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# Frontend Engineer

- **Company:** FULLSTACK INC
- **Location:** New York, NY, United States
- **Salary:** $185,000.0 - $300,000.0
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), Computer Animation, Cascading Style Sheets (CSS), Continuous Integration, Data Visualization, TypeScript, Web Applications, WebSocket, ReactJS, Cypress (Programming Language), Backend, Real Time Data, Front End Software Development, JestJS, Restful APIs
- **Published:** September 24, 2026
- **Apply:** https://www.thejobnetwork.com/job/9542985f-0b00-4790-9202-74ad02e0903a/frontend-engineer

## About the Role

* Strong TypeScript, React, JavaScript and CSS
 * Experience with real-time data interfaces and WebSockets
 * Frontend performance engineering
 * Testing (Jest, Vitest, Cypress) and CI/CD
 * Ability to work on-site in New York 5 days a week

Nice to Have

 * Trading, fintech or crypto product experience
 * Data visualization and animation (WAAPI)

Tech Stack

## Description

Fullstack is building a single front end for crypto trading, bringing perpetuals, cross-chain spot and prediction markets into one portfolio-margin trading experience with a single unified balance. One co-founder built Insilico Terminal, which the company describes as the leading order execution and management system for centralized exchanges; the other ran one of the top on-chain and centralized-exchange HFT firms. Fullstack has raised $15M+ and has a team of about 10.

The Role

As a Frontend Engineer at Fullstack you will build and scale the core user experience of a retail trading platform designed for speed, clarity and trust. You will own major frontend systems end to end, from architecture to performance, turning complex real-time market data into interfaces that feel intuitive for everyday traders, and ship frequently with design and backend.

What You Will Do

 * Build and maintain full-featured web applications and reusable UI libraries that are fast, accessible and scalable.
 * Develop high-performance, interactive charts and real-time visualizations.
 * Optimize speed and reliability with advanced caching to reach sub-second load times.
 * Integrate complex REST APIs and WebSocket streams with robust client-side cached state.
 * Configure and maintain CI/CD pipelines for builds, previews, testing and rollbacks.


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