We are seeking an experienced Senior KDB+ Developer to design, develop, and optimize high performance data platforms built on kdb+. The ideal candidate will have deep expertise in kdb+ tick architecture, performance tuning at scale, and close collaboration with business stakeholders—particularly within Risk functions—to deliver robust, efficient, and maintainable solutions.
This role also includes technical responsibilities, mentoring junior developers and promoting best practices across the team.
*Design, develop, and maintain kdb+ tick systems, with a strong understanding of data organisation, schema design, and the performance implications of different architectural approaches. *Build and operate solutions handling large scale, high frequency datasets, ensuring low latency, high throughput, and efficient memory usage. *Analyse and optimise q queries, data models, and ingestion pipelines for both real time and historical workloads. *Collaborate closely with Risk function teams to translate business requirements into efficient, scalable, and performant kdb+ solutions. *Take ownership of performance diagnostics, including CPU, memory, disk I/O, and network considerations across kdb+ processes. *Develop robust and reusable q libraries, utilities, and frameworks with a strong focus on clean, maintainable, and performant code. *Drive continuous improvement through refactoring, performance benchmarking, and adoption of best practices. *Mentor and guide junior and mid-level developers, fostering a culture of technical excellence, code quality, and knowledge sharing. *Participate in design reviews, production support, and root cause analysis of complex system issues. *Work collaboratively within an Agile or iterative delivery environment, contributing to design, implementation, testing, and release phases
MUST
*8+ years of hands on experience in kdb+ development in a production environment. *Strong expertise in q language, including:
oTable design (splayed, partitioned, segmented)
oIn memory vs on disk trade offs
oEfficient joins, aggregations, and windowed analytics
*Deep understanding of kdb+ tick architecture, including ticker plant, RDB, HDB, and associated patterns. *Proven experience working with large datasets and optimising queries for performance and scalability. *Strong background in Unix/Linux environments, including shell scripting for automation, monitoring, and operational tooling. *Solid understanding of software delivery processes and methodologies (Agile, CI/CD, version control, release management). *Ability to communicate clearly with both technical and non-technical stakeholders, demonstrating systematic reasoning and problem solving skills.
NICE TO HAVE*Knowledge of inter process communication mechanisms in kdb+ and integration with external systems. *Experience tuning kdb+ systems for low latency and high availability. *Familiarity with data quality checks, validation frameworks, and operational resilience patterns. *Exposure to financial markets data (e.g. market data, trading, risk, or post trade workflows, equity asset class).
Luxoft DXC
2000
Luxoft, a DXC Technology Company is a global digital strategy and software engineering firm with over 17,000 international employees within its 58 offices in 29 countries. It is headquartered in Zug, Switzerland.
In January 2019, Luxoft was acquired by U.S. company DXC Technology. Luxoft partnered with LG Electronics to create a next-generation Autonomous Mobility concept vehicle that integrates consumers' personalized digital lifestyles into a driving experience. Luxoft enabled Switzerland's first Blockchain based e-vote platform with the City of Zug and Hochschule Luzern's Blockchain Lab.
Luxoft, a DXC Technology Company is a world-renowned company. It has been present on the Polish market for over 13 years. We have offices in Krakow, Warsaw, Wroclaw, and Gdansk. We employ over 2,000 professional experts carrying out projects for over 100 clients from the financial, automotive, medical, tourist industries, etc. We work for many international clients, including the USA, Great Britain, and Switzerland.
So far, Luxoft Poland has made a name for itself as a company that offers work on innovative projects, we offer various experiences in the field of IT, opportunities for rapid development, an extensive training program, and attractive benefits for employees.
At present, 62% of Luxoft Poland employees come from Poland, and 38% from around 50 countries, including Ukraine, Brazil, India, Turkey, Spain, Portugal, Italy, Romania, USA, etc.
At Luxoft, a DXC Technology Company almost 80 percent of employees are experts with the "Senior" experience level, with at least five years of experience. We care about our employees, so every day we try to provide them with the best possible conditions for work and development.
Technology is our passion! We focus on top engineering talent means that you will be working with the best industry professionals from around the world. Because of that, Luxoft is a global family with an epic atmosphere – we love what we do!