Job Description

Onyx Gaming is a trusted operational advisor and a leading force in Electronic Gaming Machine (EGM) systems. Our commitment to excellence and innovation has made us a key player in the gaming industry, empowering hospitality venues across Australia with cutting-edge solutions.

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As we continue to grow, we're on the lookout for a Software Engineer to help design, build and evolve the platforms that power our products and customer experiences.

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About the Role

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As the Software Engineer, you'll design, develop and maintain secure, high-performance software that supports both our internal operations and customer-facing systems. You'll work across backend services, APIs, integrations and modern cloud infrastructure, contributing to reliable, scalable solutions in a regulated, real-world environment.

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This is a hands-on engineering role with real ownership, suited to someone who enjoys solving complex problems, building high-quality software and helping others grow. You'll play a key role in shaping our engineering capability by sharing your expertise, mentoring developers and championing best practice in modern software development, particularly across our C#/.NET environment.

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In this role you will be responsible for

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- Designing and building backend services using C#/.NET (ASP.NET Core) and PHP (Laravel)
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- Developing modern front-end experiences using React / NextJS
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- Creating and evolving REST/gRPC APIs and integrations
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- Deploying and managing cloud infrastructure in AWS
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- Modelling and optimising data in SQL Server / PostgreSQL
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- Implementing automated testing across unit and integration layers
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- Supporting CI/CD pipelines, DevOps practices and production releases
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- Monitoring, troubleshooting and improving system reliability and performance
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- Applying secure coding practices and supporting compliance requirements
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- Collaborating with QA, Product and external testing partners to deliver high-quality releases
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- Providing technical mentoring and guidance to other developers, particularly across C#/.NET development.
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- Supporting code reviews, engineering standards and continuous improvement initiatives.
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- Contributing to documentation, engineering standards and continuous improvement
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About You

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You're an experienced Software Engineer with deep expertise in C#/.NET and a passion for building high-quality, scalable software. You're someone other developers naturally turn to for advice and guidance, and you enjoy mentoring others while remaining hands-on in delivery.

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You think beyond writing code, considering reliability, security, performance and long-term maintainability. You enjoy collaborating across teams, communicating technical concepts clearly and taking ownership of delivering great outcomes.

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Skills & Qualifications

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- 5+ years' experience building and operating production software systems in backend or full-stack roles
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- Strong experience with C#/.NET
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- Experience with React/NextJS (or similar front-end frameworks)
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- Experience designing and delivering production APIs and services
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- Solid database skills (SQL Server or PostgreSQL)
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- Exposure to cloud environments (AWS or Azure) and CI/CD practices
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- Experience with containerisation (Docker; Kubernetes a plus)
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- Understanding of secure development practices and authentication/authorisation
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- Comfortable working in agile environments and collaborating with cross-functional teams
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- Strong problem-solving and communication skills
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- Nice to have:
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- Experience in regulated or high-availability environments
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- Observability/monitoring tools
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What We Offer

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- Competitive salary and benefits package.
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- A team-oriented and supportive work environment.
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- Opportunity to work with a passionate and talented team.
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- Employee Assistance Program (EAP) to support your wellbeing
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- Professional development opportunities through our L&D; program and career growth.
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- One paid Community Day each year to volunteer or support a cause you care about.
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- Barista coffee machine, quarterly celebrations and regular team events.
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The successful applicant will be required to obtain a VGCCC Gaming License and/or OLGR License.

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Some regional and Interstate travel may be necessary in this role.

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Onyx Gaming is an equal opportunity employer. We encourage applications from candidates of all backgrounds and experiences.

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📌 Software Engineer (Middle Park)
🏢 Onyx Gaming
📍 Middle Park