Senior Backend Developer

5 days ago

Dublin, Dublin City, Ireland beBeeSpecialist Full time €80,000 - €100,000
Backend Modernization Specialist

We are seeking a seasoned Backend Modernization Specialist to contribute to the transformation of our backend architecture. You will play a crucial role in supporting the transition of SOAP-based services into RESTful microservices using Spring Boot, working in a cloud-native environment built on Docker, Kubernetes (or ECS), and AWS.

Our platform consists of multiple distributed services that process millions of requests per hour. This is an excellent opportunity to deepen your experience in scalable systems and modern development practices while learning from senior engineers.

Key Responsibilities
  • Assist in designing and implementing REST APIs using Spring Boot and SwaggerHub
  • Contribute to the transformation of SOAP/XML to REST/JSON for backend services
  • Support API development and integration in a microservices environment
  • Contribute to containerized microservice development using Docker and Kubernetes, or AWS ECS
  • Participate in deploying and managing services on AWS cloud infrastructure
  • Collaborate on integrating with API Gateway, Lambda, and IaC tools like CloudFormation
  • Testing & Quality: Write and maintain integration and unit tests using tools such as JUnit and Mockito
  • Assist with debugging API issues and ensuring accurate data transformations
  • Work with the team to implement CI/CD and automation practices
  • Performance, Caching & DevOps: Support performance tuning and caching solutions (e.g., Redis)
  • Contribute to stateless microservice design and improvements
  • Help monitor application health using tools like Prometheus or ELK Stack
  • Work closely with senior engineers, QA, and product teams
  • Actively participate in agile ceremonies and sprint planning
  • Engage in peer reviews, mentorship opportunities, and continuous learning
Required Skills & Experience
  • 3+ years in Java development with Spring Boot
  • Understanding of REST architecture principles and best practices
  • Experience building REST APIs and integrating with JSON-based services
  • Exposure to SOAP-to-REST migration or service transformation projects
  • Hands-on with Docker and familiarity with Kubernetes or AWS ECS
  • Basic knowledge of Infrastructure as Code (IaC) tools like Terraform or CloudFormation
  • Familiarity with relational and NoSQL databases: PostgreSQL, MySQL, MongoDB, or Redis
  • Experience with CI/CD pipelines and tools such as Jenkins or GitLab CI
  • Proficiency in unit and integration testing (e.g., JUnit, Mockito)
  • Understanding of authentication protocols like OAuth2 or JWT
  • Working knowledge of Java 8+
Preferred Skills
  • Experience with API Gateways (e.g., AWS API Gateway)
  • Familiarity with messaging systems like Kafka or RabbitMQ
  • Basic understanding of serverless technologies (e.g., AWS Lambda)
  • Interest in evolving DevOps, automation, and cloud-native best practices

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