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Java Developer, Officer

Citigroup

Java Developer, Officer

Citigroup

BELFAST, United Kingdom

·

On-site

·

Full-time

·

2w ago

We are looking for a highly skilled and experienced Senior Java Developer to join our engineering team. The ideal candidate will be responsible for designing, developing, and maintaining high-performance, scalable, and resilient applications using modern Java technologies. This role requires strong technical expertise, a passion for problem-solving, and the ability to contribute significantly to our product development lifecycle, from concept to deployment. The Senior Java Developer will also mentor junior team members and contribute to architectural discussions.

Key Responsibilities

  • Design, develop, and maintain robust, scalable, and high-performance backend applications and services using Java and the Spring ecosystem (Spring Boot, Spring Framework).
  • Write clean, efficient, well-documented, and testable code following best practices and design patterns.
  • Collaborate with product owners, architects, and other developers to understand requirements, define technical specifications, and deliver innovative solutions.
  • Participate in all phases of the software development lifecycle, including analysis, design, development, testing, deployment, and support.
  • Optimize application performance, identify bottlenecks, and implement solutions to ensure high availability and responsiveness.
  • Conduct code reviews, provide constructive feedback, and ensure adherence to coding standards and architectural guidelines.
  • Troubleshoot and debug complex issues in development and production environments.
  • Mentor junior developers, share knowledge, and contribute to a culture of continuous learning and improvement.
  • Stay up-to-date with emerging technologies, industry trends, and best practices in Java development and software engineering.

Required Qualifications

  • Bachelor's or Master's degree in Computer Science, Software Engineering, or a related technical field.
  • Professional experience in Java development.
  • Strong expertise in Core Java, including multithreading, data structures, algorithms, and object-oriented design principles.
  • Extensive experience with Spring Framework and Spring Boot for building microservices and RESTful APIs.
  • Solid understanding and hands-on experience with relational databases (e.g., PostgreSQL, Oracle, MySQL, SQL Server), including advanced SQL, schema design, and ORM frameworks (e.g., Hibernate, JPA).
  • Experience with building and consuming RESTful web services.
  • Proficiency with build tools such as Maven or Gradle.
  • Experience with version control systems, particularly Git.
  • Familiarity with Agile development methodologies (Scrum, Kanban).
  • Strong problem-solving skills, attention to detail, and ability to work independently and as part of a team.
  • Excellent communication skills, both written and verbal.

Preferred Qualifications

  • Experience with NoSQL databases (e.g., MongoDB, Cassandra, Redis).
  • Familiarity with cloud platforms (e.g., AWS, Azure, GCP) and containerization technologies (e.g., Docker, Kubernetes).
  • Experience with message brokers (e.g., Kafka, RabbitMQ).
  • Knowledge of testing frameworks (e.g., JUnit, Mockito) and experience with Test-Driven Development (TDD).
  • Understanding of CI/CD pipelines and tools (e.g., Jenkins, GitLab CI, GitHub Actions).
  • Experience with performance tuning and optimization of Java applications.
  • Familiarity with front-end technologies (e.g., JavaScript, React, Angular) is a plus, but not required for this backend-focused role.

Job Family Group:

Technology

Job Family:

Applications Development

Time Type:

Full time

Most Relevant Skills

Please see the requirements listed above.

Other Relevant Skills

For complementary skills, please see above and/or contact the recruiter.

Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.

If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi.

View Citi’s EEO Policy Statement and the Know Your Rights poster.

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About Citigroup

Citigroup

Citigroup

Public

Citigroup Inc. or Citi is an American multinational investment bank and financial services company based in New York City. The company was formed in 1998 by the merger of Citicorp, the bank holding company for Citibank, and Travelers; Travelers was spun off from the company in 2002.

10,001+

Employees

New York City

Headquarters

Reviews

3.3

4 reviews

Work Life Balance

3.0

Compensation

3.2

Culture

2.8

Career

2.5

Management

2.7

35%

Recommend to a Friend

Pros

Compensation increases for investment banking roles

Legitimate investment banking employer

Internship opportunities available

Cons

Unclear career progression paths

Limited meaningful experience in internships

Compensation raises lower than competitors

Salary Ranges

28 data points

Mid/L4

Senior/L5

Staff/L6

Mid/L4 · Business Risk Intermediate Analyst

1 reports

$77,165

total / year

Base

$67,100

Stock

-

Bonus

-

$77,165

$77,165

Interview Experience

5 interviews

Difficulty

2.8

/ 5

Duration

14-28 weeks

Experience

Positive 0%

Neutral 40%

Negative 60%

Interview Process

1

Application Review

2

Recruiter Screen

3

Programming Assessment

4

Hiring Manager Interview

5

Panel/Superday Interviews

6

Final Decision

Common Questions

Technical Knowledge

Case Study

Behavioral/STAR

Past Experience

Culture Fit