Senior .NET API Developer – Full-time Permanent Job in Sydney, Australia

Website Reninfo

Location

Sydney, Australia

Job Category

  • Information Technology (IT) & Software
  • Engineering & Technical

Job Overview

We are seeking an experienced Senior .NET API Developer to join a growing technology team in Sydney, Australia. This is a full-time, permanent opportunity for professionals with extensive experience in enterprise API development, microservices architecture, and cloud-native integration solutions. Please note that visa sponsorship is not available, and applications are open only to Australia-based consultants.

In this role, you will design, develop, and maintain scalable APIs and event-driven integration platforms that support enterprise applications and digital transformation initiatives. Working with modern Microsoft technologies and cloud platforms, you will contribute to the delivery of secure, high-performance solutions while collaborating with cross-functional engineering teams. This position offers excellent long-term career growth, opportunities for professional development, and continuous upskilling in modern software engineering, cloud integration, and enterprise application architecture.


Key Responsibilities

  • Design, develop, and maintain enterprise-grade REST APIs using C# and .NET Core/.NET 6+.
  • Build scalable microservices and cloud-native integration solutions.
  • Develop event-driven applications using Azure Event Hub, Azure Service Bus, Kafka, and RabbitMQ.
  • Implement and manage APIs through Apigee API Gateway.
  • Develop secure authentication and authorization using OAuth and JWT.
  • Integrate applications using JSON-based APIs and SQL Server databases.
  • Build, test, and deploy applications using Azure DevOps, Git, and CI/CD pipelines.
  • Deploy and manage containerized applications using Docker and OpenShift.
  • Optimize API performance, scalability, reliability, and security.
  • Collaborate with architects, developers, and stakeholders throughout the software development lifecycle.
  • Troubleshoot production issues and implement continuous improvements.

Requirements & Qualifications

Education

  • Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related field.

Experience

  • Proven experience as a Senior .NET API Developer or similar backend development role.
  • Strong experience designing enterprise APIs and microservices.
  • Experience developing cloud-native and event-driven integration solutions.

Technical Skills

  • C#
  • .NET Core / .NET 6+
  • REST API Development
  • Microservices Architecture
  • Azure Event Hub
  • Azure Service Bus
  • Kafka
  • RabbitMQ
  • Apigee API Gateway
  • OAuth
  • JWT Authentication
  • JSON
  • SQL Server
  • Azure DevOps
  • Git
  • CI/CD Pipelines
  • Docker
  • OpenShift

Soft Skills

  • Strong analytical and problem-solving skills.
  • Excellent communication and teamwork abilities.
  • Ability to work in agile development environments.
  • Strong attention to detail and commitment to software quality.

Certifications

Professional certifications in Microsoft Azure, .NET development, cloud technologies, DevOps, or API management are advantageous but not mandatory.


Salary, Benefits & Career Growth

Salary & Compensation

Salary information has not been provided by the employer.

Benefits

  • Full-time permanent employment.
  • Opportunity to work on enterprise-scale API and cloud integration projects.
  • Exposure to modern Microsoft technologies and cloud-native architectures.
  • Collaborative engineering environment.
  • Opportunity to work with advanced DevOps and containerization technologies.

Career Growth

  • Develop expertise in enterprise API architecture and cloud integration.
  • Expand knowledge of Azure services, event-driven systems, and modern microservices.
  • Access opportunities for professional development, technical training, certification support, and continuous skill enhancement.
  • Build long-term career progression in enterprise software engineering and cloud platform development.

Application Process

Application Process (Website)

  • Apply only through the official job link.
  • Click Apply Now on the website.

HR Email for Application

Send your updated CV directly

To apply for this job email your details to Likhitha@reninfo.com.au