Staff Endpoint Software Engineer, Prompt (Python & OS Internals)

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.

At Prompt Security, our mission is to empower organizations to safely harness the transformative power of Generative AI. As a one-stop security platform, we provide visibility, governance, and real-time protection against all Generative AI concerns, enabling organizations to innovate and prosper in the age of AI without compromising on security.

As a Staff Backend Software Engineer, you’ll build the lightweight security components that power our Generative AI Security platform. This includes developing core sensors and enforcement mechanisms that operate across diverse environments-from endpoints and browsers to production workloads-enabling real-time, adaptive security. You’ll collaborate with expert engineers, tackle high-impact security challenges, and expand your expertise in AI security, helping to shape the next generation of protection at scale.

What Will You Do?

Primary responsibilities include : 

• Continuously optimize sensor components for minimal system footprint, ensuring high performance, low resource consumption, and maximum reliability.
• Contribute to the evolution of AISPM by helping design adaptive policy logic, improving decision engines, and expanding coverage across platforms.
• Build endpoint solutions focused on security, integrating them with our platform for real-time threat detection and data protection.
• Collaborate with security engineers, QA, and product teams to reach customer/business goals.
• Stay current with the latest developments in Generative AI and platform security, incorporating relevant advancements into our agents and extensions.

What Skills and Knowledge Will You Bring?

Ideal candidates will have:

• At least 4 years of experience in Python, Node.js or comparable language
• Experience with macOS and Windows Endpoint Security
• Proficiency in OS architecture and internals
• Excellent problem-solving skills and attention to detail
• Proficiency in browser extension development (Chrome, Firefox, etc.) - Advantage

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)

Time Off & Wellbeing

• Competitive leave benefits
• Gender-neutral parental leave
• Employee Assistant Program
• Workout sessions and a Wellness App

Insurance & Financial Security

• Medical and insurance benefits
• Pension
• Employee Assistance Program (EAP)

Work Perks & Flexibility

• Global home office allowance
• Mobile phone reimbursement
• Study Fund 

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.