{"id":1122946,"url":"https://alion.io/job/sentinelone-senior-backend-engineer-prompt-security-node-js-typescript","title":"Senior Backend Engineer - Prompt Security (Node.js / TypeScript)","company":{"id":46,"name":"SentinelOne","domain":"sentinelone.com","url":"https://alion.io/company/sentinelone","size_band":"1001-5000","is_staffing_agency":false,"is_intermediary":false,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":87,"open_postings":23,"ghost_share":0,"stale_share":0.522,"repost_share":0,"time_to_fill_p50_days":55,"computed_at":"2026-09-23T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","hiring_geo_confidence":"structured","locations":[],"countries":[],"hiring_countries":["US"],"hiring_countries_total":1,"salary":{"min":132000,"max":182000,"currency":"USD","period":"year","gross":null,"usd_annual":182000},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"GCP","optional":false},{"name":"GraphQL","optional":false},{"name":"Node JS","optional":false},{"name":"SentinelOne","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-09-22T17:21:37Z","employer_posted_date":"2026-09-22","last_verified_at":"2026-09-23T21:49:33Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Our Purpose \nAt 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.\nAbout Us \nSentinelOne 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.\nOur 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.\nWhat Are We Looking For?\nWe’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.\nAs a Senior Back-End Engineer, you will be tasked with building backend infrastructure for our AI security product, focused on monitoring AI assets, assessing risks, and delivering actionable insights. You will work in a fast-paced, innovative environment that requires agility, adaptability, and continuous iteration. Your work will also include enforcing security policies and ensuring safe, compliant AI deployment while contributing to the future of cybersecurity.\nWhat Will You Do?\nPrimary responsibilities include:\nDesign, develop, and maintain scalable server-side applications and APIs.\nImplement and optimize database schemas, queries, and data storage solutions.\nCollaborate with frontend developers to integrate user-facing elements with server-side logic.\nParticipate in code reviews and contribute to architectural decisions.\nTroubleshoot, debug, and upgrade existing systems.\nImplement security and data protection measures.\nWork with cloud services (e.g. AWS, Azure, or GCP) to deploy and manage backend services.\nContribute to the development of microservices architecture.\nStay updated with emerging backend technologies and industry best practices.\nWhat Skills and Knowledge Will You Bring?\nIdeal candidates will have:\n5 or more years of backend development experience in Node.js and TypeScript.\nExperience with database management.\nExperience developing and integrating APIs, including designing and building RESTful APIs; familiarity with GraphQL is a plus.\nExperience designing and implementing microservices.\nExperience with scalability and performance optimization, including caching strategies, message queues, and large-scale, distributed architectures.\nExperience implementing authentication, authorization, and data protection mechanisms.\nStrong problem-solving skills.\nCommunication and collaboration skills.\nWhy SentinelOne?\nAI 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.\nWe invest in our Sentinels with comprehensive, competitive benefits designed to support you and your family:\nEquity & Rewards\nRestricted Stock Units (RSUs)\nEmployee Stock Purchase Plan (ESPP)\nTime Off & Wellbeing\nFlexible time off\nPaid company holidays and paid sick time\nGender-neutral parental leave\nGrandparent leave\nInsurance & Financial Security\nMedical, dental, and vision coverage\n401(k) retirement plan with company match\nLife and disability insurance\nHealth and dependent care FSA\nVoluntary benefits (hospital, accident, critical illness)\nEmployee Assistance Program (EAP)\nARAG pre-paid legal\nNationwide pet insurance\nCancer Care program\nGlobal business travel medical insurance\nWork Perks & Flexibility\nHome office allowance\nMobile phone reimbursement\nWellness & Lifestyle\nWellness coach\nWellness/gym reimbursement\nFertility coverage\nAdoption & surrogacy reimbursement\nThis U.S. role has a base pay range that will vary based on the location of the candidate. For some locations, a different pay range may apply. If so, this range will be provided to you during the recruiting process. You can also reach out to the recruiter with any questions.\nBase Salary Range\n$132,000—$182,000 USD\nSentinelOne 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.\nSentinelOne participates in the E-Verify Program for all U.S. based roles.","description_format":"text","description_chars":5586,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Continuous learning","Equity","Flexible time off","Health insurance","Home office","Parental leave","Restricted stock units","Retirement plans"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Artificial Intelligence","Cybersecurity","Information Security","Security Operations"],"lifecycle":[{"event":"open","at":"2026-09-22T19:50:27Z"}],"liveness":{"score":63,"band":"ok","label":"Likely open","p_open":1,"p_active":0.632,"p_room":1,"age_days":0,"expected_fill_days":55,"reasons":["conf:0","stale_co","velocity","win:early","comp:brand"],"computed_at":"2026-09-23T05:45:00Z"},"pay":{"stated_usd_annual":182000,"is_top_pay":false},"html_url":"https://alion.io/job/sentinelone-senior-backend-engineer-prompt-security-node-js-typescript","json_url":"https://alion.io/job/sentinelone-senior-backend-engineer-prompt-security-node-js-typescript.json","meta":{"generated_at":"2026-09-23T21:51:58Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers"}}