KDB Developer

GFT is hiring a Senior KDB Developer to join our clients Global Markets Data & Analytics organization. Youll design build and deploy time series systems powering pre trade at trade and post trade analytics across Equities FX and Rates. The role combines hands on q/KDB engineering with performance optimization and collaboration across Trading Quant and Platform teams.
You will lead end to end development of low latency market data capture and analytics services in KDB/q integrate with upstream market/exchange feeds and downstream trading analytics and improve resiliency latency and throughput of GW/RDB/HDB tiers. Youll be part of a global delivery team (GFT client) operating in a fast paced production critical environment.

Hybrid work mode from one of our locations 2 days per week on-site (Łódź Warsaw Kraków Poznań or Wrocław).
However were also open to candidates based outside these locations who prefer to work remotely.

Responsibilities

• Drive the design and development of real time market data and analytics services on KDB/q (GW/RDB/HDB/tickerplant pub/sub CEP)
• Own technical delivery: requirements solution design coding testing deployment and production support in low latency environments
• Collaborate with Traders Quants and Technology to deliver high performance analytics (asof joins windowed analytics intraday aggregations)
• Optimize for latency and throughput (IPC memory layout partitioning attributes OS tuning NUMA hugepages)
• Implement and harden ETL pipelines for tick capture and reference data enrichment; integrate with Kafka and streaming services where applicable
• Contribute to coding standards code reviews and test automation for q/KDB (including PyKX integration points)
• Ensure observability (metrics tracing logging) production readiness and on call excellence.
• Risk & Compliance: Appropriately assess risk in decisions protect client reputation and assets comply with applicable laws regulations and policies apply sound ethical judgment and escalate issues transparently

Requirements

• Expertise in KDB/q with production systems: GW/RDB/HDB design sym/partition strategies attributes asof/aj/uj IPC patterns
• Strong skills in q/KDB; working proficiency in Python/PyKX and ideally Java for integration services
• Solid Linux/UNIX fundamentals (networking OS tuning) and familiarity with TCP/IP UDP Multicast; knowledge of FIX/OUCH/ITCH preferred
• Proven track record of profiling and optimizing for microsecond level latency (e.g. vectorization batching zero copy mmap)
• Strong debugging and production incident response; experience with agile delivery
• Market knowledge is a plus: market microstructure SORs algo trading systems
  
  

Nice to have

• Containers/Kubernetes CI/CD cloud (AWS/Azure/GCP) secrets/entitlements Terraform/Ansible

We offer

• Contract of employment or B2B contract
• Hybrid work in one of our locations: Lodz Poznan Krakow Warszawa Wroclaw (2 office days per week)
• Working in a highly experienced and dedicated team
• Benefit package that can be tailored to your personal needs (private medical coverage sport & recreation package lunch subsidy life insurance etc.)
• On-line training and certifications fit for career path
• Access to e-learning platform
• Mindgram - a holistic mental health and wellbeing platform
• Work From Anywhere (WFA) - the temporary option to work remotely outside of Poland for up to 140 days per year (including Italy Spain the UK Germany Portugal and Bulgaria)
• Social events