Custody Support Applications Support - Assistant Vice President

Citigroup Inc.; Belfast City District; Hybrid; GBP 70,000 - 110,000; Full time

Benefits offered by this job

27 days annual leave

Performance related bonus

Private Medical Care & Life Insurance

Employee Assistance Program

Pension Plan

Parental Leave

Employee discounts

Learning and development resources

Job summary

Citi is seeking a Global Custody Production Support professional to ensure stability and reliability of custody and settlement platforms. You will apply SRE principles, automation, and observability to reduce toil and drive continuous service improvements.

The role focuses on distributed systems, cloud-native tech, and cross-functional teamwork in a fast-paced, global environment. Hybrid working model available, with opportunities across EMEA, APAC, and the Americas.

Qualifications

• Experience in production support for enterprise-scale distributed applications in financial services or mission-critical environments.
• Proven track record coordinating major incident responses and cross-functional collaboration.
• Strong analytical and structured troubleshooting approach.

Responsibilities

• Lead investigation and resolution of production incidents across multiple apps and domains.
• Communicate outage impacts, recovery plans, and risk assessments to stakeholders.
• Collaborate with Development, Infra, and Architecture to improve resilience and performance.
• Perform recovery testing and support enterprise resiliency programs.
• Participate in Incident, Problem, Change, Availability, and Capacity Management processes.
• Maintain current and effective operational procedures and knowledge articles.

Skills

Incident Management

SRE

Platform Support

Automation

Stakeholder Management

Problem Solving

Communication

Global Collaboration

Education

Bachelor's Degree or equivalent experience

Master's Degree preferred

ITIL Cloud certifications advantageous

Tools

SQL Server

Oracle

Linux

Monitoring/Observability

CI/CD tooling

Kubernetes/OpenShift

Job description

Are you looking for a career move that will put you at the heart of a global financial institution? Then bring your skills in analysis, problem solving and communication to Citi’s Custody Support team.

Bring your expertise in application support, reliability engineering, cloud technologies, and operational excellence to Citi's Global Custody Technology organization. You will play a critical role in supporting highly available, mission-critical custody and settlement platforms that serve institutional clients across global markets.

By joining Citi, you will become part of a global organization whose mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress. You will work alongside colleagues across EMEA, APAC, and the Americas, helping deliver resilient and scalable technology solutions that underpin one of the world's largest custody businesses.

Team/Role Overview:

The successful candidate will join the Global Custody Production Support organization and be responsible for ensuring the stability, reliability, and operational excellence of a suite of business-critical custody and settlement applications. The role focuses on distributed systems, cloud-native technologies, microservices, and modern observability platforms supporting securities processing and settlement functions.

This position combines traditional application support responsibilities with Site Reliability Engineering (SRE) principles, automation, resiliency engineering, and operational risk management. The ideal candidate will be passionate about improving platform reliability, reducing operational toil, and driving continuous service improvements through engineering-led solutions.

What you’ll do:

• Lead and coordinate investigation and resolution of production incidents across multiple applications and technology domains.
• Confidently communicate outage impacts, recovery plans, and risk assessments to stakeholders across Technology, Operations, and Business teams.
• Partner with Development, Infrastructure, and Architecture teams to improve system resilience, performance, supportability, and operational readiness.
• Execute application-level recovery testing and support enterprise resiliency programs.
• Participate in Incident, Problem, Change, Availability, and Capacity Management processes.
• Ensure operational procedures, support documentation, and knowledge articles remain current and effective.

What we’ll need from you:

• Experience supporting enterprise-scale distributed applications within a financial services or mission-critical technology environment.
• Proven experience in Production Support, Site Reliability Engineering (SRE), Platform Support, or similar technical operations roles.
• Demonstrated experience managing or coordinating major incident responses.
• Strong analytical and problem-solving capabilities with a structured approach to troubleshooting complex issues.
• Experience leading cross-functional teams during high-pressure production incidents.
• Strong stakeholder management and communication skills, including interaction with senior management and business partners.
• Ability to operate effectively in a fast-paced, global environment.
• Demonstrated ability to identify opportunities for automation and continuous improvement.
• Strong collaboration, relationship-building, and influencing skills.
• Service-oriented mindset with a commitment to operational excellence.
• Passion for learning and adopting emerging technologies that enhance support effectiveness and innovation.

Technical Skills:

• Microsoft SQL Server (SQL, Stored Procedures, Query Optimization)
• Oracle or other enterprise relational databases
• Database performance analysis and tuning
• Linux / Unix fundamentals
• Application troubleshooting and performance diagnostics
• Incident and Problem Management processes
• Monitoring and observability platforms

Desirable:

• OpenShift / Kubernetes
• Cloud technologies (Google Cloud Platform, Azure, AWS)
• Microservices and distributed architectures
• Event-driven architectures and messaging platforms (Kafka, MQ)
• Elastic Stack (ELK)
• Grafana
• Google Cloud Observability (GCO)
• Python, Shell, or PowerShell scripting
• CI/CD tooling and deployment automation
• Infrastructure as Code concepts
• API monitoring and troubleshooting
• AIOps and intelligent monitoring platforms

Education:

• Bachelor's Degree or equivalent experience required.
• Master's Degree preferred.
• ITIL Foundation, Cloud Certifications, or relevant industry certifications are advantageous.

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.

#LI-BH3

Job Family Group:

Technology

Job Family:

Applications Support

Time Type:

Full time

Most Relevant Skills

Please see the requirements listed above.

Other Relevant Skills

For complementary skills, please see above and/or contact the recruiter.

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.

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