Senior .NET Engineer | Low Latency Systems & Cloud Platform

Senior .NET Engineer, Low Latency Systems and Cloud Platform (Crypto Data Infrastructure)

Introduction

As a Senior .NET Engineer, you will join a technical environment focused on high-performance systems and low-latency data pipelines. You will be part of a lean, engineering-driven team building and maintaining the core backend services that power advanced trading infrastructures.

This work is part of a larger trading execution platform that includes market data ingestion, order routing, and portfolio-level services. You will operate in a horizontal team structure, where you are fully responsible for your area. From design to production, you will lead the entire lifecycle of the product you build.

This is a role for designing high-demand, low-latency systems that require careful, detail-oriented implementation.

You will be responsible for:

- Designing and implementing low-latency .NET microservices following Clean Architecture principles

- Building background services (WebSocket consumers, FIX clients, Kafka or EventHub producers and consumers)

- Connecting to financial market data sources and real-time streams

- Implementing core components of an advanced trading system, including order management, portfolio logic and market data pipelines

- Developing use case-driven business logic, fully decoupled from infrastructure

- Handling data persistence in high-throughput environments, with special attention to latency, consistency and storage patterns

- Integrating observability (structured logging, metrics, tracing) and implementing fault-tolerant patterns

- Participating in cloud-native infrastructure decisions.

- Leading the entire development lifecycle from initial setup to production delivery

Role tech keys

- You like to design before coding, and are passionate about the architecture of complex systems

- You will be contributing to a larger execution platform that handles both market data and order-driven workflows

- Language: C# (.NET 8)

- Architecture: Clean Architecture

- Infra: Azure Container Apps, Azure Event Hub, Redis Cache, PostgreSQL (Timescale)

- CI/CD: Azure DevOps and Terraform (IaC)

- Messaging: Kafka or Redpanda

- Data ingestion: WebSockets, REST, FIX

You're a great fit if you:

- Have 5 or more years of experience in professional .NET and C# backends

- Have experience with market data or trading systems

- Have worked with event-driven systems such as Kafka, RabbitMQ, or Event Hub

- Know how to write, test and scale background services in .NET

- Are comfortable with multithreading, async, and streaming logic

- Understand and care about system boundaries and responsibilities

- Can work close to infrastructure, including containers, CI, Terraform and logging

- Value clear documentation (without overdoing it)

Nice to have:

- Node.js, TypeScript, NestJS, Python

Job Details

Company
Quantum Technology Solutions Inc
Location
Slough, Berkshire, UK
Employment Type
Full-time
Posted