Senior .NET Developer
Hydrogen Group — Australia · Posted ~22 hours ago
Senior
Contract
Skills
.NET
.NET Core
C#
Azure
Backend development
Event-driven architecture
REST APIs
Databases
SQL
NoSQL
Asynchronous systems
Software testing
REST
gRPC
Message brokers
Streaming platforms
CQRS
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Log in to add to target listSummary ✨ AI‑Generated
A fast-growing fintech organization is seeking a Senior .NET Developer for an initial six-month contract. The role focuses on building reliable and scalable backend services on Azure, developing event-driven systems and APIs, integrating SQL and NoSQL databases, and collaborating with frontend, DevOps and product teams.
Highlights
Initial six-month contract opportunity in fintech focused on complex, highly scaled Azure-hosted systems, backend engineering, resilient architecture, event-driven design, and cross-functional delivery.
Description
About the Role
We're currently looking for a Senior .Net Developer to undertake an initial 6 month contract for scale up, fintech in Sydney.
They are ideally looking for an experienced engineer with a strong background in application development on complex, scaled systems hosted on Azure.
You will work closely with cross-functional teams to deliver reliable, resilient, and maintainable solutions.
Key Responsibilities
Design, develop, and maintain backend services using .NET / .NET Core (C#)Build and support event-driven systems using message brokers and streaming platformsImplement asynchronous, decoupled communication patterns (e.g., publish/subscribe, event sourcing, CQRS where applicable)Develop and maintain RESTful APIs and/or gRPC servicesIntegrate with databases (SQL and NoSQL) and optimize data accessEnsure system reliability, scalability, and fault toleranceWrite clean, testable, and well-documented codeCollaborate with frontend developers, DevOps, and product teamsParticipate in code reviews and contribute to architectural decisionsMonitor, troubleshoot, and improve system performance in productionRequired Background:
Strong experience with C# and .NET / .NET CoreHands-on experience with event-driven architectureExperience with messaging and streaming technologies such as:Azure Service Bus, Event Grid, Event HubsRabbitMQ, Apache Kafka, or similarSolid understanding of asynchronous programming and concurrencyExperience building APIs using ASP.NET CoreStrong knowledge of relational databases (e.g., SQL Server, PostgreSQL)Familiarity with unit testing and integration testingUnderstanding of software design principles and patternsExperience with version control systems (e.g., Git)Preferred:
Experience with cloud platforms (Azure preferred, AWS/GCP acceptable)Knowledge of microservices architectureFamiliarity with Docker and container orchestration (Kubernetes)Experience with CI/CD pipelinesExposure to Domain-Driven Design (DDD)Monitoring and observability tools (Application Insights, Prometheus, Grafana, etc.)
Desired Skills and Experience
About the Role
We're currently looking for a Senior .Net Developer to undertake an initial 6 month contract for scale up, fintech in Sydney.
They are ideally looking for an experienced engineer with a strong background in application development on complex, scaled systems hosted on Azure.
You will work closely with cross-functional teams to deliver reliable, resilient, and maintainable solutions.
Key Responsibilities
* Design, develop, and maintain backend services using .NET / .NET Core (C#)
* Build and support event-driven systems using message brokers and streaming platforms
* Implement asynchronous, decoupled communication patterns (e.g., publish/subscribe, event sourcing, CQRS where applicable)
* Develop and maintain RESTful APIs and/or gRPC services
* Integrate with databases (SQL and NoSQL) and optimize data access
* Ensure system reliability, scalability, and fault tolerance
* Write clean, testable, and well-documented code
* Collaborate with frontend developers, DevOps, and product teams
* Participate in code reviews and contribute to architectural decisions
* Monitor, troubleshoot, and improve system performance in production
Required Background:
* Strong experience with C# and .NET / .NET Core
* Hands-on experience with event-driven architecture
* Experience with messaging and streaming technologies such as:
o Azure Service Bus, Event Grid, Event Hubs
o RabbitMQ, Apache Kafka, or similar
* Solid understanding of asynchronous programming and concurrency
* Experience building APIs using ASP.NET Core
* Strong knowledge of relational databases (e.g., SQL Server, PostgreSQL)
* Familiarity with unit testing and integration testing
* Understanding of software design principles and patterns
* Experience with version control systems (e.g., Git)
Preferred:
* Experience with cloud platforms (Azure preferred, AWS/GCP acceptable)
* Knowledge of microservices architecture
* Familiarity with Docker and container orchestration (Kubernetes)
* Experience with CI/CD pipelines
* Exposure to Domain-Driven Design (DDD)
* Monitoring and observability tools (Application Insights, Prometheus, Grafana, etc.)
...
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