Senior Backend Engineer – Scale Fintech Platform (Hybrid)

Kernel; Auckland; Hybrid; NZD 120,000 - 180,000; Full time

Benefits offered by this job

Health insurance

Parental leave top up

Professional development support

Dog-friendly environment

Office snacks and coffee

Job summary

Kernel is a New Zealand fintech redefining how Kiwis grow their wealth. We’re seeking a Senior Backend Engineer to own the design, delivery and health of backend services powering our investment platform.

You’ll mentor peers, influence architecture and collaborate with Product and Design to deliver meaningful customer outcomes. Deep expertise in C#/.NET, AWS and API design is essential for reliability and performance.

Qualifications

• Experience building and operating backend systems in production.
• Strong proficiency in C#/.NET and cloud-based architectures.
• Ability to design scalable APIs and robust data models.
• Proven track record mentoring engineers and driving engineering best practices.

Responsibilities

• Design, build and operate backend services powering Kernel's investment platform.
• Own solutions from concept through production with focus on scalability and security.
• Contribute to architecture and technical decision-making across systems.
• Design APIs and data models supporting web and mobile experiences.
• Champion testing, observability and code quality.
• Mentor and support other engineers through coaching and code reviews.
• Collaborate with Product, Design and Engineering to deliver customer outcomes.

Skills

C#/.NET

AWS

API design

Distributed systems

Mentoring

Tools

Terraform

TypeScript

CI/CD

Job description

Kernel is a New Zealand fintech redefining how Kiwis grow their wealth. We’re seeking a Senior Backend Engineer to own the design, delivery and health of backend services powering our investment platform.

You’ll mentor peers, influence architecture and collaborate with Product and Design to deliver meaningful customer outcomes. Deep expertise in C#/.NET, AWS and API design is essential for reliability and performance.