Principal Software Engineer - AI-Driven Fintech Platform

Arvionservices; Christchurch; Hybrid; NZD 180,000 - 230,000; Full time

Benefits offered by this job

Annual salary reviews

KiwiSaver contributions

Healthcare coverage

ESPP discount program

Volunteer day

Office refreshments

Job summary

Arvionservices is seeking a Principal Software Engineer to join a global fintech organization focused on cross-border payments technology. This senior individual contributor role requires hands-on leadership to drive complex initiatives, influence technical strategy, and modernize large-scale platforms.

The ideal candidate brings strong full-stack capabilities, cloud experience (AWS), and familiarity with AI-assisted development.

Qualifications

• Minimum 8 years of experience building and delivering production-grade software applications end-to-end.
• Frontend engineering fundamentals: responsive, accessible, performant, internationalized.
• Strong backend experience, preferably with C#/.NET; other OO languages encouraged.

Responsibilities

• Lead the engineering approach for complex initiatives across the full tech stack.
• Define and drive technical standards, architecture decisions, and best practices.
• Mentor engineers through design reviews and guidance.
• Contribute production-grade code for critical systems.
• Collaborate with Product, Design, Compliance and Engineering to translate business goals into scalable solutions.
• Drive modernization including cloud-native migrations.
• Promote AI-powered development tools and best practices for AI in SDLC.
• Contribute to system architecture, scalability, performance, and operations.

Skills

Frontend frameworks (Vue.js/React)

Backend (C#/.NET)

Cloud & AWS

AI-assisted development

System design & architecture

Mentorship & technical leadership

SQL/Relational DB

CI/CD & modern deployments

Payments domain experience

Tools

GitHub Copilot

Cursor

Claude Code

Jira

Confluence

Job description

Arvionservices is seeking a Principal Software Engineer to join a global fintech organization focused on cross-border payments technology. This senior individual contributor role requires hands-on leadership to drive complex initiatives, influence technical strategy, and modernize large-scale platforms.

The ideal candidate brings strong full-stack capabilities, cloud experience (AWS), and familiarity with AI-assisted development.