Software Engineer in London

Senior Consultant at Arcus Search | Scaling engineering and technology teams within Start-ups, HFT, Prop Trading Firms, Hedge Funds and Trading…
Contract Software Engineer – Data Systems / Platforms (DSP)
6-month initial contract | Onsite (potential hybrid)
A top-tier quantitative research and trading firm is looking for a Contract Software Engineer to join its Data Systems & Platforms (DSP) group.
This team is responsible for scaling data access from large compute environments and making core datasets available, consistent, and performant across research and trading. The focus is on data loading, distribution, and the underlying infrastructure that holds and serves critical datasets.
What you’ll be working on
Scaling data access for compute-heavy research workloads
Data loading and distribution across C# and JVM-based systems
Rewriting and modernising existing C# libraries
Supporting and improving core data holding and access infrastructure
Replacing legacy C# server components with newer, event-driven solutions (Kafka)
Improving reliability, throughput, and performance of data pipelines
Tech environment
C# (core services and libraries)
Kafka (migration from legacy systems)
What they’re looking for
Strong commercial experience with C# (or another typed language)
Solid data processing and data engineering experience
Experience working on data platforms or data access layers
Exposure to distributed systems and messaging platforms
Kafka experience is highly desirable
6-month initial contract with scope to extend. Onsite by default, with potential hybrid flexibility.
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