Team
Senior Frontend Developer to join our tech team and play a key role in enhancing our product and elevating the user experience.
Work format: fully remote or from our offices in Warsaw or Kyiv.
Your tasks
- 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.
Who you are
- 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).
Nice to have
- Familiarity with styled-components or other CSS-in-JS libraries.
Tech stack
- JavaScript
- React
- Next.js
- TypeScript
- Vite
- CSS-in-JS (preferred style: styled-components)
Why join us
- Building product-driven application with a strong emphasis on UX/UI;
- Startup environment where your ideas are valued and you have 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.
Ready to apply for this role?
Apply Now →
