Senior Backend Engineer, Real-Time Fintech Platform

Emerge Group; Auckland; On-site; NZD 120,000 - 180,000; Full time

Job summary

Emerge Group is seeking a Senior Backend Engineer in New Zealand to own high‑impact services across real‑time financial products and platform growth. You will design, build and operate Kotlin/Spring services, work on the core banking platform, and drive production ownership with a team that values speed, judgment and reliability.

You will contribute to architecture reviews, production readiness, and collaborate closely with product and operations as Emerge expands its platform.

Qualifications

• 7+ years backend experience with Kotlin or Java and Spring Boot.
• Production experience with PostgreSQL including schema design and migrations.
• AWS production experience (ECS, Lambda, S3).
• Own backend services end-to-end from design to production support.
• Strong judgement on distributed systems, data consistency and failures.
• Practical experience with AI coding tools and review processes.
• New Zealand work rights or clear pathway to start without visa delays.

Responsibilities

• Design and build Kotlin and Spring services across authorisation, ledger, limits, reconciliation and settlement.
• Extend the core platform for new products across personal, business and partner banking use cases.
• Own correctness through idempotent operations, safe retries, immutable records and reliable event handling.
• Keep PostgreSQL performant and safe through schema design, indexing, migrations and query tuning.
• Work across AWS infrastructure, observability, alerting and production support for owned services.
• Participate in design reviews, tech reviews, PR reviews and incident response.
• Use AI coding tools daily, while reviewing and owning the quality of code shipped.

Skills

Kotlin/Java

Spring Boot

PostgreSQL

AWS

Distributed systems

AI coding tools

Production ownership

Job description

Emerge Group is seeking a Senior Backend Engineer in New Zealand to own high‑impact services across real‑time financial products and platform growth. You will design, build and operate Kotlin/Spring services, work on the core banking platform, and drive production ownership with a team that values speed, judgment and reliability.

You will contribute to architecture reviews, production readiness, and collaborate closely with product and operations as Emerge expands its platform.