Senior Front End Developer

• We are a mobile and web application (www.ohayu.com) that enables easy and fast purchases of mobile data packages in any country in the world, leveraging eSIM technology;
• Our product allows seamless use of internet services while traveling at rates much lower than roaming and without having to search for local operators or purchase physical SIM cards.

• Take ownership of the overall frontend architecture and scalability;
• Collaborate closely with the design team to translate Figma designs into high-quality, responsive user interfaces;
• Optimize website performance, speed, and accessibility across devices and browsers;
• Implement fast, iterative changes to support A/B testing and continuous UX improvement;
• Mentor and support other frontend developers, conducting code reviews and sharing knowledge.

• 7+ years of JavaScript experience;
• 5+ years of React experience;
• 4+ years of Next.js experience;
• 3+ years of Typescript experience
• Strong proficiency with the Vite ecosystem and modern build tools;
• Great knowledge of Crash Analysis Tools and Production Management;
• Independence at work, full ownership of tasks, mentoring and brainstorming skills;
• At least intermediate English level (all work communication in English).

• Familiarity with styled-components or other CSS-in-JS libraries.

• Building product-driven application with a strong emphasis on UX/UI;
• Startup environment, where your ideas are valued, and you have the freedom to innovate and take full ownership;
• Be part of a groundbreaking venture in the rapidly evolving field of eSIM technology, shaping the future of connectivity and mobile devices.

Genesis