KDB+ Developer - Vice President

Citigroup Inc.; Jersey City (NJ); On-site; USD 142,000 - 213,000; Full time

Benefits offered by this job

Medical, dental & vision coverage

401(k)

Life, accident, and disability保险

Wellness programs

Job summary

Citigroup Inc. in Jersey City, NJ, seeks an experienced KDB+ Developer at VP level to build and support our analytics backbone for the Equities Electronic Trading product. You will lead applications systems analysis and programming for analytics and data subsystems.

Responsibilities include leading core development on the KDB+ platform, delivering high-volume, low-latency analytics, coordinating with Citi Equities Electronic Trading Technology, and mentoring mid-level developers.

Qualifications

• 5+ years of professional experience with KDB+ and Q language.
• Practical experience scaling and load-balancing KDB+ applications.
• Proven expertise in building resilient, high-availability KDB+ apps.
• Extensive experience optimizing queries on large datasets (TBs/PB).
• Strong knowledge of market protocols (e.g., FIX).

Responsibilities

• Lead core development on the KDB+ platform for Citi's Equities Electronic Trading system.
• Build and maintain low-latency analytics processing for large market data sets.
• Architect and maintain data platforms and analytics services for trading applications.
• Collaborate with management across teams to deliver integrated solutions.
• Mentor mid-level developers and ensure compliant, well-documented code.

Skills

KDB+ expertise

Q language

Low-latency development

Query performance optimization

Communication skills

Markets electronic trading

Education

Bachelor’s degree or equivalent

Master’s degree preferred

Job description

We are looking for an experienced KDB+ Developer to build and support our strategic analytics backbone that services our Equities Electronic Trading product. This is a VP-level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Citi Equities Electronic Trading Technology team. The overall objective of this role is to lead applications systems analysis and programming activities on our Analytics and Data subsystems.

Responsibilities:

• Lead the core development and delivery on the KDB+ platform used by Citi's Equities Electronic trading system.
• Build and maintain business-critical, low-latency systems for processing high volumes of market data and generating required analytics from large datasets.
• Architect and maintain platforms that enable efficient data management, sophisticated analytics generation, and provide data services to other trading applications.
• Partner with multiple management teams to ensure appropriate integration of functions to meet goals as well as identify and define necessary system enhancements.
• Resolve a variety of high-impact problems through in-depth evaluation of complex business processes, system processes, and industry standards.
• Provide expertise in KDB+ and advanced knowledge of applications programming, ensuring application design adheres to the overall architecture blueprint.
• Utilize advanced knowledge of system flow and develop standards for coding, testing, debugging, and implementation.
• Develop a comprehensive knowledge of how areas of business, such as architecture and infrastructure, integrate to accomplish business goals.
• Serve as an advisor or coach to mid-level developers and analysts, allocating work as necessary.
• 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.

Qualifications:

• 5+ years of professional experience with a strong understanding of KDB+ technology and the Q language.
• Practical experience scaling and load-balancing KDB+ applications.
• Proven expertise in building resilient and high-availability KDB+ applications.
• Extensive experience managing and optimizing query performance on very large datasets (terabytes/petabytes).
• Strong knowledge of financial market protocols (e.g., FIX) and experience in handling order and market datasets.
• Consistently demonstrates clear and concise written and verbal communication.
• Preferred background in Markets Electronic Trading or Market Making domains.

Education:

• Bachelor’s degree/University degree or equivalent experience
• Master’s degree preferred

This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.

Job Family Group:

Technology

Job Family:

Applications Development

Time Type:

Full time

Primary Location:

Jersey City New Jersey United States

Primary Location Full Time Salary Range:

$142,320.00 - $213,480.00

In addition to salary, Citi’s offerings may also include, for eligible employees, discretionary and formulaic incentive and retention awards. Citi offers competitive employee benefits, including:

• medical, dental & vision coverage
• 401(k)
• life, accident, and disability insurance
• wellness programs

Citi also offers paid time off packages, including:

• planned time off (vacation)
• unplanned time off (sick leave)
• paid holidays

Available offerings may vary by jurisdiction, job level, and date of hire.

Most Relevant Skills

Please see the requirements listed above.

Other Relevant Skills

For complementary skills, please see above.

Anticipated Posting Close Date:

Sept 09, 2026

Automated Processing and AI

We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi.

Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details.

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