Fullstack .Net Azure Angular Developer

Sestra People; Sydney; Hybrid; AUD 234,000 - 247,000; Full time

Benefits offered by this job

Hybrid working

3 days in office per week

6-month contract

Daily rate $900-$950

Job summary

Sestra People is seeking an experienced Senior .NET Developer to join a high-performing team delivering enterprise-grade APIs and analytics platforms supporting pricing, risk, and market data services.

This contract role offers a 6-month initial term with hybrid working (3 days in the office) in Sydney, focusing on REST-based services and collaboration across .NET, Python, TypeScript, and Excel-based platforms.

Qualifications

• Strong commercial experience with C# and ASP.NET Core.
• Proven experience designing and building RESTful APIs.
• Solid understanding of dependency injection and modern software architecture principles.
• Experience with asynchronous and concurrent programming patterns.
• Strong testing background, including unit and integration testing.
• Experience working with PostgreSQL databases.
• Ability to work independently in an agile environment.

Responsibilities

• Design and develop versioned REST APIs using ASP.NET Core.
• Integrate pricing, market curve calibration, risk, scenario, and product engines.
• Design strongly-typed API contracts and persistent financial domain resources.
• Build and maintain integrations with PostgreSQL, reference data services, and external data sources.
• Develop background processing and data import services.
• Ensure compatibility with shared .NET Standard 2.0 libraries.
• Create and maintain unit, integration, API contract, and OpenAPI test suites.
• Implement observability solutions including tracing, metrics, diagnostics, and orchestration using .NET Aspire and OpenTelemetry.
• Collaborate with cross-functional teams across .NET, Python, TypeScript, and Excel.

Skills

C# and ASP.NET Core

RESTful APIs

Dependency injection

Asynchronous programming

Unit/integration testing

PostgreSQL

Agile

Tools

ASP.NET Core

PostgreSQL

Docker

Azure

OpenTelemetry

Job description

Senior .NET Developer (Financial Services)

6-Month Contract | $900-$950 per day | Hybrid Working (3 Days in Office)

We are seeking an experienced Senior .NET Developer to join a high-performing team delivering modern financial technology solutions. This is an exciting opportunity to work on enterprise-grade APIs and analytics platforms supporting sophisticated pricing, risk, and market data services.

This role will suit an engineer with strong backend development expertise, a passion for clean API design, and experience building scalable, high-performance systems within complex environments.

About the Role

As a Senior .NET Developer, you will be responsible for designing, developing, and maintaining modern REST-based services that underpin critical financial applications. You'll collaborate closely with engineers across .NET, TypeScript, Python, and Excel-based platforms to deliver robust and scalable solutions.

Key Responsibilities

• Design and develop versioned REST APIs using ASP.NET Core and .NET 10
• Integrate pricing, market curve calibration, risk, scenario, and product engines
• Design strongly-typed API contracts and persistent financial domain resources
• Build and maintain integrations with PostgreSQL, reference data services, and external data sources
• Develop background processing and data import services
• Ensure compatibility with shared .NET Standard 2.0 libraries
• Create and maintain unit, integration, API contract, and OpenAPI test suites
• Implement observability solutions including tracing, metrics, diagnostics, and orchestration using .NET Aspire and OpenTelemetry
• Collaborate with cross-functional teams developing solutions in .NET, Python, TypeScript, and Excel

Required Skills & Experience

• Strong commercial experience with C# and ASP.NET Core
• Proven experience designing and building RESTful APIs
• Solid understanding of dependency injection and modern software architecture principles
• Experience with asynchronous and concurrent programming patterns
• Strong testing background, including unit and integration testing
• Experience working with relational databases, particularly PostgreSQL
• Strong problem-solving skills and ability to work independently in an agile environment

Desirable Experience

• Financial markets or capital markets experience
• Knowledge of quantitative analytics and numerical methods
• Experience building distributed systems and microservices architectures
• Docker containerisation experience
• Azure cloud platform experience
• CI/CD pipeline implementation and automation
• Experience with observability platforms and application monitoring

What's on Offer?

• 6-month initial contract
• $900-$950 per day
• Hybrid working model with 3 days per week in the office
• Opportunity to work on sophisticated financial systems and modern technology stacks
• Collaborative, highly skilled engineering environment
• Potential for contract extension based on project requirements

If you're a strong .NET engineer looking to work on challenging financial technology projects using the latest Microsoft technologies, we'd love to hear from you.