Frontend Engineer (React)

We are looking for a Frontend Engineer to help build Fillx, a fintech product focused on crypto market workflows and trading operations.

You will work on production-facing web interfaces where clarity, performance, and reliability matter. The role is a good fit for someone who enjoys turning complex market data and operational flows into clean, fast, maintainable user experiences.

Responsibilities:

- Build and maintain React + TypeScript web interfaces.

- Work with real-time or frequently updated market and trading data.

- Design reusable UI components and predictable frontend state flows.

- Collaborate closely with backend/product stakeholders on API contracts and user workflows.

- Keep the frontend codebase readable, tested, and easy to extend.

Requirements:

- Strong experience with React and TypeScript.

- Solid understanding of browser performance, async data loading, and state management.

- Ability to build polished, practical interfaces for data-heavy workflows.

- Experience working with REST APIs and production web applications.

- Clear written communication and ownership of implementation details.

Nice to have:

- Experience with fintech, crypto, trading, or market-data products.

- Experience with charts, dashboards, WebSocket/polling flows, or high-frequency data updates.

- Familiarity with testing frontend behavior and TypeScript-heavy codebases.

Work format:

- Full remote.

- Product-focused team.

- English communication at an intermediate level or higher.