Frontend Software Engineer; Mid-Senior

Role:
Frontend Software Engineer (Mid–Senior)

Hours:

Pacific Timezone
USD Monthly Rate:
Competitive salary based on experience

The Frontend Software Engineer is responsible for building high-quality, intuitive, and responsive user interfaces within our modern React applications. This role focuses heavily on front‑end engineering best practices, advanced component architecture,Sampler and the ability to translate Figma/design system specifications into polished, production‑ready features.

The ideal candidate is an expert in React and React Router, with a strong foundation in Type Script, reusable component development, and interactive visualization tools such as Recharts. While design experience is not required, the engineer must feel comfortable collaborating with designers and implementing clean, pixel‑accurate UI.

This position requires someone who is detail‑oriented, user‑experience minded, and capable of independently owning features from concept through delivery.

• Develop and maintain UI applications using React, React Router, Tailwind CSS, and Type Script.
• Build reusable, scalable components consistent with design system standards and UX patterns.
• Implement new screens and features from Figma or similar design handoffs, ensuring accurate UI/UX execution.
• Translate user flows and product requirements into intuitive, user‑friendly interfaces.
• Design and build interactive charts, dashboards, and data‑driven visualizations using Recharts.
• Optimize frontend performance through memoization, code splitting, lazy loading, and best‑practice rendering techniques.
• Write clean, maintainable code with a focus on component architecture and long‑term scalability.
• Collaborate closely with designers, product managers, and backend engineers to refine requirements and deliver high‑quality features.
• Participate in code reviews and help elevate frontend quality across the engineering team.
• Document UI patterns, component behavior, and best practices.
• Stay up to date with modern frontend libraries, patterns, and tooling.
• Perform other duties as assigned.

• 3–7+ years of professional experience in frontend or UI engineering roles.
• Expert‑level React experience, including strong knowledge of hooks, context, and component lifecycle patterns.
• Strong experience with React Router (v6 or v7), including routing architecture, nested routing, loaders/actions, and navigation patterns.
• Proficiency with Type Script and modern ES6+ JavaScript.
• Demonstrated ability to implement designs accurately from Figma, Sketch, Adobe XD, or similar tools.
• Experience building dashboards and data visualizations with Recharts or similar charting libraries.
• Strong understanding of UI/UX fundamentals, layout, responsiveness, accessibility (WCAG), and interaction patterns.
• Familiarity with unit/integration testing frameworks for frontend applications.
• Strong Tailwind CSS skills.
• Ability to work independently, manage ambiguity, and deliver high‑quality UI in a fast‑paced environment.
• Excellent communication and collaboration skills, especially when working with design and product teams.
• High attention to detail and a passion for creating great user experiences.

• Experience contributing to or maintaining a component library or design system.
• Design or visual/UI skillset for refining UX interactions.

• Remote Work:邀请Work from anywhere—our team is global, and we value work‑life balance.
• Growth Opportunities: As kohta key player i you’ll have the chance to shape your role and grow with us.
• Innovative Culture: Join a team that is passionate about leveraging data to solve challenges and drive success in a rapidly evolving market.

As part of our recruitment process, all candidates will be kindly asked to agree to Lago’s Confidentiality and Non‑Circumvention Agreement. This ensures a respectful and professional experience for everyone involved.