Frontend Engineer

Engineering | London (Hybrid)

We’re partnering with a global fintech platform building modern infrastructure for digital payments, on-chain banking and investment services.

The business operates across 140+ countries, integrates with 30+ trading venues to deliver deep liquidity and optimal execution, and maintains a 100% reserve model with real-time transparency of assets and liabilities.

This is an opportunity to join a high-performing engineering team shaping secure, scalable web and mobile products used by millions worldwide.

The Role

As a Frontend Engineer, you’ll focus on building and enhancing consumer and business applications across web and mobile. You’ll design and develop with three core principles in mind: maintainability, performance, and security.

You’ll work in a collaborative, cross-functional environment where frontend engineers have real ownership and influence across the full development lifecycle.

Key Responsibilities

• Develop and maintain a digital wallet experience that is secure, intuitive and performant across devices
• Build new features and optimise existing functionality for web and mobile platforms
• Collaborate closely with backend engineers to integrate APIs and services efficiently
• Participate in planning, design, development, testing, deployment and maintenance
• Write clean, scalable, high-quality code aligned with best practices
• Contribute to performance optimisation and secure coding standards

Requirements

• Strong experience with React and/or React Native
• Experience with GraphQL and RESTful APIs
• Solid understanding of web fundamentals (DOM, CORS, browser storage, request/response lifecycle)
• Strong knowledge of mobile platforms, including native modules, app lifecycle, data storage and performance optimisation (iOS & Android)
• Familiarity with modern JavaScript/ECMAScript standards
• Experience with version control systems
• Understanding of development pipelines and automation tools
• Strong communication skills and ability to work cross-functionally
• Fluent written and spoken English

Nice to Have

• Experience with additional programming languages
• Test automation experience
• Multi-language application development
• Knowledge of digital assets/cryptocurrency ecosystems
• Open-source contributions, technical writing, or community involvement

What’s On Offer

• Competitive base salary + annual performance bonus
• Hybrid working (London-based)
• Home office stipend
• Healthcare and employee assistance programs
• Generous annual leave
• Learning and development opportunities
• Inclusive, collaborative culture with strong engineering standards

If you’re excited about building secure, high-performance financial products at global scale, this is a strong opportunity to make meaningful impact.