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Founding Frontend Engineer (React/TypeScript) – Consumer Trading Platform

syndesus, inc. • United State
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Seed-stage NYC consumer trading startup seeks its first frontend engineer to own and lead development of a web-based sports investing platform. You will build fast, intuitive trading and portfolio experiences, drive frontend architecture, and collaborate directly with cofounders on product and technical roadmap. Requires 2-8 years of frontend engineering experience with React, TypeScript, and a track record of shipping polished consumer web applications.

Key Highlights
First frontend engineer at a seed-stage startup with founding equity (1-2%)
Own and lead development of the consumer web trading platform
Work directly with cofounders to shape product and technical roadmap
Base salary $175K-$225K plus 1-2% equity
On-site in Manhattan, 4-5 days per week
Key Responsibilities
Own and lead development of the company's consumer web trading platform.
Build fast, intuitive trading and portfolio experiences that make onchain settlement invisible to sports fans.
Work directly with the two cofounders to shape the product and technical roadmap.
Drive frontend architecture decisions across a service-based stack, managing complex application state and real-time data flows.
Help design APIs and transaction flows that bridge blockchain infrastructure and a seamless user experience.
Help set a culture of high ownership and velocity as a true founding team member.
Technical Skills Required
React TypeScript JavaScript
Benefits & Perks
Base salary $175,000-$225,000
1-2% founding engineer equity
Health coverage
Expensed lunches
Laptop and desktop provided
Nice to Have
Experience building trading products, fintech platforms, or anything with real-time data and charts.

Job Description

A seed-stage consumer trading startup in New York City is hiring its first frontend engineer, with a $175K to $225K base and 1 to 2% founding equity.

  • Type: Full-time
  • Location: On-site, New York City
  • Experience: 2 to 8 years of frontend engineering
  • Base salary: $175K to $225K, depending on experience
  • Equity: 1 to 2% (founding engineer equity)
  • Tech stack: React, TypeScript, JavaScript

About the company

The company is building an exchange where sports fans can invest in the performance of individual professional athletes and trade 24/7, all season long. Unlike single-game player props or fantasy roster management, fans hold positions in players over time.

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