Senior .NET Developer

Talent; Sydney; Hybrid; AUD 140,000 - 180,000; Full time

Job summary

Talent is seeking an experienced Senior .NET Developer to join an enterprise environment in Sydney. This hands-on role focuses on building scalable APIs, integrating platforms and delivering new capabilities within a complex tech landscape.

You will design, develop and enhance applications using C# and .NET, build RESTful APIs and microservices, and leverage AWS services. Strong SQL Server skills and agile collaboration are essential for success.

Qualifications

• Strong commercial experience with C# / .NET development.
• Proven experience designing and integrating REST APIs and microservices.
• Hands‑on experience with AWS cloud services.
• Strong SQL Server development and optimisation skills.
• Experience working within large, complex enterprise environments, particularly across established applications, service domains and API ecosystems.
• Strong understanding of software engineering principles, design patterns and Agile delivery.
• Excellent communication skills and ability to collaborate across technical and business teams.

Responsibilities

• Design, develop and enhance applications and APIs using C# and .NET.
• Build and integrate RESTful APIs and microservices across existing enterprise platforms.
• Develop cloud-native solutions leveraging AWS services.
• Work with SQL Server for database integration, performance and optimisation.
• Collaborate with architects, product owners and engineering teams to deliver business solutions.
• Contribute to technical design, code reviews, troubleshooting and continuous improvement.

Skills

C# / .NET

REST APIs

Microservices

AWS

SQL Server

Enterprise environments

Agile delivery

Communication

Tools

AWS

SQL Server

Job description

• 12-month Contract
• Sydney CBD – Hybrid 3 days on-site
• Opportunity of converting to permanent

We are seeking an experienced Senior .NET Developer to join a large enterprise environment, working on the development, enhancement and modernisation of business-critical applications and services.

This is a hands‑on engineering role focused on building scalable APIs, integrating existing platforms and delivering new capabilities within a complex enterprise technology landscape.

Key Responsibilities

• Design, develop and enhance applications and APIs using C# and .NET.
• Build and integrate RESTful APIs and microservices across existing enterprise platforms.
• Develop cloud-native solutions leveraging AWS services.
• Work with SQL Server for database integration, performance and optimisation.
• Collaborate with architects, product owners and engineering teams to deliver business solutions.
• Contribute to technical design, code reviews, troubleshooting and continuous improvement.

Skills & Experience

• Strong commercial experience with C# / .NET development.
• Proven experience designing and integrating REST APIs and microservices.
• Hands‑on experience with AWS cloud services.
• Strong SQL Server development and optimisation skills.
• Experience working within large, complex enterprise environments, particularly across established applications, service domains and API ecosystems.
• Strong understanding of software engineering principles, design patterns and Agile delivery.
• Excellent communication skills and ability to collaborate across technical and business teams.

Must have

• 8+ years professional experience
• Banking/Financial Services background
• Australian Citizenship or Permanent Residency

An opportunity to work within a mature enterprise technology environment, contributing to the evolution of established platforms while delivering modern, scalable solutions.

You’ll work alongside experienced engineering teams on complex integration challenges, platform enhancements and ongoing technology modernisation.