Senior Java/Kotlin Engineer - Front Office Derivatives

Citi Group; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Citi's Equities Derivatives Technology department is seeking a hands-on Senior Developer to build applications supporting the Derivatives Flow, Delta One, and Exotics desks. You will lead an Agile/AI powered team, drive production‑grade solutions, and collaborate with traders and quants to modernize our technology stack.

You will mentor developers, champion best practices in CI/CD, and help integrate AI tooling across the stack, while ensuring performance, reliability, and observability in cloud

Qualifications

• Bachelor's degree/University degree or equivalent experience.
• Master's degree preferred.
• Ideally in Engineering, Computer Science, Mathematics or Physics.

Responsibilities

• Provide technical leadership to an Agile/AI powered development team, mentoring developers and establishing best practices for coding, testing, CI/CD, AI usage.
• Partner with tech teams, traders and quants to deliver production‑grade applications and services.
• Drive a culture of quality and continuous improvement in SDLC and DevOps, using metrics to boost efficiency.
• Translate complex business requirements into detailed technical specifications.
• Proactively identify, mitigate, and solve complex risks throughout the software development lifecycle.
• Improve system performance, scalability, reliability, observability.

Skills

Java/Kotlin

Cloud platforms

Backend development

Agile/AI powered development

End-user collaboration

AI tooling

Distributed systems

Education

Bachelor's degree

Master's degree preferred

Tools

Kafka

Solace

TIBCO

OpenTelemetry

Elastic Stack / ELK

Grafana

Python

Job description

Citi's Equities Derivatives Technology department is seeking a hands-on Senior Developer to build applications supporting the Derivatives Flow, Delta One, and Exotics desks. You will lead an Agile/AI powered team, drive production‑grade solutions, and collaborate with traders and quants to modernize our technology stack.

You will mentor developers, champion best practices in CI/CD, and help integrate AI tooling across the stack, while ensuring performance, reliability, and observability in cloud