Senior .NET Developer - Electronic Trading (Hybrid, London)

Ascendion; Greater London; Hybrid; GBP 60,000 - 90,000; Full time

Job summary

Ascendion in London is seeking a Senior .Net Developer (Electronic Trading) to own delivery, design, and integration across trading systems. You will implement scalable services and APIs, with a focus on performance and reliability.

Work in a hybrid model and collaborate with partner technology teams, contributing to architecture, CI/CD, and automated testing. Strong expertise in .NET Core, REST, microservices, and modern messaging is essential.

Qualifications

• Proven experience in building .NET Core applications and OO design.
• Strong knowledge of RESTful APIs, microservices and asynchronous coding.
• Hands-on with CI/CD and testing frameworks.

Responsibilities

• Take responsibility for software delivery, ensuring quality and scope.
• Own technical design and document system architecture.
• Collaborate closely with partner technology teams.

Skills

.NET

OO Principles

ASP.NET Core

REST APIs

Multithreading

SQL/NoSQL

Microservices

Unit testing

NUnit

Moq

Cucumber

RabbitMQ

TIBCO

SignalR

Git

TeamCity

Tools

Docker

RabbitMQ

SignalR

TIBCO

Git

TeamCity

NUnit

Moq

Cucumber

Job description

Ascendion in London is seeking a Senior .Net Developer (Electronic Trading) to own delivery, design, and integration across trading systems. You will implement scalable services and APIs, with a focus on performance and reliability.

Work in a hybrid model and collaborate with partner technology teams, contributing to architecture, CI/CD, and automated testing. Strong expertise in .NET Core, REST, microservices, and modern messaging is essential.