Founding Frontend Engineer
Core
Building LeagueLine, a fintech platform for youth sports to manage team finances, payments, and logistics via a mobile app and web dashboard.
Role type
Founding Frontend Engineer (React / React Native)
Builds
Mobile app for parents/coaches and web dashboard for league directors
Domain
Fintech / Youth Sports
Deliverable
production ML models | product features
Required skills
React, React Native, product ownership, UX design, architecture definition, rapid shipping
Preferred skills
early-stage product experience, simplicity over complexity, high-impact mindset
Technologies
React, React Native
Responsibilities
Lead all frontend development, define architecture, make product decisions, build mobile app, build web dashboard
Seniority
Founding, hands-on IC
Rewrite
## About the Role
Youth sports run on a messy, informal system; coaches collecting money in personal accounts, juggling group chats, and tracking everything in spreadsheets. It creates real problems: poor organization, lack of transparency, and increasing tax risk (especially with recent 1099-K changes).
We're building LeagueLine, a platform that replaces this with:
- A compliant, centralized system for team finances
- Simple payment flows for parents
- Tools to manage teams, communication, and logistics in one place
Our goal is to make running a team as easy as using a modern fintech app.
## Current Status
- Backend infrastructure is built and functional (APIs, database, core flows)
- Early conversations and LOIs with youth sports organizations are in progress
We're looking for a founding frontend engineer to take this from working backend → real product.
## What You'll Own
You'll lead all frontend development and shape the user experience end-to-end.
### Mobile App (React Native)
- Build a fast, simple app for parents and coaches
- Payments, messaging, and team interactions
- Focus on zero-friction onboarding and usability
### Web Dashboard (React)
- Admin dashboard for league directors
- Financial visibility, team management, reporting
You'll define architecture, make product decisions, and ship quickly.
## Requirements
- Strong experience with React and/or React Native
- Comfortable owning products from early stage to production
- Values simplicity and good UX over complexity
- Prefers building and shipping over process-heavy environments
- Interested in being an early, high-impact team member
## What We Offer
- Equity: 5–7% (based on experience and scope)
- Vesting: 4 years with 1-year cliff
- No salary at this stage
This is a founding role. You should be comfortable trading short-term cash for long-term upside.
## Why Join
- Large, underserved market (youth sports)
- Clear, real-world problem (payments + organization + compliance)
- Significant ownership and influence on product and direction
- Opportunity to build something from the ground up
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