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Posted 21 July, 2026

Fullstack Developer

Devonshire Hayes Recruitment Specialists Limited
London, ENG, GB Full Time

Job Description

A growing financial technology business is seeking a Full Stack Developer with strong front-end expertise to join a small Agile technology team delivering real-time trading and business-critical applications. You'll play a key role in developing new features, enhancing existing systems, and contributing to a modern cloud-based architecture.

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Key Responsibilities

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  • Translate user stories into scalable technical solutions.
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  • Design, develop, test and deploy microservices-based applications.
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  • Build responsive, real-time trading UIs and front-end workflows.
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  • Create UI prototypes and proof-of-concepts for business stakeholders.
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  • Collaborate within an Agile/Scrum development environment.
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  • Support production systems and troubleshoot issues when required.
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Technical Skills Required

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Front End

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  • Next.js
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  • React
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  • TypeScript
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  • Web Components
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  • AG Grid
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  • Real-time communication using WebSockets or SignalR
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  • Strong experience building real-time trading or financial applications
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Back End

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  • C#
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  • .NET 8
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  • Python
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  • REST APIs / Web APIs
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  • Microservices Architecture
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Messaging & Caching

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  • RabbitMQ
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  • Redis
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DevOps & Cloud

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  • Azure DevOps
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  • Git / Repos
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  • CI/CD Pipelines
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  • Azure and/or AWS
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  • Authentication and security integration
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Databases

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  • SQL Server / AWS RDS
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  • MongoDB or other NoSQL databases
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Desirable

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  • Docker
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  • Kubernetes
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  • FIX Protocol
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  • Knowledge of FX, FX Options, Forwards or other financial products
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  • Jira, Confluence, Monday dot com integrations and administration experience
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Experience Required

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  • 2-3+ years' commercial experience with React / Next.js.
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  • Experience developing front-end trading or real-time financial applications.
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  • Exposure to Azure DevOps and Agile delivery environments.
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  • Degree in Computer Science, Software Engineering or similar discipline preferred.
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Personal Attributes

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  • Self-starter with strong problem-solving skills.
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  • Able to work independently within a fast-paced environment.
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  • Strong attention to detail.
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  • Collaborative team player with excellent communication skills.
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This version removes the company references and repetitive wording while retaining all the technologies and domain-specific requirements recruiters will search for.

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