? Hiring: Senior Full Stack (.NET, AWS, React)

? Location: Sydney, NSW

? Work Mode : Contract

? Work Rights: Only candidates with valid Australian work rights should apply

We are looking for an experienced Senior Software Engineer to join a high-performing delivery team working on digital transformation, workflow automation, enterprise integrations and cloud-native applications.

This is a backend-focused full-stack role requiring robust hands-on expertise in .NET, AWS, Microservices, API development and event-driven integration, along with working experience in React.js.

? Key Skills

Backend & Full Stack

- 8+ years of software engineering experience
- .NET / .NET Core & C#
- React.js
- RESTful APIs & Microservices
- API design, integration patterns & distributed systems

☁️ AWS – Mandatory

- AWS Lambda
- API Gateway
- S3
- RDS
- DynamoDB

- ECS and/or EKS – Mandatory
- Cloud-native & event-driven architectures

? Integration & Messaging Experience with one or more:

- Kafka
- Amazon EventBridge




- Amazon SQS / SNS
- IBM MQ or equivalent

? Security & DevOps

- API authentication & authorization
- Enterprise integration security
- CI/CD pipelines
- Release & setting management
- Deployment automation & monitoring

?️ Databases

- SQL Server
- PostgreSQL
- Enterprise relational databases

⭐ Nice to Have

- Terraform
- AWS CloudFormation
- Workflow orchestration platforms
- Cloud modernization
- Large-scale enterprise transformation

⚠️ Only candidates with valid Australian work rights (Australian Citizen / Permanent Resident / valid Australian Work Visa) should apply.

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📌 Senior Full Stack Developer (.NET, AWS, React) | Sydney | Contract
🏢 Avigma Tech
📍 Sydney