Low Latency C++ Developer (Financial Services)

INTRODUCTION.

At Data Intellect it has never been just about data or technology, they are our tools. It’s about human intellect, collaboration and providing solutions for the most complex of challenges.

We do this by living the [DI] code:

We are Problem Solvers who are Humble, possess a Can-do Attitude with a focus on Togetherness.

“We are not big on egos, but we’re not for the faint-hearted either” – Steve Turner, CEO

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Job Details.

> Reference:

REF117I

> Department:

Software Engineering

> Location:

London Office

> Contract Type:

Full-time

> Experience:

Mid-Senior Level

> Industry:

Information Technology And Services

> Closing Date:

01/05/2025

Requirements.

Requirements

We’re hiring C++ Low Latency Engineers who thrive on solving real-time performance challenges 🚀

If you know what it takes to build a high-performance feed handler — and you obsess over every microsecond from network packet arrival to order book update — we want to hear from you!

We’re looking for people with experience of the following:

✅Expertise in UDP Multicast & TCP feed handling

✅Direct experience with kernel bypass technologies

✅Deep understanding of accelerated message parsing

✅Ability to design lock-free, zero-copy data pipelines

✅Strong grasp of CPU affinity, NUMA optimisation & real-time tuning

✅Experience with low-latency shared memory

✅Hands-on with PTP time synchronisation and nanosecond time stamping

✅Comfortable in environments where failure recovery & gap detection are mission-critical

✅Pragmatic about asynchronous logging and performance profiling under real-world loads

This is not your average C++ role — you’ll work at the heart of real-time financial markets, where performance isn’t a bonus — it’s everything.

💡 If you live for that blend of deep technical challenge, relentless optimisation, and real-world impact, apply today or contact us directly to start the conversation 💬

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Responsibilities.

Responsibilities

As a Senior C++ Developer at [DI], you will focus on developing Front Office Trading software, primarily working within the market data development teams. You will gain exposure to the full software stack, using modern development tools and concepts to deliver high quality, best practice software solutions. This will involve working on the end-to-end development of low latency software components written in C++. Project responsibilities will range from Design, Architecture and Development of greenfield projects to maintenance, latency tuning and enhancements. You will have the opportunity to take the lead on projects, mentor and support junior members of the team, and have a key input in the development of the team moving forwards.

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You'll know if you're up to the challenge

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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 Data Intellect 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.

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