Intermediate Infrastructure Engineer

At Centrapay, we're revolutionising how you spend money both in-store and online. We allow businesses to create digital assets and loyalty programmes so that you can spend and be rewarded anywhere. Some of our partners include Coca-Cola, BNZ, and Farmlands, and we process payments in New Zealand and Australia.

Our payments platform is the heartbeat of what we do. On top of this, we're building our hero app, Payap (www.payap.com), that brings all of our best capabilities to life.

👩‍💻 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

• 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
  

• "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.

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

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