Java Developer with Kotlin (Prime Brokerage Technology)

Citibank (Switzerland) AG; Belfast City District; Hybrid; GBP 60,000 - 95,000; Full time

Benefits offered by this job

Hybrid work model

Job summary

Citi in Belfast is seeking a Java Developer with Kotlin to join Prime Brokerage Technology. You will own and develop core components of our Prime Brokerage platform using Java and Kotlin, and provide technical leadership to an agile team.

The role emphasizes quality, SDLC, DevOps, and collaboration with business stakeholders. You will translate complex requirements, help drive architecture decisions, and contribute to production support and system reliability. Hybrid work up to 2 days per week.

Qualifications

• Java and TDD are essential for this role.
• Experience with a mix of additional technologies is a plus.
• Strong in software development and agile practices.

Responsibilities

• Own and develop core components for the Prime Brokerage platform using Java/Kotlin.
• Provide technical leadership to an agile team, mentoring developers and establishing best practices for coding, testing, and CI/CD.
• Drive a culture of quality and continuous improvement in SDLC and DevOps, using metrics like DORA.
• Lead system architecture, design and estimation discussions with technical teams and stakeholders.
• Translate complex business requirements into detailed technical specifications.
• Oversee documentation, risk mitigation, and production support for improved performance and reliability.

Skills

Java

Kotlin

Test-Driven Development

Cloud Technologies

Leadership

Education

Bachelor's degree or equivalent experience

Tools

Kubernetes

OpenShift

Kafka

Solace

TIBCO

SQL Server

Trino

MongoDB

S3

OpenTelemetry

Elastic Stack

Grafana

Job description

## Java Developer with Kotlin (Prime Brokerage Technology)Apply: Hybrid: Belfast United Kingdom: Full time: Posted Today: 261001420**Discover your future at Citi**Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact. **Job Overview**Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. Prime Brokerage Technology provides solutions that underpin the operations of our clients and traders that provide the foundation of our Prime Finance business. This is an area of great opportunity and is a major growth target for Citi – with technology providing the key to unlock this potential. **Responsibilities:*** Own and develop core components for the Prime Brokerage platform using Java/Kotlin.* Provide technical leadership to an agile team, mentoring developers and establishing best practices for coding, testing, and CI/CD.* Drive a culture of quality and continuous improvement in SDLC and DevOps, using metrics like DORA to boost efficiency.* Lead system architecture, design, planning, and estimation discussions with technical teams and business stakeholders.* Translate complex business requirements into detailed technical specifications.* Oversee the creation and maintenance of all project and technical documentation.* Proactively identify, mitigate, and solve complex risks throughout the software development lifecycle.* Manage production support, analyze issue patterns, and lead efforts to improve system performance, scalability, and reliability. **Technical Experience*** Java & Test-Driven Development are essential.* Experience in any number of additional technologies (listed below) is advantageous:* Kotlin* Cloud Technologies (Kubernetes, Open Shift)* Messaging Technologies (Kafka, Solace, TIBCO)* Database / Data Store / Data Query Technologies (SQL Server, Trino, Mongo, S3)* Observability Technologies (OpenTelemetry, Elastic Stack / ELK, Grafana)**Recommended Qualifications:*** Proven relevant experience in Apps Development or systems analysis role* Extensive experience system analysis and in programming of software applications* Experience in managing and implementing successful projects* Subject Matter Expert (SME) in at least one area of Applications Development* Ability to adjust priorities quickly as circumstances dictate* Demonstrated leadership and project management skills* Consistently demonstrates clear and concise written and verbal communication* Bachelor’s degree/University degree or equivalent experience. Master’s degree preferred**What we’ll provide you**By joining Citi, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as:· 27 days annual leave (plus bank holidays)· A discretional annual performance related bonus· Private Medical Care & Life Insurance· Employee Assistance Program· Pension Plan· Paid Parental Leave· Special discounts for employees, family, and friends· Access to an array of learning and development resourcesVisit our Global Benefits page to learn more.Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day. We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive. #LI-MR7