Senior Fullstack Developer

Restive; Melbourne; Hybrid; AUD 130,000 - 170,000; Full time

Job summary

Restive is a modern technology consultancy empowering clients across retail, financial services, and the digital ecosystem. We are seeking a Senior Full Stack Developer to lead API and payment integration initiatives and drive architectural excellence across new and existing services.

You will collaborate with product, design, and operations in a hybrid Melbourne-based role, delivering scalable solutions using C#, .NET, Azure, and microservices while mentoring engineers and raising coding

Qualifications

• Extensive experience as a Senior Full Stack Developer with deep C#/.NET expertise and a track record of leading engineering teams.
• Ability to architect scalable, secure solutions including design patterns, integration strategies and technical roadmaps.
• Hands-on experience with Mobile POS systems or in-store POS, including end-to-end transaction flows and device integration.
• Strong track record building APIs and microservices with robust, governed third-party integrations.
• Solid Azure experience covering solution architecture, CI/CD pipelines, deployment, scaling and observability.
• Experience driving engineering best practices, code quality, automated testing, security and performance.

Responsibilities

• Develop and maintain robust APIs to integrate with external systems and ensure smooth data flow.
• Collaborate with cross-functional teams to enhance customer experience and operational efficiency.
• Optimize performance and scalability through solid coding and architectural decisions.
• Leverage Azure cloud services to architect, deploy, and monitor scalable solutions.
• Implement automated testing frameworks and practices to ensure high-quality software deliverables.

Skills

C# & .NET

APIs & Microservices

Azure Cloud

Team Leadership

POS integration

Tools

CI/CD pipelines

Azure DevOps

Job description

You must have full-working rights in Australia to be considered.

What Restive Offers

Restive is a modern technology consultancy partnering with leading organisations across retail, financial services, and the wider digital ecosystem. Our approach is simple: deliver meaningful outcomes without unnecessary delays or over-engineering.

We bring together deep expertise across Data & AI, Customer Experience, Cyber Security, Digital Transformation, and Technology Modernisation. With teams based in Melbourne, Sydney, Brisbane, Perth, and Kuala Lumpur, we’re equipped to solve real-world problems at scale.

Joining Restive means:

• Working with a broad mix of clients and solving diverse, high-impact challenges
• Getting hands-on with emerging tools and modern engineering practices, including AI-driven development
• Access to continuous learning and professional development pathways
• Being part of a culture that values curiosity, growth, and genuine collaboration.

Who You Are

We are seeking an exceptional Senior Developersto join our dynamic team and spearhead the transition into a new and innovative phase of our projects, dedicated to enhancing the customer experience and streamlining operations through cutting-edge technology. You will play a pivotal role in building out APIs and supporting the integration of wider range of payment options, among other exciting features.

This is a hybrid work arrangement, offering you flexibility and freedom in how you work!

RESPONSIBILITIES:

• Develop and maintain robust APIs to integrate with external systems, ensuring smooth data flow.
• Collaborate with cross-functional teams to identify opportunities for enhancing customer experience and operational efficiency.
• Optimize performance and scalability through effective coding and architecture.
• Leverage Azure cloud services to architect and deploy scalable and reliable solutions.
• Implement automated testing frameworks and practices to ensure high-quality software deliverables.

REQUIREMENTS:

• Extensive experience as a Senior Full Stack Developer, with deep expertise in C# and the .NET ecosystem, and a strong track record of leading engineering teams.
• Proven ability to architect scalable, secure, and high-performing solutions, including defining system design, integration patterns, and technical roadmaps.
• Hands-on experience with Mobile POS (Point of Sale) systems or in-store POS, including end-to-end transaction flows, device integration, and retail/payment ecosystems.
• Strong expertise in designing and building APIs and microservices, ensuring robust, reusable, and well-governed integrations with third-party systems.
• Solid experience with Azure cloud services, including solution architecture, CI/CD pipelines, deployment strategies, scaling, and observability.
• Demonstrated experience in driving engineering best practices, including code quality, automated testing, security, and performance optimization.
• Experience collaborating with cross-functional stakeholders to translate business requirements into scalable technical solutions.