Senior Software Engineer

Serko Ltd; Auckland; On-site; NZD 120,000 - 180,000; Full time

Benefits offered by this job

Competitive base salary

KiwiSaver with employee match 3.5%

Health insurance

Learning & development budget

Job summary

Serko is a cutting-edge tech platform in global business travel and expense technology. The team builds high-quality, customer-facing applications using Next.js/React, TypeScript and Tailwind, with Python valued.

You will own major initiatives end-to-end, break down complex problems, and drive production readiness with robust monitoring and run books. You will collaborate with cross-functional Product and Technology teams to deliver quality software, mentor engineers, and raise delivery

Qualifications

• Strong experience with modern frontend and backend technologies (Next.js/React, TS).
• Experience building customer-facing apps with accessible UI.
• Collaborative mindset with ability to mentor others.

Responsibilities

• Collaborate with cross-functional Product and Technology teams to create quality software that delights our customers
• Break down ambiguous problems into clear technical approaches and executable work.
• Champion consistent coding, testing and delivery practices within the team.
• Produce clean, consistent and well-organized solutions that align with our tech stack and regularly push changes to production.
• Identify cross-cutting concerns and address them early.
• Own delivery outcomes, ensuring predictability, quality and alignment with team goals.
• Ensure solutions are production-ready, including monitoring, alerting and run books where applicable.
• Mentor and support Engineer 1s and Engineer 2s through pairing, reviews and guidance.

Skills

Full-Stack JS

Next.js/React

TypeScript

Tailwind

Python

Tools

CI/CD

Design Systems

Testing automation

Job description

Serko is a cutting-edge tech platform in global business travel & expense technology. When you join Serko, you become part of a team of passionate travellers and technologists bringing people together, using the world’s leading business travel marketplace. We are proud to be an equal opportunity employer, and we embrace the richness of diversity, showing up authentically to create a positive impact. There’s an exciting road ahead of us, where travel needs real, impactful change.

You work alongside fellow Senior Engineers and being trusted with high autonomy to own major initiatives end-to-end and make the daily technical calls that keep teams shipping fast. You tackle the complex, system-level challenges that span beyond a single pod—proactively strengthening our agentic delivery systems, shaping solution design, and bringing clarity to our hardest engineering problems.

What you’ll do

• Collaborate with cross-functional Product and Technology teams to create quality software that delights our customers
• Break down ambiguous problems into clear technical approaches and executable work.
• Champion consistent coding, testing and delivery practices within the team.
• Produce clean, consistent and well-organized solutions that align with our tech stack and regularly push changes to production.
• Identify cross-cutting concerns and address them early.
• Own delivery outcomes, ensuring predictability, quality and alignment with team goals.
• Ensure solutions are production-ready, including monitoring, alerting and run books where applicable.
• Mentor and support Engineer 1s and Engineer 2s through pairing, reviews and guidance.

What you’ll bring

• Modern Full-Stack & Front-End Craft: Deep technical strength in Next.js/React, TypeScript, and Tailwind, with a sharp eye for building accessible, high-craft, customer-facing applications end-to-end. Working fluency in Python is valued.
• AI & Agentic Fluency: Solid understanding of AI and agentic capabilities, ensuring safe, scalable product adoption while actively using AI-assisted tools to multiply throughput for yourself and surrounding engineers.
• Systems Infrastructure & Platform Integration: Experience integrating shared platform services into live products and strengthening core developer infrastructure (CI/CD, test automation, dev environments) to elevate department-wide reliability and speed, alongside familiarity with Design Systems, component architecture, and responsive/accessible UI patterns.
• Collaboration & Mentorship: Proven track record of gaining buy-in for technical solutions, explaining complex decisions clearly, and collaborating across teams to solve cross-functional problems. Good communication skills with a history of mentoring across multi-teams.

At Serko we aim to create a place where people can come and do their best work. This means you’ll be operating in an environment with great tools and support to enable you to perform at the highest level of your abilities, producing high-quality, and delivering innovative and efficient results. Our people are fully engaged, continuously improving, and encouraged to make an impact.

Some of the benefits of working at Serko are:

• A competitive base salary
• KiwiSaver covered with employee contributions match up to 3.5% of salary, and life insurance.
• Health & Wellbeing: Discounted Southern Cross Health Insurance, access to confidential support, guidance and counselling services, wellbeing and voluntary leave, and free flu shots.
• Focus on development: Access to a learning & development platform, committed budget and opportunity for you to own your career pathways.