> Markdown version of [/jobs/ext/4119658-open-senior-kdb-q-software-engineer](https://www.wearedevelopers.com/jobs/ext/4119658-open-senior-kdb-q-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# OPEN Senior KDB / q Software Engineer

- **Company:** Gattaca Plc
- **Location:** London, UK
- **Experience:** Expert
- **Salary:** £141,700.0
- **Contract:** Temporary contract
- **Skills:** Java (Programming Language), Data Governance, Python (Programming Language), Enterprise Messaging Systems, Performance Tuning, Data Streaming, Systems Integration, System Availability, Fastapi, KDB+, Information Technology, Real Time Data, Apache Kafka, Data Management
- **Published:** October 8, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5917681005

## About the Role

* 10+ years' commercial experience developing with KDB+/q.
 * Strong experience working within large-scale production environments.
 * Deep understanding of Prime Brokerage post-trade risk and margining.
 * Strong knowledge of time-series data modelling.
 * Experience with KDB ticker plant, RDB/HDB architectures and performance optimisation.
 * Proven production support and troubleshooting experience.
 * Experience within Financing, Securities Lending, Prime Brokerage or Risk domains.
 * Experience integrating KDB platforms with Java and/or Python applications.
 * Knowledge of event-driven and messaging architectures such as Kafka.
 * Excellent communication and stakeholder management skills.

Desirable Experience

 * Experience working directly with trading desks and quantitative teams.
 * Platform reliability engineering and monitoring expertise.
 * Exposure to enterprise-scale financial market data platforms.
 * Experience improving data quality frameworks and controls., * Degree in Computer Science, Engineering, Mathematics, Physics or a related technical discipline.

## Description

We're currently looking for an experienced Senior KDB+ / q Software Engineer to join a leading financial services organisation on an initial 13-week contract. This role will suit a hands-on engineer with deep expertise in KDB+/q development, real-time data platforms, and Prime Brokerage post-trade risk and margining environments.

Working within a high-performing engineering team, you'll be responsible for the development, optimisation, support and enhancement of business-critical applications and data platforms supporting front-office and risk functions.
Contract Details, You will play a key role in developing and supporting large-scale KDB+ platforms that process and distribute high-volume market and business data. The successful candidate will bring strong domain expertise within Prime Brokerage, Financing, Securities Lending, or Risk Management, allowing them to quickly contribute to complex post-trade workflows and risk calculations.
Key responsibilities include:

 * Designing, developing and optimising KDB+/q solutions within large-scale production environments.
 * Enhancing real-time market and business data ingestion, processing and distribution capabilities.
 * Managing and optimising KDB ticker plant, RDB/HDB architectures and historical data platforms.
 * Supporting data feed onboarding, integration and data quality controls.
 * Troubleshooting complex production issues and providing Level 3 support for critical applications.
 * Working closely with business users, traders, quantitative analysts and technology stakeholders.
 * Supporting platform reliability, monitoring, root cause analysis and continuous improvement initiatives.
 * Integrating KDB platforms with wider technology ecosystems including Java, Python and messaging technologies.