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The Apps Support Lead Analyst is a seasoned professional role providing Level 2 (L2) production support directly to Front Office users within Citi Japan's Equities business. This position requires trade floor presence and hands-on technical expertise to diagnose and resolve production system issues, supporting mission-critical trading applications in a high-pressure, real-time trading environment where system availability and performance directly impact business revenue. The role applies in-depth disciplinary knowledge, contributing to the development of new techniques and the improvement of processes and workflows for the area or function. Integrates subject matter and industry expertise within a defined area. Requires in-depth understanding of how areas collectively integrate within the sub-function as well as coordinate and contribute to the objectives of the function and overall business. Evaluates complex and variable issues with substantial potential impact, where development of an approach/taking of an action involves weighing various alternatives and balancing potentially conflicting situations using multiple sources of information. Requires excellent analytical skills in order to filter, prioritize and validate potentially complex and dynamic material from multiple sources. Strong communication and diplomacy skills are required, with excellent business-level English proficiency essential and Japanese language ability highly valued. Regularly assumes informal/formal leadership role within teams. Involved in coaching and training of new recruits. Significant impact in terms of project size, geography, etc. by influencing decisions through advice, counsel and/or facilitating services to others in area of specialization. Work and performance of all teams in the area are directly affected by the performance of the individual. The role is resident and requires direct support on the trading floor.
Job Responsibility
Provide Level 2 production support for Equities trading applications, acting as the primary technical escalation point for trading-impacting incidents
Respond to critical incidents during market hours, executing rapid diagnosis and restoration activities to minimize business disruption
Maintain hands-on trade floor coverage, delivering direct support to Front Office users in a high-pressure, real-time environment
Serve as a key liaison between business users and Technology (development, infrastructure, vendors), ensuring timely triage, escalation, and resolution
Perform deep technical troubleshooting across applications and environments, including analysis of logs and runtime evidence to identify root cause and remediation paths
Proactively monitor production using enterprise tooling (e.g., ITRS Geneos) to detect anomalies and prevent outages
Execute operational routines including start-of-day checks, continuous monitoring, and regional handover to support global coverage
Support production integrity activities, including same-day risk reconciliations and data consistency validation across trading systems
Manage change, deployment, and release execution using CI/CD and Change Management controls, including rollback readiness and zero-impact implementation practices
Drive service stability through post-incident review, problem management input, and continuous improvement initiatives across stability/efficiency/effectiveness
Develop and maintain support documentation, runbooks, and troubleshooting guides
contribute to operating standards and procedures
Communicate clearly with stakeholders under pressure, including impact assessment, timely escalation per SLAs, and concise business-facing updates in business-level English (Japanese a plus)
Provide guidance/mentoring to junior analysts
act as an SME and contribute to knowledge transfer across global teams
Adhere to firm-wide control standards, supporting audit/regulatory responses as required and escalating risks/issues appropriately
Requirements
5–10 years’ experience in L2 application production support in a securities/investment bank or financial services trading environment
Demonstrated experience providing trade floor support to Front Office users in Equities or capital markets
Excellent business-level English communication (written/verbal)
Japanese language capability desirable
Proven ability to prioritize and multi-task effectively under extreme time pressure in a real-time trading environment
Strong diagnostic skills including analysis of application/server logs, GC logs, thread/heap dumps, and traces
Hands-on experience with monitoring/alerting platforms (e.g., ITRS Geneos, Grafana, or equivalents)
Working knowledge of Change Management and deployment practices, including CI/CD pipelines and rollback procedures
Experience with middleware messaging technologies (IBM MQ, Solace, Kafka, Tibco EMS, or similar)
Familiarity with incident/problem management tooling (e.g., ServiceNow/JIRA) and structured RCA/problem management
Domain/platform exposure: OMS/EMS systems
Unix/Linux + SQL troubleshooting
FIX/trading workflow knowledge
development background beneficial
Local Equity market and regional markets knowledge
Experience applying Site Reliability Engineering (SRE) practices to drive continuous production stability improvements