Senior Front End Developer

About the role

This Senior Front End Developer position at Genesis focuses on enhancing the user experience and interface of their product. The role involves taking ownership of the frontend architecture, ensuring scalability, and translating design concepts into responsive interfaces. A key aspect is optimizing website performance across various devices and browsers to deliver a smooth user journey.

The successful candidate will work closely with the design team, implementing changes based on A/B testing and other UX improvement initiatives. This role also includes a mentorship component, supporting and guiding other developers within the team. The work environment is described as a startup, which suggests a focus on innovation and valuing individual contributions.

Success in this role means not only delivering high-quality, performant frontend solutions but also contributing to a product-driven approach with a strong emphasis on UX/UI. The company operates in the eSIM technology field, offering an opportunity to be part of a venture in a developing industry. The role can be performed remotely or from offices in Warsaw or Kyiv.

The annual salary for this Senior Front End Developer role is between $115,000 and $195,500 USD.

Skills that matter here

• JavaScript: The role requires extensive experience with JavaScript, indicating a need for deep programming proficiency in the language.
• React: Candidates need significant experience with React, as it is central to building the product's user interfaces.
• Next.js: Proficiency in Next.js is required, suggesting the use of this framework for server-side rendering or static site generation.
• TypeScript: Experience with TypeScript is necessary, indicating a focus on type-safe code for maintainability and scalability.
• Vite: Familiarity with the Vite ecosystem is expected, pointing to its use for modern build processes and development tooling.
• CSS-in-JS: Knowledge of CSS-in-JS is listed, implying its application for styling components within the application.

Who this role suits

• Someone who enjoys taking full ownership of frontend architecture and driving technical decisions.
• An individual who thrives in a collaborative setting, working closely with design teams to bring concepts to life.
• A developer who is passionate about optimizing performance and improving user experience through data-driven changes.
• A mentor who is capable of guiding and supporting fellow developers, sharing knowledge and best practices.

From the employer

• Take ownership of the overall frontend architecture and scalability.
• Collaborate with the design team to translate Figma designs into responsive user interfaces.
• Optimize website performance across devices and browsers.
• Implement changes for A/B testing and UX improvement.
• Mentor and support other frontend developers.

• 7+ years of JavaScript experience.
• 5+ years of React experience.
• 4+ years of Next.js experience.
• 3+ years of TypeScript experience.
• Proficiency with the Vite ecosystem and modern build tools.
• Knowledge of Crash Analysis Tools and Production Management.
• Independence and mentoring skills.
• Intermediate English level.

• Build product-driven applications with a strong emphasis on UX/UI.
• Startup environment valuing your ideas and innovation.
• Be part of a venture in the eSIM technology field.