At a Glance
- Tasks: Design and optimise high-performance data platforms using kdb+ for multi-asset analytics.
- Company: Join BestX, a leader in innovative financial technology solutions.
- Benefits: Enjoy flexible work-life support, paid volunteer days, and inclusive development opportunities.
- Other info: Be part of a vibrant culture that values diversity and continuous improvement.
- Why this job: Make a real impact in finance with cutting-edge technology and collaborative teams.
- Qualifications: 5+ years of kdb+ experience, strong Python skills, and a STEM degree.
The predicted salary is between 80000 - 100000 € per year.
We are seeking an experienced Senior kdb+ Developer to join the BestX engineering team. In this role, you will design, build, and optimise high‑performance data platforms using kdb+, supporting BestX’s multi‑asset analytics capabilities. The ideal candidate brings deep expertise in kdb+ tick architectures, large‑scale performance tuning, and works closely with quantitative and engineering teams to deliver robust, efficient, and maintainable solutions.
Key Responsibilities
- Design and develop key components of BestX’s multi‑asset analytics platform.
- Architect, build, and maintain kdb+ tick systems, with strong consideration for data organisation, schema design, and architectural trade‑offs.
- Develop and operate systems that process large‑scale, high‑frequency datasets, ensuring low latency, high throughput, and efficient memory utilisation.
- Analyse and optimise q queries, data models, and ingestion pipelines for both real‑time and historical workloads.
- Apply modern Agile development practices across cloud‑based, server‑side, and database‑driven systems.
- Build a strong understanding of Transaction Cost Analysis (TCA) and key regulatory benchmarks required for MiFID and MiFIR.
- Take full ownership of deliverables, driving work through from design to production.
- Establish and promote best practices, clean code standards, and sound design patterns.
- Act as a change agent, continuously improving engineering standards and ways of working.
- Champion Test‑Driven Development and 'shift‑left' practices to support effective CI/CD pipelines.
Core (Must‑Have) Skills And Experience
- 5+ years of hands‑on kdb+ development experience.
- Strong expertise in kdb+/q and Python.
- Proficiency with modern data science toolchains, including Jupyter, pandas, NumPy, scikit‑learn, with applied machine‑learning experience.
- Solid understanding of parallel computing frameworks such as Slurm or equivalent technologies.
- Strong background in quantitative analysis, including mathematical modelling, statistics, regression, and probability theory.
- Bachelor’s or Master’s degree in Computer Science, Mathematics, Statistics, or a related STEM discipline from a top‑ranked university.
- Hands‑on experience with AWS and/or other modern cloud‑based infrastructure.
Nice‑to‑Have Skills
- Domain knowledge in FX, Fixed Income, Equities, or Equity Derivatives.
- Additional expertise with kdb+ in complex, production‑scale environments.
- Exposure to modern JavaScript build toolchains, including Node.js, npm, Rush, Yarn, Webpack, Babel, and Cypress.
Benefits
We are committed to fostering an environment where every employee feels valued and empowered to reach their full potential. As an essential partner in our shared success, you’ll benefit from inclusive development opportunities, flexible work‑life support, paid volunteer days, and vibrant employee networks that keep you connected to what matters most.
Senior kdb+ Developer, Vice President employer: State Street
At BestX, we pride ourselves on being an exceptional employer that champions innovation and collaboration within a dynamic work environment. Our commitment to employee growth is reflected in our inclusive development opportunities, flexible work-life balance, and vibrant networks that foster connection and support. Join us in London, where you will not only contribute to cutting-edge analytics solutions but also thrive in a culture that values your contributions and empowers you to reach your full potential.
StudySmarter Expert Advice🤫
We think this is how you could land Senior kdb+ Developer, Vice President
✨Tip Number 1
Network like a pro! Reach out to your connections in the industry, especially those who work at BestX or similar companies. A friendly chat can sometimes lead to insider info about job openings or even a referral.
✨Tip Number 2
Prepare for technical interviews by brushing up on your kdb+ skills and understanding the latest trends in data platforms. Practise coding challenges and be ready to discuss your past projects in detail.
✨Tip Number 3
Showcase your passion for the role! During interviews, share your thoughts on how you can contribute to BestX’s multi-asset analytics platform and demonstrate your knowledge of Transaction Cost Analysis (TCA).
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining our team.
We think you need these skills to ace Senior kdb+ Developer, Vice President
Some tips for your application 🫡
Tailor Your CV:Make sure your CV highlights your kdb+ experience and any relevant projects you've worked on. We want to see how your skills align with the role, so don’t be shy about showcasing your achievements!
Craft a Compelling Cover Letter:Your cover letter is your chance to tell us why you’re the perfect fit for the Senior kdb+ Developer position. Share your passion for data platforms and how your background in quantitative analysis can contribute to our team.
Showcase Your Technical Skills:Be specific about your technical expertise in kdb+/q and Python. If you’ve worked with modern data science toolchains or cloud infrastructure, let us know! We love seeing hands-on experience that matches our needs.
Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it’s super easy!
How to prepare for a job interview at State Street
✨Know Your kdb+ Inside Out
Make sure you brush up on your kdb+ and q skills before the interview. Be ready to discuss your past projects, especially those involving tick architectures and performance tuning. Prepare to explain how you've optimised systems for low latency and high throughput.
✨Showcase Your Problem-Solving Skills
Be prepared to tackle some technical questions or case studies during the interview. Think about how you would approach real-time data processing challenges or optimise ingestion pipelines. Demonstrating your analytical thinking will impress the interviewers.
✨Familiarise Yourself with Agile Practices
Since the role involves modern Agile development practices, make sure you can talk about your experience with CI/CD pipelines and Test-Driven Development. Share examples of how you've implemented these practices in previous roles to improve engineering standards.
✨Understand the Business Context
Get a good grasp of Transaction Cost Analysis (TCA) and the regulatory benchmarks like MiFID and MiFIR. Showing that you understand the business implications of your technical work will set you apart from other candidates.
