Software Consultant

Software Consultant - Modern Integration (API & Integration Solutions)
Mō Mātou | About us:
At ASB, we're more than a bank — we're a purpose-led organisation helping people, communities, and our environment thrive together. With a proud history and a clear vision to support New Zealanders in getting one step ahead, our work is guided by the values of Courage, Care, and Curiosity. We're bold in challenging the status quo, we genuinely care about those we work with and serve, and we're always exploring new ideas to improve how we work.

As one of Aotearoa's most trusted banking partners, we offer the scale and stability of a large organisation, while recognising and valuing each person's contribution. Your ideas, growth, and impact matter here — and you'll be supported to do meaningful work every day.

Mō te Tūranga | About the role
Join ASB's Identity & Integration platform, where we deliver fast, reliable, and innovative tech solutions. As part of the Modern Integration workstream, you'll lead solution design and strategic work for our API and integration platforms—driving transformation with cutting-edge tools and a focus on simplicity, security, and speed.

Key Responsibilities

• Platform development – Design and build an API-driven PaaS solution for seamless integration across internal systems.
• API design & architecture – Lead API design using OpenAPI specs, ensuring security, scalability, and performance.
• Solution design – Analyse requirements and design technical solutions that meet functional and non-functional needs (e.g. security, extensibility, maintainability).
• Code review – Assess existing codebases, uphold design principles, and recommend improvements.
• DevOps & CI/CD – Implement and optimise pipelines, automation, and infrastructure using Azure DevOps.
• Documentation & standards – Create clear technical documentation, naming conventions, and integration standards.
• Collaboration & mentoring – Influence API design decisions and support developers with best practice guidance.

Ō Pūkenga | About you
We're looking for a seasoned Software Engineer with deep expertise in API design and integration. You'll bring strong technical leadership, hands-on development skills, and a passion for building secure, scalable solutions.

What You'll Bring

• 5+ years' experience leading technical design or providing deep expertise in API development and solution architecture
• Proven track record designing and developing APIs (HTTP, REST) with strong architectural knowledge
• Expertise in API security including modern authentication methods and performance optimisation
• Advanced .NET and C# skills, plus experience with API design tools like Redocly and SwaggerHub
• Hands-on DevOps experience, including CI/CD pipeline setup and automation (preferably with Azure DevOps)
• Proficiency in Git and source control best practices
• Strong analytical skills for technical analysis, requirements gathering, and solution architecture
• Clear technical writing for documentation and design specifications

Bonus Skills

• Experience in banking, payments, lending, or Open Banking systems
• Familiarity with Banking Industry Architecture Network (BIAN)

Te mahi ki ASB | Working for ASB
ASB's sense of who we are and what we stand for is grounded in our values. They guide our business in our day-to-day interactions with our team, customers and community. They are what makes ASB — ASB.

• Career Growth: Access to learning and development through training sessions, courses, and internal opportunities
• Inclusive Culture: Join values-led teams that celebrate diversity and support employee-led communities
• Health & Wellbeing: Southern Cross Wellbeing One health insurance, lifestyle and volunteering leave, and mental wellbeing support
• Meaningful Benefits: Enjoy discounted banking, insurance, and a generous parental leave top-up
• Impactful Work: Be part of a purpose-led organisation that makes a difference for New Zealanders

Join a team where your expertise is valued, your ideas drive change, and your growth is supported every step of the way. If you're passionate about technology and want to make an impact, this is your chance.

Ready to take the next step? Apply today.