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# KDB Developer

- **Company:** KX
- **Location:** London, UK
- **Experience:** Experienced
- **Salary:** £68,516.0
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Amazon Web Services, Automation of Tests, Microsoft Azure, Big Data, Cloud Computing, Continuous Integration, Data Structures, Data Systems, Software Debugging, Python (Programming Language), Query Optimization, Software Engineering, Systems Integration, Enterprise Software Applications, Software Application Programming, Git, Containerization, Programming Languages
- **Published:** November 3, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5951522420

## About the Role

Candidates not already based in Lincolnshire must be willing to relocate to the region., * Minimum 3 years of hands-on commercial experience developing applications using kdb+ and q.

 * Strong understanding of the q programming language, kdb+ data structures and query optimisation.
 * Practical experience working with time-series data and real-time or large-scale data processing.
 * Experience developing, debugging and optimising kdb+ applications.
 * Proficiency working in Unix/Linux environments.
 * Familiarity with Git, software development lifecycles and standard development practices.
 * Strong analytical and problem-solving skills, with the ability to investigate and resolve complex technical issues.
 * Ability to work independently while collaborating effectively with other engineers and technical teams.
 * Clear communication skills and confidence engaging directly with customers and technical stakeholders.

Desirable Skills and Experience

 * Proficiency in Python or other programming languages.
 * Experience integrating kdb+ with external applications, APIs and data sources.
 * Familiarity with cloud technologies such as AWS, Azure or GCP.
 * Experience with containerisation, CI/CD pipelines and automated testing.
 * Experience delivering software in Defence, Government, aerospace or other regulated environments.
 * Understanding of secure software development practices and working within security-controlled environments.

Security Requirements: Due to the nature of the work and security requirements, this role is open to UK nationals only. Applicants must be able to evidence UK nationality and satisfy the relevant vetting requirements.
Existing security clearance is advantageous but is not a prerequisite.

## Description

KX is seeking an experienced kdb+ Developer to join our Professional Services team, supporting the development and delivery of high-performance data solutions for our customers.
This is a hands-on engineering role suited to someone with at least three years of practical kdb+/q development experience who enjoys solving complex technical problems, working with large datasets and building reliable, high-performance applications.
You will work alongside KX engineers, technical specialists and customer teams to design, develop, optimise and maintain data-driven solutions. The role offers an opportunity to apply your kdb+ skills beyond traditional financial services applications, working on technically challenging projects where performance, reliability and security are important.