Senior Software Engineer

Senior Software Engineer – The Onset Location: Sydney, Australia Contract: Full‑time Salary: $150,000 – $170,000 per annum (plus yearly bonus)

Overview Join The Onset, an Australian‑grown company known for its tech‑driven culture and a modern .NET Stack. In this position you will own key projects that shape the next phase of our platform, delivering scalable solutions that impact thousands of customers.

Responsibilities

Design, develop, and maintain customer‑facing applications on Azure.

Own the end‑to‑end software development life cycle, from requirements through to production.

Influence architecture, culture, and ways of working from day one.

Collaborate with cross‑functional teams to deliver high‑quality, performant code.

Apply best practices in CI/CD, automated testing, and cloud architectures.

Contribute to the company’s AI journey and help turn ambitious ideas into tangible outcomes.

Qualifications

8+ years of hands‑on software engineering experience.

Expertise in C#/.NET, cloud platforms (Azure, AWS, GCP), and relational database design.

Strong experience with API development, CI/CD pipelines, and DevOps practices.

Product mindset with comfort for uncertainty, experimentation, and high output.

Passion for building scalable systems that delight users.

Benefits

Work with an experienced engineering team driving the full SDLC.

Autonomy and ownership of customer‑facing applications that make a genuine impact.

Room to innovate—shape architecture, culture, and ways of working.

Exposure to the latest technologies and the AI journey.

Competitive salary, annual bonus, and comprehensive benefits package.

How to Apply Apply now through the job portal or contact Karl directly at

karl@theonset.com.au .

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