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Backend Engineer

Arvion ServicesChristchurch, New ZealandNZD 130k–NZD 168k / yrPosted Jul 3
Jobs by Adzuna

Job Overview:

We are seeking an experienced Senior Backend Engineer to join a global fintech organization specializing in cross-border payments technology. This role is ideal for a hands-on engineer who enjoys owning complex backend challenges end-to-end, from API design and data modeling to service architecture, production reliability, and platform modernization. The successful candidate will play a key role in building scalable payment infrastructure while providing technical leadership and mentorship across engineering teams.

What Will You Do:

  • Design, develop, and own backend services that support payments, multi-currency balances, onboarding, compliance, settlement, and related financial services.
  • Lead the delivery of new platform capabilities from problem definition through production launch.
  • Build and maintain partner integrations and settlement infrastructure critical to business operations.
  • Own production health within your domain, including observability, reliability, incident response, and on-call support.
  • Collaborate closely with Product, Compliance, Operations, Architecture, and Engineering teams to deliver scalable and secure solutions.
  • Lead technical design reviews, define architecture decisions, and establish engineering best practices.
  • Mentor and support the growth of mid-level engineers through technical leadership and knowledge sharing.
  • Drive modernization initiatives, including migration from legacy systems to modern cloud-native architectures.
  • Champion the adoption of AI-assisted software development tools and practices throughout the software development lifecycle.

What Makes You a Good Fit:

  • 6 to 10+ years of experience building and operating production-grade backend services end-to-end.
  • Strong backend development experience, preferably with C#/.NET; candidates with Java, Kotlin, Go, or other object-oriented programming experience are also encouraged to apply.
  • Solid understanding of SQL and relational database technologies.
  • Experience developing, maintaining, and executing automated tests as part of the software delivery lifecycle.
  • Hands-on experience using AI-assisted development tools such as GitHub Copilot, Cursor, Claude Code, or equivalent platforms.
  • Strong experience with AWS cloud services, CI/CD pipelines, and modern deployment practices, including services such as SQS, DynamoDB, S3, ECS, and Lambda.
  • Deep understanding of software architecture, system design, microservices, service-oriented architectures, and event-driven systems.
  • Experience working within payments, foreign exchange, fintech, or regulated industries.
  • Demonstrated technical leadership experience, including mentoring engineers, conducting design reviews, and making architecture decisions.
  • Strong written and verbal communication skills.

Nice to Have:

  • Experience with financial systems, including ledgers, double-entry accounting, or financial transaction platforms.
  • Experience participating in hiring, interviewing, or onboarding technical talent.
  • Experience leading platform modernization or migration initiatives.
  • Experience with caching technologies such as Redis or Memcached.
  • Familiarity with project management and documentation tools such as Jira and Confluence.
  • Experience with API testing tools such as Postman or Bruno.
  • Experience leveraging AI tools for automated testing and software quality engineering.

What We Offer:

  • Competitive remuneration package with annual salary reviews.
  • Paid birthday leave.
  • Additional annual leave entitlement based on years of service (up to 5 extra days).
  • Employer retirement contribution benefits.
  • Comprehensive healthcare coverage.
  • Employee stock purchase program.
  • Paid volunteering day to support a charity of your choice.
  • Complimentary office refreshments, including fruit, snacks, beverages, and coffee.
  • Access to mental health and wellbeing support resources.
  • Opportunity to work with a global fintech organization on innovative payment technologies.

Working Arrangement:

  • Hybrid working arrangement.
  • Opportunity to collaborate with global engineering teams across multiple regions.


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