Senior Java Engineer: Global Finance, Hybrid

Citigroup Inc.; Belfast City District; Hybrid; GBP 60,000 - 90,000; Full time

Benefits offered by this job

27 days annual leave

Discretionary annual bonus

Private medical care & Life insurance

Employee assistance program

Pension plan

Paid parental leave

Employee discounts

Learning and development resources

Job summary

Citigroup Inc. in Belfast (Hybrid) seeks an experienced Java developer to design, implement and support trading platform applications. You will work on core services, APIs, and distributed systems with modern tooling, across multi-site teams.

The role emphasizes REST APIs, authentication, messaging systems, and high-performance software, with a hybrid work model and competitive benefits. A Bachelor's degree is required.

Qualifications

• Strong Java developer with hands-on experience.
• REST API and authentication (OAuth/Basic).
• Messaging systems experience (Kafka preferred, RabbitMQ, etc.).
• Experience with SQL databases (Oracle/SQL Server).
• Java Multithreading and Web Services (SOAP/REST).
• Distributed systems development experience.
• Experience with containers (Docker, Kubernetes).

Responsibilities

• Platform Support & Enhancement: Build and maintain common solutions for trading platform monitoring, trade reconciliation, application recovery, and other essential support functions.
• Core Development: Participate in design sessions with the development team across multiple locations.
• Agile SDLC: Evaluate and adopt new tools to improve delivery quality in line with industry trends.
• Continuous Improvement: Analyze existing software and propose design/architecture improvements.
• Cross-functional Collaboration: Communicate requirements and design decisions with stakeholders across teams.
• Production liaison: Collaborate with production support for troubleshooting and debugging.
• Standards: Ensure best practices and coding standards are followed across the lifecycle.
• Documentation: Provide user and technical documentation for applications.
• Performance & Scalability: Ensure applications meet performance targets and scale as needed.
• AI tooling: Utilize AI coding assistants and AI-powered SDLC processes.

Skills

Java development

REST API

OAuth/Basic Authentication

Messaging systems

SQL databases

Java multithreading

Web services

Distributed systems

SFTP

Education

Bachelor's degree in Computer Science/Engineering/IT

Tools

Docker

Kubernetes

Job description

Citigroup Inc. in Belfast (Hybrid) seeks an experienced Java developer to design, implement and support trading platform applications. You will work on core services, APIs, and distributed systems with modern tooling, across multi-site teams.

The role emphasizes REST APIs, authentication, messaging systems, and high-performance software, with a hybrid work model and competitive benefits. A Bachelor's degree is required.