C++ Feed Handler Engineer

JR United Kingdom; London; On-site; GBP 60,000 - 100,000; Full time

Job summary

An innovative firm is seeking a C++ Feed Handler Engineer to join their elite team in London. This role focuses on building the fastest market data platform, where you will push C++ to its limits, ensuring minimal latency in real-time financial data systems. Ideal candidates will have a strong background in ultra-low latency systems, performance tuning, and a passion for developing high-performance software. Join a team that values technical excellence and offers the chance to work with cutting-edge technologies in a fast-paced environment. If you thrive in challenging settings and are eager to make an impact, this opportunity is for you.

Qualifications

• Proven track record in building ultra-low latency systems.
• Deep systems-level knowledge including performance tuning.

Responsibilities

• Develop and optimize systems for low latency market data processing.
• Drive technical direction from architecture to micro-optimizations.

Skills

C++

Performance Tuning

Concurrency

Systems Architecture

Lock-Free Data Structures

Userspace Networking

Tools

Aeron

Kubernetes

Custom Profiling Tools

Job description

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C++ Feed Handler Engineer, london (city of london)

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Client:

Stanford Black Limited

Location:

london (city of london), United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

4

Posted:

28.04.2025

Expiry Date:

12.06.2025

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Job Description:

Low Latency C++ Engineer - Market Data Systems

I am hiring for a team building the fastest market data platform on the planet.

They operate at the bleeding edge of C++ engineering, systems architecture, and real-time financial data. Their software ingests, decodes, and distributes live market data from global exchanges, with latencies measured in single-digit microseconds.

Engineers in this team work in an environment where:

• C++ is pushed to its absolute limits - with attention to every CPU cycle and cache line.
• Latency is key; performance is benchmarked and obsessively tuned.
• Code goes live in globally distributed systems supporting elite quantitative strategies.
• Engineers drive technical direction: from architecture to tooling to micro-optimisations.

Technologies in use include:

• Modern C++ on bare-metal Linux.
• Userspace networking, NUMA-aware memory design, lock-free data structures.
• Custom profiling and telemetry tools.
• Aeron, Kubernetes, and whatever else delivers speed and stability.

Ideal candidates will bring:

• A proven track record building ultra-low latency systems - in finance, gaming, telecoms, or similarly demanding domains.
• Deep systems-level knowledge, including performance tuning, concurrency, and CPU/memory architecture.
• The ability to take ownership, work independently, and deliver high-grade and production-ready code.

I want to speak to engineers who build systems that move faster than thought.