Senior .NET & React/Claude Developer

FinXL IT Professional Services; Melbourne; On-site; AUD 150,000 - 190,000; Full time

Job summary

FinXL IT Professional Services is seeking a Senior .NET & React/Claude Developer to join a large federal government transformation program in Melbourne. You will lead a small development squad and deliver secure, scalable web applications, while championing Claude Code across the SDLC.

The role requires hands-on expertise in C#, .NET Core, React, REST APIs, and DevOps practices, plus the ability to review AI-generated code and mentor engineers.

Qualifications

• 7+ years of commercial software development with leadership experience.
• Advanced hands-on with C#, .NET Core, React and REST APIs.
• Hands-on Claude Code across the SDLC and review of AI-generated code.
• Formal IT/Software degree and Australian citizenship.

Responsibilities

• Develop, unit test, and deploy secure, scalable .NET and React apps with team leadership.
• Uplift Claude Code adoption across development, testing, and documentation.
• Establish AI-assisted development governance across the SDLC.
• Translate requirements into designs and implementation aligned with enterprise standards.
• Lead design reviews, code reviews, and establish reusable patterns.
• Ensure solutions comply with architecture, security, privacy, and WCAG standards.
• Resolve complex technical challenges and mentor engineers.
• Improve engineering practices and delivery processes through coaching.

Skills

Technical leadership

Agile delivery

Stakeholder communication

Problem solving

Mentoring

DevOps practices

Leadership

Education

IT/Software engineering degree

Tools

C#

.NET / ASP.NET Core

React

REST APIs

Claude Code

Git

CI/CD pipelines

Automated testing

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 Senior .NET & React/Claude 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 lead a small development squad in designing, building, and deploying secure, scalable web applications and digital services. In this role, you will champion modern DevOps and AI-assisted development practices (specifically leveraging Claude Code across the SDLC) while providing hands-on technical leadership and mentoring across the engineering team.

Key Responsibilities

• Develop, unit test, and deploy secure, maintainable, and scalable .NET and React applications while providing technical leadership and mentoring to a small development team.
• Drive and uplift the adoption and effective use of Claude Code across .NET and React development, testing, large-scale refactoring, and technical documentation.
• Establish effective AI-assisted software development practices and governance controls across the SDLC to ensure AI-generated code meets quality, security, and maintainability standards.
• Translate business and technical requirements into comprehensive solution designs, technical designs, and implementation approaches aligned with enterprise architecture standards.
• Lead technical design sessions, code reviews, and proofs of concept, establishing reusable patterns, components, and engineering best practices.
• Ensure all delivered solutions comply with architecture, WCAG accessibility, security, privacy, and coding standards.
• Lead the resolution of complex technical challenges, including application performance bottlenecks, system integrations, technical debt, and production incidents.
• Continuously improve engineering practices, tools, and delivery processes through coaching, knowledge transfer, and technical advice.

Key Requirements

• Minimum of 7+ years of commercial software development experience delivering complex, production-grade applications, backed by demonstrated technical leadership.
• Advanced hands-on experience with C#, .NET / ASP.NET Core, React, and REST APIs, including designing complex applications and system integrations.
• Advanced, practical experience using Claude Code across the SDLC (solution analysis, implementation, refactoring, debugging, and testing), paired with the ability to review and govern AI-generated code.
• Strong knowledge of software architecture and design principles, with proven experience defining solution designs, patterns, and technical approaches.
• Demonstrated experience leading Agile technical delivery, including sprint planning, estimation, risk management, and continuous improvement.
• Strong proficiency with code reviews, automated testing, Git, CI/CD pipelines, and modern DevOps practices.
• Exceptional analytical, problem-solving, and stakeholder communication skills, with the ability to translate complex technical details for 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.