Senior Software Engineer — Platform & Architecture Lead

Domain Group; Sydney; On-site; AUD 120,000 - 150,000; Full time

Job summary

Domain Group in Sydney, Australia, is seeking a Senior Engineer to lead the full lifecycle of software projects within a cross-functional squad. You will architect solutions, write and review production-ready code, and mentor junior engineers to foster engineering excellence.

Ideal candidates have strong experience with .NET, React, TypeScript, and cloud platforms (AWS/Azure/GCP), plus microservices and API integration patterns. The role emphasizes security and scalable, robust software delivery.

Qualifications

• Experience with .NET, React, TypeScript or similar frontend technologies.
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Responsibilities

• Owns the full lifecycle of medium-sized projects: design, development, testing, production, deployment, and post-release improvements.
• Proficient in writing, co-writing, and reviewing clear, production-ready code and documentation.
• Leads by example, mentors junior team members, and drives engineering excellence within a cross-functional squad.
• Collaborates closely with Product Owner to ensure solutions deliver customer value and meet business needs.

Skills

C# / .NET

React

TypeScript

AWS

Azure

GCP

Microservices

Kafka

SNS/SQS

PostgreSQL

MySQL/Aurora

NoSQL (DynamoDB, Redis)

CI/CD

Infrastructure-as-code

Security

Education

Degree in Computer Science / Software Engineering

Tools

Docker

Kubernetes

CI/CD pipelines

Job description

Domain Group in Sydney, Australia, is seeking a Senior Engineer to lead the full lifecycle of software projects within a cross-functional squad. You will architect solutions, write and review production-ready code, and mentor junior engineers to foster engineering excellence.

Ideal candidates have strong experience with .NET, React, TypeScript, and cloud platforms (AWS/Azure/GCP), plus microservices and API integration patterns. The role emphasizes security and scalable, robust software delivery.