Join Gallagher’s Global Growth Journey 

Our purpose at Gallagher is ‘Protect what matters most’ and we live it every day, whether that’s protecting the world’s highest security environments or agricultural businesses, we care deeply about our people, their families, and our wider communities.  

Gallagher Security is on a mission to unlock more value for our customers through the power of our people and solutions - and right now is a pivotal moment in our evolution. We’re scaling with intent, driving an incredible growth trajectory with innovation and customer impact at the heart of everything we do. With operations across New Zealand, Australia, Asia, Africa, the USA, Canada, and Europe and exports to over 140 countries we’re offering roles that shape our global mission, while being based right here in New Zealand.

As we expand our Hamilton-based teams, this is your chance to be part of a true Kiwi tech success story making a global impact. If you’re driven by passion and purpose to protect what matters most, come help shape the future of what’s possible with us. 

The Opportunity

We’re looking for a Full Stack Software Engineer to join our agile development team, building cloud-based products for a global market. You’ll play a key role in designing, developing, and maintaining high-quality software that supports our customers worldwide.

This role offers a mix of hands-on engineering, collaboration across product, UX, testing and support teams, and opportunities to contribute to technical design and continuous improvement.

In this role you will:

• Help shape the scope of work using design sprints, early prototypes, and user story mapping
• Create and maintain technical designs that meet functional, quality, and time expectations
• Use modelling techniques (e.g., UML) to communicate ideas clearly to technical and non-technical audiences
• Break down tasks, estimate effort, and deliver software components using appropriate tools and languages
• Support, maintain, and improve existing product capability
• Communicate problems clearly and propose well-reasoned solutions
• Follow established engineering practices including code reviews, testing, and quality standards
• Investigate defects to enable prompt, effective resolution
• Work collaboratively within an agile team to achieve project outcomes
• Stay current with emerging technologies and contribute to knowledge-sharing across the team
• Take ownership of your learning, development, and continuous improvement

The Fit

You bring a solid foundation in commercial software development, with experience across modern engineering practices and the ability to work confidently across both front-end and back-end technologies.

You’ll bring:

• A relevant tertiary qualification
• At least three years’ commercial software development experience
• Proficiency in .NET Core, C#, REST APIs, and web services
• Experience building for containerised environments (Docker, Kubernetes)
• Strong SQL capability with PostgreSQL, SQL Server, or similar
• Proficiency across front-end technologies - HTML, CSS, and modern JavaScript frameworks such as React
• Experience working in collaborative, agile environments
• Knowledge of AWS cloud application development
• Familiarity with CI/CD, build and deployment systems
• Confident use of debugging tools, version control, and unit testing
• Ability to work across multiple languages and platforms
• Experience in designing and documenting features or modules

Desirable experience includes Ruby, Blazor, automated testing, NoSQL databases, and knowledge of security-aware development (OWASP, CORS, etc.).

Why Gallagher?

You’ll be part of a global, future-focused organisation where engineering talent is valued and supported. You’ll work with smart, passionate people, build products used worldwide, and have room to grow your skills and career.

We also offer:

• Competitive salary and annual bonus scheme
• Life and Disability Insurance and KiwiSaver
• Hybrid role 3 days office with the flexibility to work from home 2 days
• Global career pathways 

We’d love to hear from you. Please note this role will remain open over the Christmas period, and we’ll begin reviewing applications once we’re back in the new year.