Senior Software Engineer (Back-End)

SecuritEase International Limited; Wellington; On-site; NZD 100,000 - 130,000; Full time

Job summary

A global fintech firm in Wellington is seeking a Senior Software Engineer to design and maintain scalable back-end services. The ideal candidate will have a deep understanding of Java and Spring Boot and experience in microservices architecture, along with skills in Docker and CI/CD processes. This permanent position offers an exciting opportunity to innovate in a supportive environment focused on security and performance.

Qualifications

• Strong expertise in Java and Spring Boot.
• Proven experience in microservices architecture and CI/CD (GitLab CI).
• Solid background in data workflows using Kafka and Apache Airflow.

Responsibilities

• Design, build, and maintain scalable back-end services.
• Develop RESTful APIs and integrate with messaging systems.
• Implement automated testing strategies with JUnit/Mockito.

Skills

Java expertise

Spring Boot

Microservices architecture

Docker/Kubernetes

Tools

Postgres

Kafka

RabbitMQ

Job description

Senior Software Engineer

Petone, Wellington 5012, New Zealand • Full-time

Description

About Us

SecuritEase is advancing our “Security First” initiative across the group, embedding a “Security by Design” culture in everything we build.

We’re looking for an experienced Senior Back-End Developer with deep Java and Spring Boot expertise to help us build scalable, robust microservices and data pipelines for our next-generation fintech platform.

What you’ll do

• Design, build, and maintain highly scalable back-end services using Java and Spring Boot.
• Develop RESTful APIs and integrate with messaging systems like Kafka and RabbitMQ.
• Work across relational (Postgres) and NoSQL (Cassandra, OpenSearch, Pinot) databases to deliver high-performing systems.
• Manage data workflows using Kafka and Apache Airflow.
• Implement automated testing strategies with JUnit/Mockito, TestContainers, and BDD frameworks.
• Ensure observability through logging, tracing, and monitoring with Prometheus and Grafana.
• Collaborate with multidisciplinary teams to design secure, efficient, and scalable solutions.

What you’ll bring

• Strong expertise in Java (concurrency, collections, streams, design patterns).
• Proven experience with Spring Boot, Spring Data, Spring Security, and Hibernate/JPA.
• Solid background in microservices architecture, Docker/Kubernetes, and CI/CD (GitLab CI).
• Knowledge of message-driven architectures, distributed systems, and idempotent pipelines.

Nice to have

• Familiarity with Scala, Python, or reactive programming.
• Experience with Kafka Streams, Kafka Connect, and advanced distributed system design.

About you

You’re a person who’s not afraid to get their hands dirty and get in and get the job done, while working in a small but busy global team. You’ll have a strong background in both Azure and AWS, with a focus on networking and firewalls. You enjoy working in a fast-paced busy environment, where there is always lots going on.

You’ll be encouraged to innovate and lead change, while maintaining an eye on the past to ensure we provide the best possible service to our customers.

If this sounds like you, come and join a global fintech team driving innovation across New Zealand, Australia, South Africa, and the UK. Based in our office in Petone, Wellington.

Role Type

On-site • Permanent • Full-time • Mid-level Senior