Senior Java Microservices AWS Developer

DCV Technologies; Greater London; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

A leading technology firm is seeking a Senior Java Microservices AWS developer to design and develop scalable web applications. This role requires a minimum of 10 years of Java development experience with strong knowledge of AWS services and cloud-native architecture. You will be involved in architecting RESTful APIs, developing microservices, and implementing CI/CD practices. This position is on-site in London for 2 days a week, with a contract of 6 months.

Qualifications

• Minimum 10 years of experience in Java application development.
• Strong hands-on expertise in Java 11+ (preferably Java 17).
• Proficiency in Spring Boot and core Java concepts.

Responsibilities

• Design and develop Java web applications using AWS technologies.
• Architect RESTful APIs for enterprise systems.
• Integrate AWS services for cloud deployments.
• Build multithreaded applications with performance in mind.
• Implement CI/CD pipelines for automated deployments.
• Containerize applications using Docker and orchestrate with Kubernetes.
• Ensure application security and performance tuning.
• Collaborate with teams and own feature development.

Skills

Java 11+

Spring Boot

Microservices architecture

Multithreading

AWS Cloud services

Docker

Kubernetes

CI/CD tools

Sybase

DB2

Job description

Position: Senior Java Microservices AWS developer

Location: London, UK (2 days a week from office)

6 months contract position

The Role

As Senior Java Microservices AWS developer with a strong hands‑on experience, you will design and develop scalable, cloud‑native web applications using Java and AWS Serverless architecture Model.

Your responsibilities: (Up to 10, Avoid repetition)

• 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: (Up to 10, Avoid repetition)

• Minimum 10 years of experience 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: (As applicable)

• Familiarity in front end technologies.
• AWS Certification (Developer or Solutions Architect).
• Knowledgeable of Service now tool