Full Stack Developer

Devonshire Hayes Recruitment; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

Devonshire Hayes Recruitment is seeking an experienced Full Stack Developer for a greenfield trading platform. You will lead on responsive, real-time trading interfaces using Next.js and React, while contributing to backend services, APIs and integrations.

The role is a 12-month fixed-term contract with 3 days onsite per week, in a fast-paced Agile environment. Candidates should bring 6–8 years UI experience and 2–3 years backend development to the team.

Qualifications

• Strong UI experience with Next.js, React and TypeScript.
• Real-time trading interfaces using WebSocket or SignalR.
• Backend development with C#, .NET 8 and Python.
• Experience with RESTful APIs and Web API.
• Distributed systems with RabbitMQ or Kafka.
• Redis caching and Protobuf.
• SQL Server, AWS RDS and MongoDB or NoSQL.

Responsibilities

• Prototype interfaces with business users and deliver features.
• Write integration tests and support production systems.
• Collaborate in a small Agile team to ship features.

Skills

Next.js

React

TypeScript

Web Components

AG Grid

WebSocket

SignalR

C#

.NET 8

Python

REST APIs

RabbitMQ

Kafka

Redis

Protobuf

SQL Server

AWS RDS

MongoDB

Azure DevOps

Git/GitHub

CI/CD

Jira

Tools

Jira

Azure DevOps

Git/GitHub

Job description

We're recruiting an experienced Full Stack Developer to help build a greenfield trading platform for a financial services business.

This is a full-stack role with a strong front-end/UI emphasis. You'll lead on responsive, real-time trading interfaces using Next.js and React, while also contributing to backend services, APIs and integrations.

It is a 12 month Fixed Term Contract requiring 3 days per week onsite.

Key requirements

• Strong trading application UI experience using Next.js, React, TypeScript, Web Components and AG Grid.
• Real-time communication using WebSocket or SignalR.
• Backend development with C#, .NET 8, Python, RESTful APIs and Web API.
• Distributed systems and microservices, with RabbitMQ or Kafka messaging.
• Experience with Redis caching and Protobuf.
• SQL Server, AWS RDS and MongoDB or similar NoSQL databases.
• Azure DevOps, Git/GitHub, CI/CD pipelines and Jira.

You'll work closely with business users to prototype interfaces, deliver features, write integration tests and support production systems within a small Agile team.

Ideally, you'll bring 6-8 years' UI experience, alongside 2-3 years of backend development.

Desirable

Docker, Kubernetes, FIX protocol, FX Options/Forwards, and integrations with Monday.com or Confluence.