Technical Consultant - Public API (Open Banking) - Identity and Integration

Location: ASB C:Drive, Albany, Tāmaki Makaurau Auckland

Mō Mātou | About us

At ASB, we’re more than a bank. We’re a purpose led organisation focused on helping people, communities and our environment thrive together. With a proud history and a clear ambition to help New Zealanders get one step ahead, everything we do is guided by our values.

As one of Aotearoa’s most trusted banking partners, we offer the scale and stability of a large organisation, while genuinely valuing each person’s contribution. Your ideas matter here. Your growth is supported. And you’ll have the opportunity to do meaningful work that makes a real difference every day.

Mō te Tūranga | About the role

The Identity & Integration platform delivers reliable and innovative technology solutions at pace, leveraging our thought leadership and expertise. We are responsive, proactive, and transparent. Our goal is to have ‘always on’ capabilities, tomorrow's tech at tomorrow's pace, make things simple, be more awesome and embrace disruption and innovation and to enable our people to innovate at pace; simply and securely.

As a Technical Consultant, you’ll play a key role in shaping how ASB connects with partners and customers through our External API platform. You’ll lead the design and implementation of new integrations, with a strong focus on Open Banking and Financial‑grade APIs. Working closely with engineers, squads, and stakeholders across the bank, you’ll bring technical leadership, practical guidance, and a collaborative mindset to everything you do.

Key Responsibilities

• Lead the design and implementation of new integrations into ASB’s External API platform
• Provide technical leadership across Open Banking, FAPI, and integration design and delivery
• Engage with third‑party providers and internal stakeholders to provide guidance and consultancy
• Translate business requirements into clear, well considered technical designs
• Ensure solutions meet security, risk, and control requirements before release to production
• Act as the voice of engineering, working closely with squads and platforms to deliver high quality services
• Support and influence technical decisions beyond your immediate squad where needed

You bring a thoughtful and pragmatic approach to technical leadership, with the confidence to make decisions and the curiosity to seek better ways of working. You’re comfortable shaping complex work, engaging with stakeholders, and leading delivery from concept through to production. You care about building secure, reliable services and enjoy working collaboratively to deliver outcomes that make a real difference for customers.

What We’re Looking For

• Extensive experience in software engineering, with strong technical depth
• Proven experience in solution or technical architecture roles
• Strong background designing and delivering integrations at scale
• Hands on experience with Open Banking and Financial‑grade APIs
• Strong design and development skills using C# and .NET
• Experience working with API gateways, access policies, and integration patterns
• Solid understanding of digital certificates, mutual TLS, and secure API communication
• In‑depth knowledge of authentication and authorisation, including OAuth and OIDC
• Experience with containerisation and enterprise networking technologies
• Familiarity with CI/CD pipelines and version control tools such as Git
• Strong stakeholder management skills, with the ability to communicate clearly and confidently

• Experience working with cloud platforms, particularly Azure
• Hands on experience with security frameworks for Financial‑grade APIs
• Exposure to observability and monitoring tools such as the ELK stack
• Experience working in Agile environments

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

If you’re passionate about creating exceptional customer experiences and want to make a real impact, we’d love to hear from you. Apply now and help us build the next generation of payment solutions for New Zealanders.