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 building globally focused career pathways 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.

About the Role

We’re looking for a Senior Software Engineer (Full Stack) to join one of our agile product development teams. In this role, you’ll contribute to the design, development, and ongoing enhancement of our cloud-based security products used by customers around the world.

Working in a collaborative, cross-functional squad, you’ll help deliver high-quality software solutions across both front-end and back-end systems. You’ll play a key role in technical design, solving complex engineering problems, and mentoring other developers while helping ensure our products remain robust, scalable, and secure.

This is a great opportunity for an experienced engineer who enjoys working across the full stack, contributing to architectural decisions, and building modern cloud-based applications in a supportive and innovation-focused environment.

In this role you will:

• Design, develop, and maintain software components across front-end and back-end systems

• Contribute to technical design approaches that meet functional, quality, performance, and scalability requirements

• Develop applications using technologies such as .NET Core, C#, ASP. NET Core, REST APIs, and modern JavaScript frameworks

• Build and maintain cloud-native applications and services

• Work with containerised environments such as Docker and Kubernetes

• Analyse system performance and identify opportunities for improvement

• Write clean, maintainable, and well-tested code following agreed engineering standards

• Participate in code reviews, automated testing, and defect resolution

• Collaborate closely with engineers, product owners, testers, and other teams in an agile environment

• Support existing products and contribute to continuous improvement of our platforms

• Mentor and share knowledge with other engineers within the team

About You

You’re an experienced software engineer who enjoys building high-quality solutions and tackling complex technical challenges. You bring a collaborative mindset, strong problem-solving ability, and a passion for continuous learning and improvement.

You’ll bring:

• A relevant tertiary qualification at Bachelor Degree Level OR 5+ years of commercial software development experience

• Strong experience with .NET Core, C#, and ASP.NET Core or a comparable modern development stack

• Experience building REST APIs and web services

• Solid experience with SQL databases such as PostgreSQL or SQL Server

• Front-end experience using HTML5, CSS, and a modern JavaScript framework such as React or Angular

• Experience working in Agile software development environments

• Understanding of secure web development practices (OWASP, CORS, etc.)

• Experience building or deploying applications in cloud environments

Working at 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 bonuses

• Hybrid flexibility (3-4 days office / 1-2 days home)

• KiwiSaver on-top and Life and Disability insurance

• Mentorship and professional development opportunities

• A supportive team culture with team-building events, lunches and a fun environment

Join our Product team and help shape the technology that drives Gallagher’s world-leading security solutions. Applications may be considered and appointments made prior to the closing date.