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 to join our High Security team. In this role, you’ll contribute to the design, development, and ongoing enhancement of our high 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.

• 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

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:

• 5+ years of commercial software development experience

• Strong experience with .NET Core, C#, 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

• Strong understanding of software quality practices, including unit testing and automated testing

• Experience working in Agile software development environments

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

• Experience building or deploying applications in cloud environments

• Familiarity with cryptographic concepts such as asymmetric/symmetric cryptography, secure hashing and the role of encryption vs authentication. Awareness of post-quantum cryptography

Security requirements: To be considered for this role, you will be required to gain and maintain a security clearance (to at least Confidential level). To be eligible to obtain this security clearance, you must be an NZ permanent resident and have resided continuously in NZ or one of the 5 Eyes countries (NZ, USA, UK, Canada, Australia) for the past 5 years.

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 (typically 3 days in the office, with additional onsite days required depending on work demands)

• 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

Growth at Gallagher is constant, and we are building our team with like-minded individuals who relate to our story so that together we can continue to push the boundaries of what is possible.

Applications will be reviewed as they are received and an appointment to the position may be made prior to the listing closing – so apply now.