About the Role

Viable Solutions is seeking an experienced Java Spring Boot Developer to join our team and deliver high-quality, scalable backend solutions for enterprise clients. You will be responsible for designing, developing, and maintaining Java-based microservices and REST APIs using the Spring Boot framework. This is a great opportunity for someone with strong Java and Spring Boot expertise who enjoys building robust, high-performance enterprise applications in a collaborative Agile environment.

Key Responsibilities

Backend Development

Design, develop, and maintain scalable Java applications and microservices using Spring Boot

Build and expose RESTful and GraphQL APIs for consumption by frontend and third-party systems

Develop and maintain backend business logic, service layers, and data access layers

Implement and manage Spring Framework components — Spring MVC, Spring Security, Spring Data, and Spring Cloud

Write clean, maintainable, and well-tested code following SOLID principles and best practices

Microservices & Architecture

Design and implement microservices architecture — service decomposition, communication, and resilience patterns

Implement inter-service communication using REST, gRPC, or message brokers

Work with message brokers — Apache Kafka, RabbitMQ, or ActiveMQ

Implement service discovery, API gateway, and circuit breaker patterns

Design for scalability, high availability, and fault tolerance

Database & ORM

Develop and optimise database interactions using Hibernate and JPA

Work with relational databases — PostgreSQL, MySQL, or Oracle

Work with NoSQL databases — MongoDB, Redis, or DynamoDB

Write complex SQL queries, stored procedures, and database migrations

Implement database versioning and schema management — Flyway or Liquibase

Security

Implement application security using Spring Security

Develop and manage OAuth 2.0, OpenID Connect, and JWT authentication and authorisation





Ensure API security, input validation, and protection against common vulnerabilities — OWASP Top 10

Implement secrets management and secure configuration practices

Cloud & DevOps

Deploy and manage Java Spring Boot applications on AWS — EC2, ECS/EKS, Lambda, and Elastic Beanstalk

Build and maintain CI/CD pipelines — Jenkins, GitHub Actions, or Azure DevOps

Containerise applications using Docker and orchestrate with Kubernetes

Implement infrastructure as code — Terraform or AWS CloudFormation

Support monitoring and observability — CloudWatch, Prometheus, Grafana, or Datadog

Testing & Quality

Write comprehensive unit and integration tests using JUnit, Mockito, and TestContainers

Implement contract testing and API testing — Pact or RestAssured

Conduct code reviews and contribute to engineering standards

Ensure code quality using static analysis tools — SonarQube or Checkstyle Required Skills & Experience

5–8+ years of hands-on Java development experience

Strong proficiency in Java 11/17+ — object-oriented, functional, and concurrent programming (mandatory)

Strong proficiency in Spring Boot — REST API development, microservices, and enterprise application design (mandatory)

Deep knowledge of Spring Framework — Spring MVC, Spring Security, Spring Data, and Spring Cloud

Experience with Hibernate and JPA — ORM and database integration

Solid SQL skills — complex querying, stored procedures, and performance tuning

Experience with message brokers — Apache Kafka, RabbitMQ, or ActiveMQ

Experience with Docker and Kubernetes — containerisation and orchestration

Hands-on AWS experience — EC2, ECS/EKS, Lambda, S3, RDS, or similar

Experience with CI/CD tools — Jenkins, GitHub Actions, or Azure DevOps

Strong understanding of microservices architecture and design patterns

Experience with unit and integration testing — JUnit and Mockito

Experience working in Agile / Scrum delivery environments

📌 Software Engineer (Melbourne)
🏢 Viable Solutions
📍 Melbourne