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BigData Applications Support Analyst – support Citi’s global Big Data platform in Belfast, hybrid work.
Join a worldwide team to monitor, troubleshoot, and automate Hadoop, Spark, Kafka operations.
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, you’ll have the opportunity to 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 .
What We do / The Team:
We're looking for a talented Support Engineer to join our global team supporting a large-scale data platform that processes critical business information across our organization.
The Platform:
You’ll be supporting a modern Big Data platform built on industry-standard technologies including Hadoop, Hive, Impala, Spark, Kafka, and other open-source tools. This platform handles massive volumes of data daily, supporting analytics, reporting, and business-critical operations.
The Team:
You’ll work as part of a global support team with colleagues in Singapore, India, UK, and Canada. We operate a follow-the-sun model, ensuring 24/7 platform availability. The team collaborates closely with developers, infrastructure teams, and business users to keep systems running smoothly and continuously improve our operations.
Why Join Us:
- Work with cutting-edge Big Data technologies at enterprise scale
- Collaborate with talented engineers across the globe
- Make a real impact on business operations
- Focus on automation and reducing manual work
- Continuous learning and career development opportunities
Role Overview/What will you do:
- • 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
Key Skills and Experience required –
- • 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
Any Beneficial / Nice to have skills and experience:
- • 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’ll provide you:
- - 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.
Job Family Group:
Technology
Job Family:
Applications Support
Time Type:
Full time
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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