Software Engineer – React/TypeScript & C# Backend

Serko Ltd; Auckland; On-site; NZD 120,000 - 170,000; Full time

Benefits offered by this job

Competitive base salary

KiwiSaver matching up to 3.5%

Health & Wellbeing benefits

Learning & development platform access

Job summary

Serko Ltd. is seeking a senior frontend/backend engineer to deliver well-defined features across the application experience layer, web applications and BFF services.

You will ship accessible, responsive interfaces and build BFF endpoints in C# while collaborating with Product, Design and Engineering to raise the team's craft and reliability. You’ll work autonomously, write tests from requirements, and participate in on-call support and infra changes.

Qualifications

• Solid React/Next.js and TypeScript; customer-facing features shipped to production.
• Experience building APIs in C# or another backend language.
• Accessibility fundamentals including ARIA, keyboard navigation and color contrast.

Responsibilities

• Work closely with Product, Design and Engineering, modelling strong engineering standards and teamwork.
• Understand the customer problem and success measure, and check that what you ship moves it.
• Help shape work into small, shippable slices with requirements anyone, or any agent, could check.
• Independently deliver well-scoped features to production, in line with our stack and design system.
• Implement designs faithfully and accessibly, including responsive behaviour and loading states.
• Build and extend the BFF endpoints your features need in C#.
• Work agentically by default, writing tests from requirements first and verifying output before it ships.
• Lead small projects with coaching, planning the work, running stand-ups and keeping stakeholders informed.
• Deploy and support what you build, including on-call and infrastructure changes with guidance.
• Contribute ideas that improve how the team works and what it ships.

Skills

React/Next.js

TypeScript

C# backend APIs

Accessibility

Testing & metrics

Security awareness

Code reviews & mentoring

On-call support

Job description

Serko Ltd. is seeking a senior frontend/backend engineer to deliver well-defined features across the application experience layer, web applications and BFF services.

You will ship accessible, responsive interfaces and build BFF endpoints in C# while collaborating with Product, Design and Engineering to raise the team's craft and reliability. You’ll work autonomously, write tests from requirements, and participate in on-call support and infra changes.