Senior Frontend Engineer

Summary

Join SentinelOne, a leading cybersecurity company, as a Frontend Engineer to build an industry-leading AI SIEM solution. You will design, build, and test the Asset Inventory frontend using modern technologies like React and TypeScript. Collaborate with backend engineers, UX designers, and product managers to create a seamless user experience. Take ownership of features and product components, driving them to success. Improve the day-to-day experience of threat investigators and cyber analysts worldwide. Enjoy flexible hybrid work options and a competitive benefits package.

Requirements

• Deep expertise in React and TypeScript, with hands-on experience building reusable UI components and scaling complex front-end applications
• Solid understanding of unit, integration, and end-to-end testing
• Experience working with both REST and GraphQL APIs
• Proactive involvement in code reviews, with a focus on driving improvements in code quality and team standards
• Strong attention to detail, ensuring users get the best possible UX
• Awareness of web accessibility standards and the ability to build accessible user interfaces
• Solid understanding of CSS and frontend performance optimization
• Ability to tackle complex scenarios, problem-solve efficiently, and create intuitive user experiences
• Excellent communication and collaboration skills—you’ll be working across teams to bring ideas to life

Responsibilities

• Design, build, and test the Asset Inventory frontend using modern technologies like React, TypeScript, TanStack, Playwright, and more
• Take full ownership of the feature development lifecycle, from concept to production
• Collaborate closely with backend engineers, UX designers and product managers to create a seamless, intuitive user experience
• Conduct code and design reviews, providing constructive feedback to continuously improve quality
• Optimize performance, scalability and security — our product handles large-scale security data and must be both fast and robust

Benefits

• Grant of Restricted Stock Units with a 4-year vesting plan
• Annual performance-based bonuses
• An employee stock purchase plan
• Flexible Time Off
• On top of the standard 5 weeks vacation
• Flexible paid sick days
• Fully paid Short Term Sick/Nursing Leave
• 16-week parental leave
• Grandparent leave
• Additional company holidays
• Private medical care (for you and +1)
• Premium life insurance
• Pension contribution
• A Global Employee Assistance Program
• Monthly meal and well-being allowance
• High-end MacBook/Windows laptop
• Work-from-home support
• In-office refreshments
• LinkedIn Learning
• Internal mentoring
• Educational support
• Generous referral bonuses
• Optional company events (sports, BBQs, charity)
• Flexible hybrid work in Prague (Karlin), Brno (Clubco), or remotely across CZ/SK