Senior Software Engineer - React Native - Payments

Kraken is a mission-focused company rooted in crypto values, aiming to accelerate the global adoption of crypto. They are seeking a Senior Software Engineer to join the Payments & Blockchain team, focusing on building systems that ensure the safety and security of client transactions while optimizing payment processes.

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

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