KDB+ & Apache Flink Developer

GFT TECHNOLOGIES SE; Toronto; Hybrid; CAD 90,000 - 130,000; Full time

Job summary

A leading company in technology is seeking a hands-on developer specializing in KDB+/q and Apache Flink to enhance their analytics platforms. This hybrid role involves designing data pipelines, collaborating with traders, and optimizing applications for real-time data processing. Ideal candidates will have a strong background in financial technology and a commitment to innovation.

Qualifications

• 4+ years in KDB+/q development for analytics platforms.
• 2+ years in Apache Flink (open-source).
• Strong understanding of event time processing and stateful stream processing.

Responsibilities

• Design and maintain streaming data pipelines using Apache Flink.
• Develop and optimize KDB+/q applications for market data.
• Collaborate with teams for real-time decision support.

Skills

KDB+/q

Apache Flink

Kafka

Agile methodologies

Problem-solving

Education

Bachelor's degree in Computer Science

Tools

Ansible

Terraform

Job description

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Date: May 13, 2025

Location:

Toronto, CA, M5J 2M4

Working place: Hybrid

** Contract Opportunity Available - No Visa Sponsorship options for this role . Hybrid Work 2-3 days work from client office in Downtown Toronto OR Mississauga**

Our client is seeking a hands-on developer with experience in KDB+/q and Apache Flink to support real-time and historical data processing needs within its Markets Technology group. This role focuses on building high-performance analytics platforms to support trading, surveillance, market data, and regulatory reporting, using in-house and open-source Flink deployments (not Confluent).

Key Responsibilities

• Design, implement, and maintain streaming data pipelines using Apache Flink (open-source, non-Confluent) to process high-volume trade and market data.
• Develop and optimize KDB+/q applications for storing and analysing tick data, order books, and market microstructure analytics.
• Collaborate with traders, quants, and risk teams to deliver solutions for real-time decision support and post-trade analysis.
• Integrate Flink-based services with Kafka, internal APIs, and downstream data consumers.
• Support internal infrastructure teams on deployment, monitoring, and tuning of Apache Flink clusters.

Required Qualifications & Experience

• 4+ years of experience in KDB+/q development for real-time and historical analytics platforms.
• 2+ years of experience in Apache Flink (open-source, self-managed or Citi-hosted environments).
• Strong understanding of event time processing, stateful stream processing, and checkpointing in Flink.
• Experience with Kafka for stream ingestion and distribution.
• Familiarity with low-latency system design, performance tuning, and distributed computing.
• Strong communication skills and ability to work with global teams across Markets and Risk.
• Solid understanding of Agile methodologies and CI/CD processes.
• Strong problem-solving skillswith the ability to prioritize multiple tasks, set goals, and meet deadlines.
• Excellent communication skills, capable of articulating complex technical concepts in a multicultural team environment.
• Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent experience).
• Prior experience in Equities, FX, or Fixed Income trading technology.
• Exposure to on-prem or cloud-based deployments of Apache Flink (non-Confluent).
• Familiarity with CI/CD tools and infrastructure-as-code frameworks (e.g., Ansible, Terraform).

At GFT we are committed to cultivating, fostering, and preserving a culture of diversity, equity, and inclusion. We want to attract, recruit, develop and retain the most talented employees, regardless of their background. We are guided by our core values in everything we do, and recognize that being a diverse and inclusive employer helps us fulfil our social responsibility to make a difference.

At GFT, #MakeYourMark implies a commitment to always put you first, while helping you push your boundaries to achieve greatness, and giving you the freedom to innovate and create beyond conventions.

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