Role / Job Title: Senior Java Microservices AWS Developer Work Location: 250 Bishopsgate, London, UK Office Presence (Hybrid): 2 days per week The Role As a Senior Java Microservices AWS Developer with strong hands-on experience, you will design and develop scalable, cloud-native web applications using Java and the AWS Serverless Architecture Model. Responsibilities Design and develop web applications using Java (latest versions), Spring Boot, and AWS technologies Architect and implement RESTful APIs for distributed enterprise-grade systems Develop robust, scalable, and high-performance microservices leveraging Spring Boot and modern design patterns Integrate and manage AWS services such as EC2, S3, Lambda, RDS, and API Gateway for cloud-native deployments Build and optimize multithreaded and concurrent applications, ensuring thread safety and performance Implement CI/CD pipelines using Jenkins, GitHub Actions, or AWS CodePipeline for automated deployments Containerize applications with Docker and orchestrate using Kubernetes for scalability and resilience Integrate Kafka for event-driven architecture and real-time data processing Ensure application security, performance tuning, and monitoring using AWS CloudWatch and best practices Collaborate with cross-functional teams, participate in code reviews, and take full ownership of feature development from design to production Your Profile Essential Skills / Knowledge / Experience Minimum 10 years of experience in Java application development Strong hands-on expertise in Java 11 (preferably Java 17 or latest) Proficiency in Spring Boot, Microservices architecture, and Core Spring Experience with Java server-side concurrent programming, multithreading, and design patterns Deep understanding of AWS Cloud services, including: Serverless Architecture (Lambda, DynamoDB, ECS Fargate) Core AWS services: EC2, S3, RDS, API Gateway, SQS, SNS, Kinesis, CloudWatch, CloudFormation, IAM, CodeBuild, Security Groups, ALBs, KMS, Secrets Manager, Parameter Store Knowledge of message-based architectures (Kafka or MQ) Proficiency with Docker, Kubernetes, and CI/CD tools Strong database skills: Sybase and/or DB2, complex SQL queries, plus NoSQL familiarity Experience with JUnit, integration testing, and Test-Driven Development (TDD) Agile / Scrum methodology experience Desirable Skills / Knowledge / Experience Familiarity with front-end technologies AWS Certification (Developer or Solutions Architect) Knowledge of ServiceNow tool