Remote Senior Mobile Lead: React Native for Crypto Trading

Wintermeyer Ventures; New York (NY); Remote; USD 150,000 - 250,000; Full time

Job summary

Wintermeyer Ventures is seeking an experienced mobile engineer to own the React Native app across iOS and Android, while providing technical leadership as the product grows. Join a lean, fully remote team building a blockchain trading platform, with responsibilities spanning architecture, performance, and end-to-end delivery from design through app store releases.

Experience in crypto or DeFi is highly valued.

Qualifications

• 7 to 10 years of mobile development experience.
• Professional experience with React Native, React, TypeScript, and JavaScript, with apps on iOS and Android.
• Experience with mobile CI/CD, REST APIs, and real-time integrations (gRPC, SSE, WebSockets); Node.js familiarity is useful.
• Production mobile app experience in crypto, blockchain, Web3, or DeFi, with Cosmos SDK or EVM familiarity.
• Fintech or trading app experience including market data, order execution, or charting is a plus.
• Must be a US citizen or permanent resident.

Responsibilities

• Own the app's architecture, performance, reliability, scalability, and long-term maintainability.
• Build complex trading and prediction market features using React Native and TypeScript.
• Collaborate with Product, Design, and Engineering to shape APIs, integrations, and real‑time data flows.
• Lead features from technical design through implementation, testing, app store releases, monitoring, and iteration.
• Investigate production issues, improve performance, and support engineering quality through code reviews and technical discussions.

Skills

React Native

TypeScript

JavaScript

Mobile architecture

CI/CD

REST APIs

Real-time data

Node.js

Crypto familiarity

Tools

gRPC

Server-Sent Events

WebSockets

Node.js

Job description

Wintermeyer Ventures is seeking an experienced mobile engineer to own the React Native app across iOS and Android, while providing technical leadership as the product grows. Join a lean, fully remote team building a blockchain trading platform, with responsibilities spanning architecture, performance, and end-to-end delivery from design through app store releases.

Experience in crypto or DeFi is highly valued.