About the Team: Data Solutions Technology strives to provide measurable competitive advantage to our business by delivering high quality, innovative and cost effective reference data technology and operational; solutions in order to meet the needs of the business, our clients, our regulators and stakeholders

Olympus is a next generation Data Fabric to streamline data sources across ICG and enable industry-leading analytics, client, regulatory, surveillance, supervisory, risk & finance reporting and data science solutions that are Accurate, Reliable, Relevant, Consistent, Complete, Scalable, Timely, Secure, Nimble

Olympus is built on Big data platform and technologies under Cloudera distribution like HDFS, Hive, Impala, Spark, YARN, Sentry, Oozie, Kafka

Our team interfaces with a vast client base and works in close partnership with Operations, Development and other technology counterparts running the application production platform, providing quick resolutions and timely communications to their issues, and driving improvements to stability and efficiency practices to help us and the business succeed

Job Description: We’re looking for an experienced Senior Support Specialist to play a key role in ensuring the stability, performance, and reliability of our Big Data Platform

The successful candidate will have deep technical expertise in big data technologies and a strong track record of resolving complex technical issues

Responsibilities: The Application Support Senior Analyst provides technical and business support for users of Citi applcations

This includes providing quick resolutions to app issues, driving stability, efficiency and effectiveness improvements to help us and the business succeed

Maintains application systems that have completed the development stage and are running in the daily operations of the firm

Manages, maintains and supports applications and their operating environments, focusing on stability, quality and functionality against service level expectations

Start of day checks, continuous monitoring, and regional handover

Perform same day risk reconciliations Develop and maintain technical support documentation

Identifies ways to maximize the potential of the applications used Assess risk and impact of production issues and escalate to business and technology management in a timely manner

Ensures that storage and archiving procedures are in place and functioning correctly Formulates and defines scope and objectives for complex application enhancements and problem resolution Reviews and develops application contingency planning to ensure availability to users

Partners with appropriate development and production support areas to prioritize bug fixes and support tooling requirements

Participate in application releases, from development, testing and deployment into production

Engages in post implementation analysis to ensure successful system design and functionality

Considers implications of the application of technology to the current environment

Identifies risks, vulnerabilities and security issues; communicates impact

Ensures essential procedures are followed and helps to define operating standards and processes

Act as a liaison between users/traders, interfacing internal technology groups and vendors

Expected to be able to raise problems to appropriate technology and business teams, while adhering to Service Level Agreements

Acts as advisor or coach to new or lower level analysts

Provides evaluative judgment based on analysis of factual information in complicated and unique situations

Directly impacts the business by ensuring the quality of work provided by self and others; impacts own team and closely related work teams

Exhibits sound and comprehensive communication and diplomacy skills to exchange complex information

Active involvement in and ownership of Support Project items, covering Stability, Efficiency, and Effectiveness initiatives

Performs other duties and functions as assigned

Has the ability to operate with a limited level of direct supervision

Can exercise independence of judgement and autonomy

Acts as SME to senior stakeholders and /or other team members

Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm’s reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency

Skills & Qualifications: Experience in an Application Support role

Hands-on experience in supporting applications built in Hadoop

Working knowledge of various components and technologies under Cloudera distribution like HDFS, Hive, Impala, Spark, YARN, Sentry, Oozie, Kafka

Experienced in Linux 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 staility and create/analyze performance metrics

Experience installing, configuring or supporting business applications

Experience with some programming languages and willingness/ability to learn

Good SQL experience in any of the RDBMS

Advanced execution capabilities and ability to adjust quickly to changes and re-prioritization Effective written and verbal communications including ability to explain technical issues in simple terms that non-IT staff can understand

Demonstrated analytical skills Issue tracking and reporting using tools Knowledge/ experience of problem Management Tools Effectively share information with other support team members and with other technology teams Consistently demonstrates clear and concise written and verbal communication skills Ability to communicate appropriately to relevant stakeholders UNIX shell scripting, Python / PERL will be of added advantage

Education: Bachelor’s/University degree or equivalent experience What we’ll provide you By joining Citi Belfast, 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 Visit ourGlobal Benefitspage to learn more

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 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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