Lead Full Stack Software Engineer

oneZero Financial Systems is a global software development company with offices in the USA, UK, Singapore, and Australia. Our platform, deployed with over 200 financial entities worldwide, empowers banks, brokerages and hedge funds with cutting-edge trading technology. oneZero's core product features a high-performance trading environment with real-time integrations with some of the world's leading banks and financial institutions.

We are currently looking for a motivated and talented Lead Full Stack Software Engineer to join our Canberra Development team. In this role, you will lead a squad responsible for oneZero's internal operations tooling and customer-facing platforms. You will deliver modern cloud-native web applications using React/TypeScript, .NET, Auth0 authentication, and AWS infrastructure (ECS, ALB, DynamoDB), as well as observability systems that manage hundreds of trading servers across our global client base. You will work collaboratively with a team of highly experienced developers from around the world. A financial background is not required, however, you must be able to learn new concepts quickly and apply them to system design, cloud architecture, and full-stack development.

Lead engineers should expect to spend, on average, around 50% of their time managing their engineering team and 50% on actual coding.

oneZero earns 2025 Great Place To Work Australia Certification™

https://www.onezero.com/awards/onezero-earns-2025-great-place-to-work-australia-certification

oneZero is proud to have been named one of Business Intelligence Group's Best Places to Work 2024:

https://www.onezero.com/homepage/onezero-2024-best-place-to-work-for-third-year/

The Boston Globe names oneZero a Top Place to Work for 2023:

https://www.onezero.com/homepage/the-boston-globe-names-onezero-a-top-place-to-work-for-second-year-in-a-row/

Please see oneZero featured in e-Forex Magazine to learn more about the company and our dynamic team https://e-forex.net/?s=onezero

This role is a full-time position in the oneZero Canberra office. Applicants must be based in the Canberra region or be able to relocate.

Benefits Include:

 ● Bonus plan

 ● Flexible workplace, including hybrid work from home a few days per week

 ● Private Health Insurance

 ● Monthly Wellness program subscription

Required Skills:

 ● At least 5 years of industry experience in C# / .NET development

 ● At least 2 years of technical management or lead experience

 ● Strong experience building web applications with modern frameworks (React/TypeScript or equivalent SPA)

 ● Experience designing and operating cloud-native services on AWS (ECS, ALB, DynamoDB, IAM) or equivalent

 ● Experience with REST API design and authentication/authorisation patterns (OAuth2/OIDC, JWT)

 ● Solid understanding of CI/CD pipelines (GitHub Actions or similar)

 ● Strong understanding of Object Oriented design principles

 ● Excellent verbal and written communication skills

 ● Experience contributing to employee performance review processes

 ● Relevant tertiary qualification

Additional Skills:

Additional experience in any of the following will be highly regarded.

 ● Agile methodologies and processes

 ● Containerisation (Docker) and infrastructure-as-code (Terraform, CloudFormation, or similar)

 ● Observability platforms (Datadog, Prometheus, Grafana, or similar)

 ● WPF / desktop application development

 ● Identity providers (Auth0, Okta, or similar) in a multi-tenant SaaS context

 ● Python scripting and automation

 ● Trading server administration APIs or forex/CFD brokerage operations

 ● Fintech, trading infrastructure, or regulated financial services

Australian Citizens & Permanent Residents may apply.