Senior Java Full Stack Developer

The Role

Senior Java Full Stack Developer to contribute to the design, implementation, and evolution of complex, enterprise‑grade application systems. This role sits at the intersection of software engineering excellence and financial services technology, requiring a practitioner who can operate with a high degree of autonomy while driving outcomes across the full software development lifecycle. The ideal candidate brings deep expertise in Java‑based backend development, modern frontend frameworks, cloud‑native architectures, and event‑driven microservices. This position offers the opportunity to serve as a subject matter expert and trusted advisor, shaping technical direction within a team operating at scale in one of the world’s leading financial institutions.

Responsibilities

• Design, develop, and implement complex full‑stack application systems across the entire software development lifecycle.
• Build scalable microservices using Spring Boot and event‑driven patterns, ensuring alignment with cloud‑native development principles, containerization (Docker), and orchestration platforms (Kubernetes, OpenShift).
• Develop and maintain RESTful APIs and service‑oriented integrations, ensuring high performance, reliability, and secure design through the application of OAuth2, JWT, and encryption standards.
• Monitor and control all phases of development including analysis, design, construction, and testing; proactively identify risks and apply sound engineering judgment to resolve complex technical issues.
• Collaborate with business stakeholders and cross‑functional technology teams to gather requirements, recommend advanced programming solutions, and translate business needs into robust technical implementations.
• Define and enforce development standards, operating procedures, and best practices; contribute to post‑implementation reviews to validate system design, security posture, and business functionality.
• Optimize application performance through parallel processing, multi‑threading, and synchronization strategies; leverage algorithms, data structures, and established design patterns to deliver production‑grade solutions.
• Establish and maintain CI/CD pipelines using version control systems (GitHub, Bitbucket) and automation tooling to support continuous delivery and deployment practices.
• Serve as a subject matter expert and technical advisor to senior stakeholders and junior team members; provide mentorship and coaching to less experienced analysts and developers.
• Assess and manage risk in all engineering decisions, ensuring compliance with applicable policies, regulatory requirements, and ethical standards, with full transparency in reporting and escalation.

Qualifications

• 5+ years’ experience in application development roles with demonstrated full‑stack engineering expertise across the complete software development lifecycle.
• Deep proficiency in Java application development, including strong command of object‑oriented programming (OOP), data structures, algorithms, advanced Java concepts, and design patterns.
• Proven experience with Spring Boot and microservices architecture, including design and implementation of RESTful services, event‑driven services, and Service‑Oriented Architecture (SOA) patterns.
• Hands‑on experience with frontend frameworks (Angular and/or React) and the ability to build and integrate modern, responsive web application interfaces with backend services.
• Proficiency with both relational databases (SQL Server, Oracle) and non‑relational databases, along with experience using messaging systems such as Kafka, Solace, and JMS.
• Practical knowledge of security implementation including OAuth2, JWT, and encryption, combined with experience in system performance optimization techniques including multi‑threading and parallel processing.
• Experience with containerization and orchestration technologies, including Docker, Kubernetes, and OpenShift, and familiarity with cloud‑native application development principles.
• Proficiency with version control systems (GitHub, Bitbucket) and CI/CD pipelines; experience with AI‑powered development tools such as GitHub Copilot is a plus.
• Familiarity with Python, Generative AI, or Agentic AI frameworks is a big plus.
• Experience operating within regulated financial services environments and adhering to compliance and risk management standards is preferred.

Education

• Bachelor’s degree in Computer Science, Software Engineering, or a related equivalent technical experience.

This job description provides a high‑level review of the types of work performed. Other job‑related duties may be assigned as required.

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.