Java Backend Developer

ELLIOTT MOSS CONSULTING PTE. LTD.; Penarth; On-site; GBP 45,000 - 65,000; Full time

Job summary

A consulting firm in the UK is looking for a skilled Java Backend Developer. You will design and maintain scalable backend systems and APIs, implementing best practices for reliability and security. Candidates should have a minimum of 3 years' experience, strong proficiency in Java and Spring Boot, and a solid understanding of microservices and databases. The role involves collaborating with teams and participating in code reviews to ensure quality.

Qualifications

• Minimum 3 years of hands‑on experience in backend development.
• Strong proficiency in Java with Spring / Spring Boot.
• Experience building RESTful APIs and backend services.

Responsibilities

• Design, develop, and maintain scalable and high‑performance backend systems and RESTful APIs.
• Build and enhance microservices using Java and Spring Boot.
• Integrate backend services with relational and/or NoSQL databases and external systems.

Skills

Java

Spring Boot

RESTful APIs

Microservices

Object-Oriented Programming

Git

JUnit

Mockito

Tools

MySQL

PostgreSQL

MongoDB

Maven

Gradle

Job description

Job Description

We are seeking a skilled and motivated Java Backend Developer to design, develop, and maintain scalable backend systems and APIs.

The role involves building high‑performance services, integrating with databases and external systems, and ensuring reliability, security, and code quality through robust testing and best engineering practices.

Key Responsibilities

• Design, develop, and maintain scalable and high‑performance backend systems and RESTful APIs.
• Build and enhance microservices using Java and Spring Boot.
• Integrate backend services with relational and/or NoSQL databases and external systems.
• Ensure application reliability, security, and performance through best practices and testing.
• Write clean, maintainable, and well‑documented code following coding standards.
• Implement authentication, authorization, and API security mechanisms.
• Collaborate with cross‑functional teams to understand requirements and deliver solutions.
• Troubleshoot, debug, and resolve production and non‑production issues.
• Participate in code reviews to ensure quality and knowledge sharing.
• Support CI/CD pipelines and build processes for smooth deployments.

Required Skills & Qualifications

• Minimum 3 years of hands‑on experience in backend development.
• Strong proficiency in Java with Spring / Spring Boot.
• Experience building RESTful APIs and backend services.
• Solid understanding of Object‑Oriented Programming (OOP), data structures, and design patterns.
• Experience with microservices architecture.
• Hands‑on experience with relational and/or NoSQL databases such as MySQL, PostgreSQL, or MongoDB.
• Familiarity with version control systems such as Git. Understanding of API security, authentication, and authorization.
• Experience with testing frameworks like JUnit and Mockito.
• Basic knowledge of CI/CD pipelines and build tools such as Maven or Gradle.
• Strong problem‑solving and debugging skills.