Sr. Software Engineer, Frontend (React)

TL;DR

Sr. Software Engineer, Frontend (React): Build scalable frontend applications using modern React patterns and a component-driven architecture with an accent on reusable component libraries, robust testing strategies, and AI-assisted development tools. Focus on optimizing client-side performance, ensuring production readiness through observability, and driving engineering best practices.

Location: Remote from Northern Ireland

Company

Intelligent communication platform serving Fortune 100 companies, reaching 17 million employees daily to improve workforce experience.

What you will do

• Build scalable frontend applications using modern React patterns and component-driven architecture.
• Design and implement reusable, accessible component libraries with documentation.
• Define frontend testing strategy including unit, integration, E2E, visual regression, and user interaction coverage.
• Optimize client-side performance and ensure reliability via observability, error monitoring, and incident resolution.
• Leverage AI tools like GitHub Copilot and Claude to accelerate development while maintaining code quality.
• Lead code reviews, mentor engineers, and collaborate with Product and Design on UI implementation.

Requirements

• 5+ years building reliable, high-performance frontend applications at scale
• Expertise in React (Hooks, State Management), TypeScript, modern tooling (Vite, Webpack)
• Proficiency with Jest, React Testing Library, Cypress/Playwright
• Experience building design systems or component libraries focused on WCAG accessibility
• Ability to use and validate AI-assisted coding outputs (Claude, Copilot)
• Bachelor’s in CS or equivalent practical experience

Nice to have

• Experience with Ruby on Rails, Node.js, or AWS/Cloud infrastructure (Docker, Kubernetes)

Culture & Benefits

• High-growth, inclusive environment rewarding ideas from all.
• Excellent PTO program and great health benefits.
• Casual, friendly remote work setup with focus on personal and professional growth.
• Leadership committed to employee development.