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Citigroup · Mississauga Ontario Canada

# KDB+/q Engineer - Time Series Data

Mississauga Ontario Canada $94,300.00 - $141,500.00 Data & Analytics 

Listed on Citigroup’s official careers site. Posted October 10, 2026. Check that it is still open and apply there.
[Apply on Citigroup’s careers site →](https://citi.wd5.myworkdayjobs.com/2/job/Mississauga-Ontario-Canada/KDB--q-Engineer---Time-Series-Data_26975301)

[OpenNash Jobs](https://jobs.opennash.com/) / [Citigroup](https://jobs.opennash.com/companies/citigroup/) / KDB+/q Engineer - Time Series Data

## Job description

The Applications Development Senior Programmer Analyst is an intermediate level position responsible for participation in the establishment and implementation of new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to contribute to applications systems analysis and programming activities.

### Responsibilities

Drive the design and development of real-time market data and analytics systems, leading KDB+/q development for trading and analytics platforms. Own technical delivery, and collaborate with Traders, Quants, and Global Technology teams to build high-performance, low-latency solutions.
- Utilize advanced knowledge of system flow and develop standards for coding, testing, debugging, and implementation
- Develop comprehensive knowledge of how areas of business, such as architecture and infrastructure, integrate to accomplish business goals Appropriately assess risk when business decisions are made, demonstrating 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
- Conduct tasks related to feasibility studies, time and cost estimates, applications development, model development, and establish and implement new or revised applications systems and programs to meet specific business needs or user areas
- Monitor and control all phases of development process and analysis, design, construction, testing, and implementation as well as provide user and operational support on applications to business users
- Consult with users/clients and other technology groups on issues, recommend advanced programming solutions, and install and assist customer exposure systems Has the ability to operate with a limited level of direct supervision.

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.

### Recommended Qualifications

5-8 years of relevant experience Minimum 2 years of working experience in KDB+/q KDB+ proficiency: Deep understanding and experience with KDB+ databases and the Q programming language.

### Programming Languages

Strong skills in Q/KDB+, Java. Bash Scripting Good understanding of Linux/UNIX Strong debugging and trouble shooting skills, especially under production load Experience in systems analysis and programming of software applications Experience in managing and implementing successful projects Ability to work under pressure and manage deadlines or unexpected changes in expectations or requirements Education: Bachelor’s degree/University degree or equivalent experience 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 Full Time Salary Range: $94,300.00 - $141,500.00 ------------------------------------------------------ Most Relevant Skills Please see the requirements listed above. ------------------------------------------------------ Other Relevant Skills For complementary skills, please see above and/or contact the recruiter. ------------------------------------------------------ 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. ------------------------------------------------------ This job opening is for an existing job vacancy. ------------------------------------------------------ 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.

## At a glance
- Posted by the employer: Oct 10, 2026
- First seen by OpenNash: Jul 10, 2026
- Last checked: Oct 20, 2026
- Listed for: 102 days
- Location: Mississauga Ontario Canada
- Pay: $94,300.00 - $141,500.00[Apply on Citigroup’s careers site →](https://citi.wd5.myworkdayjobs.com/2/job/Mississauga-Ontario-Canada/KDB--q-Engineer---Time-Series-Data_26975301)

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