Overview
In this role you will architect and implement high-performance KDB+/q time-series systems to support electronic trading and market data. You will lead technical direction, mentor engineers, and collaborate with traders, analysts, and infrastructure teams. You’ll optimise real-time and historical data architectures and drive cloud adoption and compliance-aligned solutions. This position offers scope to shape core data platforms and impact fast-moving financial workflows.
Pay / Benefits
- 27 days annual leave (plus bank holidays)
- discretional annual bonus
- Private Medical Care & Life Insurance
- Employee Assistance Program
- Pension Plan
- Paid Parental Leave
Responsibilities
- Lead end-to-end design and maintenance of scalable KDB+ architectures (TP, RDB, HDB, RTS, IDB, GW)
- Define best practices for q code, schema design, memory management, data partitioning, and query optimization
- Act as primary technical authority for KDB+ platform engineering aligning with enterprise blueprints and compliance
- Design and build high-throughput feedhandlers, APIs, and microservices interfacing KDB+ with messaging systems
- Develop high-performance C/C++ or Python libraries for analytics and ML integration
- Oversee KDB+ deployment in on-premises and cloud environments (AWS, GCP, KX Insights)
- Lead, mentor and coach KDB developers; conduct code reviews and manage releases
- Drive risk-aware decision making and regulatory compliance across IT and business stakeholders
Key requirements
- Hands-on experience with KDB+/q in high-volume, low-latency finance environments
- Mastery of KDB+/q with vectorized code and CEP
- Experience designing Tick architectures (TP, RDB, HDB, CEP, Gateway)
- Strong knowledge of IPC, multi-threading, memory allocators, partitioning
- Proficiency in Python (Pandas, NumPy) and embedding tools like embedPy or PyKX
- Experience with Java-KDB+ integration; familiarity with messaging middleware (Kafka, Solace, LBM/Tibco)
- Linux/Unix expertise, shell scripting, performance tuning
- CI/CD familiarity; containerization with Docker/Kubernetes/OpenShift a plus
- Strong leadership, communication, and stakeholder-management skills
- leadership
- problem-solving under time pressure
- clear written and verbal communication
- KDB+/q mastery
- real-time and historical data architectures (TP, RDB, HDB, CEP)
- low-latency optimization
KDB Application Technology Lead Analyst (VP) in Belfast employer: Citigroup
Citi is an exceptional employer, offering a dynamic work environment in the heart of London where innovation meets collaboration. As a Sales Director, you will benefit from extensive training and mentorship opportunities, fostering your professional growth while working alongside industry leaders in FX Sales. With a strong commitment to integrity and inclusivity, Citi provides a supportive culture that empowers employees to excel and drive meaningful results for clients.
