will design, develop, and maintain secure web apps, APIs, and services, delivering end-to-end features and aligning with DevOps, accessibility, and security standards.

The role requires 5+ years of production web app experience with C#, .NET/ASP.NET Core, and React.

Qualifications

• Minimum 5+ years of commercial software development experience delivering production web applications.
• Proven experience with C#, .NET/ASP.NET Core, React and REST APIs to independently deliver end-to-end features.
• Experience using Claude Code for development, analysis, debugging, and testing, and validating AI-generated solutions.

Responsibilities

• Develop, test, and maintain secure, scalable web applications using C#/.NET and React per designs and standards.
• Build and integrate REST APIs, backend services, and reusable front-end components with end-to-end delivery ownership.
• Translate requirements into working software, collaborating with senior developers and technical leads as needed.
• Utilise Claude Code to accelerate development, debugging, refactoring, testing, and documentation.
• Review AI-generated code for accuracy, security, and adherence to enterprise standards.
• Write unit and automated tests; participate in peer reviews; use CI/CD and DevOps practices to deploy changes.
• Ensure functionality complies with WCAG, security, privacy, and coding standards.
• Investigate defects and production issues; escalate complex problems when required.
• Create and maintain technical documentation and contribute to process improvements.

Skills

C#

ASP.NET Core

React

REST APIs

Git

CI/CD

DevOps

Agile

Automated testing

Unit testing

Education

Formal tertiary qualification in IT/Software Engineering/CS

Tools

Claude Code

Job description

FinXL IT Professional Services is a leading IT and business consultancy that partners with top-tier clients to bridge the gap between business needs and creative, digital capabilities. Since 2003, we've been delivering high-value solutions across financial services, telecommunications, government, retail, and enterprise sectors.

We are seeking an experienced Mid-level .NET & React Developer to join our client-a major federal government financial regulator dedicated to ensuring a fair, strong, and efficient financial system. Assigned to a large-scale transformation program within the Digital Applications team, you will design, develop, and maintain secure, scalable web applications and digital services. In this role, you will independently deliver end-to-end features, apply modern DevOps practices, and leverage AI-assisted development tools such as Claude Code to produce high-quality, maintainable software.

Key Responsibilities

• Develop, test, and maintain secure, scalable web applications using C#/.NET and React in accordance with established designs and development standards.
• Build and integrate REST APIs, backend services, and reusable front-end components, taking ownership of end-to-end feature delivery.
• Translate business and technical requirements into working software, collaborating with senior developers and technical leads as required.
• Utilise Claude Code to accelerate code analysis, feature implementation, debugging, refactoring, testing, and technical documentation.
• Critically review and validate AI-generated code to ensure accuracy, maintainability, security, and strict alignment with enterprise development standards.
• Write unit and automated tests, participate in peer code reviews, and utilise CI/CD and DevOps practices to build, test, and deploy application changes.
• Ensure all delivered functionality complies with WCAG accessibility, security, privacy, and coding standards.
• Investigate and resolve application defects, integration issues, and production support queries, escalating complex problems where appropriate.
• Create and maintain technical documentation while contributing to the continuous improvement of applications, development practices, and team processes.

Key Requirements

• Minimum of 5+ years of commercial software development experience delivering production web applications.
• Strong hands-on experience with C#, .NET / ASP.NET Core, React, and REST APIs, with a proven ability to independently deliver end-to-end features.
• Practical experience using Claude Code independently for development, analysis, debugging, refactoring, and testing, paired with the ability to validate generated solutions.
• Good knowledge of software design principles and patterns, with the ability to apply them independently to technical solutions.
• Demonstrated experience working in Agile teams, contributing to sprint planning, estimation, backlog refinement, and delivery.
• Strong proficiency with Git, peer code reviews, automated testing, CI/CD pipelines, and modern DevOps practices.
• Strong analytical, problem-solving, and communication skills, with the ability to work independently with limited supervision and clearly convey technical details to business stakeholders.
• Australian Citizenship is mandatory, along with the ability to undergo and pass a Baseline Security Clearance and suitability assessment.
• Formal tertiary qualification in Information Technology, Software Engineering, Computer Science, or a related discipline.
• Prior experience working within a federal government agency, regulatory body, or large financial services transformation program.

This role is open to Australian Citizens in Melbourne only due to security clearance requirements.