Java (Kotlin) Developer (Agile, Test-Driven)

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.

Equities Tech

Equities Technology at Citi is undertaking a bold, multi‑year transformation to build a best‑in‑class global platform across execution, prime, clearing and cross‑product margining. We are re‑engineering our technology estate to achieve world‑leading performance and resiliency, enabling new capabilities in advanced execution, global market connectivity, and modernised post‑trade, clearing and margin processes. Our ambition is to deliver a seamlessly integrated, highly automated platform that drives outstanding client outcomes and accelerates growth across our global franchise. As part of the team, you’ll collaborate closely with high‑calibre engineers and deeply engaged business and product partners - working together to define and deliver the next generation of Equities technology at Citi.

Prime Brokerage 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 Include (but not limited to):

• Ownership and delivery on a variety of components (Java/Kotlin) within the Core Prime Brokerage platform.
• Hands‑on Development.
• Provide technical leadership for an agile development team, championing best practices in Continuous Integration and Continuous Deployment (CI/CD).
• Foster a culture of quality through developer‑led automated testing initiatives.
• Drive continuous improvement in SDLC, agile and DevOps processes using key performance indicators, including DORA metrics, to enhance team efficiency and software delivery.
• Lead design, planning and estimation discussions within the team and with partners from across the department along with business stakeholders.
• Conduct high‑level system analysis and architecture design, ensuring alignment with business requirements, technical standards and the overall architecture blueprint.
• Facilitate requirement gathering and translate complex business needs into technical specifications.
• Oversee the creation and maintenance of project and technical documentation.
• Identify and mitigate risks throughout the SDLC, proposing solutions to complex problems.
• Utilize advanced knowledge of system flow and develop standards for coding, testing, debugging, and implementation.
• Oversee production support processes, collaborating with operations and business stakeholders.
• Analyze issue patterns to drive improvements.
• Guide documentation efforts, maintain on‑call rotations and lead post‑mortems.
• Lead efforts to resolve root‑causes and enhance performance, scalability, and reliability.
• Provide technical leadership and serve as advisor or coach to mid‑level developers, analysts and grads.

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)

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

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 resources

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.

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.