Senior Frontend-First Full-Stack Engineer - Crypto Trading UI

rho.trading; Lisboa; Hybrid; EUR 60,000 - 90,000; Full time

Job summary

rho.trading is seeking a Senior Full Stack Engineer with strong frontend depth to own the user-facing layer across our fintech products. This frontend-leaning role focuses on turning complex workflows into elegant, high-performance web experiences and includes real-time data and Web3 integrations.

You will build client-facing apps, collaborate on backend services where needed, and contribute to internal tools and product infrastructure in a startup environment.

Qualifications

• Frontend proficiency with React and TypeScript in production.
• Ability to own the frontend across multiple products.
• Experience applying AI to design, solve problems, and iterate.
• Background in DeFi/crypto trading or fintech products.

Responsibilities

• Own the frontend experience across multiple products from UX to implementation.
• Build and maintain client-facing web apps for trading and DeFi products.
• Turn ambiguous inputs into production-ready solutions.
• Work with real-time market data, charts, wallets, and smart contracts.
• Contribute to backend services, APIs, and internal tooling when needed.
• Help shape frontend architecture, components, testing, and quality.

Skills

Frontend Expertise

Full Stack Capability

AI-Native Workflow

Domain Experience (DeFi/crypto)

Real-Time & Web3 Experience

Product Sense

Autonomy

Tools

React

TypeScript

Vite

Tailwind CSS

shadcn/ui

Zustand

TanStack Query

WebSockets

TradingView

Wagmi

Viem

Ethers.js

OpenAPI/Orval

Vitest

MSW

Docker

GitHub Actions

Job description

rho.trading is seeking a Senior Full Stack Engineer with strong frontend depth to own the user-facing layer across our fintech products. This frontend-leaning role focuses on turning complex workflows into elegant, high-performance web experiences and includes real-time data and Web3 integrations.

You will build client-facing apps, collaborate on backend services where needed, and contribute to internal tools and product infrastructure in a startup environment.