CareerPlanSign in

Senior Software Engineer - Frontend - Consumer

Poland💼 Full-time🗓 2026-07-30 → 2026-09-26

Core

Design, develop, and maintain high-quality consumer-facing features across web and mobile for a global crypto exchange, owning the full lifecycle from concept to production monitoring.

Role type

Senior Frontend Engineer (Consumer)

Builds

Consumer app experience for buying, selling, managing portfolios, and interacting with crypto assets

Domain

Fintech / Cryptocurrency

Deliverable

product features

Required skills

TypeScript, React, React Native, Next.js (App Router, Server Components), A/B testing frameworks, WebSockets/Server-Sent Events, modern build tooling, performance profiling, AI-assisted development workflow

Preferred skills

Fintech/crypto domain experience, cross-platform mobile release pipelines, experimentation strategies

Technologies

React, React Native, Next.js, TypeScript, Jest, React Testing Library, Playwright, Cypress, LaunchDarkly, Optimizely, Vite, Webpack

Responsibilities

Design and develop consumer-facing features across web and mobile; Drive A/B testing and experimentation strategies; Partner with Product, Design, Data, and Mobile teams; Make opinionated technical decisions on framework and architecture; Set standards for code quality, accessibility, and performance; Mentor engineers; Lead cross-platform initiatives; Stay ahead of React ecosystem tooling and AI-native development practices

Seniority

Senior, hands-on IC with mentorship responsibilities

Sourced via ashby · Listed on CareerPlan, which tracks 70,000+ jobs from 20+ sources.