Senior Fullstack Developer

Restive; Melbourne; Hybrid; AUD 120,000 - 150,000; Full time

Job summary

Restive in Melbourne is seeking a Senior Full Stack Developer to lead the transition into an innovative phase of our projects. You will build APIs, integrate payment options, and enhance customer experiences with cutting-edge technology.

You will mentor junior engineers and define scalable system design aligned with business goals. The role is hybrid, offering flexibility and collaboration across cross-functional teams, with emphasis on secure, high-performance solutions on Azure and robust

Qualifications

• Senior Full Stack Developer with deep C#/.NET expertise.
• Lead engineering teams and define system design and roadmaps.
• Experience with API, microservices, and Azure.
• Hands-on with Mobile POS/in-store POS and payment ecosystems.

Responsibilities

• Develop and maintain robust APIs to integrate with external systems and payment options.
• Collaborate with cross-functional teams to improve customer experience and operations.
• Optimize performance and scalability through code and architecture.
• Leverage Azure to deploy scalable and reliable solutions.
• Implement automated testing and CI/CD practices to ensure quality.

Skills

C#

.NET

Full stack

Team leadership

Azure

API design

Security

Tools

Azure

CI/CD

REST APIs

Microservices

Mobile POS

HTML/CSS/JS

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 Developers to 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.


• Familiarity with front-end technologies (HTML, CSS, JavaScript) to support full-stack solution design is advantageous.