Interface designer javascript Work, Jobs (with Salaries)

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- Full-time
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- Bachelor's degree
Quick apply
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Quick apply

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Reya DEX & Network - Senior Frontend Engineer

deCircle
London

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Job details

Full-time

Qualifications

Performance tuning
Computer Science
Stakeholder collaboration
React
Responsive web design
Master's degree
Bachelor's degree
CI/CD pipelines
Continuous integration
Front-end development
Multidisciplinary collaboration
Unit testing
Communication skills
Responsive web layout creation

Full job description

As a Senior Frontend Engineer, you will lead the development of a performant, responsive, real-time frontend application that powers the Reya DEX and Network. You’ll work closely with a highly technical team to craft a seamless user experience in a fast-paced, data-intensive DeFi environment.

We are a fully remote, forward-thinking team with an ambitious roadmap and a strong bias toward execution.

This role is ideal for someone who is passionate about DeFi, Web3, engineering rigor, security, and speed, and who brings 8+ years of frontend engineering experience with a deep commitment to code quality and modern testing practices.

Responsibilities

Lead the architecture and development of Reya’s real-time trading and network interface
Build highly performant, responsive UI components for data-heavy DeFi applications
Design frontend systems that handle live market data, state synchronization, and complex user interactions
Collaborate closely with backend, protocol, and design teams to deliver a seamless product experience
Ensure high standards of code quality, testing, and maintainability across the frontend codebase
Contribute to frontend security practices and safe interaction with on-chain systems
Optimize performance for low-latency updates and real-time feedback
Participate in technical discussions, reviews, and roadmap execution

Real-Time Interface Development: Design and implement dynamic, interactive user interfaces that can handle real-time data feeds, such as live order book updates, price updates, trade executions. Your work will directly impact the user experience for traders.
Collaboration & Cross-Functional Leadership: Partner with the product team and UX/UI designer to translate complex requirements into engaging, intuitive interfaces. Work side-by-side with backend engineers to ensure smooth data flow and API integration.
Performance Optimization: Optimize application performance through efficient code, advanced rendering techniques, and smart resource management. You will focus on minimizing load times and ensuring smooth, lag-free interactions even under heavy data loads.
Responsive Design: Build responsive and accessible frontends that perform consistently across different devices and browsers, ensuring a high-quality user experience on desktops, tablets, and mobile devices.
Modern Frontend Architecture: Utilize modern frontend frameworks (such as React) and state management libraries to architect scalable and maintainable codebases. Embrace best practices in component design, testing, and documentation.

Minimum Qualifications

6+ years in frontend development with a solid background in building high-performance, real-time web applications

Deep expertise in JavaScript & TypeScript, modern web frameworks, and advanced CSS techniques.
Deep knowledge of the architecture of performant client-side React applications
Comfortable working in a dynamic environment where priorities may shift rapidly. Your proactive approach and strong communication skills help drive project success.
You have a strong commitment to writing clean, maintainable code and are well-versed in testing methodologies including unit, integration, and end-to-end testing.
Demonstrated experience with web sockets or other real-time data protocol.
Prior experience working closely with product, design, and backend teams in a remote or distributed setting

Preferred Qualifications

Proven experience (8+ years) in frontend development, particularly within fintech, trading, or real-time data applications.
Knowledge of server-side rendering (e.g., Next.js) and progressive web app (PWA) development is a plus
Familiarity with cloud platforms and continuous integration/continuous deployment (CI/CD) pipelines to streamline development and delivery processes
Bachelor's or Master's degree in Computer Science or a related field or equivalent experience
Familiarity with the web3 frontend stack (ethers/viem, client-side private key management, etc.)

Quick apply

Refine Your Search

interface designer javascript jobs

Reya DEX & Network - Senior Frontend Engineer

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Member of Technical Staff - Software Engineer

AI Product Engineer

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ServiceNow Developer

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Lead Frontend Engineer - Java & Open Source (Private & FS)

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