Staff Frontend Engineer (TypeScript, React)

Our Purpose

At SentinelOne, we are driven by a clear purpose: to give the advantage to those who secure our future. As AI reshapes how organizations build, operate, and innovate, the responsibility to protect them becomes more critical than ever. When you join SentinelOne, your work helps protect global enterprises, critical infrastructure, and the technologies shaping tomorrow. If you are motivated by meaningful challenges and want your impact to be real, measurable, and global, you will find purpose here.

About Us

SentinelOne is a company at the intersection of AI and security, pioneering a new operating model for cybersecurity. Our AI-native platform unifies protection across endpoint, cloud, identity, data, and AI systems to deliver autonomous detection and response with clarity and speed. By combining real-time analytics, intelligent automation, and a unified data foundation, we reduce noise, simplify complexity, and empower security teams to focus on what truly matters.

Our teams are builders, problem-solvers, and innovators committed to shaping the future of security. If you are excited to solve hard problems alongside talented, mission-driven people, we invite you to help us build a safer future for humanity.

What Are We Looking For?

We’re looking for people who are relentlessly curious and committed to continuous learning. AI is reshaping every function across our business, and we enable every team member, regardless of role or level, to build fluency in AI tools and concepts. Those who thrive here actively seek out new solutions, experiment thoughtfully, and apply what they learn to drive better, faster, smarter outcomes.

As a Staff Frontend Engineer you'll be responsible for developing new functionalities for the Singularity Data-Lake products, which process several Petabytes of data daily. If you are a versatile engineer with a sharp product sensibility, you'll have remarkable opportunities to directly influence how our customers utilize our platform for threat hunting and building cutting-edge threat intelligence solutions. Our roadmap includes an array of exciting new functionalities, adding advanced AI capabilities, and ambitious cost and performance objectives to efficiently process vast amounts of data, all to the advantage of our customers. Our mission is to elevate our  Singularity Data-Lake security applications portfolio by introducing leading-edge solutions and features.

What Will You Do?

Primary responsibilities include:

• Software Development (70-80% of the time)
• Formulate and review technical specifications
• Work with the Product Manager to define specifications and refine work
• Enhance the quality, stability, and security of the entire team's codebase
• Conduct code reviews
• Assist team members in problem-solving, offer constructive feedback, and participate in daily scrum standups

What Skills and Knowledge Will You Bring?

Ideal candidates will have:

• Proficiency in development projects in TypeScript and React
• Familiarity with AI tools
• Experience with GraphQL and REST
• Ability to swiftly delve into new products and comprehend their inner workings
• Capacity to collaborate effectively with both local and remote teams across various time zones
• Demonstrated technical leadership experience, shaping best practices and driving their adoption
• Excellent communication skills, as you'll regularly liaise with product and other engineering teams

Why SentinelOne?

AI is redefining how the world operates and rewriting the rules of security in real time, and SentinelOne was built for this moment. From day one, we architected an AI-native platform designed to operate at machine speed, not as an add-on to legacy systems but as the foundation itself. If you want to build where innovation and impact move together, this is that place.

We invest in our Sentinels with comprehensive, competitive benefits designed to support you and your family:

Equity & Rewards

• Restricted Stock Units (RSUs)
• Employee Stock Purchase Plan (ESPP)
• Performance-based bonus

Time Off & Wellbeing

• Flexible time off, on top of the standard 5 weeks PTO
• Paid company wellness days and fully paid short-term sick/nursing leave
• Gender-neutral parental leave

Insurance & Financial Security

• Private medical care benefit
• Life and disability insurance
• Pension Insurance contribution
• Global business travel medical insurance
• Employee Assistance Program (EAP)

Work Perks & Flexibility

• Global home office allowance
• Meal allowance
• Hybrid work in Prague (Karlin), Brno (Clubco) or remote in CZ/SK. Only Prague-based employees are required to work from the office at least 2 days//week.

Wellness & Lifestyle

• Wellbeing allowance
• MultiSport benefit program
• Wellness Coach app

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.