Senior Low-Latency C++ Systems Architect

iSAM; Greater London; On-site; GBP 120,000 - 180,000; Full time

Job summary

iSAM is seeking a hands-on senior engineer to build and operate the low-latency distributed systems at the core of its trading platform, including market data, order routing, pricing, execution, risk, and the messaging fabric that ties them together.

You will join a collaborative team where you have a strong technical voice, contribute to design, drive both the systems and the engineering processes to a better state, and deliver improvements end to end.

Qualifications

• Fluent in modern C++ and able to design latency-critical components.
• Proven track record designing low-latency distributed systems in a financial/trading environment.
• Understanding of latency drivers across network, hardware, OS, and language layers.
• Demonstrated ability to deliver large efforts across multiple engineers and teams.
• Extensive production experience and the ability to avoid common pitfalls.
• Experience with exchange connectivity or market data is a plus.

Responsibilities

• Contribute to and shape the design of latency-critical distributed components: market data, order routing, execution, risk, and the messaging fabric between them.
• Drive systems and engineering processes to a better state: identify weaknesses, propose direction, and deliver improvements end to end.
• Reason about the full latency stack across network, hardware, OS, and language layers, and make deliberate, measured trade-offs.
• Deliver at scale across multiple engineers and teams: set technical direction, align stakeholders, and coordinate delivery.

Skills

Low-latency distributed systems

C++

Trading floor experience

Problem solving under pressure

Delivery of large projects

Tools

C++

Job description

iSAM is seeking a hands-on senior engineer to build and operate the low-latency distributed systems at the core of its trading platform, including market data, order routing, pricing, execution, risk, and the messaging fabric that ties them together.

You will join a collaborative team where you have a strong technical voice, contribute to design, drive both the systems and the engineering processes to a better state, and deliver improvements end to end.