Senior kdb+ Developer

Data Intellect; Belfast City District; Hybrid; GBP 90,000 - 140,000; Full time

Benefits offered by this job

Hybrid work

Global opportunities

Learning & development

Career progression

Healthcare

Job summary

Data Intellect in Belfast seeks a Senior kdb+ Developer to deliver high-performance, scalable data solutions for leading financial institutions. You will lead delivery, design robust kdb+ architectures, and collaborate with quants, traders, and analysts to translate business needs into efficient code.

You’ll mentor juniors, own the full lifecycle, and stay ahead with kdb+, q, and related technologies, while contributing to a culture of technical excellence and continuous improvement.

Qualifications

• 5+ years of hands-on kdb+ development and time-series data work.
• Experience designing kdb+ architectures and production-scale systems.
• Strong Unix/Linux and scripting background.
• Excellent technical leadership and decision-making in fast-paced projects.
• Clear communication to technical and non-technical stakeholders.
• Domain experience in capital markets or investment banking.
• Passion for clean, performant code and continuous improvement.

Responsibilities

• Lead technical delivery on client projects, setting quality standards.
• Design and implement robust kdb+ architectures for large data volumes.
• Collaborate with quants, traders, and analysts to translate needs into code.
• Mentor junior and mid-level developers and promote knowledge sharing.
• Own the full development lifecycle from development to support.
• Drive innovation by staying ahead in kdb+, q, and adjacent tech.

Skills

kdb+ expertise

Time-series data

Unix/Linux

Technical leadership

Communication skills

Capital markets experience

Python

AWS

KDB+ tooling

Job description

Every query matters. Every millisecond counts. Every system you build shapes the future of data-driven finance.

Join the world’s leading kdb+ consultancy and work at the forefront of data and trading technology with some of the biggest names in Capital Markets. You'll tackle large-scale, complex challenges, contribute to the architecture of business-critical platforms and collaborate with highly skilled engineers who are passionate about technical excellence.

If you're a Senior kdb+ Engineer seeking greater technical ownership, exposure to demanding enterprise environments and the opportunity to shape innovative solutions, we'd love to hear from you.

Job Description

As a Senior kdb+ Developer at [DI] you’ll be at the frontier of delivering high-performance, scalable solutions for some of the world’s most data-intensive financial institutions. You’ll:

• Lead technical deliveryon client projects, setting the standard for quality and performance.
• Design and implement robust kdb+ architecturesthat handle billions of rows of time-series data.
• Collaborate with quants, traders, and analyststo translate business needs into performant, efficient code.
• Mentor and guidejunior 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 innovationby staying ahead of the curve in kdb+, q, and adjacent technologies.

Qualifications

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 scalingkdb+ systems in production.
• Strong background inUnix/Linux environmentsand scripting.
• Demonstratedtechnical leadershipand decision-making in fast-paced projects.
• Excellent communication skills to explain complex systems to both technical and non-technical stakeholders.
• Experience incapital markets or investment banking tounderstand the domain and its demands.
• A passion for clean, performant code and continuous improvement.

Bonus Points For

• Experience withPython,cloud platforms(AWS, GCP, Azure), or other time-series databases.
• Exposure totick data,real-time analytics, orelectronic trading systems.
• Exposure to AI tooling (Claude, Co-pilot etc)
• People management or team leadership experience.

Additional Information

Why Join Data Intellect?

• Hybrid & flexible working– balance your time between home and our global offices.
• Global opportunities– work with clients in London, New York, Hong Kong, Singapore, and beyond.
• Continuous learning– access to paid training, certifications, and leadership development.
• Clear progression paths– biannual promotion cycles and regular 1:1s to support your growth.
• Healthcare & wellbeing– provider dependent on region.
• Referral bonuses, social events, and more– we work hard and celebrate harder.

About Us

Data Intellectis a specialist data and technology consultancy with deep roots in capital markets. We build high-performance systems that power trading, risk, and analytics for some of the world’s most demanding clients. Our expertise spanskdb+,data engineering,regulatory tech, andenterprise platforms and we’re growing fast.

Fair Employment & Equal Opportunities

We’re proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. Accommodations are available throughout the assessment and selection process.