Senior Software Engineer - React Native | Mobile

Trivelta builds the technology that powers a modern online sports betting & casino platform. As a Senior Mobile Software Engineer, you will shape the core product platform, ensuring a seamless and engaging user journey while translating product concepts into production-ready code.

Responsibilities:

• Build and maintain mobile user-facing features using React Native and TypeScript, delivering high-performance experiences across Android and iOS, while using Next.js to provide shared backend services that power both mobile and web applications
• Collaborate with designers and backend engineers to deliver polished interfaces and intuitive user flows that scale with our product
• Establish and maintain a reusable component library and design system to accelerate development and ensure consistency across the platform
• Contribute ideas that shape product direction and deliverables, balancing speed with quality in a fast-paced startup environment

Requirements:

• Strong proficiency with React Native and TypeScript to deliver native mobile applications
• Experience designing and implementing complex product flows and interactive user interfaces
• Demonstrated ability to think about scalability, maintainability, and performance in frontend architecture
• Proven track record of ownership across the full feature lifecycle in dynamic, startup-like environments
• Based in Barcelona
• Fluent in English
• Minimum 4 years of relevant experience
• EU work authorization required — no visa sponsorship