Frontend Engineer

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 specificationsWork with the Product Manager to define specifications and refine workEnhance the quality, stability, and security of the entire team's codebaseConduct code reviewsAssist 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 ReactFamiliarity with AI toolsExperience with GraphQL and RESTAbility to swiftly delve into new products and comprehend their inner workingsCapacity to collaborate effectively with both local and remote teams across various time zonesDemonstrated technical leadership experience, shaping best practices and driving their adoptionExcellent 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 PTOPaid company wellness days and fully paid short-term sick/nursing leaveGender-neutral parental leave Insurance & Financial Security Private medical care benefitLife and disability insurancePension Insurance contributionGlobal business travel medical insuranceEmployee Assistance Program (EAP) Work Perks & Flexibility Global home office allowanceMeal allowanceHybrid 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 allowanceMultiSport benefit programWellness 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.