Big Data Support Engineer- Assistant Vice President

Citi; New York (NY); Hybrid; USD 100,000 - 130,000; Full time

Job summary

Citi is seeking a Big Data Support Engineer – Assistant Vice President in New York. In this role, you will provide comprehensive technical and business support for applications, focusing on stability, efficiency, and effectiveness.

The ideal candidate will have 5-8 years of application support experience, particularly in a financial environment. Strong analytical and communication skills are essential, alongside familiarity with programming and technical tools. This hybrid position offers opportunities to influence significant projects and processes.

Qualifications

• 5-8 years experience in an Application Support role.
• Experience installing, configuring or supporting business applications.
• Demonstrated analytical skills.

Responsibilities

• Provide technical and business support for users of Citi Applications.
• Manage, maintain and support applications focusing on stability and functionality.
• Conduct daily application checks and monitoring.

Skills

Application Support

Technical Support

Programming Languages

Communication Skills

Analytical Skills

Problem Management Tools

Education

Bachelor’s/University degree or equivalent experience

Tools

Hadoop

SQL

Oracle

Sybase

UNIX/Linux

Windows

Job description

Job Title

Big Data Support Engineer – Assistant Vice President

Job Information

Job Req Id: 26957930

Location: Irving, Texas, United States

Job Type: Hybrid

Posted: May 07, 2026

Job Overview

The Apps Support Sr Analyst is a seasoned professional role. Applies in-depth disciplinary knowledge, contributing to the development of new techniques and the improvement of processes and workflow for the area or function. Integrates subject matter and industry expertise within a defined area. Requires in-depth understanding of how areas collectively integrate within the sub‑function as well as coordinate and contribute to the objectives of the function and overall business. Evaluates moderately complex and variable issues with substantial potential impact, where development of an approach or taking of an action involves weighing various alternatives and balancing potentially conflicting situations using multiple sources of information. Requires good analytical skills to filter, prioritize and validate potentially complex and dynamic material from multiple sources. Strong communication and diplomacy skills are required. Regularly assumes informal/formal leadership role within teams. Involved in coaching and training of new recruits. Significant impact in terms of project size, geography, etc. by influencing decisions through advice, counsel and/or facilitating services to others in area of specialization. Work and performance of all teams in the area are directly affected by the performance of the individual.

Responsibilities

• The Application Support Senior Analyst provides technical and business support for users of Citi Applications. 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.
• Participates 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.
• Acts 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 judgment 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 Citi, 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.

Qualifications

• 5‑8 years experience in an Application Support role.
• Experience installing, configuring or supporting business applications.
• Experience with some programming languages and willingness/ability to learn.
• 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.
• Good all‑round technical skills.
• Effectively share information with other support team members and other technology teams.
• Ability to plan and organize workload.
• Consistently demonstrates clear and concise written and verbal communication skills.
• Ability to communicate appropriately to relevant stakeholders.

Education

• Bachelor’s/University degree or equivalent experience.

Preferred Experience

• UNIX/Linux / Windows – Advanced scripting, automation, debugging. OS / Administration Certifications preferred.
• SQL/Oracle/Sybase – Advanced query writing and debugging.
• Data analytics and reporting abilities.
• Programming languages – SHELL scripting, Perl scripting, C or C++ familiarization, C#, .Net, Java, HTML5 familiarization.
• Minimum 4‑5 years’ hands‑on experience in above skills.
• Strong social, positive, can‑do attitude to learn and deliver innovative solutions.
• Good interpersonal skills and ability to work under stress and time constraints.
• Maintains good relationships with colleagues and builds strong professional networks.

Hadoop/Big Data Platform Skill Set

• 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 on Hadoop.

Additional Experience

• Experience in Technical Production Support roles preferably within a large‑scale, global financial services organization.
• Experience as a member of a Production Support group in a high availability / critical environment.
• Experience in providing communications across business and technology partners at varying levels, across a medium to large‑scale enterprise.
• Lead and participate in the incident response lifecycle, including detection, triage, mitigation, resolution and post‑incident analysis. Drive efforts to reduce Mean Time To Recovery (MTTR).
• Implement and enhance comprehensive monitoring, logging, and alerting solutions to provide deep insights into system health and performance. Define and track Service Level Indicators (SLIs) and Service Level Objectives (SLOs).
• Evaluate moderately complex and variable issues with substantial potential impact, where development of an approach or taking of an action involves weighing alternatives and balancing conflicting situations using multiple sources of information.
• Ensure compliance with SRE best practices.
• Timely and effectively escalates complex or unresolved issues to Level 2 SREs, development teams, or other specialized support groups, providing comprehensive handover information.
• Apply in‑depth disciplinary knowledge, contributing to the development of new techniques and the improvement of processes and workflow for the area or function.
• Implement and enforce robust change management processes to minimize risks associated with system modifications and deployments.
• Production support experience in specific wealth management application domains is highly desired.
• Work with various interfacing teams across multiple locations and time‑zones.
• Work closely with development teams, product managers and other stakeholders to ensure operational requirements are met throughout the application lifecycle. Communicate technical information clearly to diverse audiences.
• Support multiple applications, establishing ITIL standard methodologies, processes and procedures.
• Execute effective support and process models.
• Analyze and correct data.
• Ensure systems adhere to security best practices, compliance regulations and internal policies.
• Participate in on‑call rotations including weekend coverages to provide 24/7 support for critical systems, system changes and respond to production incidents.
• Incident and problem management: incident tracking & reporting, problem tracking & reporting until resolution to ensure reduction of production incidents.
• Setup and use diagnostic and analytical tools such as HP Diagnostics, ITRS etc. and automated deployment tools like uDeploy.
• Change and release management: ensure timely review and sign off on all application related changes, ensure proper deployment within the timeline and post‑implementation application availability.
• Lead the COB test of in‑house and vendor applications involving multiple data centers, partners, locations and time zones.
• Co‑ordinate with vendor support teams on vendor application issues and version upgrades.
• Drive solutions with effective communication, provide directions to the team during day‑to‑day production support matters and foresee application risks.
• Supervise production team members and evaluate performance, effectiveness, quality of deliverables, turnaround time and prioritization of work.

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