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Senior Backend/DevOps Engineer

Location: Auckland, New Zealand

We’re looking for an experienced Backend Developer who’s proficient in Java and Kotlin, with strong AWS DevOps skills to join our growing team. The successful candidate will be responsible for designing, building, and maintaining scalable and resilient backend systems. 

Here’s what we’re looking for you to tackle:

Development & Architecture:

  • Design, develop, and maintain robust and scalable backend systems using Java and Kotlin.
  • Implement, optimize, and maintain APIs for our web and mobile platforms.
  • Ensure code quality, maintainability, and extensibility.

AWS & DevOps:

  • Deploy, monitor, and manage applications within AWS environments.
  • Work with the AWS suite of tools to optimize backend performance, reduce costs, and ensure system reliability.



  • Minimum of 5 years of backend development experience with Java/Kotlin.
  • Proven experience with AWS services, particularly EC2, Elastic Beanstalk, RDS, S3, RDS, and related technologies.

Skills & Knowledge:

  • Strong knowledge of object-oriented programming, design patterns, and software development best practices.
  • Deep understanding of database design, optimisation, and management.
  • Proficiency with RESTful API design and development.
  • Proficient in AWS DevOps practices, infrastructure as code, and automation.


  • Bachelor's/Master's degree in Computer Science, Information Technology, or related fields (or equivalent experience).
  • Certifications in AWS

You’ll be resilient + up for a challenge - you enjoy hard work and the thrill of chasing a massive target. Friends would say you're honest, capable and a natural high-achiever... While being down to earth.

You love your work and understand that it's also meant to be fun. You’re mature enough to deal with a high-trust environment and lots of autonomy. You're probably looking for more than just a job - and you may even be looking for a once-in-a-lifetime opportunity...


SquareOne has big plans. Since launching 18 months ago with our debut product, we’ve onboarded more than 150,000 customers and added a wide range of capabilities around cards and banking. We only work with the best of the best, so you’ll be dealing closely with Mastercard, ANZ, Windcave & other partners.

We offer a challenging, fun and massively rewarding environment, with an exciting 5 year vision and an awesome, high performing team. Although the role is focused on risk and compliance there will be exposure to all areas of the business, and an opportunity to learn a huge amount as we grow the business.

If this sounds like you, send your cover letter and CV to: