Senior Java Developer, Citi

Citi

Location:
Ireland, Dublin

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Not provided

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Job Description:

The Senior Java Developer is an intermediate-level role responsible for participating in the establishment and implementation of new or revised application systems and programs in coordination with the Technology team. The overall objective is to contribute to applications systems analysis and programming activities, focusing on backend development, large-scale data processing, and API integration.

Job Responsibility:

Design, develop, and maintain backend applications and services, implementing enterprise-grade, large-scale data processing pipelines using Java and Spark
Build and optimize RESTful APIs to support front-end and third-party integrations
Implement business logic, data processing, and system integrations
Work with both SQL and NoSQL databases to ensure efficient data storage and retrieval
Collaborate with front-end developers, product managers, and other stakeholders to deliver high-quality solutions
Ensure the performance, scalability, and security of backend systems
Identify and resolve technical issues, bottlenecks, and bugs
Write clean, maintainable, and well-documented code following best practices
Participate in code reviews, unit testing, and system testing to ensure quality deliverables
Stay updated with emerging backend technologies and apply them to improve systems

Requirements:

Bachelor’s degree in Computer Science, Engineering, or a related field
7+ years of professional experience in Java backend development
Strong proficiency in Java (version 8 or higher) and object-oriented programming
Experience with Spring Framework for building enterprise-grade backend applications
Expertise in designing and developing RESTful APIs with best practices
Proficiency with SQL and big data technologies like Hadoop, Hive, Kafka, or Spark
Experience with version control systems like Git
Knowledge of build tools such as Maven or Gradle
Understanding of Agile/Scrum methodologies

Nice to have:

Familiarity with microservices architecture and design patterns
Knowledge of containerization and orchestration technologies such as Docker, Kubernetes or Openshift
Familiarity with CI/CD pipelines and tools like Jenkins
Experience with database technologies like MySQL, PostgreSQL, MongoDB, or Couchbase
Familiarity with security best practices for backend systems and APIs

What we offer:

Competitive base salary (annually reviewed)
Hybrid working model (up to 2 days working at home per week)
Additional benefits to support you and your family to be well, live well and save well
Inclusive workplace environment where everyone feels comfortable

Additional Information:

Job Posted:
July 09, 2025

Employment Type:

Fulltime

Work Type:

Hybrid work

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Senior Java Developer