Senior Frontend Engineer with ReactJS

Surveily is a passionate startup dedicated to revolutionizing workplace health and safety standards worldwide. Our cutting-edge technology is designed to monitor and enhance conditions in some of the most demanding and high-risk environments. By harnessing the power of Machine Learning and Real-Time Data, we strive to make workplaces safer and improve the lives of countless employees every day. Join us in making a real difference.We’re on the lookout for a Frontend Engineer (React) to take ownership of our production web application and evolve it to the next level. In this role, you’ll build intuitive UIs for safety-critical workflows, craft rich dashboards and data visualizations with Highcharts, and modernize a mature React codebase—balancing new feature delivery with thoughtful refactoring and performance.Requirements:Strong experience with React (6+ years) and JavaScript (ES2019+).Hands-on experience with React Router (v5) and Redux in production.Solid understanding of frontend architecture, performance, and accessibility.Proficiency with Webpack-based build pipelines and Yarn.Experience with component and integration testing using Jest and Testing Library.Working knowledge of E2E testing (e.g., Playwright) and API mocking (MSW).Comfort collaborating with backend/ML teams and integrating real-time (WebSocket) data.Excellent Git practices and code review discipline.Your daily tasks:Own and develop Surveily’s React web app used in demanding industrial environments.Build advanced dashboards and interactive charts using Highcharts.Improve performance (code-splitting, memoization, profiling) and user experience under real-time data load.Maintain and evolve our current stack (React, Router v5, Redux, Webpack 5) and plan migrations (React 18, Router v6).Write reliable automated tests (Jest/RTL, Playwright) and keep quality high with CI checks.Collaborate closely with backend/AI to integrate real-time inference streams.Participate in code reviews, contribute to engineering standards, and ship small, frequent increments.Nice to have skills:Experience unifying styling approaches (Tailwind CSS, styled-components, Sass) and design systems.Deep familiarity with accessibility, internationalization, and complex data filtering/exploration UIs.Experience with Node-based tooling, Dockerized builds, and CI/CD pipelines.Knowledge of time/date handling (date-fns) and data formatting at scale.Practical exposure to observability for frontend (e.g., performance metrics, error monitoring).We offer you:A mission with tangible impact—your work helps keep people safe in high-risk workplaces.Real ownership of a production app and a strong voice in architecture and product decisions.Fast, supportive startup environment with direct access to founders and AI experts.Opportunities to accelerate your career through challenging, end-to-end projects.Friendly office atmosphere with hybrid and remote work options.Multisport card and private medical care (LuxMed).Gaming laptop you can take home.ESOP—employee stock options.