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BigData Applications Support Analyst

https://www.citi.com/ Logo

Citi

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Location:
United Kingdom , Belfast

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Category:
IT - Administration

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Contract Type:
Not provided

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Salary:

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Job Description:

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.

Job Responsibility:

  • Monitor the platform - Perform daily health checks, watch for issues, and hand over to teams in other regions to maintain 24/7 coverage
  • Troubleshoot problems - Investigate and resolve issues with Hadoop, Spark, databases, and data processing jobs, working with other teams when needed
  • Manage scheduled jobs - Monitor thousands of automated jobs running daily, investigate failures, and coordinate fixes with development teams
  • Ensure data quality - Perform checks and reconciliations to make sure data is accurate and complete for business reporting
  • Improve operations - Work on projects to automate repetitive tasks, reduce manual work, and make the platform more reliable
  • Communicate effectively - Act as the bridge between technical teams and business users, explaining issues in clear, simple terms
  • Handle incidents - Lead problem resolution during critical issues, coordinating with multiple teams while meeting service commitments
  • Share knowledge - Help newer team members learn and grow, sharing your expertise on technical challenges

Requirements:

  • Support experience working in application or platform support roles, keeping production systems running smoothly
  • Linux skills - Comfortable working on the command line, troubleshooting system issues, and understanding how Linux servers work
  • Database & SQL - Good experience writing SQL queries and working with databases like Oracle, PostgreSQL, or MySQL
  • Job scheduling - Experience with tools like Autosys, Control-M, or similar schedulers that run automated jobs
  • Scripting ability - Can write scripts in Python, Perl, or Shell to automate tasks and solve problems
  • Problem-solving mindset - Strong analytical thinking and ability to explain technical issues to non-technical people
  • Education - Degree in Computer Science, IT, Engineering, or equivalent practical experience

Nice to have:

  • Experience specifically with Cloudera Hadoop distributions
  • Big Data knowledge - Hands-on experience with Hadoop, Hive, Spark, or similar distributed data platforms (or strong willingness to learn)
  • Familiarity with monitoring tools like Splunk, Grafana, or enterprise monitoring platforms
  • Knowledge of Kafka or other real-time data streaming technologies
  • Strong Unix/Linux scripting skills for automation
  • Experience with incident management processes and ticketing systems (ServiceNow, JIRA)
  • Exposure to cloud platforms (AWS, Azure, or Google Cloud)
  • Understanding of data quality processes and reconciliation
  • Knowledge of DevOps practices, CI/CD, and version control (Git)
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:
March 26, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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