Title:- Senior Full Stack Software Engineer (.NET, React, AWS)

Location:- Sydney

Duration:- 6 Months Extendable

Project Description:

We are seeking a highly experienced Senior Software Engineer to join a high-performing delivery team focused on digital transformation, workflow automation, enterprise integrations, and cloud-native application development. This is a hands-on engineering role requiring strong expertise in backend development using .NET and AWS, while also contributing to frontend development using React.

The successful candidate will operate between a Senior and Staff Engineer level, contributing to solution design, low-level design (LLD), implementation, deployment, and ongoing enhancement of enterprise-grade applications supporting government schemes, mortgage/home loan processing, and workflow automation initiatives.

Skills required:

- 8+ years of software engineering experience.
- Strong experience in enterprise Full Stack Development.
- Proven experience working in complex enterprise environments.
- Strong stakeholder engagement, communication, and collaboration skills.

-> Backend & Full Stack Technologies

Extensive hands-on experience with:

- .NET / .NET Core
- C#
- React.js
- RESTful APIs
- Microservices Architecture

Robust understanding of

- API design and development
- Integration patterns
- Service-oriented architectures
- Distributed systems

-> AWS Cloud Technologies

Proven experience building and deploying applications on AWS.

Hands-on experience with:

- AWS Lambda
- API Gateway
- Amazon S3
- Amazon RDS
- Amazon DynamoDB
- AWS ECS and/or EKS (Mandatory)

Experience with:

- Cloud-native application architectures
- Event-driven architectures
- Scalable and resilient application design

-> Integration & Messaging Technologies

Hands-on experience with at least one of the following:

- Kafka
- Amazon EventBridge
- Amazon SQS
- Amazon SNS
- IBM MQ or equivalent messaging platforms

Security & API Authentication

Strong understanding of:

- API authentication and authorization mechanisms




- Secure API exposure to upstream and downstream systems
- Enterprise integration security practices
- Authentication and access management concepts

-> DevOps & CI/CD

Mandatory experience in CI/CD and DevOps practices, including:

- Automated build and deployment pipelines
- Release management
- Environment management
- Monitoring and deployment automation

-> Database Technologies

Experience with:

- SQL Server
- PostgreSQL
- Other enterprise relational database platforms

Nice To Have:

- Terraform
- AWS CloudFormation
- Enterprise workflow orchestration platforms
- Cloud modernization initiatives
- Large-scale enterprise transformation programs

Domain Experience (Highly Desirable)

Experience in one or more of the following domains:

- Banking and Financial Services
- Mortgage and Home Loan Platforms
- Government Digital Services
- Government Scheme Automation
- AWS Government Services Platform (GSP) or similar government cloud environments
- Enterprise Workflow Automation and Process Digitization

Responsibilities:

- Design, develop, and maintain scalable, secure, and high-performance full-stack applications using .NET and React.
- Contribute to solution architecture, technical design, and low-level design (LLD) activities.
- Build and maintain RESTful APIs, microservices, and integration services.
- Develop cloud-native solutions leveraging AWS services and industry best practices.
- Design and implement event-driven integration patterns and messaging solutions.
- Collaborate with business, product, and engineering stakeholders to deliver automation and digital transformation initiatives.
- Implement workflow automation, orchestration, and process digitization solutions.
- Ensure solutions meet security, compliance, scalability, reliability, and performance standards.
- Support CI/CD implementation, DevOps practices, testing, release management, and production support activities.
- Provide technical leadership, mentoring, and guidance to engineering team members.
- Participate in architecture reviews and contribute to engineering standards and best practices.

📌 . net Developer (Sydney)
🏢 Nityo Infotech
📍 Sydney