Java with Kotlin Developer

CompanyUbique Systems

LocationBurgess Hill, England, United Kingdom

Posted At1/28/2026

UK Visa Sponsorship Analytics

Occupation Type

Programmers and software development professionals

Occupation Code Skill LevelHigher Skilled

Sponsorship Salary Threshold

£54,700 (£28.05 per hour)

Occupation rate applies

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Description

As a Java with Kotlin Developer, you will design, develop, and maintain backend services and applications using modern Java and Kotlin frameworks. You’ll collaborate with product owners, architects, and fellow engineers to deliver high-quality code, participate in code reviews, and improve engineering standards.

Key Responsibilities

Develop and enhance backend systems using Java and Kotlin
Write clean, maintainable, and efficient code following best practices
Collaborate with DevOps to support CI/CD pipelines and automated testing
Participate in architectural discussions and suggest improvements
Troubleshoot, debug, and resolve performance issues
Review code and mentor junior engineers
Contribute to API design and integration with frontend services

Required Skills & Experience

Strong experience in Java (8+)
Kotlin solid practical experience
Experience with Spring Framework (Spring Boot, Spring MVC, etc.)
Good understanding of RESTful API design and microservices architecture
Familiarity with SQL databases (e.g., PostgreSQL, MySQL)
Knowledge of version control systems (e.g., Git)
Experience with unit/integration testing frameworks (e.g., JUnit, MockK)
Ability to write effective technical documentation
Excellent communication and teamwork skills