Senior kdb+ Developer
SKILLS
FULL DESCRIPTION
Senior kdb+ Developer
At [Employer hidden — view at passion-project.co.uk], we thrive on solving complex data challenges in high-stakes environments. We’re a team of engineers, problem-solvers, and collaborators who believe in pushing boundaries, not egos.
If you're a seasoned kdb+ developer ready to lead, innovate, and make an impact, we want to hear from you.
Job Details.
Reference: REF177I
Department: Time Series Data
Location: London Office
Contract Type: Full-time
Experience: Mid-Senior Level
Industry: Information Technology And Services
Closing Date: 01/06/2026
Requirements.
What You Bring
- 5+ years of hands-on kdb+ development, with deep expertise in q and time-series data.
- Proven experience designing and implementing kdb+ architectures and scaling kdb+ systems in production.
- Strong background in Unix/Linux environments and scripting.
- Demonstrated technical leadership and decision-making in fast-paced projects.
- Excellent communication skills with ability to explain complex systems to both technical and non-technical stakeholders.
- Experience in capital markets or investment banking to understand the domain and its demands.
- A passion for clean, performant code and continuous improvement.
Bonus Points For:
- Experience with Python, cloud platforms (AWS, GCP, Azure), or other time-series databases.
- Exposure to tick data, real-time analytics, or electronic trading systems.
- People management or team leadership experience.
Responsibilities.
As a Senior kdb+ Developer at [DI] you’ll be at the forefront of delivering high-performance, scalable solutions for some of the world’s most data-intensive financial institutions. You’ll:
- Lead technical delivery on client projects, setting the standard for quality and performance.
- Design and implement robust kdb+ architectures that handle billions of rows of time-series data.
- Collaborate with quants, traders, and analysts to translate business needs into performant, efficient code.
- Mentor and guide junior and mid-level developers, fostering a culture of technical excellence and knowledge sharing.
- Own the full development lifecycle by developing, testing, supporting and maintaining all code for client applications
- Drive innovation by staying ahead of the curve in kdb+/q and adjacent technologies.
You'll know if you're up to the challenge
our Benefits.
Hybrid working.
The commute can be a pain, but there's really no virtual replacement for sitting around a whiteboard with teammates. We offer hybrid working, with flexbility around in-office or from-home, allowing our people to achieve a good work/life balance.
REFERRAL SCHEME.
We love to see referrals coming through for people that could add to the ever growing [Employer hidden] team. Referring a friend means cash for you!
Travel opportunities .
We offer opportunities to work globally in locations such as London, New York, Hong Kong, Singapore and Japan- with all expenses paid!
Healthcare cover.
We provide private health care via Benenden Health, including 24/7 GP, Mental Health helpline, medical diagnosis and treatment, and physiotherapy.
Holiday entitlement
We get up to 27 days leave, public holidays, compensatory days off, and holiday carry over (different holiday entitlements apply depending on region)
Continual professional development.
We have extensive training ranging from leadership to technical skills. Monthly 1-2-1s with your People Leader will support and guide you in the right direction. We run an internal promotion process twice a year.
Find out more
our Benefits.
- Holiday entitlement
We get up to 27 days leave, public holidays, compensatory days off, and holiday carry over (different holiday entitlements apply depending on region)
- Continual professional development.
We have extensive training ranging from leadership to technical skills. Monthly 1-2-1s with your People Leader will support and guide you in the right direction. We run an internal promotion process twice a year.
- Hybrid working.
The commute can be a pain, but there's really no virtual replacement for sitting around a whiteboard with teammates. We offer hybrid working, with flexbility around in-office or from-home, allowing our people to achieve a good work/life balance.
- REFERRAL SCHEME.
We love to see referrals coming through for people that could add to the ever growing [Employer hidden] team. Referring a friend means cash for you!
- Travel opportunities .
We offer opportunities to work globally in locations such as London, New York, Hong Kong, Singapore and Japan- with all expenses paid!
- Healthcare cover.
We provide private health care via Benenden Health, including 24/7 GP, Mental Health helpline, medical diagnosis and treatment, and physiotherapy.
- Holiday entitlement
We get up to 27 days leave, public holidays, compensatory days off, and holiday carry over (different holiday entitlements apply depending on region)
- Continual professional development.
We have extensive training ranging from leadership to technical skills. Monthly 1-2-1s with your People Leader will support and guide you in the right direction. We run an internal promotion process twice a year.
- Hybrid working.
The commute can be a pain, but there's really no virtual replacement for sitting around a whiteboard with teammates. We offer hybrid working, with flexbility around in-office or from-home, allowing our people to achieve a good work/life balance.
- REFERRAL SCHEME.
We love to see referrals coming through for people that could add to the ever growing [Employer hidden] team. Referring a friend means cash for you!
GET IN TOUCH