
Applications Support Technical Lead
- Job Req Id:
- 25902544
- Location(s):
- Belfast, Northern Ireland, United Kingdom
- Job Type:
- On-Site/Resident
- Posted:
- Sep. 10, 2025
Discover your future at Citi
Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.
Job Overview
Engineer the future of global finance. 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.
This is a rare opportunity to be at the forefront of the onboarding and support of the next generation of Custody applications and technology as Citi transforms its operating environment to meet growing business demands. You will work as part of the Production Management team along with our development and infrastructure as they deliver resilient, future ready platforms using modern cloud based technology along with SRE tools to integrate with elements of the evolving existing platforms.
You will develop as a subject matter expert supporting the applications and flows in the production environments as our Custody product offering expands to support digital and tokenised assets alongside the existing securities workflow.
Responsibilities:
- Partner with multiple technology teams to ensure appropriate integration of functions to meet goals; identify and define necessary system enhancements; analyze existing system logic, identify problems; and recommend and implements solutions.
- Coordination with Development teams to onboard new applications, establish processes for support, and prioritization of Stability Book of work.
- Provides expertise in area and an advanced level of understanding of the principles of apps support.
- Formulates and defines systems scope and objectives for complex, high impact application enhancements and problem resolution through in-depth analysis and evaluation of complex business processes, systems and industry standards; documents requirements.
- Works closely with Product Owners, Business Analysts and Systems Analysts to determine and document Systems impacts and support requirements
- Identifies risks, vulnerabilities and security issues; communicates impact; proposes risk mitigation options.
Qualifications:
- At least 6 years' relevant experience
- Experience in leading a Production Support unit in a capital market/institutional banking business.
- Proficiency with observability tools such as Grafana and Prometheus.
- Knowledge of DevOps and SRE practices with experience of automation to improve the support of production environments.
- Strong Database skills such as Oracle or MSSQL, preferably Oracle.
- Extensive experience in working with both distributed cloud platforms (e.g., Openshift)
- Exposure to JIRA.
- Experience in Incident and Problem Management, and DR/resiliency activities.
- Experience in onboarding new applications and establish support framework.
- Practical problem solving and strategic thinking skills
- Demonstrated leadership, interpersonal skills and relationship building skills
- Experience working or leading requirement gathering efforts for multiple large development projects at one-time
- Good interpersonal and communication skills
Education:
- Bachelor’s/University degree, Master’s degree preferred
- ITIL certified
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-MR1
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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.
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.
View Citi’s EEO Policy Statement and the Know Your Rights poster.

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