Senior Software Engineer - React Native - Payments

Summary

Join Kraken's Payments & Blockchain team as a Senior Software Engineer and contribute to building and maintaining high-quality payment processing systems. You will design, develop, and maintain systems that communicate with various blockchains to ensure timely transaction processing and fund security. The role involves building seamless transaction experiences, optimizing fund transfers, and creating an efficient onboarding experience for users. You will also develop innovative features, set coding standards, and mentor other engineers. This is a fully remote position, and Kraken is committed to a diverse and inclusive workplace.

Requirements

• 6+ years of experience in software development, with a focus on web and mobile applications
• Deep understanding of JavaScript/TypeScript and proficiency with React Native frameworks
• Strong experience of API design, security, and performance optimization
• Experience with Next.js and WebSockets
• Experience with frontend testing frameworks
• Familiarity with modern front-end build pipelines and tooling
• Strong understanding of UI/UX best practices and principles
• Experience within a large technology organization or fast growing startup
• Hands-on experience in consumer payments, crypto or fintech mobile applications
• Strong written and verbal communication skills in English
• Available in EU afternoons

Responsibilities

• Design, develop, and maintain high-quality payment processing systems using React.js and other relevant technologies
• Build and refine seamless transaction experiences that optimize fund transfers for speed, security, and reliability
• Ensure an efficient and intuitive onboarding experience for users interacting with payment systems, reducing friction and improving trust
• Develop innovative features that enhance engagement, retention, and loyalty within the payments ecosystem
• Set the standard for high-quality, secure code and lead the development of complex financial software systems
• Influence technical decisions, contribute to strategy discussions, and shape product/domain decisions with a deep understanding of financial systems and security best practices
• Mentor engineers, foster a culture of technical excellence, and drive process improvements in financial software development
• Design and implement scalable, maintainable, and fault-tolerant financial systems, ensuring compliance and security best practices

Preferred Qualifications

• Familiarity with native mobile app development (iOS/Android)
• Knowledge of the cryptocurrency industry and blockchain technology