Frontend Engineer - Cyrpto and Fintech
Role Overview
Develop and maintain frontend experiences across WonnPay crypto wallets, deposits and withdrawals, transaction flows, KYC, card services, payments, and account management.
Collaborate with backend, product, UX/UI, QA, compliance, and external technology partners to deliver secure, reliable fintech products.
Key Skills for This Role
Full Job Posting
Role Overview
Develop and maintain frontend experiences across WonnPay crypto wallets, deposits and withdrawals, transaction flows, KYC, card services, payments, and account management.
Collaborate with backend, product, UX/UI, QA, compliance, and external technology partners to deliver secure, reliable fintech products.
Key Responsibilities
- Build and maintain frontend applications and crypto experiences for wallets, transactions, addresses, QR payments, and on-chain status.
- Integrate REST APIs, third-party fintech and crypto services, and blockchain-related concepts and networks.
- Implement authentication, session management, MFA, and wallet flows; deliver responsive web and mobile experiences.
- Translate designs into production interfaces, resolve bugs and performance issues, and write tested, maintainable code.
- Participate in code reviews, work with QA, and support secure, reliable production releases.
Required Skills and Experience
- At least 5 years of professional frontend development experience.
- Strong experience with React, React Native, TypeScript, or JavaScript and fintech, crypto, blockchain, Web3, wallet, or payment applications.
- Good understanding of blockchain and cryptocurrency concepts; experience with wallets, transactions, token transfers, or payment flows.
- Experience integrating REST APIs and third-party services; strong knowledge of authentication, authorization, API security, and secure frontend development.
- Experience with Git and modern CI/CD workflows; strong debugging and problem-solving skills.
- Additional experience with Expo, Web3 libraries, Fireblocks, stablecoins, multi-chain transactions, payment providers, KYC/AML, AWS, or monitoring is listed as an advantage.
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