Site Reliability Engineer - Fractional/Contractor (NZ)

First AML; New Zealand; On-site; Full time

Job summary

A growing tech company in New Zealand is seeking a Site Reliability Engineer to ensure the reliable operation of their SaaS platform. The ideal candidate will remove performance bottlenecks, enhance platform stability, and manage AWS infrastructure using Terraform. They should thrive in fast-paced environments and have experience with incident response and troubleshooting .NET applications. Join a team that emphasizes collaboration and innovation for a significant impact in the field of AML compliance.

Qualifications

• Deep experience with high-availability SaaS systems.
• Experience with AWS infrastructure.
• Comfortable troubleshooting .NET / C#.

Responsibilities

• Identify and remove performance bottlenecks.
• Lead effective incident response.
• Improve operational maturity of SaaS platform.

Skills

Reliability engineering

Performance optimization

Incident response

Team collaboration

Troubleshooting .NET/C#

Working with DataDog

Using Terraform

Tools

AWS

Terraform

DataDog

React with TypeScript

GraphQL API with .NET Core

Job description

Overview

As our Site Reliability Engineer, you’ll play a critical role in scaling Source reliably and securely. You’ll identify and remove performance bottlenecks, strengthen platform stability and uptime, and lead effective incident response as we grow. Working hands-on in our .NET codebase, you’ll improve the operational maturity of our SaaS platform and collaborate across product and engineering to design high-signal alerting that reduces noise and prevents disruption. You’ll help the team improve scalability and resilience at the application layer. You’ll also take ownership of core AWS and Terraform infrastructure, shape systemic reliability improvements, and lead incident response when it matters most.

Frontend: React with TypeScript, Apollo

Backend: GraphQL API built with .NET Core, Postgres

Infrastructure: AWS, AWS Lambda, containers, Terraform

CI/CD & Observability: Buildkite, DataDog

Experience with one or more of these technologies is ideal.

About you

You’re a technically strong, pragmatic engineer who cares deeply about reliability and teamwork:

Are passionate about driving systemic reliability improvements in SaaS platforms

Thrive in fast-moving environments and enjoy getting things done

Take pride in setting a high bar for incident response

Have deep experience with high-availability SaaS systems

Are confident working with DataDog and Terraform (this is essential)

Are comfortable troubleshooting and navigating .NET / C#

Speak up, listen well, and create space for others to contribute

Believe great products are built by great teams

Embrace learning and aren’t afraid to step into the unknown

About First AML

Who we are

Source by First AML is a one-stop verification platform that helps organisations meet AML obligations quickly, securely, and with minimal friction.

We’re experiencing exceptional growth — revenue is up 400% in the last 18 months, driven by strong regulatory tailwinds and increasing customer demand. More importantly, our work makes a real-world impact. By reducing the reach of money laundering, we help protect people and communities from criminal exploitation. Our customers report up to a 70% increase in efficiency using Source.

Diversity and inclusion matter deeply to us. We’re proud of our safe, inclusive workplace and are committed to continuous improvement across the business. We encourage everyone to bring their authentic selves to work.

Our Engineering team

We love solving complex technical problems and value thoughtful, high-quality engineering. You’ll be empowered to bring your expertise to the table and influence how we build and scale.

Engineering at First AML operates in small, autonomous teams - Tūi, Kārearea, Weka, and Dotterel - each made up of five developers (including a Tech Lead). We practise continuous delivery and deploy multiple times a day, enabling us to deliver value to customers quickly and safely.

Collaboration is central to how we work. Each engineering team partners closely with a dedicated Product Manager, creating a supportive, high-trust environment focused on shipping great products at pace.

You’ll join a supportive, ambitious team focused on building something extraordinary. We value honesty, ownership, and doing what we say we’ll do - especially when it takes hard work to reach our goals.

If you’re looking to make a real impact, grow quickly, and be heard in a workplace that genuinely values authenticity and inclusion, we’d love to chat.

How to apply

We usually advertise roles for around a week to give candidates time to learn about us and apply thoughtfully.

To apply.

Please submit your CV and tell us a little about yourself by sending an email through to [e-mail].

This is our first chance getting to know you, we won't cut any corners! We’ll spend a good amount of time reviewing every application that comes our way. This means that it may take a few working days to get back in touch with an update.

Don’t meet every requirement?We know that women, non-binary people, and individuals from underrepresented backgrounds are less likely to apply unless they meet every qualification. If you’re excited about this role but don’t tick every box, we encourage you to apply - we’re committed to building a diverse, inclusive, and authentic workplace.

Thanks for your interest and we’ll be in touch soon!