Senior Frontend Engineer

Summary

Join Runwise, a fast-paced climate-tech startup, as a Senior Frontend Engineer to lead the development of high-impact features enhancing user experience and driving customer satisfaction. You will design, implement, and iterate on frontend systems interacting with real-time data and control systems, directly impacting customer savings and reducing carbon emissions. This role requires 5+ years of frontend development experience, including 3+ years with React, and strong JavaScript and TypeScript skills. You will collaborate with design, product, and backend teams, building reusable UI components and ensuring a consistent user experience across browsers and devices. Runwise offers a competitive salary, comprehensive benefits, and a hybrid work environment. Make a tangible impact on reducing carbon emissions while working with talented individuals in a fast-growing company.

Requirements

• You have 5+ years of frontend development experience, including 3+ years with React
• Familiarity with modern React concepts, including state management, functional components, and hooks, is essential
• Experience with common React libraries including React Router, Recharts, Redux, Redux Toolkit and RTK-Query
• You are passionate about building great user experiences and working on complex, data-rich applications
• You have strong JavaScript and TypeScript skills, and are comfortable with modern frontend tooling, including Vite, NextJS, Webpack, Babel, and ESLint
• You are experienced with frontend automated testing technologies like Vitest, Jest, or Cypress
• You’re comfortable working with REST APIs and collaborating with backend teams

Responsibilities

• Being a core contributor to our React-based web applications, delivering responsive, reliable, and accessible interfaces
• Collaborating closely with design, product, and backend teams to build new features that empower our users to monitor and control energy systems
• Building reusable UI components and libraries with performance and scalability in mind
• Helping define and improve frontend architecture and development standards
• Monitoring performance and addressing UI-related issues, including usability, speed, and responsiveness
• Ensuring a consistent experience across browsers and devices

Preferred Qualifications

Experience with Native iOS, Native Android, React Native, or mobile web development is a big plus

Benefits

• Medical, dental, and vision insurance
• HSA & FSA options
• Paid Parental Leave
• Access to Talkspace & Health Advocate
• Flexible PTO
• Commuter Benefits
• 401K
• Company-paid life insurance
• Voluntary supplemental life insurance
• Free in-office lunch on Wednesdays
• Hybrid work environment
• Summer Fridays
• Monthly L&D Series
• Employee Resource Groups (e.g. DEIB Committee, Run Club)