Senior Engineer – Data Platform Team | C#/.NET, Kafka, Event-Driven / Streaming | Up to £130,000 + Bonus + Benefits | Hybrid | FX Trading Firm | London

Senior Engineer – Data Platform Team | C#/.NET, Kafka, Event-Driven / Streaming | Up to £130,000 + Bonus + Benefits | Hybrid | FX Trading Firm | London

I'm currently working with a leading London-based FX trading technology team that is looking to hire a Senior Engineer to join its Data Platform team and help scale a mission-critical, real-time platform powering high-volume electronic trading systems.

This isn't a typical backend development role. It sits at the intersection of high-performance engineering and modern data platform architecture, focused on designing and building distributed systems capable of processing and streaming vast volumes of trading data in real time.

⚡ When market volatility increases, trade and order volumes can surge dramatically within seconds. The platform must remain exceptionally fast, resilient, and fault-tolerant under extreme load. The team is looking for engineers who enjoy solving complex engineering challenges where scalability, concurrency, low latency, and performance are fundamental.

This is an opportunity to work on genuinely large-scale distributed systems where you'll tackle difficult technical problems, influence platform architecture, and build technology that sits at the heart of a front-office trading environment.

💻 Tech Stack

Key technologies include:

C# / .NET (currently .NET 8 with ongoing investment in the latest .NET versions)

Kafka or similar event-streaming technologies (RabbitMQ, Kinesis, Azure Service Bus, etc.)

PostgreSQL and large-scale relational databases

Real-time data pipelines and distributed systems

Event-driven microservices architecture

🧠 What You'll Be Doing

Designing and scaling high-throughput real-time data ingestion pipelines

Building and enhancing event-driven platform services

Processing and distributing large volumes of live market and trading data

Designing resilient, scalable, low-latency backend services

Collaborating with product owners and engineering teams to deliver production-ready solutions

Contributing to the technical direction of a highly scalable data platform

💰 Package

💰 Base Salary: Up to £130,000 + Bonus + Comprehensive Benefits

📍 Location: London (Hybrid – 3 days per week)