Job Description

Key Responsibilities:

Design, develop, and maintain backend services using Java 8/17, Spring Boot, and Java EE. Implement and maintain REST APIs based on RAML specifications, ensuring they are secure, scalable, and high-performing. Apply CQRS (Command Query Responsibility Segregation) and Eventual Consistency principles to design robust distributed systems. Utilize Event Sourcing and Pub/Sub systems to support event-driven architectures. Write and maintain automated unit and integration tests using JUnit, Mockito, and Wiremock to ensure high-quality code. Work with Apache Dataspike for performance testing and profiling to optimize system performance. Leverage Liquibase for database versioning and schema management with Postgres/SQL and Active MQ. Design and implement microservices in a Microservice-based Architecture, ensuring they are scalable, maintainable, and fault-tolerant. Manage containerized applications and services using Docker, Kubernetes, and Azure Kubernetes Service (AKS). Develop and deploy solutions on Azure, utilizing services like Function Apps (Azure) and Azure DevOps. Collaborate with cross-functional teams to define and implement scalable architectures and solutions. Participate in Agile development processes, contributing to sprint planning, code reviews, and knowledge sharing. Ensure high system reliability by applying monitoring, logging, and alerting best practices.

Requirements:

Essential Skills & Qualifications:

Proven experience as a Backend Developer with a strong focus on Java 8/17 and Spring Boot. Experience designing and implementing REST APIs using RAML. Strong knowledge of CQRS, Event Sourcing, and Eventual Consistency patterns. Familiarity with Domain Driven Design principles. Strong experience with Postgres/SQL and Active MQ. Solid understanding of microservice-based architecture and Pub/Sub systems. Experience with JUnit, Mockito, and Wiremock for testing purposes. Proficiency in version control systems, such as Git. Knowledge of Azure, including Function Apps and Azure DevOps. Proficiency in containerization using Docker and orchestration with Kubernetes. Strong problem-solving skills, with an emphasis on debugging and troubleshooting complex backend issues. Ability to work in a collaborative, fast-paced environment and adapt to changing project requirements.

Nice-to-Have Skills:

Experience with Microsoft Azure services (e.g., Azure Functions, Azure Storage, Azure App Service, Azure Kubernetes Service). Familiarity with Kubernetes for container orchestration and management. Experience with CI/CD tools and practices, particularly using Azure DevOps. Knowledge of Bash Scripts for automation tasks. Understanding of Docker and container management in a cloud environment. Exposure to Active MQ and Postgres/SQL for messaging and database management. Experience with Apache Dataspike for performance testing. Familiarity with Event Sourcing and Pub/Sub architectures in distributed systems. Experience working with Eventual Consistency and CQRS patterns. Knowledge of Domain Driven Design (DDD) principles. Understanding of microservice-based architecture and cloud-native design patterns.

This is a contract role :

3-6 month contract

Remote with some travel if client requires.

This role will require you to have or be willing to go through Security Clearance. As part of the onboarding process candidates will be asked to complete a Baseline Personnel Security Standard; details of the evidence required to apply may be found on the government website Gov.UK. If you are unable to meet this and any associated criteria, then your employment may be delayed, or rejected . Details of this will be discussed with you at interview.