KDB Developer - FI Algo

Gravitas Group; Greater London; Hybrid; GBP 100,000 - 166,000; Full time

Job summary

Gravitas Group is seeking a Senior KDB+ Developer in London for a 12-month contract, with a hybrid work model and a day rate up to £900. You will join a front-office trading technology team to design and deliver high-performance KDB+ solutions supporting trading, pricing, risk and analytics.

The role is hands-on, requires strong Linux/Unix skills and experience building real-time, low-latency data platforms, and involves close collaboration with traders and tech stakeholders.

Qualifications

• Strong commercial experience with KDB+/q.
• Development of low-latency, real-time systems.
• Solid Linux/Unix expertise.
• Performance tuning and monitoring experience.
• Strong understanding of software development and testing practices.
• Excellent communication and stakeholder management skills.
• Degree in Computer Science, Mathematics, Engineering, Physics or a related discipline.

Responsibilities

• Design, develop and support KDB+ applications and real-time data platforms.
• Work directly with front-office users to understand and deliver business requirements.
• Develop APIs, data models and streaming solutions.
• Build monitoring, analytics and compliance tools.
• Optimize performance across low-latency systems.
• Provide technical leadership and mentor junior developers.

Skills

KDB+/q

Linux/Unix

Real-time systems

Low-latency

Communication

Stakeholder management

Education

BSc in Computer Science

Tools

GitLab

CI/CD

Job description

Senior KDB+ Developer (Contract)

Location: London (Hybrid)
Day Rate: Up to £900 per day
Contract: 12 months initally

We're seeking an experienced Senior KDB+ Developer to join a front-office electronic trading technology team in London.

Working closely with traders and technology stakeholders, you'll design and deliver high-performance, real-time KDB+ solutions supporting trading, pricing, risk and analytics platforms. This is a hands-on role within a fast-paced environment, offering direct business engagement and rapid delivery cycles.

Key Responsibilities

• Design, develop and support KDB+ applications and real-time data platforms.
• Work directly with front-office users to understand and deliver business requirements.
• Develop APIs, data models and streaming solutions.
• Build monitoring, analytics and compliance tools.
• Optimise performance across low-latency systems.
• Provide technical leadership and mentor junior developers.

Essential Experience

• Strong commercial experience with KDB+/q.
• Development of low-latency, real-time systems.
• Solid Linux/Unix expertise.
• Performance tuning and monitoring experience.
• Strong understanding of software development and testing practices.
• Excellent communication and stakeholder management skills.
• Degree in Computer Science, Mathematics, Engineering, Physics or a related discipline.

Desirable

• Front-office trading technology experience.
• Fixed Income or Capital Markets knowledge.
• Experience with TorQ, Panopticon, qspec or qunit.
• GitLab, CI/CD and deployment automation experience.
• Agile delivery methodologies.