Senior .Net Developer

Sestra People Pty Ltd; Melbourne; Hybrid; AUD 166,000 - 221,000; Full time

Benefits offered by this job

12-month daily rate contract

Extension potential

Exposure to Azure & AWS

Collaborative engineering culture

Major cloud transformation project

Job summary

Sestra People Pty Ltd is seeking a Senior .NET Engineer on a 12-month daily rate contract based in Melbourne. The role focuses on building scalable, secure enterprise applications within a hybrid cloud environment, leveraging Azure and AWS as part of a broader multi-cloud strategy.

You will design, develop, and enhance applications using C#, .NET Core, REST APIs, and SQL Server, while collaborating with architects, product owners, and cloud engineers to deliver high-quality solutions.

Qualifications

• 5+ years of .NET development experience.
• Minimum 3 years of contract experience within enterprise environments.
• Strong cloud experience across Azure and AWS in a hybrid cloud setup.
• Experience with RESTful APIs and SQL Server.
• Experience working in Agile delivery teams.
• Excellent communication and stakeholder management.

Responsibilities

• Design, develop, and enhance enterprise applications using the Microsoft stack.
• Build and maintain REST APIs and backend services.
• Develop cloud-native solutions across Azure and AWS environments.
• Collaborate with stakeholders to deliver high-quality solutions.
• Contribute to solution design, architecture, and cloud migration.

Skills

C#

NET Core / .NET 6+

RESTful APIs

SQL Server

Azure & AWS

Agile

Communication

Tools

Terraform

Docker

Azure DevOps

CloudFormation

Job description

Our client is a leading financial services organisation based in Melbourne CBD, currently undertaking a significant technology transformation program. With a strong focus on modern engineering practices, cloud technologies, and digital innovation, they are seeking an experienced Senior .NET Engineer to join their high-performing technology team.

The Opportunity

This is an exciting 12-month daily rate contract for a hands‑on Senior .NET Engineer who enjoys building scalable, secure, and high‑performing enterprise applications. You will work on business‑critical platforms and collaborate closely with architects, product owners, cloud engineers, and engineering teams to deliver innovative solutions across a hybrid cloud environment.

The ideal candidate will bring a strong technical background alongside proven experience working in contract roles, allowing them to quickly adapt, deliver value, and operate effectively within dynamic enterprise environments. Experience working across both Azure and AWS environments is highly valued, as the organisation continues to evolve its multi‑cloud strategy.

Key Responsibilities

Design, develop, and enhance enterprise applications using the Microsoft technology stack.

Build and maintain REST APIs and backend services.

Develop cloud‑native solutions across Azure and AWS environments.

Collaborate closely with business and technical stakeholders to deliver high‑quality solutions.

Contribute to solution design, architecture, and cloud migration initiatives.

Drive engineering best practices through code reviews, testing, and continuous improvement.

Troubleshoot and resolve complex technical issues across application and cloud platforms.

Mentor developers and contribute to a collaborative engineering culture.

Participate in Agile ceremonies and delivery activities.

Skills & Experience

5+ years of .NET development experience.

Minimum 3 years of contract experience within enterprise environments.

Strong expertise in:

C#

.NET Core / .NET 6+

RESTful APIs

SQL Server

Strong cloud experience across Azure and AWS, with the ability to design, deploy and support applications in a hybrid cloud environment.

Experience building and supporting enterprise‑scale applications.

Strong understanding of software design patterns and modern architecture principles.

Experience working within Agile delivery teams.

Excellent communication and stakeholder management skills.

Highly Desirable

Experience with Azure services such as App Services, Functions, AKS, Service Bus, Azure SQL, Key Vault and Azure DevOps.

Experience with AWS services such as ECS, EKS, Lambda, API Gateway, S3, RDS and CloudWatch.

Experience designing and supporting multi‑cloud or hybrid cloud solutions.

Azure DevOps and CI/CD pipeline experience.

Infrastructure as Code experience using Terraform, Bicep or CloudFormation.

Docker and containerisation experience.

Front‑end experience with React or Angular.

Previous experience within financial services, banking, insurance, wealth management or fintech.

Experience working in highly regulated environments.

What's on Offer?

• 12-month daily rate contract with strong extension potential.
• Opportunity to work on major cloud transformation and modernisation initiatives.
• Exposure to both Azure and AWS environments.
• Collaborative and delivery‑focused engineering culture.
• Competitive daily rate.