Senior Java Developer

Discover your future at Citi

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Job Overview

Summary

As a Senior Java Backend Developer, you will be responsible for building high-performance, resilient, and scalable backend services that power our critical applications. You will work closely with product managers, front-end developers, and other stakeholders to understand requirements, design solutions, and deliver high-quality software. This role requires strong technical leadership, problem-solving skills, and a passion for creating exceptional software.

Key Responsibilities

• Software Development:Design, develop, test, deploy, and maintain high-quality, scalable, and resilient backend services and APIs using Java and related technologies.
• Technical Leadership:Provide technical guidance and mentorship to junior and mid-level developers, conduct code reviews, and promote best practices in software development.
• System Design:Collaborate with architects and other senior developers to design robust, scalable, and secure backend architectures.
• Performance Optimization:Identify and resolve performance and scalability issues, ensuring optimal application performance and responsiveness.
• Code Quality:Uphold and improve code quality through rigorous testing, documentation, and adherence to coding standards.
• Troubleshooting & Support:Diagnose and resolve complex technical issues, providing production support when necessary.
• Collaboration:Work effectively within an Agile/Scrum team, participating in all phases of the software development life cycle.
• Innovation:Stay up-to-date with emerging technologies and industry trends, evaluating and recommending new tools and technologies to improve development processes and product quality.

Required Qualifications

• Education:Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
• Experience: 8+ years of professional experience in backend software development with a strong focus on Java.
• Java Expertise:Deep understanding of Java 8+ and its ecosystem, including Spring Framework (Spring Boot, Spring Cloud, Spring Data JPA, etc.).
• Database Knowledge:Strong proficiency with relational databases (e.g., PostgreSQL, MySQL, Oracle) and ORM frameworks (e.g., Hibernate, JPA). Experience with NoSQL databases (e.g., MongoDB, Cassandra) is a plus.
• Cloud Platforms:Experience with cloud platforms (e.g., AWS, Azure, Google Cloud Platform) and related services.
• Microservices:Solid understanding and experience with microservices architecture and design patterns.
• Testing:Experience with unit, integration, and end-to-end testing frameworks (e.g., JUnit, Mockito).
• Version Control:Proficient with Git and continuous integration/continuous delivery (CI/CD) pipelines.
• Problem-Solving:Excellent analytical and problem-solving skills with attention to detail.
• Communication:Strong written and verbal communication skills, with the ability to articulate complex technical concepts to both technical and non-technical audiences.

Preferred Qualifications

• Experience with message brokers (e.g., Kafka, RabbitMQ).
• Familiarity with containerization technologies (e.g., Docker, Kubernetes).
• Knowledge of asynchronous programming and reactive systems.
• Understanding of security best practices in application development.