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# OTC Derivatives & Margin Applications Support - Technical Lead - Vice President - Citi

- **Company:** Citigroup Inc.
- **Location:** Belfast, UK (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Relational Databases, Database Queries, Distributed Systems, Middleware, Monitoring of Systems, Python (Programming Language), Enterprise Messaging Systems, Microsoft SQL Server, Oracle (Applications), Shell Script, Software Deployment, Software Engineering, Scripting, Grafana, Apache Kafka, Splunk
- **Published:** August 12, 2026
- **Apply:** https://www.reed.co.uk/jobs/otc-derivatives-margin-applications-support-technical-lead-vice-president-citi/57233744

## About the Role

* Strong functional knowledge of Investment banking and OTC
 * Derivatives & Margin business.
 * Proven experience supporting business critical applications in a global markets or trading environment.
 * Strong SQL skills with experience working with relational databases (e.g. Oracle, SQL Server).
 * Experience with middleware and messaging technologies such as MQ and Kafka.
 * Demonstrable scripting ability in Python or shell scripting for automation and analysis.
 * Experience with enterprise monitoring and observability tools such as ITRS Geneos, Splunk, Grafana, or equivalent.
 * Strong analytical and troubleshooting skills, with the ability to operate effectively under pressure.
 * Excellent verbal and written communication skills, able to translate complex technical issues for both technical and non technical stakeholders.
 * Familiarity with ITIL frameworks and best practices for incident, problem, and change management.

## Description

We are searching for a highly motivated and enthusiastic technical senior for OTC Derivatives & Margin Team- based in Belfast. We work in partnership with the business running the application production platform, providing quick resolutions to their issues, driving stability, efficiency and effectiveness improvements to help us and the business succeed. The role will entail working closely with senior business partners, developing application knowledge, driving and tracking projects around stability and service improvement, incident resolution and follow-up activities and providing strategic technical solutions., * Production Support & Stability

 * Provide timely, high quality L2 technical support for OTC Derivatives & Margin platforms, ensuring minimal business impact during incidents.
 * Investigate, diagnose, and resolve complex application, data, and infrastructure issues across distributed systems.
 * Monitor system health and performance, proactively identifying risks and addressing issues before they impact business.
 * Support market cut offs and time critical workflows.

 * Incident & Problem Management
 * Own the full incident lifecycle from detection through resolution, including stakeholder communication.
 * Lead root cause analysis and post incident reviews, driving permanent remediation and risk reduction.
 * Partner with development teams to prioritise fixes and resilience improvements.

Technical Leadership & Collaboration:

 * Work closely with Operations, Business Analysts, Developers, and Infrastructure teams across regions.
 * Provide technical mentorship and guidance to junior support engineers.
 * Influence application design and deployment decisions to improve stability, observability, and operability in production.
 * Participate in a rotational on call schedule, including weekend support, for critical systems.

Continuous Improvement & Engineering Excellence:Develop and maintain high quality support documentation, runbooks, and knowledge base articles.

 * Drive automation initiatives using scripting and tooling to reduce manual intervention and operational risk.
 * Assist with application deployments, upgrades, and disaster recovery testing.
 * Identify and implement opportunities to improve monitoring, alerting, and support efficiency.