Application Senior Support Manager, Citi

Citi

Location:
United Kingdom, Belfast

Category:
IT - Administration

Contract Type:
Not provided

Salary:

Not provided

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Job Description:

Senior Support Manager to lead our Big Data Platform support team. The successful candidate will have a strong background in application support, team management, and collaboration across multiple regions. This role requires a strategic thinker who can drive team performance, ensure seamless platform operations, and foster collaboration with global stakeholders.

Job Responsibility:

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
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
Partners with multiple technology areas and management teams to ensure appropriate integration of functions to meet goals
Works closely with Product Owners, Business Analysts and Systems Analysts to determine and document Systems impacts and support requirements
Considers the implications of the application of technology to the current environment
Identifies risks, vulnerabilities and security issues
communicates impact
proposes risk mitigation options
Acts as advisor or coach to new or lower level analysts
allocates work
Provides in-depth analysis with interpretive thinking to define problems and develop innovative solutions
Directly impacts the business by influencing strategic functional decisions through advice, counsel or provided services
Persuades and influences others through strong and comprehensive communication and diplomacy skills
Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets

Requirements:

Working knowledge of various components and technologies under Cloudera distribution like HDFS, Hive, Impala, Spark, YARN, Sentry, Oozie, Kafka
Very good knowledge on analyzing the bottlenecks on the cluster - performance tuning, effective resource usage, capacity planning, investigating
Perform daily performance monitoring of the cluster - Implement best practices, ensure cluster stability and create/analyze performance metrics
Hands-on experience in supporting applications built in Hadoop
Good knowledge of Microsoft based operating systems
Linux experience
Good SQL experience in any of the RDBMS
Focus on Sybase / Oracle / MSSQL databases
Practical problem solving and strategic thinking skills
Ability to work in a fast-paced environment
Experience working or leading requirement gathering efforts for multiple large development projects at one-time
PowerShell, UNIX shell scripting, Python, Java will be of added advantage
Autosys / CONTROL-M or other schedulers will be of added advantage
Bachelor's/University degree, Master's degree preferred

Nice to have:

PowerShell, UNIX shell scripting, Python, Java
Autosys / CONTROL-M or other schedulers
Master's degree

What we offer:

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

Additional Information:

Job Posted:
September 27, 2025

Employment Type:

Fulltime

Work Type:

Hybrid work

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Application Senior Support Manager