Senior Backend Engineer- Prompt Security

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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.

The Generative AI security field is booming, and Prompt Security is at the forefront of this revolution. This market's rapid growth demands agility and flexibility from our team. As a Backend Developer with us, you'll be navigating an exciting landscape where innovation is constant, and the ability to adapt and iterate quickly is not just an advantage—it's a necessity. We're looking for someone who thrives in fast-paced environments, someone eager to tackle new challenges and pivot with ease. This is more than a job; it's a journey into the future of cybersecurity, offering unparalleled opportunities for growth, learning, and impact. If you're passionate about staying ahead in a dynamic market and possess the agility to keep pace with its evolution, Prompt Security is your arena to shine.

What are we looking for?

We're seeking a skilled Backend Developer to design, implement, and maintain robust server-side applications. The ideal candidate will have strong expertise in server-side programming, database management, and API development. Experience with cloud platforms and microservices architecture is crucial. You'll work closely with frontend developers and other teams to create scalable, efficient, and secure backend systems that power our applications.

About the Role

You will be a key contributor to a new product focused on AI Security Posture Management (AISPM). Your work will involve building the backend infrastructure required to monitor AI assets, evaluate security risks, and generate actionable security recommendations. You’ll tackle the technical challenges of enforcing security policies and governance across the AI lifecycle, ensuring that AI models are deployed safely and remain compliant.

What will you Do?

• 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 experience or knowledge should you bring?

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

+ Experience with SQL databases

+ Proficiency with in-memory data structures and caching

+ Proficiency in database design, optimization, and query performance tuning

• API Development and Integration

+ Experience designing and building RESTful APIs

+ Familiarity with GraphQL is a plus

• Experience in designing and implementing microservices
• Scalability and Performance Optimization

+ Understanding of caching strategies and message queues

+ 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

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.