SentinelOne

Senior Frontend Engineer (React, TS) - new Data Security product

Remote Slovakia
React TypeScript GraphQL API CSS
Description

About Us

SentinelOne is defining the future of cybersecurity through our XDR platform that automatically prevents, detects, and responds to threats in real-time. Singularity XDR ingests data and leverages our patented AI models to deliver autonomous protection. With SentinelOne, organizations gain full transparency into everything happening across the network at machine speed – to defeat every attack, at every stage of the threat lifecycle. 

We are a values-driven team where names are known, results are rewarded, and friendships are formed. Trust, accountability, relentlessness, ingenuity, and OneSentinel define the pillars of our collaborative and unified global culture. We're looking for people that will drive team success and collaboration across SentinelOne. If you’re enthusiastic about innovative approaches to problem-solving, we would love to speak with you about joining our team!

What are we looking for?

SentinelOne is building a cutting-edge Data Security Posture Management (DSPM) product from the ground up (more about the concept here) as part of our industry-leading cloud security offering, and we need a talented Frontend Engineer to craft an intuitive, scalable, and high-performance interface that security teams will love. This is your opportunity to own the frontend architecture, design, and implementation of a security SaaS product from day one. Imagine the agility of a startup combined with the impact of a global cybersecurity leader.

What will you do?

  • Design, build, and test the DSPM frontend using modern technologies like React, TypeScript, 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

What knowledge and skills should you bring?

  • 3+ years of hands-on frontend development experience
  • Proven expertise in React and TypeScript
  • Experience working with REST & GraphQL APIs
  • Strong knowledge of building reusable UI components and scalable frontend architectures
  • 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
  • Advantage: Deep knowledge of frontend performance optimization
  • Advantage: Previous experience building SaaS management consoles or security products

What we offer you

Salary from 4000 EUR/month.
Yearly % bonus depending on the performance of the company, paid out in 2 installments.
*The final base salary component can be increased accordingly to individual skills and experience of the selected candidate.

On top of that you may look forward to:

  • Flexible working hours & Full remote within Slovakia; optional membership in major co-working spaces; in Czechia we also have offices in Prague or Brno
  • Generous employee stock plan in the form of RSUs (restricted stock units) grant not options; 4 years vesting with 1 year cliff and then quarterly
  • Meal Allowance (maximum value of the employer’s contribution per day: €4.27)
  • Wellbeing Allowance (€120/month)
  • Flexible Time Off (on top of the standard 5 weeks of vacation)
  • Flexible Paid Sick Days
  • Fully Paid Short Term Sick/Short Term Nursing Leave
  • Global gender-neutral Parental Leave (16 weeks, beyond the leave provided by the local laws) & Grandparent Leave
  • Volunteering paid day off & Additional paid Company holidays off (e.g. 4 days in 2022)
  • Pension insurance contribution
  • Premium Life Insurance covered by S1
  • Global Employee Assistance Program (confidential counseling related to both personal and work life matters), Wellness Coach:Mind Body Sleep app company access (sessions, audiobooks, classes, private coaching etc.)
  • High-end MacBook or Windows laptop, Home-office-setup gear & on top of that additional WFH Allowance
  • LinkedIn Learning platform for Hard/Soft skills Training, internal mentoring 'MentorOne' & Support for your further educational activities/trainings
  • Above-standard referral bonus
  • Yearly bonus depending on the performance of the company
  • On top of RSUs, you can benefit also from our attractive ESPP (employee stock purchase plan)
  • Optional company events for those who like to meet outside of work too - mostly in Czechia expensed as business trip (sport, BBQ, charity etc.)

SentinelOne is proud to be an Equal Employment Opportunity and Affirmative Action employer. We do not discriminate based upon race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics.

SentinelOne participates in the E-Verify Program for all U.S. based roles. 

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