Java Developer

We are seeking a talented and motivated Java Developer to join our core engineering team. In this role, you will design, develop, test, and maintain robust, high-performance, and scalable enterprise applications. You will collaborate closely with cross-functional teams, including product managers, architects, UI/UX designers, and DevOps engineers, to deliver high-quality software solutions that meet business requirements and technical standards.

Key Responsibilities

Software Design &

• Development

• Design, build, and maintain scalable, reliable, and testable Java/J2EE applications and microservices.
• Write clean, maintainable, efficient, and well-documented code adhering to object-oriented programming (OOP) principles and SOLID design patterns.
• Design and implement RESTful APIs, SOAP services, and event-driven messaging systems.
• Optimize application performance, throughput, latency, and memory utilization.

Architecture &

• System Integration

• Participate in architectural discussions and system design reviews.
• Integrate backend services with relational (e.g., PostgreSQL, Oracle, MySQL) and NoSQL (e.g., MongoDB, Cassandra, Redis) databases.
• Integrate enterprise systems with message brokers (e.g., Apache Kafka, RabbitMQ, IBM MQ).
• Ensure seamless integration with third-party APIs and microservice ecosystems.

Testing &

• Quality Assurance

• Implement comprehensive automated unit and integration tests using frameworks such as JUnit, Mockito, and Testcontainers.
• Participate in peer code reviews to ensure adherence to software engineering standards, security practices, and quality metrics.
• Proactively identify bottlenecks, address bugs, and remediate security vulnerabilities.

DevOps &

• Deployment

• Collaborate with DevOps teams to design and optimize Continuous Integration and Continuous Deployment (CI/CD) pipelines (e.g., Jenkins, GitLab CI, GitHub Actions).
• Package and deploy containerized applications using Docker and orchestrate them via Kubernetes/OpenShift.
• Monitor application health and system performance using observability tools (e.g., Prometheus, Grafana, ELK Stack, Splunk).
• Required Qualifications &
  • Skills

Technical Skills

• Core Java &
  • Frameworks:

  • Strong proficiency in Java (Java 11 / 17 / 21) and Core Java concepts (Multithreading, Concurrency, Collections, Generics, Stream API).
  • Hands-on experience with Spring Framework ecosystem (Spring Boot, Spring MVC, Spring Data JPA, Spring Security, Spring Cloud).

• Database Management &
  • ORM:

  • Solid understanding of relational database design, SQL indexing, and query optimization (PostgreSQL, Oracle, or MySQL).
  • Experience with Object-Relational Mapping (ORM) tools (Hibernate, JPA, MyBatis).
  • Familiarity with NoSQL databases (MongoDB, DynamoDB, Redis) is a plus.

• Microservices &
  • API Design:

  • Experience designing, securing, and implementing RESTful APIs (OpenAPI/Swagger) and Microservices architecture.
  • Familiarity with API Gateways, Service Discovery, and Circuit Breaker patterns.

• Messaging &
  • Event Streaming:

  • Experience with message queues and event streaming platforms such as Apache Kafka, RabbitMQ, or ActiveMQ.

• Build Tools &
  • Version Control:

  • Experience with build and dependency management tools (Maven, Gradle).
  • Proficiency with Git and modern branching workflows (Gitflow, trunk-based development).

  Professional &
  • Educational Qualifications

  • Education: Bachelor’s or Master’s degree in Computer Science, Software Engineering, Information Technology, or equivalent practical experience.
  • Experience: 3 years of professional software development experience in Java-based environments (Mid-level) or 5 years (Senior-level).
  • Problem Solving: Strong analytical, problem-solving, and algorithmic thinking capabilities.
  • Communication: Excellent verbal and written communication skills with the ability to collaborate effectively across distributed teams.
  • Preferred / Nice-to-Have Skills
  • Experience with cloud platforms (AWS, Azure, or Google Cloud Platform).
  • Hands-on experience with containerization (Docker) and container orchestration (Kubernetes, OpenShift).
  • Knowledge of secure coding practices (OWASP Top 10) and static analysis tools (SonarQube, Checkmarx).
  • Familiarity with Agile/Scrum methodologies and tools (Jira, Confluence).
  • Knowledge of reactive programming (Project Reactor, RxJava, Spring WebFlux) is an advantage.

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  Job Family Group

  Technology

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  Job Family

  Applications Development

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  Time Type

  Full time

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  Most Relevant Skills

  Please see the requirements listed above.

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

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  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.