Job Description

About the Role

We are looking for a Senior Frontend Engineer to reimagine Xeno's frontend, creating a robust and scalable codebase. This individual will be responsible for setting up scaffolding, best practices, and integrating modern UX/UI components with a performance-first mindset. Additionally, they will play a critical role in integrating product usage monitoring tools to drive data-informed UX improvements and have a strong understanding of backend systems to lead projects end-to-end. This role is ideal for a highly skilled individual contributor with the potential to evolve into an Architect/Principal Engineer or team lead as the organization scales.

What You'll Do• Rearchitect the frontend codebase with best practices to ensure scalability, maintainability, and performance.
• Establish scaffolding and design patterns to create a foundation for all future frontend projects.
• Collaborate with product designers to revamp UI/UX , leveraging modern, reusable design systems and components.
• Integrate product usage tools (e.g., Amplitude, FullStory, Hotjar) to monitor and improve user experience based on data insights.
• Optimize for frontend performance , ensuring applications are fast, responsive, and efficient.
• Collaborate with backend engineers to lead end-to-end projects , understanding and influencing API and system design.
• Mentor and guide junior developers or interns, setting high standards for frontend engineering excellence.



Tech Stack, You'll Work With• Frontend Framework: React.js (mandatory), 3-5
• State Management: Redux, Context API, Zustand
• Styling: TailwindCSS, Emotion, Styled Components
• Build Tools: Webpack, Vite, Babel
• Testing: Jest, Cypress, React Testing Library
• Performance Optimization: Code splitting, lazy loading, reducing bundle size, optimizing Web Vitals
• Product Usage Tools: Amplitude, FullStory, Hotjar, Mixpanel, or similar
• Backend Knowledge: Java, Typescript, Node.js, Express.js, REST APIs, GraphQL
• Version Control & CI/CD: Git, GitHub Actions, Jenkins
• Other Tools: Storybook, ESLint, Prettier



What We're Looking For

Technical Expertise• Advanced proficiency with React.js and building scalable, high-performance applications.
• Strong experience in building reusable UI components and design systems using React and modern CSS frameworks.
• Expertise in integrating product usage monitoring tools like Amplitude, FullStory, or Hotjar to improve user experience.
• Deep knowledge of frontend optimization techniques to ensure applications are fast and efficient.
• Sufficient understanding of backend systems (Node.js, REST/GraphQL APIs) to lead end-to-end projects and ensure seamless integration between frontend and backend.
• Strong debugging and testing skills, ensuring robustness and reliability.



Leadership and Work Ethic• Proven experience mentoring or leading junior developers or interns.
• A strong individual contributor (IC) with the ability to define architectural direction while being hands-on.
• Relentless focus on delivering high-quality work and solving problems end-to-end.



Personality Traits• Hardworking, self-driven, and motivated to take ownership of large-scale projects.
• Thrives in small, agile teams with high individual responsibility.
• Stays up-to-date with the latest trends in frontend development and advocates for the best tools and practices.



Why Join Xeno?• Lead the frontend rearchitecture for a growing B2B SaaS platform.
• Define best practices and set the foundation for future frontend projects.
• Work on meaningful projects with end-to-end ownership and direct impact on product experience.
• Collaborate with a talented team and grow into a leadership or technical architect role as Xeno scales.
• Competitive salary and ESOPs to align your growth with the company's success.