Senior Backend Engineer- Prompt Security

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 Senior Back-End Engineer, you will be tasked with building backend infrastructure for a new AISPM 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.

What Will You Do?

Primary responsibilities include:

• Design, develop, and maintain scalable server-side applications and APIs.

• Implement and optimize database schemas, queries, and data storage solutions.

• Collaborate with frontend developers to integrate user-facing elements with server-side logic.

• Participate in code reviews and contribute to architectural decisions.

• Troubleshoot, debug, and upgrade existing systems.

• Implement security and data protection measures.

• Work with cloud services (e.g. AWS, Azure, or GCP) to deploy and manage backend services.

• Contribute to the development of microservices architecture.

• Stay updated with emerging backend technologies and industry best practices.

What Skills and Knowledge Will You Bring?

Ideal candidates will have:

• 5+ years of Backend development experience in Node.js and Typescript

• Database Management

• API Development and Integration with experience designing and building RESTful APIs along with familiarity with GraphQL is a plus

• Experience in designing and implementing microservices

• Scalability and Performance Optimization - Understanding of caching strategies and message queues and experience with large-scale, distributed architectures

• Experience implementing authentication, authorization, and data protection mechanisms

• Excellent problem-solving skills and attention to detail

• Proactive attitude and ability to thrive in a dynamic startup environment

• Communication and collaboration skills

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:

• Study Funds- SentinelOne contributes 7.5% over your base salary (no tax ceiling is applied), and employees contribute 2.5% of their base salary

• Pension fund- SentinelOne contributes to your pension fund according to local law. Pension contribution may vary based on the selected plan.

• RSUs- 4 years vesting with 1-year cliff and then quarterly.

• Annual bonus (depending on the performance of the company) paid out in 2 cycles

• Employee Stock Purchase Plan- The plan enables employees to purchase SentinelOne stocks at discounted prices vs. market value. (the plan is subject to local taxation)

• Company time off and holidays

• Private medical insurance

• Meal allowance

• Home office allowance

• Hybrid work model- The possibility of working both from the office and working from home

• Parental Leave - Embracing a new child into the family is a unique moment for everyone! In support of that, we offer 20 weeks of fully paid leave for the birth parent and 12 weeks of paid leave for the non-birth parent

• Employee Assistance Program- Psychological sessions with certified therapists to help you overcome stress, personal and professional challenges

• Free Parking in our office building

• Music Room fully equipped room

• Wellness- workout sessions and a wellness 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.