Intermediate Infrastructure Engineer

At Centrapay, we're on a mission to democratise payments. Outdated card technology leaves merchants paying high fees, gives consumers limited choice, and keeps traditional money and new digital value in separate worlds. We're changing that by building a universal acceptance layer that lets any modern digital wallet or asset transact at any connected point of sale.

Our vision is simple: moving value should be as easy and efficient as sharing information. As commerce shifts towards digital assets and mobile-first experiences, we're building the foundation for what comes next.

Join us in building the future of commerce.

What you'll actually be working on

These aren't abstract responsibilities. These are real projects from our roadmap:

• Stress-testing our systems before reality does : chaos engineering and load testing that deliberately breaks things in controlled ways, so we know exactly what happens when traffic spikes 10x on a public holiday or a dependency quietly falls over at 2am.
• Rolling out an AI Harness across engineering: not a chatbot bolted onto the sidebar, but tooling and workflows that change how we actually ship, review, and debug code day to day.
• Building disaster recovery that actually recovers: complete regional failover, so if an entire cloud region disappears mid-transaction, our system keeps moving people's money and nobody but us ever notices.

How we actually work

• You build it, you run it, you own it. Engineers at Centrapay ship features end-to-end and see them through production. When something breaks or could be better, you have the context and autonomy to fix it - no waiting for permission or handoffs to other teams.

• Learn by building. We give you business problems, not specs. "Partners need faster onboarding" is your starting point, and how you solve it is up to you. You'll do market research, run spikes, and explore the solution space. No ticket grooming, no story pointing. We also have 10% time and hackathons where you can experiment with new tech you wouldn't normally get to use.
• Progress over perfection. We deploy to production daily, and you'll push code on your first day. We believe in shipping early, iterating fast, and learning from real usage.
• Work across the stack. Backend, frontend, infrastructure. Whatever it takes to deliver amazing experiences for our customers.

Our stack

Don't stress if you haven't touched some of these, we'll help you bridge the gaps:

• AI tools: Claude Code, Cursor, Github Copilot
• Backend & data: Node.js, DynamoDB, Redis, Vitest
• Frontend: Vue.js, Tailwind CSS, Astro, Testing Library, Playwright
• Infrastructure & operations: AWS, Kubernetes, Terraform, Honeycomb, OpenTelemetry
• Tooling: Claude, Github, Slack, Notion, Figma

Requirements

Who we're looking for

• At least 3 years shipping real code to users - we're looking for people who've learned from real mistakes and know what it takes to build reliable systems
• Clear writing: since we're async-first and most of our communication happens in writing
• Comfortable with ambiguity: you’ll be expected to talk to users and figure out what to build

Why you might not apply (and why you should anyway)

• "I don't have AWS experience" - We care more about how you think than what cloud services you have used. If you can build on GCP or Azure, you can learn AWS in a week, and we'll pair with you to help you get up to speed.
• "I don't live in Auckland" - No problem, we want you work to where you work best.

The interview process

We believe in being open and transparent, so here’s exactly what to expect:

• First chat (1 hour video call) - an opportunity to get to know you, talk about the role and Centrapay
• Take-home task - 2-4 hours on your schedule
• Code review session (1 hour video call) - discuss your task, design decisions, and trade-offs together
• Final chat (30 minutes) - an opportunity to connect with our CEO and CTO

Why Join Us?

• Be part of a fast-growing fintech shaping the future of payments
• Work with a team that values innovation, collaboration and ambition
• Competitive compensation, growth opportunities, and a chance to make a real impact

Benefits

We look after our people at Centrapay, a key focus is our culture and ensuring we create a positive and healthy work environment. We continuously look at ways to make improvements and regularly ask for employee feedback and input.

Your key benefits

• We offer flexible working
• Awesome office location at City Works Depot (if you're in Auckland)
• 6 weeks annual leave
• A Macbook Pro
• We have a down-to-earth, open culture that values inclusion
• In-person and online social activities to keep you connected
• Training and development opportunities
• Sick leave from day one
• Free health insurance via Southern Cross
• Free Life insurance
• Additional parental leave entitlements

For more information on Centrapay please visit https://centrapay.com/

BNZ and Centrapay are partnering together to lead the charge in payment innovation and push the boundaries of what’s possible.