Senior Software Engineer

Xero; Marlborough; On-site; NZD 120,000 - 150,000; Full time

Job summary

Xero is looking for a senior software engineer to lead delivery of high-impact, customer-focused software that powers partner tools. You will shape engineering direction with data, rethink workflows, and explore AI-assisted development to create new value.

You will collaborate with engineers across teams and participate in on-call support to ensure reliability. You will work in a hybrid setup across New Zealand with remote options and occasional office days, contributing to scalable, modern

Qualifications

• Deep experience with C#, ASP.NET Core and modern frontend frameworks.
• Proven ability to build and evolve AI-enabled production tools.
• Strong background in distributed systems using REST APIs on AWS.
• Solid CI/CD, automated tooling and test-driven development.
• Experience creating SDKs or internal libraries for teams.

Responsibilities

• Lead delivery of customer-focused software solutions with ownership.
• Drive cross-team alignment and influence engineering direction with data.
• Rethink workflows and research AI-assisted development tools.
• Participate in on-call roster and incident response to ensure reliability.

Skills

C#

ASP.NET Core

React

Redux

SQL Server

AWS

REST APIs

CI/CD

TDD

AI tooling

SDKs

Tools

AWS

REST APIs

CI/CD

SDKs

Job description

Accepting applications from across New Zealand and remote.

The role / impact

You will lead the delivery of high-impact, customer-focused software solutions that directly shape the practice tools our partners rely on daily. Navigating ambiguity with ease, you will solve complex, open-ended problems with a strong sense of ownership, technical depth, and operational insight.

Driving cross-team initiatives, you will build alignment across disciplines and influence engineering direction through clear communication, data-informed decision-making, and constructive collaboration. Going beyond simply shipping what is asked, you will rethink workflows and use artificial intelligence to build genuinely new value and capability for the team.

The Team / How They Connect

You will join a collaborative engineering community dedicated to supercharging small businesses by connecting them with big business technology. Working closely with Lead and Principal Engineers, the team applies modern software delivery frameworks to improve system performance, reliability, and developer efficiency. Together, they champion agile practices and bring outside pattern-matching into our ecosystem to proactively solve high-stakes logic challenges.

The team is currently working on / Initially, you will focus on

• Building full-stack features using React, Redux, C#, ASP.NET, and SQL Server.
• Refactoring complex, monolithic systems, balancing legacy WebForms with modern distributed system architectures on AWS.
• Reimagining everyday engineering workflows by researching, prototyping, and adopting real AI-assisted development tools.
• Participating in an on-call roster and incident response to help ensure 24/7 product support and reliability.

Where And How You Can Work

Xero offers a flexible working environment designed to support balance and collaboration. This position operates on a hybrid model out of Sydney, Melbourne, Canberra, or Brisbane, combining remote work options with collaborative time in our modern office spaces. You will participate in designated team boost days to connect in person, brainstorm, and strengthen team relationships, with occasional travel to Melbourne as required.

Here are some of the things we are looking for

• You bring deep technical expertise across C#, ASP.NET Core, modern frontend frameworks like React, and SQL Server data modelling.
• Proven experience in building and implementing AI tools into production environments delivering real impact to the business/ customers.
• A proven background in the architecture, implementation, and refactoring of distributed systems using REST APIs on AWS is essential.
• Your skillset includes solid experience with CI/CD concepts, automated tooling, and a passion for test-driven development principles.
• Having a natural instinct to treat artificial intelligence as a tool to completely redesign workflows and create automated agents rather than just a personal productivity add-on will set you apart.
• Experience building SDKs and internal libraries that enable other teams to seamlessly integrate with your products will be highly regarded.
• An inclusive approach to mentoring and coaching, combined with a challenger voice comfortable with disagreeing early to help the team design better systems.